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pc-cattle-transportation/USER_DELETE_IMPLEMENTATION.md
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pc-cattle-transportation/USER_DELETE_IMPLEMENTATION.md
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# 用户管理删除功能实现报告
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## 概述
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实现用户管理页面中的删除按钮功能,可以删除数据库中的用户数据。
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## 实现内容
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### 1. 前端实现 (`pc-cattle-transportation/src/views/system/user.vue`)
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#### 导入必要的依赖
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```javascript
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import { ElMessage, ElMessageBox } from 'element-plus';
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import { sysUserList, sysUserDel, sysUserSave } from '@/api/sys.js';
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```
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#### 删除用户方法
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```92:117:pc-cattle-transportation/src/views/system/user.vue
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// 删除用户
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const delClick = (row) => {
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ElMessageBox.confirm('请确认是否删除该用户?', '提示', {
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cancelButtonText: '取消',
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confirmButtonText: '确定',
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type: 'warning',
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})
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.then(() => {
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sysUserDel(row.id)
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.then(() => {
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ElMessage.success('删除成功');
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getDataList();
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})
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.catch((error) => {
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ElMessage.error('删除失败');
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console.error('删除失败:', error);
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});
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})
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.catch(() => {
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// 用户取消删除
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});
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};
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```
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#### 表格操作列
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```20:25:pc-cattle-transportation/src/views/system/user.vue
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<el-table-column label="操作" width="150">
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<template #default="scope">
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<el-button link type="primary" @click="showAddDialog(scope.row)">编辑</el-button>
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<el-button link type="primary" @click="delClick(scope.row)" style="color: #f56c6c;">删除</el-button>
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</template>
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</el-table-column>
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```
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### 2. API接口 (`pc-cattle-transportation/src/api/sys.js`)
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```89:95:pc-cattle-transportation/src/api/sys.js
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// 子账号管理-删除
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export function sysUserDel(id) {
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return request({
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url: `/sysUser/delete?id=${id}`,
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method: 'GET',
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});
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}
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```
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### 3. 后端接口实现
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#### Controller (`SysUserController.java`)
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```46:49:tradeCattle/aiotagro-cattle-trade/src/main/java/com/aiotagro/cattletrade/business/controller/SysUserController.java
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@GetMapping("/delete")
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public AjaxResult delete(@RequestParam Integer id) {
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return userService.delete(id);
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}
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```
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#### Service (`SysUserServiceImpl.java`)
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```80:84:tradeCattle/aiotagro-cattle-trade/src/main/java/com/aiotagro/cattletrade/business/service/impl/SysUserServiceImpl.java
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@Override
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public AjaxResult delete(Integer id) {
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removeById(id);
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return AjaxResult.success();
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}
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```
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## 功能特点
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1. **二次确认**:点击删除按钮时,会弹出确认对话框
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2. **直接删除**:确认后直接调用后端接口删除数据库记录
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3. **自动刷新**:删除成功后自动刷新列表
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4. **错误处理**:删除失败时显示错误提示
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5. **用户友好**:删除按钮使用红色样式,清晰地表示危险操作
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## 工作流程
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1. 用户点击"删除"按钮
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2. 弹出确认对话框:"请确认是否删除该用户?"
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3. 用户点击"确定"
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4. 前端调用 `/sysUser/delete?id={userId}` 接口
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5. 后端执行 `removeById(id)` 删除数据库记录
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6. 返回成功响应
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7. 前端显示"删除成功"提示
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8. 自动刷新用户列表
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## 测试建议
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1. **功能测试**
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- 点击删除按钮,确认对话框正常弹出
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- 点击取消,不执行删除
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- 点击确定,用户被删除
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- 删除后列表自动刷新
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2. **边界测试**
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- 测试删除不存在的用户ID
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- 测试网络异常情况
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3. **权限测试**
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- 确认用户是否有删除权限
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## 修改的文件
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### 前端
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- ✅ `pc-cattle-transportation/src/views/system/user.vue` - 实现删除功能和完整的数据列表
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- ✅ `pc-cattle-transportation/src/api/sys.js` - API接口(已存在)
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### 后端
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- ✅ `tradeCattle/aiotagro-cattle-trade/src/main/java/com/aiotagro/cattletrade/business/controller/SysUserController.java` - Controller接口(已存在)
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- ✅ `tradeCattle/aiotagro-cattle-trade/src/main/java/com/aiotagro/cattletrade/business/service/impl/SysUserServiceImpl.java` - Service实现(已存在)
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## 注意事项
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1. **数据安全**:删除操作是永久性的,不可恢复(除非有备份)
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2. **权限控制**:建议在后端添加权限校验,只允许特定角色删除用户
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3. **关联数据**:如果用户有关联数据(如订单、设备等),需要检查是否应该级联删除或阻止删除
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## 后续改进建议
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1. 添加权限校验
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2. 添加关联数据检查(如用户是否有关联的订单或设备)
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3. 实现软删除(添加 `isDelete` 标记,而不是物理删除)
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4. 添加操作日志记录
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## 创建时间
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2025-01-16
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