初始化项目提交，并添加 flowable 7 的 dm 兼容

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/datasource/config/YudaoDataSourceAutoConfiguration.java

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+package cn.iocoder.yudao.framework.datasource.config;
+
+import cn.iocoder.yudao.framework.datasource.core.filter.DruidAdRemoveFilter;
+import com.alibaba.druid.spring.boot3.autoconfigure.properties.DruidStatProperties;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.boot.web.servlet.FilterRegistrationBean;
+import org.springframework.context.annotation.Bean;
+import org.springframework.transaction.annotation.EnableTransactionManagement;
+
+/**
+ * 数据库配置类
+ *
+ * @author 芋道源码
+ */
+@AutoConfiguration
+@EnableTransactionManagement(proxyTargetClass = true) // 启动事务管理
+@EnableConfigurationProperties(DruidStatProperties.class)
+public class YudaoDataSourceAutoConfiguration {
+
+    /**
+     * 创建 DruidAdRemoveFilter 过滤器，过滤 common.js 的广告
+     */
+    @Bean
+    @ConditionalOnProperty(name = "spring.datasource.druid.stat-view-servlet.enabled", havingValue = "true")
+    public FilterRegistrationBean<DruidAdRemoveFilter> druidAdRemoveFilterFilter(DruidStatProperties properties) {
+        // 获取 druid web 监控页面的参数
+        DruidStatProperties.StatViewServlet config = properties.getStatViewServlet();
+        // 提取 common.js 的配置路径
+        String pattern = config.getUrlPattern() != null ? config.getUrlPattern() : "/druid/*";
+        String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");
+        // 创建 DruidAdRemoveFilter Bean
+        FilterRegistrationBean<DruidAdRemoveFilter> registrationBean = new FilterRegistrationBean<>();
+        registrationBean.setFilter(new DruidAdRemoveFilter());
+        registrationBean.addUrlPatterns(commonJsPattern);
+        return registrationBean;
+    }
+
+}

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/datasource/core/enums/DataSourceEnum.java

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+package cn.iocoder.yudao.framework.datasource.core.enums;
+
+/**
+ * 对应于多数据源中不同数据源配置
+ *
+ * 通过在方法上，使用 {@link com.baomidou.dynamic.datasource.annotation.DS} 注解，设置使用的数据源。
+ * 注意，默认是 {@link #MASTER} 数据源
+ *
+ * 对应官方文档为 http://dynamic-datasource.com/guide/customize/Annotation.html
+ */
+public interface DataSourceEnum {
+
+    /**
+     * 主库，推荐使用 {@link com.baomidou.dynamic.datasource.annotation.Master} 注解
+     */
+    String MASTER = "master";
+    /**
+     * 从库，推荐使用 {@link com.baomidou.dynamic.datasource.annotation.Slave} 注解
+     */
+    String SLAVE = "slave";
+
+}

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/datasource/core/filter/DruidAdRemoveFilter.java

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+package cn.iocoder.yudao.framework.datasource.core.filter;
+
+import com.alibaba.druid.util.Utils;
+import org.springframework.web.filter.OncePerRequestFilter;
+
+import jakarta.servlet.FilterChain;
+import jakarta.servlet.ServletException;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+/**
+ * Druid 底部广告过滤器
+ *
+ * @author 芋道源码
+ */
+public class DruidAdRemoveFilter extends OncePerRequestFilter {
+
+    /**
+     * common.js 的路径
+     */
+    private static final String COMMON_JS_ILE_PATH = "support/http/resources/js/common.js";
+
+    @Override
+    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
+            throws ServletException, IOException {
+        chain.doFilter(request, response);
+        // 重置缓冲区，响应头不会被重置
+        response.resetBuffer();
+        // 获取 common.js
+        String text = Utils.readFromResource(COMMON_JS_ILE_PATH);
+        // 正则替换 banner, 除去底部的广告信息
+        text = text.replaceAll("<a.*?banner\"></a><br/>", "");
+        text = text.replaceAll("powered.*?shrek.wang</a>", "");
+        response.getWriter().write(text);
+    }
+
+}

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/datasource/package-info.java

