# DTO And RequestResult Refactor Implementation Plan

> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.

**Goal:** 将现有枚举、附件、RAG 三块接口统一改造成 DTO 入参与 DTO 返回，并引入 `RequestResult` 作为统一响应包装。

**Architecture:** `controller`、`service`、`mapper` 三层都尽量以 DTO 作为边界对象，实体类仅用于 MyBatis-Plus 持久化与表映射。控制层统一返回 `RequestResult<T>`，查询条件走 request/query DTO，列表和详情都返回 response DTO，避免继续直接暴露实体和零散参数。

**Tech Stack:** Java 21、Spring Boot 4、MyBatis-Plus、Spring MVC、JUnit 5

---

### Task 1: 建立统一响应体和 DTO 包结构

**Files:**
- Create: `src/main/java/com/bruce/common/dto/RequestResult.java`
- Create: `src/main/java/com/bruce/common/dto/request/`
- Create: `src/main/java/com/bruce/common/dto/response/`
- Create: `src/main/java/com/bruce/rag/dto/request/`
- Create: `src/main/java/com/bruce/rag/dto/response/`
- Modify: `src/test/java/com/bruce/common/enumconfig/SysEnumComponentStructureTests.java`
- Modify: `src/test/java/com/bruce/rag/RagComponentStructureTests.java`

- [ ] **Step 1: 写失败测试，固定统一返回体存在且控制层不再暴露裸实体**

  在结构测试中增加如下断言思路：

  ```java
  Method saveOrUpdateMethod = SysEnumController.class.getMethod("saveOrUpdate", SysEnumSaveRequest.class);
  assertEquals(RequestResult.class, saveOrUpdateMethod.getReturnType());
  ```

  ```java
  Method listMethod = RagStoreController.class.getMethod("list", RagStoreQueryRequest.class);
  assertEquals(RequestResult.class, listMethod.getReturnType());
  ```

- [ ] **Step 2: 运行测试并确认失败**

  Run: `.\mvnw.cmd "-Dtest=SysEnumComponentStructureTests,RagComponentStructureTests" test`

  Expected: FAIL，提示 DTO 或 `RequestResult` 类型不存在，或控制器方法签名不匹配。

- [ ] **Step 3: 最小化实现统一响应体和基础 DTO 目录**

  `RequestResult.java` 采用如下结构：

  ```java
  @Data
  @NoArgsConstructor
  @AllArgsConstructor
  public class RequestResult<T> {
      private boolean success;
      private String code;
      private String message;
      private T data;

      public static <T> RequestResult<T> success(T data) {
          return new RequestResult<>(true, "SUCCESS", "操作成功", data);
      }

      public static <T> RequestResult<T> success(String message, T data) {
          return new RequestResult<>(true, "SUCCESS", message, data);
      }

      public static <T> RequestResult<T> failure(String code, String message) {
          return new RequestResult<>(false, code, message, null);
      }
  }
  ```

- [ ] **Step 4: 运行测试并确认通过**

  Run: `.\mvnw.cmd "-Dtest=SysEnumComponentStructureTests,RagComponentStructureTests" test`

  Expected: PASS 或只剩下后续控制器签名相关失败。

- [ ] **Step 5: Commit**

  ```bash
  git add src/main/java/com/bruce/common/dto src/main/java/com/bruce/rag/dto src/test/java/com/bruce/common/enumconfig/SysEnumComponentStructureTests.java src/test/java/com/bruce/rag/RagComponentStructureTests.java
  git commit -m "refactor: 增加统一响应体与DTO结构"
  ```

### Task 2: 重构 sys_enum 模块为 DTO 入参与 DTO 返回

**Files:**
- Create: `src/main/java/com/bruce/common/dto/request/SysEnumQueryRequest.java`
- Create: `src/main/java/com/bruce/common/dto/request/SysEnumSaveRequest.java`
- Create: `src/main/java/com/bruce/common/dto/response/SysEnumResponse.java`
- Modify: `src/main/java/com/bruce/common/controller/SysEnumController.java`
- Modify: `src/main/java/com/bruce/common/service/ISysEnumService.java`
- Modify: `src/main/java/com/bruce/common/service/impl/SysEnumServiceImpl.java`
- Modify: `src/main/java/com/bruce/common/mapper/SysEnumMapper.java`
- Modify: `src/test/java/com/bruce/common/enumconfig/SysEnumComponentStructureTests.java`

