diff --git a/zt-framework/zt-spring-boot-starter-biz-business/src/main/java/com/zt/plat/framework/business/core/util/BusinessDeptHandleUtil.java b/zt-framework/zt-spring-boot-starter-biz-business/src/main/java/com/zt/plat/framework/business/core/util/BusinessDeptHandleUtil.java
index 03502d9c..0f18c4bb 100644
--- a/zt-framework/zt-spring-boot-starter-biz-business/src/main/java/com/zt/plat/framework/business/core/util/BusinessDeptHandleUtil.java
+++ b/zt-framework/zt-spring-boot-starter-biz-business/src/main/java/com/zt/plat/framework/business/core/util/BusinessDeptHandleUtil.java
@@ -8,6 +8,7 @@ import com.zt.plat.framework.common.util.json.JsonUtils;
 import com.zt.plat.framework.common.util.spring.SpringUtils;
 import com.zt.plat.framework.security.core.LoginUser;
 import com.zt.plat.framework.tenant.core.context.CompanyContextHolder;
+import com.zt.plat.framework.tenant.core.context.DeptContextHolder;
 import com.zt.plat.framework.web.core.util.WebFrameworkUtils;
 import com.zt.plat.module.system.api.dept.DeptApi;
 import com.zt.plat.module.system.api.dept.dto.CompanyDeptInfoRespDTO;
@@ -197,6 +198,9 @@ public class BusinessDeptHandleUtil {
         }
         CompanyContextHolder.setIgnore(false);
         CompanyContextHolder.setCompanyId(Long.valueOf(info.getCompanyId()));
+        DeptContextHolder.setIgnore(false);
+        DeptContextHolder.setCompanyId(Long.valueOf(info.getCompanyId()));
+        DeptContextHolder.setDeptId(Long.valueOf(info.getDeptId()));
         return true;
     }
 }
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/docs/数据权限忽略与上下文说明.md b/zt-framework/zt-spring-boot-starter-biz-data-permission/docs/数据权限忽略与上下文说明.md
new file mode 100644
index 00000000..669a0729
--- /dev/null
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/docs/数据权限忽略与上下文说明.md
@@ -0,0 +1,42 @@
+# 数据权限忽略与上下文覆盖说明
+
+本文说明新增的公司/部门数据权限忽略能力，以及部门上下文对数据权限的覆盖策略。
+
+## 新增注解
+
+- `@CompanyDataPermissionIgnore(enable = "true")`
+- `@DeptDataPermissionIgnore(enable = "true")`
+
+用法：
+- 可标记在类或方法上。
+- `enable` 支持 Spring EL，计算结果为 `true` 时生效，默认开启。
+- 生效后，在方法执行期间临时设置忽略标记，结束后自动恢复。
+
+## 忽略生效范围
+
+- 公司数据权限：切面在进入方法时将 `CompanyContextHolder.setIgnore(true)`，数据权限规则检测到后直接放行。
+- 部门数据权限：切面在进入方法时将 `DeptContextHolder.setIgnore(true)`，部门数据权限规则检测到后直接放行。
+
+## 部门上下文覆盖策略
+
+当未忽略部门数据权限且上下文存在有效部门 ID 时：
+- 优先使用上下文中的单一部门作为过滤条件，避免因默认的 `ALL` 或“无部门且不可查看自己”导致放行或误判无权。
+- 上下文部门不会修改原有的数据权限 DTO，仅在当前计算中使用。
+- 若上下文公司与缓存公司不一致，会记录告警日志，但仍按上下文部门过滤。
+
+## 典型场景
+
+1) **任务/全局调用需要暂时关闭数据权限**
+   - 在方法上标记 `@DeptDataPermissionIgnore` 或 `@CompanyDataPermissionIgnore`。
+
+2) **带部门上下文的接口调用**
+   - 请求预先设置 `DeptContextHolder.setContext(deptId, companyId)`。
+   - 即便数据权限声明为 `all=true`，也会按该部门过滤，避免读出全量。
+
+3) **无部门权限但指定了上下文部门**
+   - 即使 `deptIds` 为空且 `self=false`，只要上下文提供部门，也会使用该部门过滤，而非直接判定无权。
+
+## 注意事项
+
+- 忽略标记只作用于当前线程上下文，切面会在 `finally` 中恢复旧值，嵌套调用安全。
+- 若需要同时忽略公司与部门数据权限，可叠加两个注解或在业务代码中分别设置忽略标记。
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/config/ZtDataPermissionAutoConfiguration.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/config/ZtDataPermissionAutoConfiguration.java
index 0a1c5350..1c7d9e91 100644
--- a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/config/ZtDataPermissionAutoConfiguration.java
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/config/ZtDataPermissionAutoConfiguration.java
@@ -1,6 +1,8 @@
 package com.zt.plat.framework.datapermission.config;
 
+import com.zt.plat.framework.datapermission.core.aop.CompanyDataPermissionIgnoreAspect;
 import com.zt.plat.framework.datapermission.core.aop.DataPermissionAnnotationAdvisor;
+import com.zt.plat.framework.datapermission.core.aop.DeptDataPermissionIgnoreAspect;
 import com.zt.plat.framework.datapermission.core.db.DataPermissionRuleHandler;
 import com.zt.plat.framework.datapermission.core.rule.DataPermissionRule;
 import com.zt.plat.framework.datapermission.core.rule.DataPermissionRuleFactory;
@@ -43,4 +45,14 @@ public class ZtDataPermissionAutoConfiguration {
         return new DataPermissionAnnotationAdvisor();
     }
 