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+/**
+ * 数据库连接池，采用 Druid
+ * 多数据源，采用爆米花
+ */
+package cn.iocoder.yudao.framework.datasource;

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/config/YudaoMybatisAutoConfiguration.java

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+package cn.iocoder.yudao.framework.mybatis.config;
+
+import cn.hutool.core.util.StrUtil;
+import cn.iocoder.yudao.framework.mybatis.core.handler.DefaultDBFieldHandler;
+import com.baomidou.mybatisplus.annotation.DbType;
+import com.baomidou.mybatisplus.autoconfigure.MybatisPlusAutoConfiguration;
+import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
+import com.baomidou.mybatisplus.core.incrementer.IKeyGenerator;
+import com.baomidou.mybatisplus.extension.incrementer.*;
+import com.baomidou.mybatisplus.extension.parser.JsqlParserGlobal;
+import com.baomidou.mybatisplus.extension.parser.cache.JdkSerialCaffeineJsqlParseCache;
+import com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor;
+import com.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor;
+import org.apache.ibatis.annotations.Mapper;
+import org.mybatis.spring.annotation.MapperScan;
+import org.springframework.boot.autoconfigure.AutoConfiguration;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.context.annotation.Bean;
+import org.springframework.core.env.ConfigurableEnvironment;
+
+import java.util.concurrent.TimeUnit;
+
+/**
+ * MyBaits 配置类
+ *
+ * @author 芋道源码
+ */
+@AutoConfiguration(before = MybatisPlusAutoConfiguration.class) // 目的：先于 MyBatis Plus 自动配置，避免 @MapperScan 可能扫描不到 Mapper 打印 warn 日志
+@MapperScan(value = "${yudao.info.base-package}", annotationClass = Mapper.class,
+        lazyInitialization = "${mybatis.lazy-initialization:false}") // Mapper 懒加载，目前仅用于单元测试
+public class YudaoMybatisAutoConfiguration {
+
+    static {
+        // 动态 SQL 智能优化支持本地缓存加速解析，更完善的租户复杂 XML 动态 SQL 支持，静态注入缓存
+        JsqlParserGlobal.setJsqlParseCache(new JdkSerialCaffeineJsqlParseCache(
+                (cache) -> cache.maximumSize(1024)
+                        .expireAfterWrite(5, TimeUnit.SECONDS))
+        );
+    }
+
+    @Bean
+    public MybatisPlusInterceptor mybatisPlusInterceptor() {
+        MybatisPlusInterceptor mybatisPlusInterceptor = new MybatisPlusInterceptor();
+        mybatisPlusInterceptor.addInnerInterceptor(new PaginationInnerInterceptor()); // 分页插件
+        return mybatisPlusInterceptor;
+    }
+
+    @Bean
+    public MetaObjectHandler defaultMetaObjectHandler() {
+        return new DefaultDBFieldHandler(); // 自动填充参数类
+    }
+
+    @Bean
+    @ConditionalOnProperty(prefix = "mybatis-plus.global-config.db-config", name = "id-type", havingValue = "INPUT")
+    public IKeyGenerator keyGenerator(ConfigurableEnvironment environment) {
+        DbType dbType = IdTypeEnvironmentPostProcessor.getDbType(environment);
+        if (dbType != null) {
+            switch (dbType) {
+                case POSTGRE_SQL:
+                    return new PostgreKeyGenerator();
+                case ORACLE:
+                case ORACLE_12C:
+                    return new OracleKeyGenerator();
+                case H2:
+                    return new H2KeyGenerator();
+                case KINGBASE_ES:
+                    return new KingbaseKeyGenerator();
+                case DM:
+                    return new DmKeyGenerator();
+            }
+        }
+        // 找不到合适的 IKeyGenerator 实现类
+        throw new IllegalArgumentException(StrUtil.format("DbType{} 找不到合适的 IKeyGenerator 实现类", dbType));
+    }
+
+}