- [ ] **Step 1: 写失败测试，固定 sys_enum 控制器和服务都使用 DTO**

  在 `SysEnumComponentStructureTests` 中增加断言：

  ```java
  Method queryMethod = SysEnumController.class.getMethod("queryByCatalogAndType", SysEnumQueryRequest.class);
  Method saveMethod = SysEnumController.class.getMethod("saveOrUpdate", SysEnumSaveRequest.class);
  Method serviceMethod = ISysEnumService.class.getMethod("listByCatalogAndType", SysEnumQueryRequest.class);
  ```

- [ ] **Step 2: 运行测试并确认失败**

  Run: `.\mvnw.cmd "-Dtest=SysEnumComponentStructureTests" test`

  Expected: FAIL，提示方法签名仍然是 `String` 或 `SysEnum`。

- [ ] **Step 3: 最小化实现 request/response DTO**

  `SysEnumQueryRequest.java`：

  ```java
  @Data
  public class SysEnumQueryRequest {
      private String catalog;
      private String type;
  }
  ```

  `SysEnumSaveRequest.java`：

  ```java
  @Data
  public class SysEnumSaveRequest {
      private Long id;
      private String catalog;
      private String type;
      private String name;
      private Integer value;
      private String strvalue;
      private Integer sort;
      private String remark;
  }
  ```

  `SysEnumResponse.java`：

  ```java
  @Data
  public class SysEnumResponse {
      private Long id;
      private String catalog;
      private String type;
      private String name;
      private Integer value;
      private String strvalue;
      private Integer sort;
      private String remark;
  }
  ```

- [ ] **Step 4: 修改 mapper/service/controller**

  - `ISysEnumService` 返回 `List<SysEnumResponse>`，保存返回 `SysEnumResponse`
  - `SysEnumServiceImpl` 新增 DTO 与实体互转私有方法
  - `SysEnumMapper` 保留 MP 基础能力；如需自定义查询，新增 DTO 查询方法签名
  - `SysEnumController` 所有接口返回 `RequestResult<?>`

  控制器目标形态：

  ```java
  @PostMapping("/query")
  public RequestResult<List<SysEnumResponse>> queryByCatalogAndType(@RequestBody SysEnumQueryRequest request) {
      return RequestResult.success(sysEnumService.listByCatalogAndType(request));
  }
  ```

- [ ] **Step 5: 运行测试并确认通过**

  Run: `.\mvnw.cmd "-Dtest=SysEnumComponentStructureTests" test`

  Expected: PASS

- [ ] **Step 6: Commit**

  ```bash
  git add src/main/java/com/bruce/common/controller/SysEnumController.java src/main/java/com/bruce/common/service/ISysEnumService.java src/main/java/com/bruce/common/service/impl/SysEnumServiceImpl.java src/main/java/com/bruce/common/dto/request/SysEnumQueryRequest.java src/main/java/com/bruce/common/dto/request/SysEnumSaveRequest.java src/main/java/com/bruce/common/dto/response/SysEnumResponse.java src/test/java/com/bruce/common/enumconfig/SysEnumComponentStructureTests.java
  git commit -m "refactor: 调整sys_enum接口为DTO模式"
  ```

### Task 3: 重构 sys_attachment 模块为 DTO 入参与 DTO 返回

**Files:**
- Create: `src/main/java/com/bruce/common/dto/request/SysAttachmentUploadRequest.java`
- Create: `src/main/java/com/bruce/common/dto/request/SysAttachmentQueryRequest.java`
- Create: `src/main/java/com/bruce/common/dto/response/SysAttachmentResponse.java`
- Modify: `src/main/java/com/bruce/common/controller/SysAttachmentController.java`
- Modify: `src/main/java/com/bruce/common/service/ISysAttachmentService.java`
- Modify: `src/main/java/com/bruce/common/service/impl/SysAttachmentServiceImpl.java`
- Modify: `src/test/java/com/bruce/common/attachment/SysAttachmentComponentStructureTests.java`