+    @Bean
+    public DeptDataPermissionIgnoreAspect deptDataPermissionIgnoreAspect() {
+        return new DeptDataPermissionIgnoreAspect();
+    }
+
+    @Bean
+    public CompanyDataPermissionIgnoreAspect companyDataPermissionIgnoreAspect() {
+        return new CompanyDataPermissionIgnoreAspect();
+    }
+
 }
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/annotation/CompanyDataPermissionIgnore.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/annotation/CompanyDataPermissionIgnore.java
new file mode 100644
index 00000000..ecc4f1bb
--- /dev/null
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/annotation/CompanyDataPermissionIgnore.java
@@ -0,0 +1,21 @@
+package com.zt.plat.framework.datapermission.core.annotation;
+
+import java.lang.annotation.*;
+
+/**
+ * 忽略公司数据权限的注解。
+ * <p>
+ * 标记在方法或类上时，匹配的调用会临时忽略公司类型的数据权限规则。
+ */
+@Target({ElementType.TYPE, ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+public @interface CompanyDataPermissionIgnore {
+
+    /**
+     * 是否开启忽略，默认开启。
+     * 支持 Spring EL 表达式，返回 true 时生效。
+     */
+    String enable() default "true";
+}
\ No newline at end of file
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/annotation/DeptDataPermissionIgnore.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/annotation/DeptDataPermissionIgnore.java
new file mode 100644
index 00000000..de80a7d1
--- /dev/null
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/annotation/DeptDataPermissionIgnore.java
@@ -0,0 +1,21 @@
+package com.zt.plat.framework.datapermission.core.annotation;
+
+import java.lang.annotation.*;
+
+/**
+ * 忽略部门数据权限的注解。
+ * <p>
+ * 标记在方法或类上时，匹配的调用会临时忽略部门类型的数据权限规则。
+ */
+@Target({ElementType.TYPE, ElementType.METHOD})
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@Inherited
+public @interface DeptDataPermissionIgnore {
+
+    /**
+     * 是否开启忽略，默认开启。
+     * 支持 Spring EL 表达式，返回 true 时生效。
+     */
+    String enable() default "true";
+}
\ No newline at end of file
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/aop/CompanyDataPermissionIgnoreAspect.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/aop/CompanyDataPermissionIgnoreAspect.java
new file mode 100644
index 00000000..ae051a25
--- /dev/null
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/aop/CompanyDataPermissionIgnoreAspect.java
@@ -0,0 +1,31 @@
+package com.zt.plat.framework.datapermission.core.aop;
+
+import com.zt.plat.framework.common.util.spring.SpringExpressionUtils;
+import com.zt.plat.framework.datapermission.core.annotation.CompanyDataPermissionIgnore;
+import com.zt.plat.framework.tenant.core.context.CompanyContextHolder;
+import lombok.extern.slf4j.Slf4j;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+
+/**
+ * 公司数据权限忽略切面，基于 {@link CompanyDataPermissionIgnore} 注解。
+ */
+@Aspect
+@Slf4j
+public class CompanyDataPermissionIgnoreAspect {
+
+    @Around("@within(companyDataPermissionIgnore) || @annotation(companyDataPermissionIgnore)")
+    public Object around(ProceedingJoinPoint joinPoint, CompanyDataPermissionIgnore companyDataPermissionIgnore) throws Throwable {
+        boolean oldIgnore = CompanyContextHolder.isIgnore();
+        try {
+            Object enable = SpringExpressionUtils.parseExpression(companyDataPermissionIgnore.enable());
+            if (Boolean.TRUE.equals(enable)) {
+                CompanyContextHolder.setIgnore(true);
+            }
+            return joinPoint.proceed();
+        } finally {
+            CompanyContextHolder.setIgnore(oldIgnore);
+        }
+    }
+}
\ No newline at end of file
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/aop/DeptDataPermissionIgnoreAspect.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/aop/DeptDataPermissionIgnoreAspect.java
new file mode 100644
index 00000000..4ee9054e
--- /dev/null
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/aop/DeptDataPermissionIgnoreAspect.java
@@ -0,0 +1,31 @@
+package com.zt.plat.framework.datapermission.core.aop;
+
+import com.zt.plat.framework.common.util.spring.SpringExpressionUtils;
+import com.zt.plat.framework.datapermission.core.annotation.DeptDataPermissionIgnore;
+import com.zt.plat.framework.tenant.core.context.DeptContextHolder;
+import lombok.extern.slf4j.Slf4j;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+
+/**
+ * 部门数据权限忽略切面，基于 {@link DeptDataPermissionIgnore} 注解。
+ */
+@Aspect
+@Slf4j
+public class DeptDataPermissionIgnoreAspect {
+
+    @Around("@within(deptDataPermissionIgnore) || @annotation(deptDataPermissionIgnore)")
+    public Object around(ProceedingJoinPoint joinPoint, DeptDataPermissionIgnore deptDataPermissionIgnore) throws Throwable {
+        boolean oldIgnore = DeptContextHolder.shouldIgnore();
+        try {
+            Object enable = SpringExpressionUtils.parseExpression(deptDataPermissionIgnore.enable());
+            if (Boolean.TRUE.equals(enable)) {
+                DeptContextHolder.setIgnore(true);
+            }
+            return joinPoint.proceed();
+        } finally {
+            DeptContextHolder.setIgnore(oldIgnore);
+        }
+    }
+}
\ No newline at end of file
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/db/DataPermissionRuleHandler.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/db/DataPermissionRuleHandler.java
index 0ad24ca5..6f1e3f48 100644
--- a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/db/DataPermissionRuleHandler.java
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/db/DataPermissionRuleHandler.java
@@ -10,7 +10,9 @@ import net.sf.jsqlparser.expression.Expression;
 import net.sf.jsqlparser.expression.operators.conditional.AndExpression;
 import net.sf.jsqlparser.schema.Table;
 
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 import static com.zt.plat.framework.security.core.util.SecurityFrameworkUtils.skipPermissionCheck;
 
@@ -41,6 +43,7 @@ public class DataPermissionRuleHandler implements MultiDataPermissionHandler {
         }
 
         // 生成条件
+        final Set<String> processed = new HashSet<>();
         Expression allExpression = null;
         for (DataPermissionRule rule : rules) {
             // 判断表名是否匹配
@@ -49,6 +52,14 @@ public class DataPermissionRuleHandler implements MultiDataPermissionHandler {
                 continue;
             }
 
+            // 同一张表 + 同一别名 + 同一规则 在一次 SQL 解析内仅处理一次，避免重复拼接条件
+            String aliasName = table.getAlias() == null ? "" : table.getAlias().getName();
+            String key = tableName + "|" + aliasName + "|" + rule.getClass().getName();
+            if (processed.contains(key)) {
+                continue;
+            }
+            processed.add(key);
+
             // 单条规则的条件
             Expression oneExpress = rule.getExpression(tableName, table.getAlias());
             if (oneExpress == null) {
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/company/CompanyDataPermissionRule.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/company/CompanyDataPermissionRule.java
index f7d7e84d..25909d05 100644
--- a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/company/CompanyDataPermissionRule.java
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/company/CompanyDataPermissionRule.java
@@ -5,6 +5,7 @@ import cn.hutool.core.util.StrUtil;
 import com.zt.plat.framework.common.util.collection.CollectionUtils;
 import com.zt.plat.framework.datapermission.core.rule.DataPermissionRule;
 import com.zt.plat.framework.mybatis.core.util.MyBatisUtils;
+import com.zt.plat.framework.tenant.core.context.CompanyContextHolder;
 import lombok.AllArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import net.sf.jsqlparser.expression.Alias;
@@ -49,6 +50,10 @@ public class CompanyDataPermissionRule implements DataPermissionRule {
 
     @Override
     public Expression getExpression(String tableName, Alias tableAlias) {
+        // 显式忽略公司数据权限时直接放行
+        if (CompanyContextHolder.isIgnore()) {
+            return null;
+        }
         // 业务拼接 Company 的条件
         if (getLoginUserCompanyId() == null) {
             // 如果没有登录用户的公司编号，则不需要拼接条件
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRule.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRule.java
index e54a7f54..ea4a8a93 100644
--- a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRule.java
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/main/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRule.java
@@ -156,21 +156,28 @@ public class DeptDataPermissionRule implements DataPermissionRule {
             }
         }
 
-        // 情况一，如果是 ALL 可查看全部，则无需拼接条件
-        if (deptDataPermission.getAll()) {
+        // 计算有效的部门与自查标记：当存在上下文部门且未被忽略时，强制仅使用该部门，以避免默认全量或空权限分支
+        Set<Long> effectiveDeptIds = deptDataPermission.getDeptIds();
+        Boolean effectiveSelf = deptDataPermission.getSelf();
+        if (!DeptContextHolder.shouldIgnore() && ctxDeptId != null && ctxDeptId > 0L) {
+            effectiveDeptIds = CollUtil.newHashSet(ctxDeptId);
+        }
+
+        // 情况一：仅当不存在上下文部门时，且 ALL 可查看全部，才无需拼接条件；若存在上下文部门则仍需基于该部门过滤
+        if (ctxDeptId == null && deptDataPermission.getAll()) {
             return null;
         }
 
-        // 情况二，即不能查看部门，又不能查看自己，则说明 100% 无权限
-        if (CollUtil.isEmpty(deptDataPermission.getDeptIds())
-                && Boolean.FALSE.equals(deptDataPermission.getSelf())) {
+        // 情况二：仅在有效部门集合为空且不可查看自己时，才认为无权限；若上下文提供部门，则跳过该兜底
+        if (CollUtil.isEmpty(effectiveDeptIds)
+                && Boolean.FALSE.equals(effectiveSelf)) {
             return new EqualsTo(null, null); // WHERE null = null，可以保证返回的数据为空
         }
 
         // 情况三，拼接 Dept 和 Company User 的条件，最后组合
-        Expression deptExpression = buildDeptExpression(tableName, tableAlias, deptDataPermission.getDeptIds());
+        Expression deptExpression = buildDeptExpression(tableName, tableAlias, effectiveDeptIds);
 //        Expression deptExpression = buildDeptExpression(tableName, tableAlias, deptDataPermission.getDeptIds());
-        Expression userExpression = buildUserExpression(tableName, tableAlias, deptDataPermission.getSelf(), loginUser.getId());
+        Expression userExpression = buildUserExpression(tableName, tableAlias, effectiveSelf, loginUser.getId());
         if (deptExpression == null && userExpression == null) {
             // TODO ZT：获得不到条件的时候，暂时不抛出异常，而是不返回数据
             log.warn("[getExpression][LoginUser({}) Table({}/{}) DeptDataPermission({}) 构建的条件为空]",
diff --git a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/test/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRuleTest.java b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/test/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRuleTest.java
index 77f194ce..e68941db 100644
--- a/zt-framework/zt-spring-boot-starter-biz-data-permission/src/test/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRuleTest.java
+++ b/zt-framework/zt-spring-boot-starter-biz-data-permission/src/test/java/com/zt/plat/framework/datapermission/core/rule/dept/DeptDataPermissionRuleTest.java
@@ -264,7 +264,7 @@ class DeptDataPermissionRuleTest extends BaseMockitoUnitTest {
         }
     }
 
