feat(auth): 添加获取用户信息接口

- 在 AuthController 中新增 getUserInfo 接口，用于获取当前登录用户的信息
- 创建 UserInfoVO 类，封装用户 ID、用户名和头像信息
- 在 AuthService 中实现 getUserInfo 方法，从数据库查询用户并转换为 UserInfoVO
- 头像字段使用 Base64 编码返回- 使用 StpUtil 获取当前登录用户的 ID 进行查询

src/main/java/com/kane/animo/auth/controller/AuthController.java

@@ -1,13 +1,11 @@
 package com.kane.animo.auth.controller;
 
 import com.kane.animo.auth.domain.form.LoginForm;
+import com.kane.animo.auth.domain.vo.UserInfoVO;
 import com.kane.animo.auth.service.AuthService;
 import com.kane.animo.model.R;
 import jakarta.annotation.Resource;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 /**
  * 认证
@@ -40,4 +38,13 @@ public class AuthController {
     public R<String> register(@RequestBody LoginForm from) {
         return service.register(from);
     }
+
+    /**
+     * 获取用户信息
+     * @return 用户信息
+     */
+    @GetMapping("/getUserInfo")
+    public R<UserInfoVO> getUserInfo() {
+        return R.success(service.getUserInfo());
+    }
 }

src/main/java/com/kane/animo/auth/domain/vo/UserInfoVO.java

@@ -0,0 +1,26 @@
+package com.kane.animo.auth.domain.vo;
+
+import lombok.Data;
+import lombok.experimental.Accessors;
+
+/**
+ * 用户信息
+ * @author Kane
+ * @since 2025/11/12 16:50
+ */
+@Data
+@Accessors(chain = true)
+public class UserInfoVO {
+    /**
+     * 用户ID
+     */
+    private Long userId;
+    /**
+     * 用户名
+     */
+    private String name;
+    /**
+     * 头像
+     */
+    private String avatar;
+}

src/main/java/com/kane/animo/auth/service/AuthService.java

@@ -1,6 +1,7 @@
 package com.kane.animo.auth.service;
 
 import com.kane.animo.auth.domain.form.LoginForm;
+import com.kane.animo.auth.domain.vo.UserInfoVO;
 import com.kane.animo.model.R;
 
 /**
@@ -22,4 +23,10 @@ public interface AuthService {
      * @return 注册结果
      */
     R<String> register(LoginForm from);
+
+    /**
+     * 获取用户信息
+     * @return 用户信息
+     */
+    UserInfoVO getUserInfo();
 }

src/main/java/com/kane/animo/auth/service/impl/AuthServiceImpl.java

@@ -5,6 +5,7 @@ import cn.dev33.satoken.stp.StpUtil;
 import com.baomidou.mybatisplus.extension.conditions.query.LambdaQueryChainWrapper;
 import com.kane.animo.auth.domain.User;
 import com.kane.animo.auth.domain.form.LoginForm;
+import com.kane.animo.auth.domain.vo.UserInfoVO;
 import com.kane.animo.auth.mapper.UserMapper;
 import com.kane.animo.auth.service.AuthService;
 import com.kane.animo.exception.ServiceException;
@@ -12,6 +13,9 @@ import com.kane.animo.model.R;
 import jakarta.annotation.Resource;
 import org.springframework.stereotype.Service;
 
+import java.io.IOException;
+import java.util.Base64;
+
 /**
  * 认证服务
  * @author Kane
@@ -64,4 +68,25 @@ public class AuthServiceImpl implements AuthService {
         userMapper.insert(user);
         return login(from);
     }
+
+    /**
+     * 获取用户信息
+     *
+     * @return 用户信息
+     */
+    @Override
+    public UserInfoVO getUserInfo() {
+        User one = new LambdaQueryChainWrapper<>(userMapper)
+                .eq(User::getId, StpUtil.getLoginIdAsLong())
+                .one();
+        String avatar = null;
+        try {
+            avatar = Base64.getEncoder().encodeToString(one.getAvatar().readAllBytes());
+        } catch (Exception ignored) {
+        }
+        return new UserInfoVO()
+                .setName(one.getUser())
+                .setUserId(one.getId())
+                .setAvatar(avatar);
+    }
 }