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/dataobject/BaseDO.java

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+package cn.iocoder.yudao.framework.mybatis.core.dataobject;
+
+import com.baomidou.mybatisplus.annotation.FieldFill;
+import com.baomidou.mybatisplus.annotation.TableField;
+import com.baomidou.mybatisplus.annotation.TableLogic;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fhs.core.trans.vo.TransPojo;
+import lombok.Data;
+import org.apache.ibatis.type.JdbcType;
+
+import java.io.Serializable;
+import java.time.LocalDateTime;
+
+/**
+ * 基础实体对象
+ *
+ * 为什么实现 {@link TransPojo} 接口？
+ * 因为使用 Easy-Trans TransType.SIMPLE 模式，集成 MyBatis Plus 查询
+ *
+ * @author 芋道源码
+ */
+@Data
+@JsonIgnoreProperties(value = "transMap") // 由于 Easy-Trans 会添加 transMap 属性，避免 Jackson 在 Spring Cache 反序列化报错
+public abstract class BaseDO implements Serializable, TransPojo {
+
+    /**
+     * 创建时间
+     */
+    @TableField(fill = FieldFill.INSERT)
+    private LocalDateTime createTime;
+    /**
+     * 最后更新时间
+     */
+    @TableField(fill = FieldFill.INSERT_UPDATE)
+    private LocalDateTime updateTime;
+    /**
+     * 创建者，目前使用 SysUser 的 id 编号
+     *
+     * 使用 String 类型的原因是，未来可能会存在非数值的情况，留好拓展性。
+     */
+    @TableField(fill = FieldFill.INSERT, jdbcType = JdbcType.VARCHAR)
+    private String creator;
+    /**
+     * 更新者，目前使用 SysUser 的 id 编号
+     *
+     * 使用 String 类型的原因是，未来可能会存在非数值的情况，留好拓展性。
+     */
+    @TableField(fill = FieldFill.INSERT_UPDATE, jdbcType = JdbcType.VARCHAR)
+    private String updater;
+    /**
+     * 是否删除
+     */
+    @TableLogic
+    private Boolean deleted;
+
+    /**
+     * 把 creator、createTime、updateTime、updater 都清空，避免前端直接传递 creator 之类的字段，直接就被更新了
+     */
+    public void clean(){
+        this.creator = null;
+        this.createTime = null;
+        this.updater = null;
+        this.updateTime = null;
+    }
+
+}

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/enums/DbTypeEnum.java

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+package cn.iocoder.yudao.framework.mybatis.core.enums;
+
+import cn.hutool.core.util.StrUtil;
+import com.baomidou.mybatisplus.annotation.DbType;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+import java.util.Map;
+import java.util.Optional;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+/**
+ * 针对 MyBatis Plus 的 {@link DbType} 增强，补充更多信息
+ */
+@Getter
+@AllArgsConstructor
+public enum DbTypeEnum {
+
+    /**
+     * H2
+     *
+     * 注意：H2 不支持 find_in_set 函数
+     */
+    H2(DbType.H2, "H2", ""),
+
+    /**
+     * MySQL
+     */
+    MY_SQL(DbType.MYSQL, "MySQL", "FIND_IN_SET('#{value}', #{column}) <> 0"),
+
+    /**
+     * Oracle
+     */
+    ORACLE(DbType.ORACLE, "Oracle", "FIND_IN_SET('#{value}', #{column}) <> 0"),
+
+    /**
+     * PostgreSQL
+     *
+     * 华为 openGauss 使用 ProductName 与 PostgreSQL 相同
+     */
+    POSTGRE_SQL(DbType.POSTGRE_SQL,"PostgreSQL", "POSITION('#{value}' IN #{column}) <> 0"),
+
+    /**
+     * SQL Server
+     */
+    SQL_SERVER(DbType.SQL_SERVER, "Microsoft SQL Server", "CHARINDEX(',' + #{value} + ',', ',' + #{column} + ',') <> 0"),
+    /**
+     * SQL Server 2005
+     */
+    SQL_SERVER2005(DbType.SQL_SERVER2005, "Microsoft SQL Server 2005", "CHARINDEX(',' + #{value} + ',', ',' + #{column} + ',') <> 0"),
+
+    /**
+     * 达梦
+     */
+    DM(DbType.DM, "DM DBMS", "FIND_IN_SET('#{value}', #{column}) <> 0"),
+
+    /**
+     * 人大金仓
+     */
+    KINGBASE_ES(DbType.KINGBASE_ES, "KingbaseES", "POSITION('#{value}' IN #{column}) <> 0"),
+    ;
+
+    public static final Map<String, DbTypeEnum> MAP_BY_NAME = Arrays.stream(values())
+            .collect(Collectors.toMap(DbTypeEnum::getProductName, Function.identity()));
+
+    public static final Map<DbType, DbTypeEnum> MAP_BY_MP = Arrays.stream(values())
+            .collect(Collectors.toMap(DbTypeEnum::getMpDbType, Function.identity()));
+
+    /**
+     * MyBatis Plus 类型
+     */
+    private final DbType mpDbType;
+    /**
+     * 数据库产品名
+     */
+    private final String productName;
+    /**
+     * SQL FIND_IN_SET 模板
+     */
+    private final String findInSetTemplate;
+
+    public static DbType find(String databaseProductName) {
+        if (StrUtil.isBlank(databaseProductName)) {
+            return null;
+        }
+        return MAP_BY_NAME.get(databaseProductName).getMpDbType();
+    }
+
+    public static String getFindInSetTemplate(DbType dbType) {
+        return Optional.of(MAP_BY_MP.get(dbType).getFindInSetTemplate())
+                .orElseThrow(() -> new IllegalArgumentException("FIND_IN_SET not supported"));
+    }
+}