-    @Test // 上下文部门存在且公司一致时，清空原集合并覆盖为单一 deptId
+    @Test // 上下文部门存在且公司一致时，表达式按上下文 deptId 生效，但不修改原数据权限集合
     void testGetExpression_deptContextOverride_companyMatch() {
         try (MockedStatic<SecurityFrameworkUtils> secMock = mockStatic(SecurityFrameworkUtils.class);
              MockedStatic<DeptContextHolder> deptCtxMock = mockStatic(DeptContextHolder.class);
@@ -292,12 +292,13 @@ class DeptDataPermissionRuleTest extends BaseMockitoUnitTest {
             Expression expression = rule.getExpression(tableName, tableAlias);
 
             assertEquals("u.dept_id IN (99)", expression.toString());
-            assertEquals(CollUtil.newLinkedHashSet(99L), deptDataPermission.getDeptIds());
+            // 原始权限对象不被修改，只是临时使用上下文 deptId 计算
+            assertEquals(CollUtil.newLinkedHashSet(10L, 20L), deptDataPermission.getDeptIds());
             assertEquals(1L, deptDataPermission.getCompanyId());
         }
     }
 
-    @Test // 上下文部门存在但公司不一致时，记录告警并保持原逻辑（不覆盖）
+    @Test // 上下文部门存在但公司不一致时，仍按上下文 deptId 过滤，原数据权限保持不变
     void testGetExpression_deptContextOverride_companyMismatch() {
         try (MockedStatic<SecurityFrameworkUtils> secMock = mockStatic(SecurityFrameworkUtils.class);
              MockedStatic<DeptContextHolder> deptCtxMock = mockStatic(DeptContextHolder.class);
@@ -324,10 +325,72 @@ class DeptDataPermissionRuleTest extends BaseMockitoUnitTest {
 
             Expression expression = rule.getExpression(tableName, tableAlias);
 
-            assertEquals("u.dept_id IN (10)", expression.toString());
-            assertEquals(CollUtil.newLinkedHashSet(10L), deptDataPermission.getDeptIds());
-            assertEquals(1L, deptDataPermission.getCompanyId());
+        assertEquals("u.dept_id IN (99)", expression.toString());
+        // 原始权限对象不被修改
+        assertEquals(CollUtil.newLinkedHashSet(10L), deptDataPermission.getDeptIds());
+        assertEquals(1L, deptDataPermission.getCompanyId());
         }
     }
 
+    @Test // ALL 权限但存在上下文部门时，仍按上下文部门过滤
+    void testGetExpression_allPermission_withCtxDept() {
+    try (MockedStatic<SecurityFrameworkUtils> secMock = mockStatic(SecurityFrameworkUtils.class);
+         MockedStatic<DeptContextHolder> deptCtxMock = mockStatic(DeptContextHolder.class);
+         MockedStatic<CompanyContextHolder> companyCtxMock = mockStatic(CompanyContextHolder.class)) {
+
+        String tableName = "t_user";
+        Alias tableAlias = new Alias("u");
+        LoginUser loginUser = randomPojo(LoginUser.class, o -> o.setId(1L)
+            .setUserType(UserTypeEnum.ADMIN.getValue()));
+        secMock.when(SecurityFrameworkUtils::getLoginUser).thenReturn(loginUser);
+
+        DeptDataPermissionRespDTO deptDataPermission = new DeptDataPermissionRespDTO()
+            .setAll(true)
+            .setDeptIds(CollUtil.newLinkedHashSet(10L));
+        when(permissionApi.getDeptDataPermission(same(1L))).thenReturn(success(deptDataPermission));
+
+        deptCtxMock.when(DeptContextHolder::shouldIgnore).thenReturn(false);
+        deptCtxMock.when(DeptContextHolder::getDeptId).thenReturn(99L);
+        deptCtxMock.when(DeptContextHolder::getCompanyId).thenReturn(1L);
+        companyCtxMock.when(CompanyContextHolder::getCompanyId).thenReturn(1L);
+        companyCtxMock.when(CompanyContextHolder::isIgnore).thenReturn(false);
+
+        rule.addDeptColumn(tableName, "dept_id");
+
+        Expression expression = rule.getExpression(tableName, tableAlias);
+
+        assertEquals("u.dept_id IN (99)", expression.toString());
+    }
+    }
+
+    @Test // 无部门且不可查看自己，但上下文提供部门时，应使用上下文部门而非判定无权限
+    void testGetExpression_noDeptNoSelf_withCtxDept() {
+    try (MockedStatic<SecurityFrameworkUtils> secMock = mockStatic(SecurityFrameworkUtils.class);
+         MockedStatic<DeptContextHolder> deptCtxMock = mockStatic(DeptContextHolder.class);
+         MockedStatic<CompanyContextHolder> companyCtxMock = mockStatic(CompanyContextHolder.class)) {
+
+        String tableName = "t_user";
+        Alias tableAlias = new Alias("u");
+        LoginUser loginUser = randomPojo(LoginUser.class, o -> o.setId(1L)
+            .setUserType(UserTypeEnum.ADMIN.getValue()));
+        secMock.when(SecurityFrameworkUtils::getLoginUser).thenReturn(loginUser);
+
+        DeptDataPermissionRespDTO deptDataPermission = new DeptDataPermissionRespDTO()
+            .setSelf(false);
+        when(permissionApi.getDeptDataPermission(same(1L))).thenReturn(success(deptDataPermission));
+
+        deptCtxMock.when(DeptContextHolder::shouldIgnore).thenReturn(false);
+        deptCtxMock.when(DeptContextHolder::getDeptId).thenReturn(88L);
+        deptCtxMock.when(DeptContextHolder::getCompanyId).thenReturn(1L);
+        companyCtxMock.when(CompanyContextHolder::getCompanyId).thenReturn(1L);
+        companyCtxMock.when(CompanyContextHolder::isIgnore).thenReturn(false);
+
+        rule.addDeptColumn(tableName, "dept_id");
+
+        Expression expression = rule.getExpression(tableName, tableAlias);
+
+        assertEquals("u.dept_id IN (88)", expression.toString());
+    }
+    }
+
 }
diff --git a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/BpmProcessInstanceController.java b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/BpmProcessInstanceController.java
index 53ea6faf..d55f27a0 100644
--- a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/BpmProcessInstanceController.java
+++ b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/BpmProcessInstanceController.java
@@ -1,5 +1,6 @@
 package com.zt.plat.module.bpm.controller.admin.task;
 
+import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.util.StrUtil;
 import com.zt.plat.framework.business.core.util.DeptUtil;
@@ -11,8 +12,10 @@ import com.zt.plat.module.bpm.controller.admin.task.vo.instance.*;
 import com.zt.plat.module.bpm.convert.task.BpmProcessInstanceConvert;
 import com.zt.plat.module.bpm.dal.dataobject.definition.BpmCategoryDO;
 import com.zt.plat.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO;
+import com.zt.plat.module.bpm.dal.dataobject.task.BpmProcessInstanceCopyDO;
 import com.zt.plat.module.bpm.service.definition.BpmCategoryService;
 import com.zt.plat.module.bpm.service.definition.BpmProcessDefinitionService;
+import com.zt.plat.module.bpm.service.task.BpmProcessInstanceCopyService;
 import com.zt.plat.module.bpm.service.task.BpmProcessInstanceService;
 import com.zt.plat.module.bpm.service.task.BpmTaskService;
 import com.zt.plat.module.system.api.dept.DeptApi;
@@ -24,6 +27,8 @@ import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.annotation.Resource;
 import jakarta.validation.Valid;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.collections4.list.SetUniqueList;
 import org.flowable.engine.history.HistoricProcessInstance;
 import org.flowable.engine.repository.ProcessDefinition;
 import org.flowable.task.api.Task;
@@ -31,6 +36,8 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -53,6 +60,8 @@ public class BpmProcessInstanceController {
     private BpmProcessDefinitionService processDefinitionService;
     @Resource
     private BpmCategoryService categoryService;
+    @Resource
+    private BpmProcessInstanceCopyService processInstanceCopyService;
 
