实现用户信息修改同步到数据库功能

后端实现：
- UserInfoService新增updateUsername和updateAvatarUrl方法
- UserController新增/updateUsername和/updateAvatar接口
- 支持修改用户名和头像URL
- 数据同步保存到user_info表

前端实现：
- api.js新增updateUsername和updateAvatar方法
- “我的”页面editUsername方法改为调用后端API
- 修改成功后同步更新本地缓存
- 错误处理更友好

功能特点：
- 修改用户名实时同步到数据库
- 更新本地缓存确保数据一致性
- “我的账号”页面自动加载最新用户信息
- 所有页面数据来源统一

src/main/java/xuan/controller/UserController.java

@@ -156,6 +156,54 @@ public class UserController {
         return result;
     }
     
+    @PostMapping("/updateUsername")
+    public Map<String, Object> updateUsername(@RequestBody Map<String, Object> params) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            String userId = params.get("userId").toString();
+            String username = params.get("username").toString();
+            
+            UserInfo user = userInfoService.updateUsername(userId, username);
+            if (user != null) {
+                Map<String, Object> data = new HashMap<>();
+                data.put("username", user.getUsername());
+                result.put("success", true);
+                result.put("data", data);
+            } else {
+                result.put("success", false);
+                result.put("error", "用户不存在");
+            }
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("error", e.getMessage());
+        }
+        return result;
+    }
+    
+    @PostMapping("/updateAvatar")
+    public Map<String, Object> updateAvatar(@RequestBody Map<String, Object> params) {
+        Map<String, Object> result = new HashMap<>();
+        try {
+            String userId = params.get("userId").toString();
+            String avatarUrl = params.get("avatarUrl").toString();
+            
+            UserInfo user = userInfoService.updateAvatarUrl(userId, avatarUrl);
+            if (user != null) {
+                Map<String, Object> data = new HashMap<>();
+                data.put("avatarUrl", user.getAvatarUrl());
+                result.put("success", true);
+                result.put("data", data);
+            } else {
+                result.put("success", false);
+                result.put("error", "用户不存在");
+            }
+        } catch (Exception e) {
+            result.put("success", false);
+            result.put("error", e.getMessage());
+        }
+        return result;
+    }
+    
     @PostMapping("/permissionLog")
     public Map<String, Object> addPermissionLog(@RequestBody Map<String, Object> params) {
         Map<String, Object> result = new HashMap<>();

src/main/java/xuan/service/UserInfoService.java

@@ -63,6 +63,24 @@ public class UserInfoService {
         return null;
     }
     
+    public UserInfo updateUsername(String userId, String username) {
+        UserInfo user = userInfoRepository.findByUserId(userId);
+        if (user != null) {
+            user.setUsername(username);
+            return userInfoRepository.save(user);
+        }
+        return null;
+    }
+    
+    public UserInfo updateAvatarUrl(String userId, String avatarUrl) {
+        UserInfo user = userInfoRepository.findByUserId(userId);
+        if (user != null) {
+            user.setAvatarUrl(avatarUrl);
+            return userInfoRepository.save(user);
+        }
+        return null;
+    }
+    
     private String generateUsername() {
         String prefix = "玄机用户";
         String suffix = generateRandomString(6);

xuan-deduct-uniapp/src/pages/mine/mine.vue

@@ -173,14 +173,31 @@ export default {
         editable: true,
         placeholderText: '请输入用户名',
         content: this.username,
-        success: (res) => {
+        success: async (res) => {
           if (res.confirm && res.content) {
-            this.username = res.content
-            uni.setStorageSync('username', res.content)
-            uni.showToast({
-              title: '修改成功',
-              icon: 'success'
-            })
+            try {
+              await api.userApi.updateUsername(this.userId, res.content)
+              this.username = res.content
+              uni.setStorageSync('username', res.content)
+              
+              const userInfoStr = uni.getStorageSync('userInfo')
+              if (userInfoStr) {
+                const userInfo = JSON.parse(userInfoStr)
+                userInfo.username = res.content
+                uni.setStorageSync('userInfo', JSON.stringify(userInfo))
+              }
+              
+              uni.showToast({
+                title: '修改成功',
+                icon: 'success'
+              })
+            } catch (e) {
+              console.error('修改用户名失败:', e)
+              uni.showToast({
+                title: '修改失败：' + (e.message || '未知错误'),
+                icon: 'none'
+              })
+            }
           }
         }
       })

xuan-deduct-uniapp/src/utils/api.js

@@ -369,10 +369,24 @@ const userApi = {
   },
   updatePhone: (userId, phone) => {
     return request({
-      url: '/user/phone',
+      url: '/user/updatePhone',
       method: 'POST',
       data: { userId: userId, phone: phone }
     })
+  },
+  updateUsername: (userId, username) => {
+    return request({
+      url: '/user/updateUsername',
+      method: 'POST',
+      data: { userId: userId, username: username }
+    })
+  },
+  updateAvatar: (userId, avatarUrl) => {
+    return request({
+      url: '/user/updateAvatar',
+      method: 'POST',
+      data: { userId: userId, avatarUrl: avatarUrl }
+    })
   }
 }