feat:

src/main/java/com/guwan/backend/security/UserDetailsServiceImpl.java

@@ -1,7 +1,10 @@
 package com.guwan.backend.security;
 
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.guwan.backend.dto.user.UserDTO;
-import com.guwan.backend.service.UserService;
+import com.guwan.backend.entity.User;
+import com.guwan.backend.mapper.UserMapper;
+import com.guwan.backend.security.CustomUserDetails;
 import lombok.RequiredArgsConstructor;
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetails;
@@ -16,30 +19,33 @@ import java.util.List;
 @RequiredArgsConstructor
 public class UserDetailsServiceImpl implements UserDetailsService {
 
-    private final UserService userService;
+    private final UserMapper userMapper;
 
     @Override
     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
-        UserDTO user = userService.findByUsername(username);
+        User user = userMapper.selectOne(
+            new LambdaQueryWrapper<User>()
+                .eq(User::getUsername, username)
+        );
+        
         if (user == null) {
             throw new UsernameNotFoundException("用户不存在");
         }
-        return convertToUserDetailsWithoutPassword(user);
+        
+        return convertToUserDetails(user);
     }
 
     public UserDetails loadUserById(Long userId) throws UsernameNotFoundException {
-        UserDTO user = userService.getUserById(userId);
+        User user = userMapper.selectById(userId);
         if (user == null) {
             throw new UsernameNotFoundException("用户不存在");
         }
-        return convertToUserDetailsWithoutPassword(user);
+        return convertToUserDetails(user);
     }
 
-
-
-    private UserDetails convertToUserDetailsWithoutPassword(UserDTO user) {
+    private UserDetails convertToUserDetails(User user) {
         List<SimpleGrantedAuthority> authorities = new ArrayList<>();
-        authorities.add(new SimpleGrantedAuthority("Admin"));
+        authorities.add(new SimpleGrantedAuthority("ROLE_USER"));
         
         return new CustomUserDetails(
             user.getId(),

src/main/java/com/guwan/backend/service/impl/UserServiceImpl.java

@@ -13,6 +13,7 @@ import com.guwan.backend.service.UserService;
 import com.guwan.backend.util.JwtUtil;
 import com.guwan.backend.util.RedisUtil;
 import com.guwan.backend.util.RedisUtils;
+import com.guwan.backend.util.SecurityUtil;
 import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.BeanUtils;
@@ -37,6 +38,7 @@ public class UserServiceImpl implements UserService {
     private final RedisUtil redisUtil;
     private final RedisUtils redisUtils;
     private final EmailService emailService;
+    private final SecurityUtil securityUtil;
 
     private static final String USER_CACHE_KEY = "user:";
     private static final long USER_CACHE_DURATION = 3600L;  // 1小时
@@ -161,22 +163,7 @@ public class UserServiceImpl implements UserService {
 
     @Override
     public Long getCurrentUserId() {
-        // 从SecurityContext中获取认证信息
-        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
-        
-        // 如果没有认证信息，返回null
-        if (authentication == null || !authentication.isAuthenticated() || 
-            authentication instanceof AnonymousAuthenticationToken) {
-            return null;
-        }
-        
-        // 获取UserDetails
-        Object principal = authentication.getPrincipal();
-        if (principal instanceof CustomUserDetails) {
-            return ((CustomUserDetails) principal).getUserId();
-        }
-        //demo
-        return null;
+        return securityUtil.getCurrentUserId();
     }
 
     @Override

src/main/java/com/guwan/backend/util/SecurityUtil.java

@@ -0,0 +1,27 @@
+package com.guwan.backend.util;
+
+import com.guwan.backend.security.CustomUserDetails;
+import org.springframework.security.authentication.AnonymousAuthenticationToken;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.context.SecurityContextHolder;
+import org.springframework.stereotype.Component;
+
+@Component
+public class SecurityUtil {
+    
+    public Long getCurrentUserId() {
+        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
+        
+        if (authentication == null || !authentication.isAuthenticated() || 
+            authentication instanceof AnonymousAuthenticationToken) {
+            return null;
+        }
+        
+        Object principal = authentication.getPrincipal();
+        if (principal instanceof CustomUserDetails) {
+            return ((CustomUserDetails) principal).getUserId();
+        }
+        
+        return null;
+    }
+}