     @Resource
     private AdminUserApi adminUserApi;
@@ -181,6 +190,32 @@ public class BpmProcessInstanceController {
         return success(processInstanceService.getApprovalDetail(getLoginUserId(), reqVO));
     }
 
+    @GetMapping("/copy-list-by-process-instance-id")
+    @Operation(summary = "根据流程实例编号获取抄送列表")
+    @Parameter(name = "id", description = "流程实例的编号", required = true)
+    @PreAuthorize("@ss.hasPermission('bpm:process-instance:query')")
+    public CommonResult<List<BpmProcessInstanceCopyVO>> getCopyListByProcessInstanceId(@RequestParam("processInstanceId") String processInstanceId) {
+        List<BpmProcessInstanceCopyDO> copyDOList = processInstanceCopyService.getByProcessInstanceId(processInstanceId);
+        if (CollectionUtils.isEmpty(copyDOList)) {
+            return success(new ArrayList<>(0));
+        }
+        List<BpmProcessInstanceCopyVO> copyVOList = new ArrayList<>(copyDOList.size());
+        SetUniqueList<Long> userIdList = SetUniqueList.setUniqueList(new ArrayList<>());
+        for (BpmProcessInstanceCopyDO copyDO : copyDOList) {
+            BpmProcessInstanceCopyVO copyVO = new BpmProcessInstanceCopyVO();
+            BeanUtil.copyProperties(copyDO, copyVO);
+            copyVOList.add(copyVO);
+            userIdList.add(copyDO.getStartUserId());
+            userIdList.add(copyDO.getUserId());
+        }
+        Map<Long, AdminUserRespDTO> userMap = adminUserApi.getUserMap(userIdList);
+        for (BpmProcessInstanceCopyVO copyVO : copyVOList) {
+            copyVO.setStartUserName(userMap.get(copyVO.getStartUserId()).getNickname());
+            copyVO.setUserName(userMap.get(copyVO.getUserId()).getNickname());
+        }
+        return success(copyVOList);
+    }
+
     @GetMapping("/get-next-approval-nodes")
     @Operation(summary = "获取下一个执行的流程节点")
     @PreAuthorize("@ss.hasPermission('bpm:process-instance:query')")
diff --git a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/vo/instance/BpmProcessInstanceCopyVO.java b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/vo/instance/BpmProcessInstanceCopyVO.java
new file mode 100644
index 00000000..0012c190
--- /dev/null
+++ b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/controller/admin/task/vo/instance/BpmProcessInstanceCopyVO.java
@@ -0,0 +1,88 @@
+package com.zt.plat.module.bpm.controller.admin.task.vo.instance;
+
+import com.zt.plat.framework.mybatis.core.dataobject.BaseDO;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+/**
+ * 流程抄送 VO
+ *
+ * @author kr
+ * @since 2025-12-31
+ */
+@Data
+@NoArgsConstructor
+public class BpmProcessInstanceCopyVO extends BaseDO {
+
+    /**
+     * 编号
+     */
+    private Long id;
+
+    /**
+     * 发起人 Id
+     */
+    @Schema(description ="发起人 Id")
+    private Long startUserId;
+
+    /**
+     * 发起人 姓名
+     */
+    @Schema(description ="发起人 姓名")
+    private String startUserName;
+    /**
+     * 流程名
+     */
+    @Schema(description ="流程名")
+    private String processInstanceName;
+    /**
+     * 流程实例的编号
+     */
+    @Schema(description ="流程实例的编号")
+    private String processInstanceId;
+    /**
+     * 流程实例的流程定义编号
+     */
+    @Schema(description ="流程实例的流程定义编号")
+    private String processDefinitionId;
+    /**
+     * 流程分类
+     */
+    @Schema(description ="流程分类")
+    private String category;
+    /**
+     * 流程活动的编号
+     */
+    @Schema(description ="流程活动的编号")
+    private String activityId;
+    /**
+     * 流程活动的名字
+     */
+    @Schema(description ="流程活动的名字")
+    private String activityName;
+    /**
+     * 流程活动的编号
+     */
+    @Schema(description ="流程活动的编号")
+    private String taskId;
+
+    /**
+     * 用户编号（被抄送的用户编号）
+     */
+    @Schema(description ="用户编号（被抄送的用户编号）")
+    private Long userId;
+
+    /**
+     * 用户姓名（被抄送的用户姓名）
+     */
+    @Schema(description ="用户姓名（被抄送的用户姓名）")
+    private String userName;
+
+    /**
+     * 抄送意见
+     */
+    @Schema(description ="抄送意见")
+    private String reason;
+
+}
diff --git a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/dal/mysql/task/BpmProcessInstanceCopyMapper.java b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/dal/mysql/task/BpmProcessInstanceCopyMapper.java
index 61a73c3c..b35d217d 100644
--- a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/dal/mysql/task/BpmProcessInstanceCopyMapper.java
+++ b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/dal/mysql/task/BpmProcessInstanceCopyMapper.java
@@ -7,6 +7,8 @@ import com.zt.plat.module.bpm.controller.admin.task.vo.instance.BpmProcessInstan
 import com.zt.plat.module.bpm.dal.dataobject.task.BpmProcessInstanceCopyDO;
 import org.apache.ibatis.annotations.Mapper;
 
+import java.util.List;
+
 @Mapper
 public interface BpmProcessInstanceCopyMapper extends BaseMapperX<BpmProcessInstanceCopyDO> {
 
@@ -22,4 +24,8 @@ public interface BpmProcessInstanceCopyMapper extends BaseMapperX<BpmProcessInst
         delete(BpmProcessInstanceCopyDO::getProcessInstanceId, processInstanceId);
     }
 
+    default List<BpmProcessInstanceCopyDO> getByProcessInstanceId(String processInstanceId) {
+        return selectList(BpmProcessInstanceCopyDO::getProcessInstanceId, processInstanceId);
+    }
+
 }
diff --git a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyService.java b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyService.java
index e5f06b6f..76350bc8 100644
--- a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyService.java
+++ b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyService.java
@@ -7,6 +7,7 @@ import jakarta.validation.constraints.NotEmpty;
 import org.flowable.bpmn.model.FlowNode;
 
 import java.util.Collection;
+import java.util.List;
 
 /**
  * 流程抄送 Service 接口
@@ -57,4 +58,12 @@ public interface BpmProcessInstanceCopyService {
      */
     void deleteProcessInstanceCopy(String processInstanceId);
 
+    /**
+     * 获得流程的抄送列表
+     *
+     * @param processInstanceId 流程实例 ID
+     * @return 抄送流程列表
+     */
+    List<BpmProcessInstanceCopyDO> getByProcessInstanceId(String processInstanceId);
+
 }
diff --git a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyServiceImpl.java b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyServiceImpl.java
index dd842b9f..5fec3947 100644
--- a/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyServiceImpl.java
+++ b/zt-module-bpm/zt-module-bpm-server/src/main/java/com/zt/plat/module/bpm/service/task/BpmProcessInstanceCopyServiceImpl.java
@@ -93,4 +93,9 @@ public class BpmProcessInstanceCopyServiceImpl implements BpmProcessInstanceCopy
         processInstanceCopyMapper.deleteByProcessInstanceId(processInstanceId);
     }
 
+    @Override
+    public List<BpmProcessInstanceCopyDO> getByProcessInstanceId(String processInstanceId) {
+        return processInstanceCopyMapper.getByProcessInstanceId(processInstanceId);
+    }
+
 }
diff --git a/zt-module-bpm/zt-module-bpm-server/src/main/resources/logback-spring.xml b/zt-module-bpm/zt-module-bpm-server/src/main/resources/logback-spring.xml
index 0e551414..51a9a489 100644
--- a/zt-module-bpm/zt-module-bpm-server/src/main/resources/logback-spring.xml
+++ b/zt-module-bpm/zt-module-bpm-server/src/main/resources/logback-spring.xml
@@ -73,4 +73,8 @@
         </root>
     </springProfile>
 