yudao-framework/yudao-spring-boot-starter-mybatis/src/main/java/cn/iocoder/yudao/framework/mybatis/core/handler/DefaultDBFieldHandler.java

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+package cn.iocoder.yudao.framework.mybatis.core.handler;
+
+import cn.iocoder.yudao.framework.mybatis.core.dataobject.BaseDO;
+import cn.iocoder.yudao.framework.web.core.util.WebFrameworkUtils;
+import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
+import org.apache.ibatis.reflection.MetaObject;
+
+import java.time.LocalDateTime;
+import java.util.Objects;
+
+/**
+ * 通用参数填充实现类
+ *
+ * 如果没有显式的对通用参数进行赋值，这里会对通用参数进行填充、赋值
+ *
+ * @author hexiaowu
+ */
+public class DefaultDBFieldHandler implements MetaObjectHandler {
+
+    @Override
+    public void insertFill(MetaObject metaObject) {
+        if (Objects.nonNull(metaObject) && metaObject.getOriginalObject() instanceof BaseDO) {
+            BaseDO baseDO = (BaseDO) metaObject.getOriginalObject();
+
+            LocalDateTime current = LocalDateTime.now();
+            // 创建时间为空，则以当前时间为插入时间
+            if (Objects.isNull(baseDO.getCreateTime())) {
+                baseDO.setCreateTime(current);
+            }
+            // 更新时间为空，则以当前时间为更新时间
+            if (Objects.isNull(baseDO.getUpdateTime())) {
+                baseDO.setUpdateTime(current);
+            }
+
+            Long userId = WebFrameworkUtils.getLoginUserId();
+            // 当前登录用户不为空，创建人为空，则当前登录用户为创建人
+            if (Objects.nonNull(userId) && Objects.isNull(baseDO.getCreator())) {
+                baseDO.setCreator(userId.toString());
+            }
+            // 当前登录用户不为空，更新人为空，则当前登录用户为更新人
+            if (Objects.nonNull(userId) && Objects.isNull(baseDO.getUpdater())) {
+                baseDO.setUpdater(userId.toString());
+            }
+        }
+    }
+
+    @Override
+    public void updateFill(MetaObject metaObject) {
+        // 更新时间为空，则以当前时间为更新时间
+        Object modifyTime = getFieldValByName("updateTime", metaObject);
+        if (Objects.isNull(modifyTime)) {
+            setFieldValByName("updateTime", LocalDateTime.now(), metaObject);
+        }
+
+        // 当前登录用户不为空，更新人为空，则当前登录用户为更新人
+        Object modifier = getFieldValByName("updater", metaObject);
+        Long userId = WebFrameworkUtils.getLoginUserId();
+        if (Objects.nonNull(userId) && Objects.isNull(modifier)) {
+            setFieldValByName("updater", userId.toString(), metaObject);
+        }
+    }
+}