- [ ] **Step 1: 写失败测试，固定附件接口返回 `RequestResult` 且 service 返回 DTO**

  示例断言：

  ```java
  Method uploadMethod = SysAttachmentController.class.getMethod("upload", MultipartFile.class, SysAttachmentUploadRequest.class);
  assertEquals(RequestResult.class, uploadMethod.getReturnType());
  ```

- [ ] **Step 2: 运行测试并确认失败**

  Run: `.\mvnw.cmd "-Dtest=SysAttachmentComponentStructureTests" test`

  Expected: FAIL，提示控制器或服务方法签名不匹配。

- [ ] **Step 3: 新增附件 DTO**

  `SysAttachmentUploadRequest.java`：

  ```java
  @Data
  public class SysAttachmentUploadRequest {
      private String sourceType;
      private Long sourceId;
  }
  ```

  `SysAttachmentQueryRequest.java`：

  ```java
  @Data
  public class SysAttachmentQueryRequest {
      private String sourceType;
      private Long sourceId;
  }
  ```

  `SysAttachmentResponse.java`：

  ```java
  @Data
  public class SysAttachmentResponse {
      private Long id;
      private String sourceType;
      private Long sourceId;
      private String originalName;
      private String fileName;
      private String fileSuffix;
      private String contentType;
      private Long fileSize;
      private String storageType;
      private String filePath;
      private String fileUrl;
      private String remark;
  }
  ```

- [ ] **Step 4: 修改附件控制器和服务**

  - `ISysAttachmentService.upload` 返回 `SysAttachmentResponse`
  - 控制器上传接口返回 `RequestResult<SysAttachmentResponse>`
  - 如补充列表查询，也走 `SysAttachmentQueryRequest`

- [ ] **Step 5: 运行测试并确认通过**

  Run: `.\mvnw.cmd "-Dtest=SysAttachmentComponentStructureTests" test`

  Expected: PASS

- [ ] **Step 6: Commit**

  ```bash
  git add src/main/java/com/bruce/common/controller/SysAttachmentController.java src/main/java/com/bruce/common/service/ISysAttachmentService.java src/main/java/com/bruce/common/service/impl/SysAttachmentServiceImpl.java src/main/java/com/bruce/common/dto/request/SysAttachmentUploadRequest.java src/main/java/com/bruce/common/dto/request/SysAttachmentQueryRequest.java src/main/java/com/bruce/common/dto/response/SysAttachmentResponse.java src/test/java/com/bruce/common/attachment/SysAttachmentComponentStructureTests.java
  git commit -m "refactor: 调整附件接口为DTO模式"
  ```

### Task 4: 重构 rag_store 与 rag_document 模块为 DTO 入参与 DTO 返回

**Files:**
- Create: `src/main/java/com/bruce/rag/dto/request/RagStoreQueryRequest.java`
- Create: `src/main/java/com/bruce/rag/dto/request/RagStoreSaveRequest.java`
- Create: `src/main/java/com/bruce/rag/dto/request/RagDocumentQueryRequest.java`
- Create: `src/main/java/com/bruce/rag/dto/request/RagDocumentSaveRequest.java`
- Create: `src/main/java/com/bruce/rag/dto/response/RagStoreResponse.java`
- Create: `src/main/java/com/bruce/rag/dto/response/RagDocumentResponse.java`
- Modify: `src/main/java/com/bruce/rag/controller/RagStoreController.java`
- Modify: `src/main/java/com/bruce/rag/controller/RagDocumentController.java`
- Modify: `src/main/java/com/bruce/rag/service/IRagStoreService.java`
- Modify: `src/main/java/com/bruce/rag/service/IRagDocumentService.java`
- Modify: `src/main/java/com/bruce/rag/service/impl/RagStoreServiceImpl.java`
- Modify: `src/main/java/com/bruce/rag/service/impl/RagDocumentServiceImpl.java`
- Modify: `src/test/java/com/bruce/rag/RagComponentStructureTests.java`