+    <logger name="com.zt.plat.module.bpm.dal" level="DEBUG" additivity="false">
+        <appender-ref ref="STDOUT"/>
+    </logger>
+
 </configuration>
diff --git a/zt-module-system/zt-module-system-api/src/main/java/com/zt/plat/module/system/api/esp/EspApi.java b/zt-module-system/zt-module-system-api/src/main/java/com/zt/plat/module/system/api/esp/EspApi.java
new file mode 100644
index 00000000..a7c338a5
--- /dev/null
+++ b/zt-module-system/zt-module-system-api/src/main/java/com/zt/plat/module/system/api/esp/EspApi.java
@@ -0,0 +1,94 @@
+package com.zt.plat.module.system.api.esp;
+
+import com.zt.plat.framework.common.pojo.CommonResult;
+import com.zt.plat.framework.common.util.collection.CollectionUtils;
+import com.zt.plat.module.system.api.dept.dto.*;
+import com.zt.plat.module.system.enums.ApiConstants;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.*;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+@FeignClient(name = ApiConstants.NAME)
+@Tag(name = "RPC 服务 - 部门")
+public interface EspApi {
+
+    String PREFIX = ApiConstants.PREFIX + "/dept";
+
+    // === 以下为补全的接口方法 ===
+    @PostMapping(PREFIX + "/create")
+    @Operation(summary = "新增部门")
+    CommonResult<Long> createDept(@RequestBody DeptSaveReqDTO createReqVO);
+
+    @PutMapping(PREFIX + "/update")
+    @Operation(summary = "修改部门")
+    CommonResult<Boolean> updateDept(@RequestBody DeptSaveReqDTO updateReqVO);
+
+    @DeleteMapping(PREFIX + "/delete")
+    @Operation(summary = "删除部门")
+    CommonResult<Boolean> deleteDept(@RequestParam("id") Long id);
+
+    @PostMapping(PREFIX + "/list-all")
+    @Operation(summary = "获得部门列表")
+    CommonResult<List<DeptDetailRespDTO>> getDeptList(@RequestBody DeptListReqDTO reqVO);
+
+    @GetMapping(PREFIX + "/simple-list")
+    @Operation(summary = "获得部门精简信息列表")
+    CommonResult<List<DeptSimpleRespDTO>> getSimpleDeptList();
+
+    @GetMapping(PREFIX + "/simple-company-list")
+    @Operation(summary = "获得公司精简信息列表")
+    CommonResult<List<DeptSimpleRespDTO>> getSimpleCompanyList();
+
+    @GetMapping(PREFIX + "/all-company-list")
+    @Operation(summary = "获得所有公司精简信息列表")
+    CommonResult<List<DeptSimpleRespDTO>> getAllCompanyList();
+
+    @GetMapping(PREFIX + "/get")
+    @Operation(summary = "获得部门信息")
+    @Parameter(name = "id", description = "部门编号", example = "1024", required = true)
+    CommonResult<DeptRespDTO> getDept(@RequestParam("id") Long id);
+
+    @GetMapping(PREFIX + "/list")
+    @Operation(summary = "获得部门信息数组")
+    @Parameter(name = "ids", description = "部门编号数组", example = "1,2", required = true)
+    CommonResult<List<DeptRespDTO>> getDeptList(@RequestParam("ids") Collection<Long> ids);
+
+    @GetMapping(PREFIX + "/valid")
+    @Operation(summary = "校验部门是否合法")
+    @Parameter(name = "ids", description = "部门编号数组", example = "1,2", required = true)
+    CommonResult<Boolean> validateDeptList(@RequestParam("ids") Collection<Long> ids);
+
+    /**
+     * 获得指定编号的部门 Map
+     *
+     * @param ids 部门编号数组
+     * @return 部门 Map
+     */
+    default Map<Long, DeptRespDTO> getDeptMap(Collection<Long> ids) {
+        List<DeptRespDTO> list = getDeptList(ids).getCheckedData();
+        return CollectionUtils.convertMap(list, DeptRespDTO::getId);
+    }
+
+    @GetMapping(PREFIX + "/list-child")
+    @Operation(summary = "获得指定部门的所有子部门")
+    @Parameter(name = "id", description = "部门编号", example = "1024", required = true)
+    CommonResult<List<DeptRespDTO>> getChildDeptList(@RequestParam("id") Long id);
+
+    @GetMapping(PREFIX + "/company-dept-info")
+    @Operation(summary = "获得指定用户的公司部门信息")
+    @Parameter(name = "userId", description = "用户编号", example = "1", required = true)
+    CommonResult<Set<CompanyDeptInfoRespDTO>> getCompanyDeptInfoListByUserId(@RequestParam("userId") Long userId);
+
+    // ========== 数据同步专用接口 ==========
+
+    @PostMapping(PREFIX + "/sync")
+    @Operation(summary = "同步部门")
+    CommonResult<Boolean> syncDept(@RequestBody DeptSaveReqDTO syncReqDTO);
+
+}
diff --git a/zt-module-system/zt-module-system-api/src/main/java/com/zt/plat/module/system/api/esp/dto/EspDto.java b/zt-module-system/zt-module-system-api/src/main/java/com/zt/plat/module/system/api/esp/dto/EspDto.java
new file mode 100644
index 00000000..d69e1ab2
--- /dev/null
+++ b/zt-module-system/zt-module-system-api/src/main/java/com/zt/plat/module/system/api/esp/dto/EspDto.java
@@ -0,0 +1,27 @@
+package com.zt.plat.module.system.api.esp.dto;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import java.util.List;
+
+@Schema(description = "RPC 服务 - 推送外部系统配置信息 Response DTO")
+@Data
+public class EspDto {
+
+    @Schema(description = "部门名称，模糊匹配", example = "ZT")
+    private String name;
+
+    @Schema(description = "展示状态，参见 CommonStatusEnum 枚举类", example = "1")
+    private Integer status;
+
+    @Schema(description = "是否公司", example = "false")
+    private Boolean isCompany;
+
+    @Schema(description = "是否集团", example = "false")
+    private Boolean isGroup;
+
+    @Schema(description = "部门编号集合，支持多部门查询", example = "[\"1001\", \"1002\"]")
+    private List<String> ids;
+
+
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/EspController.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/EspController.java
new file mode 100644
index 00000000..8ae5afa5
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/EspController.java
@@ -0,0 +1,117 @@
+package com.zt.plat.module.system.controller.admin.dept;
+
+import com.zt.plat.framework.common.pojo.CommonResult;
+import com.zt.plat.framework.common.pojo.PageResult;
+import com.zt.plat.framework.common.util.object.BeanUtils;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspPageReqVO;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspSaveRespVo;
+import com.zt.plat.module.system.dal.dataobject.dept.DeptDO;
+import com.zt.plat.module.system.dal.dataobject.dept.DeptPushMsgDO;
+import com.zt.plat.module.system.service.dept.DeptService;
+import com.zt.plat.module.system.service.dept.IEspService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.annotation.Resource;
+import jakarta.validation.Valid;
+import org.springframework.security.access.prepost.PreAuthorize;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.stream.Collectors;
+import static com.zt.plat.framework.common.pojo.CommonResult.success;
+
+@Tag(name = "管理后台 - 部门推送消息")
+@RestController
+@RequestMapping("/system/esp")
+@Validated
+public class EspController
+{
+
+    @Resource
+    private IEspService espService;
+    @Resource
+    private DeptService deptService;
+
+    @PostMapping("/create")
+    @Operation(summary = "创建部门推送消息")
+    @PreAuthorize("@ss.hasPermission('system:esp-external-code:create')")
+    public CommonResult<Long> create(@Valid @RequestBody EspSaveRespVo createReqVO) {
+        Long id = espService.createDeptPushMsg(createReqVO);
+        return success(id);
+    }
+
+    @PutMapping("/update")
+    @Operation(summary = "修改部门推送消息")
+    @PreAuthorize("@ss.hasPermission('system:esp-external-code:update')")
+    public CommonResult<Boolean> update(@Valid @RequestBody EspSaveRespVo updateReqVO) {
+        espService.updateDeptPushMsg(updateReqVO);
+        return success(true);
+    }
+
+    @DeleteMapping("/delete")
+    @Operation(summary = "删除部门推送消息")
+    @PreAuthorize("@ss.hasPermission('system:esp-external-code:delete')")
