diff --git a/zt-module-databus/zt-module-databus-server/src/main/java/com/zt/plat/module/databus/framework/integration/gateway/config/GatewayWebClientConfiguration.java b/zt-module-databus/zt-module-databus-server/src/main/java/com/zt/plat/module/databus/framework/integration/gateway/config/GatewayWebClientConfiguration.java
index 9a32813f..2945f5ed 100644
--- a/zt-module-databus/zt-module-databus-server/src/main/java/com/zt/plat/module/databus/framework/integration/gateway/config/GatewayWebClientConfiguration.java
+++ b/zt-module-databus/zt-module-databus-server/src/main/java/com/zt/plat/module/databus/framework/integration/gateway/config/GatewayWebClientConfiguration.java
@@ -12,7 +12,7 @@ public class GatewayWebClientConfiguration {
     private final int maxInMemorySize;
 
     public GatewayWebClientConfiguration(
-            @Value("${databus.gateway.web-client.max-in-memory-size:2097152}") int maxInMemorySize) {
+            @Value("${databus.gateway.web-client.max-in-memory-size:20971520}") int maxInMemorySize) {
         this.maxInMemorySize = maxInMemorySize;
     }
 
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/FileController.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/FileController.java
index a97fd947..101a2654 100644
--- a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/FileController.java
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/FileController.java
@@ -76,6 +76,13 @@ public class FileController {
         return success(fileWhitReturn);
     }
 
+    @PostMapping("/upload-base64-with-return")
+    @Operation(summary = "上传文件（Base64编码）携带返回实体", description = "支持通过Base64编码上传文件内容，并返回完整文件信息")
+    public CommonResult<FileRespVO> uploadFileBase64WithReturn(@Valid @RequestBody FileUploadBase64ReqVO uploadReqVO) throws Exception {
+        FileRespVO fileRespVO = fileService.createFileFromBase64WithReturn(uploadReqVO);
+        return success(fileRespVO);
+    }
+
     @GetMapping("/presigned-url")
     @Operation(summary = "获取文件预签名地址", description = "模式二：前端上传文件：用于前端直接上传七牛、阿里云 OSS 等文件存储器")
     @Parameters({
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/vo/file/FileUploadBase64ReqVO.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/vo/file/FileUploadBase64ReqVO.java
new file mode 100644
index 00000000..2dc4a667
--- /dev/null
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/controller/admin/file/vo/file/FileUploadBase64ReqVO.java
@@ -0,0 +1,28 @@
+package com.zt.plat.module.infra.controller.admin.file.vo.file;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotBlank;
+import lombok.Data;
+
+/**
+ * @author chenbowen
+ */
+@Schema(description = "管理后台 - 上传文件（Base64编码） Request VO")
+@Data
+public class FileUploadBase64ReqVO {
+
+    @Schema(description = "文件内容（Base64编码）", requiredMode = Schema.RequiredMode.REQUIRED)
+    @NotBlank(message = "文件内容不能为空")
+    private String base64Content;
+
+    @Schema(description = "文件名称", requiredMode = Schema.RequiredMode.REQUIRED, example = "example.pdf")
+    @NotBlank(message = "文件名称不能为空")
+    private String fileName;
+
+    @Schema(description = "文件目录", example = "XXX/YYY")
+    private String directory;
+
+    @Schema(description = "是否加密", example = "false")
+    private Boolean encrypt = false;
+
+}
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileService.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileService.java
index 982820d1..96e6b3d4 100644
--- a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileService.java
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileService.java
@@ -5,6 +5,7 @@ import com.zt.plat.module.infra.controller.admin.file.vo.file.FileCreateReqVO;
 import com.zt.plat.module.infra.controller.admin.file.vo.file.FilePageReqVO;
 import com.zt.plat.module.infra.controller.admin.file.vo.file.FilePresignedUrlRespVO;
 import com.zt.plat.module.infra.controller.admin.file.vo.file.FileRespVO;
+import com.zt.plat.module.infra.controller.admin.file.vo.file.FileUploadBase64ReqVO;
 import com.zt.plat.module.infra.dal.dataobject.file.FileDO;
 import jakarta.validation.constraints.NotEmpty;
 import lombok.SneakyThrows;
@@ -41,6 +42,14 @@ public interface FileService {
     @SneakyThrows
     FileRespVO createFileWhitReturn(byte[] content, String name, String directory, String type, Boolean encrypt);
 
+    /**
+     * 通过 Base64 编码内容保存文件，并返回完整的文件信息
+     *
+     * @param uploadReqVO Base64上传请求VO
+     * @return 文件信息
+     */
+    FileRespVO createFileFromBase64WithReturn(FileUploadBase64ReqVO uploadReqVO) throws Exception;
+
     /**
      * 生成文件预签名地址信息
      *
diff --git a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileServiceImpl.java b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileServiceImpl.java
index 8a699ce1..2c62ec69 100644
--- a/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileServiceImpl.java
+++ b/zt-module-infra/zt-module-infra-server/src/main/java/com/zt/plat/module/infra/service/file/FileServiceImpl.java
@@ -12,6 +12,7 @@ import com.zt.plat.module.infra.controller.admin.file.vo.file.FileCreateReqVO;
 import com.zt.plat.module.infra.controller.admin.file.vo.file.FilePageReqVO;
 import com.zt.plat.module.infra.controller.admin.file.vo.file.FilePresignedUrlRespVO;
 import com.zt.plat.module.infra.controller.admin.file.vo.file.FileRespVO;
+import com.zt.plat.module.infra.controller.admin.file.vo.file.FileUploadBase64ReqVO;
 import com.zt.plat.module.infra.dal.dataobject.file.FileDO;
 import com.zt.plat.module.infra.dal.mysql.file.FileMapper;
 import com.zt.plat.module.infra.dal.redis.RedisKeyConstants;
@@ -133,6 +134,38 @@ public class FileServiceImpl implements FileService {
         return BeanUtils.toBean(entity, FileRespVO.class);
     }
 
+    @Override
+    public FileRespVO createFileFromBase64WithReturn(FileUploadBase64ReqVO uploadReqVO) throws Exception {
+        // 1. 解码 Base64 内容
+        byte[] content = decodeBase64Content(uploadReqVO.getBase64Content());
+        
+        // 2. 推断文件类型
+        String contentType = FileTypeUtils.getMineType(content, uploadReqVO.getFileName());
+        
+        // 3. 上传文件并返回完整信息
+        return createFileWhitReturn(content, uploadReqVO.getFileName(), uploadReqVO.getDirectory(), 
+                contentType, uploadReqVO.getEncrypt());
+    }
+
+    /**
+     * 解码 Base64 内容
+     * 
+     * @param base64Content Base64 编码的内容
+     * @return 解码后的字节数组
+     */
+    private byte[] decodeBase64Content(String base64Content) {
+        try {
+            // 移除可能存在的 Base64 数据 URL 前缀 (例如: data:image/png;base64,)
+            String actualBase64 = base64Content;
+            if (base64Content.contains(",")) {
+                actualBase64 = base64Content.substring(base64Content.indexOf(",") + 1);
+            }
+            return Base64.getDecoder().decode(actualBase64);
+        } catch (IllegalArgumentException e) {
+            throw exception(FILE_IS_EMPTY);
+        }
+    }
+
     private FileDO uploadFile(byte[] content, String name, String directory, String type, Boolean encrypt) throws Exception {
 
         String aesIvBase64 = null;