- [ ] **Step 1: 写失败测试，固定 RAG 控制器和服务都使用 DTO**

  示例断言：

  ```java
  Method storeListMethod = RagStoreController.class.getMethod("list", RagStoreQueryRequest.class);
  Method documentListMethod = RagDocumentController.class.getMethod("list", RagDocumentQueryRequest.class);
  assertEquals(RequestResult.class, storeListMethod.getReturnType());
  assertEquals(RequestResult.class, documentListMethod.getReturnType());
  ```

- [ ] **Step 2: 运行测试并确认失败**

  Run: `.\mvnw.cmd "-Dtest=RagComponentStructureTests" test`

  Expected: FAIL，提示控制器和 service 仍然暴露实体或无 DTO。

- [ ] **Step 3: 新增 RAG DTO**

  `RagStoreQueryRequest.java`：

  ```java
  @Data
  public class RagStoreQueryRequest {
      private String storeCode;
      private String storeName;
      private String status;
  }
  ```

  `RagStoreResponse.java`：

  ```java
  @Data
  public class RagStoreResponse {
      private Long id;
      private String storeCode;
      private String storeName;
      private String description;
      private String status;
      private String remark;
  }
  ```

  `RagDocumentQueryRequest.java`：

  ```java
  @Data
  public class RagDocumentQueryRequest {
      private Long storeId;
      private Long attachmentId;
      private String parseStatus;
      private String indexStatus;
      private Boolean enabled;
  }
  ```

  `RagDocumentResponse.java`：

  ```java
  @Data
  public class RagDocumentResponse {
      private Long id;
      private Long storeId;
      private Long attachmentId;
      private String documentTitle;
      private String documentSummary;
      private String parseStatus;
      private String indexStatus;
      private Boolean enabled;
      private String errorMessage;
      private String remark;
  }
  ```

- [ ] **Step 4: 修改 RAG service/controller**

  - `IRagStoreService`、`IRagDocumentService` 返回 DTO
  - `RagStoreController` 和 `RagDocumentController` 返回 `RequestResult`
  - 查询接口改为 `@PostMapping("/query")` + `@RequestBody QueryRequest`

- [ ] **Step 5: 运行测试并确认通过**

  Run: `.\mvnw.cmd "-Dtest=RagComponentStructureTests" test`

  Expected: PASS

- [ ] **Step 6: Commit**

  ```bash
  git add src/main/java/com/bruce/rag/controller/RagStoreController.java src/main/java/com/bruce/rag/controller/RagDocumentController.java src/main/java/com/bruce/rag/service/IRagStoreService.java src/main/java/com/bruce/rag/service/IRagDocumentService.java src/main/java/com/bruce/rag/service/impl/RagStoreServiceImpl.java src/main/java/com/bruce/rag/service/impl/RagDocumentServiceImpl.java src/main/java/com/bruce/rag/dto/request src/main/java/com/bruce/rag/dto/response src/test/java/com/bruce/rag/RagComponentStructureTests.java
  git commit -m "refactor: 调整RAG接口为DTO模式"
  ```

### Task 5: 全量验证与整理

**Files:**
- Modify: `src/test/java/com/bruce/common/attachment/SysAttachmentComponentStructureTests.java`
- Modify: `src/test/java/com/bruce/common/enumconfig/SysEnumComponentStructureTests.java`
- Modify: `src/test/java/com/bruce/rag/RagComponentStructureTests.java`

- [ ] **Step 1: 运行定向测试，确认三块 DTO 改造都覆盖到**

  Run: `.\mvnw.cmd "-Dtest=SysAttachmentComponentStructureTests,SysEnumComponentStructureTests,RagComponentStructureTests" test`

  Expected: PASS

- [ ] **Step 2: 运行全量测试**

  Run: `.\mvnw.cmd test`

  Expected: `BUILD SUCCESS`

- [ ] **Step 3: 检查工作区**

  Run: `git status --short`

  Expected: 仅显示本次预期文件，或为空（若已提交）。

- [ ] **Step 4: Commit**

  ```bash
  git add src/test/java/com/bruce/common/attachment/SysAttachmentComponentStructureTests.java src/test/java/com/bruce/common/enumconfig/SysEnumComponentStructureTests.java src/test/java/com/bruce/rag/RagComponentStructureTests.java
  git commit -m "test: 校验DTO接口改造结构"
  ```