+    public CommonResult<Boolean> delete(@RequestParam("id") Long id) {
+        espService.deleteDeptPushMsg(id);
+        return success(true);
+    }
+
+    @GetMapping("/get")
+    @Operation(summary = "获取部门推送消息详情")
+    @PreAuthorize("@ss.hasPermission('system:esp-external-code:query')")
+    public CommonResult<EspSaveRespVo> get(@RequestParam("id") Long id) {
+        DeptPushMsgDO entity = espService.getDeptPushMsgDetails(id);
+        EspSaveRespVo respVO = BeanUtils.toBean(entity, EspSaveRespVo.class);
+        fillDeptInfo(List.of(respVO));
+        return success(respVO);
+    }
+
+    @GetMapping("/page")
+    @Operation(summary = "分页查询部门推送消息")
+    @PreAuthorize("@ss.hasPermission('system:esp-external-code:query')")
+    public CommonResult<PageResult<EspSaveRespVo>> page(@Valid EspPageReqVO reqVO) {
+        PageResult<DeptPushMsgDO> pageResult = espService.getDeptExternalCodePage(reqVO);
+        PageResult<EspSaveRespVo> result = BeanUtils.toBean(pageResult, EspSaveRespVo.class);
+        fillDeptInfo(result.getList());
+        return success(result);
+    }
+
+    @GetMapping("/list-by-dept")
+    @Operation(summary = "根据部门部门推送消息")
+    @Parameter(name = "deptId", description = "部门编号", required = true, example = "1024")
+    @PreAuthorize("@ss.hasPermission('system:esp-external-code:query')")
+    public CommonResult<List<EspSaveRespVo>> listByDept(@RequestParam("deptId") Long deptId) {
+        List<DeptPushMsgDO> list = espService.getPushMsgByDeptId(deptId);
+        List<EspSaveRespVo> respList = BeanUtils.toBean(list, EspSaveRespVo.class);
+        fillDeptInfo(respList);
+        return success(respList);
+    }
+
+
+
+    private void fillDeptInfo(List<EspSaveRespVo> list) {
+        if (list == null || list.isEmpty()) {
+            return;
+        }
+        Set<Long> deptIds = list.stream()
+                .map(EspSaveRespVo::getDeptId)
+                .collect(Collectors.toCollection(HashSet::new));
+        if (deptIds == null || deptIds.isEmpty()) {
+            return;
+        }
+        Map<Long, DeptDO> deptMap = deptService.getDeptList(deptIds).stream()
+                .collect(Collectors.toMap(DeptDO::getId, dept -> dept, (left, right) -> left));
+        list.forEach(item -> {
+            DeptDO dept = deptMap.get(item.getDeptId());
+            if (dept != null) {
+                item.setDeptName(dept.getName());
+                item.setDeptCode(dept.getCode());
+            }
+        });
+    }
+
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/vo/depexternalcode/EspPageReqVO.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/vo/depexternalcode/EspPageReqVO.java
new file mode 100644
index 00000000..10e0ab8b
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/vo/depexternalcode/EspPageReqVO.java
@@ -0,0 +1,25 @@
+package com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode;
+
+import com.zt.plat.framework.common.pojo.PageParam;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+@Schema(description = "管理后台 - 部门外部组织编码映射分页 Request VO")
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class EspPageReqVO extends PageParam {
+
+    @Schema(description = "部门编号", example = "1024")
+    private Long deptId;
+
+    @Schema(description = "外部系统标识", example = "ERP")
+    private String systemCode;
+
+    @Schema(description = "外部组织编码", example = "100200")
+    private String externalDeptCode;
+
+    @Schema(description = "状态", example = "0")
+    private Integer status;
+
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/vo/depexternalcode/EspSaveRespVo.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/vo/depexternalcode/EspSaveRespVo.java
new file mode 100644
index 00000000..859ba772
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/controller/admin/dept/vo/depexternalcode/EspSaveRespVo.java
@@ -0,0 +1,28 @@
+package com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import java.time.LocalDateTime;
+
+@Schema(description = "管理后台 - 部门外消息推送创建/修改 Request VO")
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class EspSaveRespVo extends DeptExternalCodeBaseVO {
+
+    @Schema(description = "映射编号", example = "1024")
+    private Long id;
+
+    @Schema(description = "所属部门名称", example = "技术部")
+    private String deptName;
+
+    @Schema(description = "所属部门编码", example = "DEPT_001")
+    private String deptCode;
+
+    @Schema(description = "创建时间")
+    private LocalDateTime createTime;
+
+    @Schema(description = "最后更新时间")
+    private LocalDateTime updateTime;
+
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/dal/dataobject/dept/DeptPushMsgDO.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/dal/dataobject/dept/DeptPushMsgDO.java
new file mode 100644
index 00000000..237c28bc
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/dal/dataobject/dept/DeptPushMsgDO.java
@@ -0,0 +1,58 @@
+package com.zt.plat.module.system.dal.dataobject.dept;
+
+import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.KeySequence;
+import com.baomidou.mybatisplus.annotation.TableId;
+import com.baomidou.mybatisplus.annotation.TableName;
+import com.zt.plat.framework.common.enums.CommonStatusEnum;
+import com.zt.plat.framework.tenant.core.db.TenantBaseDO;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+
+/**
+ * 部门推送消息 DO
+ */
+@TableName("system_dept_push_msg")
+@KeySequence("system_dept_push_msg_seq")
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class DeptPushMsgDO extends TenantBaseDO {
+
+    /**
+     * 主键编号
+     */
+    @TableId(type = IdType.ASSIGN_ID)
+    private Long id;
+
+    /**
+     * 本系统部门 ID
+     */
+    private Long deptId;
+
+    /**
+     * 外部系统标识
+     */
+    private String systemCode;
+
+    /**
+     * 外部系统组织编码
+     */
+    private String externalDeptCode;
+
+    /**
+     * 外部系统组织名称
+     */
+    private String externalDeptName;
+
+    /**
+     * 映射状态
+     * 枚举 {@link CommonStatusEnum}
+     */
+    private Integer status;
+
+    /**
+     * 备注
+     */
+    private String remark;
+
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/dal/mysql/dept/EspMapper.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/dal/mysql/dept/EspMapper.java
new file mode 100644
index 00000000..7f4cc147
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/dal/mysql/dept/EspMapper.java
@@ -0,0 +1,57 @@
+package com.zt.plat.module.system.dal.mysql.dept;
+
+import com.zt.plat.framework.common.pojo.PageResult;
+import com.zt.plat.framework.mybatis.core.mapper.BaseMapperX;
+import com.zt.plat.framework.mybatis.core.query.LambdaQueryWrapperX;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspPageReqVO;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspSaveRespVo;
+import com.zt.plat.module.system.dal.dataobject.dept.DeptPushMsgDO;
+import org.apache.ibatis.annotations.Mapper;
+import java.util.List;
+/**
+ * 部门推送消息接口Mapper
+ */
+@Mapper
+public interface EspMapper extends BaseMapperX<DeptPushMsgDO> {
+
+
+    /**
+     * 分页查询
+     * @param reqVO 消息推送VO
+     * @return PageResult
+     */
+    default PageResult<DeptPushMsgDO> selectPage(EspPageReqVO reqVO) {
+        return selectPage(reqVO, new LambdaQueryWrapperX<DeptPushMsgDO>()
+                .eqIfPresent(DeptPushMsgDO::getDeptId,reqVO.getDeptId())
