fix Trackerservice

Change-Id: Id041d972cab72183d2677f98f95d72d9d7d83793
diff --git a/src/main/java/com/example/g8backend/controller/AuthController.java b/src/main/java/com/example/g8backend/controller/AuthController.java
index 39183c1..4b3be4b 100644
--- a/src/main/java/com/example/g8backend/controller/AuthController.java
+++ b/src/main/java/com/example/g8backend/controller/AuthController.java
@@ -21,16 +21,12 @@
 
     @Autowired
     private IUserService userService;
-
     @Autowired
     private mailUtil mailUtil;
-
     @Autowired
     private PasswordEncoder passwordEncoder;
-
     @Autowired
     private JwtUtil jwtUtil;
-
     @Autowired
     RedisTemplate<String, Object> redisTemplate;
 
@@ -79,7 +75,7 @@
         if (existingUser == null || !passwordEncoder.matches(user.getPassword(), existingUser.getPassword())) {
             return ResponseEntity.badRequest().body("用户名或密码错误");
         }
-        String token = jwtUtil.generateToken(existingUser.getUserName());
+        String token = jwtUtil.generateToken(existingUser.getUserId());
         Map<String, String> response = new HashMap<>();
         response.put("token", token);
         return ResponseEntity.ok(response);