+                .eqIfPresent(DeptPushMsgDO::getSystemCode, reqVO.getSystemCode())
+                .likeIfPresent(DeptPushMsgDO::getExternalDeptCode, reqVO.getExternalDeptCode())
+                .eqIfPresent(DeptPushMsgDO::getStatus, reqVO.getStatus())
+                .orderByDesc(DeptPushMsgDO::getId));
+    }
+
+
+    default DeptPushMsgDO selectBySystemCodeAndDeptId(String systemCode, Long deptId) {
+        return selectOne(new LambdaQueryWrapperX<DeptPushMsgDO>()
+                .eq(DeptPushMsgDO::getSystemCode, systemCode)
+                .eq(DeptPushMsgDO::getDeptId, deptId));
+    }
+
+    default DeptPushMsgDO selectBySystemCodeAndExternalCode(String systemCode, String externalDeptCode) {
+        return selectOne(new LambdaQueryWrapperX<DeptPushMsgDO>()
+                .eq(DeptPushMsgDO::getSystemCode, systemCode)
+                .eq(DeptPushMsgDO::getExternalDeptCode, externalDeptCode));
+    }
+
+    default List<DeptPushMsgDO> selectListByDeptId(Long deptId) {
+        return selectList(DeptPushMsgDO::getDeptId, deptId);
+    }
+
+    default int deleteByDeptId(Long deptId) {
+        return delete(DeptPushMsgDO::getDeptId, deptId);
+    }
+
+    default List<DeptPushMsgDO> selectListBySystemCode(String systemCode) {
+        return selectList(DeptPushMsgDO::getSystemCode, systemCode);
+    }
+
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/dept/EspServiceImpl.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/dept/EspServiceImpl.java
new file mode 100644
index 00000000..bd746bfb
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/dept/EspServiceImpl.java
@@ -0,0 +1,256 @@
+package com.zt.plat.module.system.service.dept;
+
+import cn.hutool.core.util.StrUtil;
+import com.zt.plat.framework.common.enums.CommonStatusEnum;
+import com.zt.plat.framework.common.pojo.PageResult;
+import com.zt.plat.framework.common.util.object.BeanUtils;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspPageReqVO;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspSaveRespVo;
+import com.zt.plat.module.system.dal.dataobject.dept.DeptDO;
+import com.zt.plat.module.system.dal.dataobject.dept.DeptPushMsgDO;
+import com.zt.plat.module.system.dal.mysql.dept.DeptMapper;
+import com.zt.plat.module.system.dal.mysql.dept.EspMapper;
+import com.zt.plat.module.system.dal.redis.RedisKeyConstants;
+import jakarta.annotation.Resource;
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.annotation.CacheEvict;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Service;
+import org.springframework.validation.annotation.Validated;
+import java.util.List;
+import java.util.Objects;
+import static com.zt.plat.framework.common.exception.util.ServiceExceptionUtil.exception;
+import static com.zt.plat.module.system.enums.ErrorCodeConstants.*;
+
+/**
+ * 部门推送消息接口ServiceImpl实现类
+ */
+@Service
+@Validated
+public class EspServiceImpl implements IEspService {
+
+    @Resource
+    private EspMapper espMapper;
+    @Resource
+    private DeptMapper deptMapper;
+    @Resource
+    private CacheManager cacheManager;
+
+    @Override
+    @CacheEvict(cacheNames = RedisKeyConstants.DEPT_EXTERNAL_CODE_LIST, key = "#createReqVO.deptId", beforeInvocation = false)
+    public Long createDeptPushMsg(EspSaveRespVo createReqVO) {
+
+        //请求校验
+        normalizeRequest(createReqVO);
+        //冲突禁用-映射
+        disableActiveMappingIfConflict(createReqVO.getDeptId(), createReqVO.getSystemCode(), createReqVO.getExternalDeptCode());
+        validateForCreateOrUpdate(null, createReqVO.getDeptId(), createReqVO.getSystemCode(),
+                createReqVO.getExternalDeptCode());
+
+        DeptPushMsgDO entity = BeanUtils.toBean(createReqVO, DeptPushMsgDO.class);
+        if (entity.getStatus() == null) {
+            entity.setStatus(CommonStatusEnum.ENABLE.getStatus());
+        }
+        espMapper.insert(entity);
+        return entity.getId();
+    }
+
+    @Override
+    public void updateDeptPushMsg(EspSaveRespVo updateReqVO) {
+        normalizeRequest(updateReqVO);
+        DeptPushMsgDO exists = validateExists(updateReqVO.getId());
+        disableActiveMappingIfConflict(updateReqVO.getDeptId(), updateReqVO.getSystemCode(), updateReqVO.getExternalDeptCode());
+        validateForCreateOrUpdate(updateReqVO.getId(), updateReqVO.getDeptId(), updateReqVO.getSystemCode(),
+                updateReqVO.getExternalDeptCode());
+
+        DeptPushMsgDO updateObj = BeanUtils.toBean(updateReqVO, DeptPushMsgDO.class);
+        // 保持原有的状态默认值逻辑
+        if (updateObj.getStatus() == null) {
+            updateObj.setStatus(exists.getStatus() == null ? CommonStatusEnum.ENABLE.getStatus() : exists.getStatus());
+        }
+        espMapper.updateById(updateObj);
+        evictCacheSafely(exists.getDeptId());
+        evictCacheSafely(updateObj.getDeptId());
+    }
+
+    @Override
+    public void deleteDeptPushMsg(Long id) {
+        DeptPushMsgDO exists = validateExists(id);
+        espMapper.deleteById(id);
+        evictCacheSafely(exists.getDeptId());
+    }
+
+    @Override
+    public DeptPushMsgDO getDeptPushMsgDetails(Long id) {
+        return espMapper.selectById(id);
+    }
+
+    @Override
+    public PageResult<DeptPushMsgDO> getDeptExternalCodePage(EspPageReqVO reqVO) {
+
+        return espMapper.selectPage(reqVO);
+    }
+
+    @Override
+    @Cacheable(cacheNames = RedisKeyConstants.DEPT_EXTERNAL_CODE_LIST, key = "#deptId")
+    public List<DeptPushMsgDO> getPushMsgByDeptId(Long deptId) {
+        return espMapper.selectListByDeptId(deptId);
+    }
+
+/*    @Override
+    public DeptExternalCodeDO getBySystemCodeAndExternalCode(String systemCode, String externalDeptCode) {
+        if (StrUtil.hasEmpty(systemCode, externalDeptCode)) {
+            return null;
+        }
+        return espMapper.selectBySystemCodeAndExternalCode(systemCode.trim(), externalDeptCode.trim());
+    }*/
+
+/*    @Override
+    public DeptExternalCodeDO getBySystemCodeAndDeptId(String systemCode, Long deptId) {
+        if (StrUtil.isBlank(systemCode) || deptId == null) {
+            return null;
+        }
+        return espMapper.selectBySystemCodeAndDeptId(systemCode.trim(), deptId);
+    }*/
+
+/*    @Override
+    public Long getDeptPushMsgDetails(Long deptId, String systemCode, String externalDeptCode,
+                                             String externalDeptName, Integer status) {
+
+        if (StrUtil.hasEmpty(systemCode, externalDeptCode) || deptId == null) {
+            return null;
+        }
+        String normalizedSystemCode = systemCode.trim();
+        String normalizedExternalCode = externalDeptCode.trim();
+        String normalizedExternalName = StrUtil.blankToDefault(StrUtil.trimToNull(externalDeptName), null);
+
+        disableActiveMappingIfConflict(deptId, normalizedSystemCode, normalizedExternalCode);
+
+        // 如果存在则更新，否则创建
+        DeptExternalCodeDO exists = espMapper.selectBySystemCodeAndDeptId(normalizedSystemCode, deptId);
+        if (exists != null) {
+            DeptExternalCodeSaveReqVO updateReqVO = new DeptExternalCodeSaveReqVO();
+            updateReqVO.setId(exists.getId());
+            updateReqVO.setDeptId(deptId);
+            updateReqVO.setSystemCode(normalizedSystemCode);
+            updateReqVO.setExternalDeptCode(normalizedExternalCode);
+            updateReqVO.setExternalDeptName(normalizedExternalName);
+            updateReqVO.setStatus(status == null ? exists.getStatus() : status);
+
+            //TODO
+            //getDeptPushMsgDetails(updateReqVO);
+            return exists.getId();
+        }
+
+        DeptExternalCodeSaveReqVO createReqVO = new DeptExternalCodeSaveReqVO();
+        createReqVO.setDeptId(deptId);
+        createReqVO.setSystemCode(normalizedSystemCode);
+        createReqVO.setExternalDeptCode(normalizedExternalCode);
+        createReqVO.setExternalDeptName(normalizedExternalName);
+        createReqVO.setStatus(status == null ? CommonStatusEnum.ENABLE.getStatus() : status);
+        return getDeptPushMsgDetails(createReqVO);
+    }*/
+
+/*    @Override
+    public void deleteDeptExternalCodesByDeptId(Long deptId) {
+        if (deptId == null) {
+            return;
+        }
+        espMapper.deleteByDeptId(deptId);
+        evictCacheSafely(deptId);
+    }*/
+
+    private DeptPushMsgDO validateExists(Long id) {
+        if (id == null) {
+            throw exception(DEPT_EXTERNAL_RELATION_NOT_EXISTS);
+        }
+        DeptPushMsgDO entity = espMapper.selectById(id);
+        if (entity == null) {
+            throw exception(DEPT_EXTERNAL_RELATION_NOT_EXISTS);
+        }
+        return entity;
+    }
+
+    private void validateForCreateOrUpdate(Long id, Long deptId, String systemCode, String externalDeptCode) {
+
+        // 校验部门存在
+        DeptDO dept = deptMapper.selectById(deptId);
+        if (dept == null) {
+            throw exception(DEPT_NOT_FOUND);
+        }
+        String normalizedSystemCode = StrUtil.blankToDefault(systemCode, null);
+        String normalizedExternalCode = StrUtil.blankToDefault(externalDeptCode, null);
+
+        // 校验同一系统下部门唯一
+        if (StrUtil.isNotBlank(normalizedSystemCode)) {
+            DeptPushMsgDO sameDept = espMapper
+                    .selectBySystemCodeAndDeptId(normalizedSystemCode, deptId);
+            if (sameDept != null && (id == null || !sameDept.getId().equals(id))) {
+                throw exception(DEPT_EXTERNAL_RELATION_EXISTS, normalizedSystemCode);
+            }
+        }
+        // 校验同一系统下外部编码唯一
+        if (StrUtil.isNotBlank(normalizedSystemCode) && StrUtil.isNotBlank(normalizedExternalCode)) {
+            DeptPushMsgDO sameExternal = espMapper
+                    .selectBySystemCodeAndExternalCode(normalizedSystemCode, normalizedExternalCode);
+            if (sameExternal != null && (id == null || !sameExternal.getId().equals(id))) {
+                boolean sameDept = Objects.equals(deptId, sameExternal.getDeptId());
+                boolean activeConflict = !sameDept && CommonStatusEnum.isEnable(sameExternal.getStatus());
+                if (activeConflict) {
+                    throw exception(DEPT_EXTERNAL_CODE_DUPLICATE, normalizedSystemCode, normalizedExternalCode);
+                }
+            }
+        }
+    }
+
+    private void normalizeRequest(EspSaveRespVo reqVO) {
+        if (reqVO == null) {
+            return;
+        }
+        if (StrUtil.isNotBlank(reqVO.getSystemCode())) {
+            reqVO.setSystemCode(reqVO.getSystemCode().trim());
+        }
+        if (StrUtil.isNotBlank(reqVO.getExternalDeptCode())) {
+            reqVO.setExternalDeptCode(reqVO.getExternalDeptCode().trim());
+        }
+        if (reqVO.getStatus() == null) {
+            reqVO.setStatus(CommonStatusEnum.ENABLE.getStatus());
+        }
+    }
+
+    private void disableActiveMappingIfConflict(Long targetDeptId, String systemCode, String externalDeptCode) {
+        String normalizedSystem = StrUtil.trimToNull(systemCode);
+        String normalizedExternal = StrUtil.trimToNull(externalDeptCode);
+        if (StrUtil.hasEmpty(normalizedSystem, normalizedExternal) || targetDeptId == null) {
+            return;
+        }
+        DeptPushMsgDO existing = espMapper.selectBySystemCodeAndExternalCode(normalizedSystem, normalizedExternal);
+        if (existing == null) {
+            return;
+        }
+        if (Objects.equals(existing.getDeptId(), targetDeptId)) {
+            return;
+        }
+        if (CommonStatusEnum.isEnable(existing.getStatus())) {
+            DeptPushMsgDO update = new DeptPushMsgDO();
+            update.setId(existing.getId());
+            update.setStatus(CommonStatusEnum.DISABLE.getStatus());
+            espMapper.updateById(update);
+            evictCacheSafely(existing.getDeptId());
+        }
+    }
+
+    private void evictCacheSafely(Long deptId) {
+
+        if (deptId == null || cacheManager == null) {
+            return;
+        }
+        try {
+            if (cacheManager.getCache(RedisKeyConstants.DEPT_EXTERNAL_CODE_LIST) != null) {
+                cacheManager.getCache(RedisKeyConstants.DEPT_EXTERNAL_CODE_LIST).evict(deptId);
+            }
+        } catch (Exception ignore) {
+            // 缓存失效失败不影响主流程
+        }
+    }
+}
diff --git a/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/dept/IEspService.java b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/dept/IEspService.java
new file mode 100644
index 00000000..97c83454
--- /dev/null
+++ b/zt-module-system/zt-module-system-server/src/main/java/com/zt/plat/module/system/service/dept/IEspService.java
@@ -0,0 +1,79 @@
+package com.zt.plat.module.system.service.dept;
+
+import com.zt.plat.framework.common.pojo.PageResult;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspPageReqVO;
+import com.zt.plat.module.system.controller.admin.dept.vo.depexternalcode.EspSaveRespVo;
+import com.zt.plat.module.system.dal.dataobject.dept.DeptPushMsgDO;
+
+import java.util.List;
+
+/**
+ * 部门推送消息 Service 接口
+ */
+public interface IEspService {
+
+    /**
+     * 创建映射关系
+     * @param createReqVO 创建请求
+     * @return 新增记录编号
+     */
+    Long createDeptPushMsg(EspSaveRespVo createReqVO);
+
+    /**
+     * 更新映射关系
+     * @param updateReqVO 更新请求
+     */
+    void updateDeptPushMsg(EspSaveRespVo updateReqVO);
+
+    /**
+     * 删除映射关系
+     *
+     * @param id 记录编号
+     */
+    void deleteDeptPushMsg(Long id);
+
+    /**
+     * 获取映射详情
+     */
+    DeptPushMsgDO getDeptPushMsgDetails(Long id);
+
+    /**
+     * 分页查询映射
+     */
+    PageResult<DeptPushMsgDO> getDeptExternalCodePage(EspPageReqVO reqVO);
+
+    /**
+     * 根据部门推送消息
+     */
+    List<DeptPushMsgDO> getPushMsgByDeptId(Long deptId);
+
+    /**
+     * 根据部门与外部系统保存/更新映射（存在则更新，不存在则创建）
+     * @param deptId           本系统部门 ID
+     * @param systemCode       外部系统标识
+     * @param externalDeptCode 外部系统组织编码
+     * @param externalDeptName 外部系统组织名称（可选）
+     * @param status           状态，默认启用
+     * @return 映射记录 ID
+     */
+ /*   Long getDeptPushMsgDetails(Long deptId, String systemCode, String externalDeptCode, String externalDeptName,
+                                      Integer status);*/
+
+    /**
+     * 根据部门删除全部外部编码映射
+     *
+     * @param deptId 部门编号
+     */
+    //void deleteDeptExternalCodesByDeptId(Long deptId);
+
+    /**
+     * 根据外部系统与外部组织编码查询映射
+     */
+    //DeptExternalCodeDO getBySystemCodeAndExternalCode(String systemCode, String externalDeptCode);
+
+    /**
+     * 根据外部系统与部门编号查询映射
+     */
+    //DeptExternalCodeDO getBySystemCodeAndDeptId(String systemCode, Long deptId);
+
+}