diff --git a/code/backend/src/main/java/org/example/common/ResponseStatusEnum.java b/code/backend/src/main/java/org/example/common/ResponseStatusEnum.java
index cd398bb..85b5585 100644
--- a/code/backend/src/main/java/org/example/common/ResponseStatusEnum.java
+++ b/code/backend/src/main/java/org/example/common/ResponseStatusEnum.java
@@ -28,6 +28,10 @@ public enum ResponseStatusEnum implements CommonResp{
     REQUEST_BODY_MISSING("1017", "请求数据体缺失"),
     LOGIN_NOT_ADMIN("1018", "管理员登录失败，不是管理员"),
 
+    USERNAME_EMPTY("1019", "用户名为空"),
+    PASSWORD_EMPTY("1020", "密码为空"),
+    NAME_EMPTY("1021", "用户昵称为空"),
+
 
     /** 20XX 表示服务器错误 */
     PICTURE_UPLOAD_FAILED("2001","上传图片失败"),
diff --git a/code/backend/src/main/java/org/example/controller/UserController.java b/code/backend/src/main/java/org/example/controller/UserController.java
index a479b91..24ea1cd 100644
--- a/code/backend/src/main/java/org/example/controller/UserController.java
+++ b/code/backend/src/main/java/org/example/controller/UserController.java
@@ -16,8 +16,8 @@ public class UserController {
     UserService userService;
 
     @Operation(summary = "注册", description = "用户注册接口")
-    @PostMapping("/regist")
-    public Result regist(@RequestBody User user){
+    @PostMapping("/register")
+    public Result register(@RequestBody User user){
         System.out.println(user);
         return userService.register(user);
     }
diff --git a/code/backend/src/main/java/org/example/exception/GlobalExceptionHandler.java b/code/backend/src/main/java/org/example/exception/GlobalExceptionHandler.java
index efc4ea1..1ec3247 100644
--- a/code/backend/src/main/java/org/example/exception/GlobalExceptionHandler.java
+++ b/code/backend/src/main/java/org/example/exception/GlobalExceptionHandler.java
@@ -6,6 +6,7 @@ import cn.hutool.log.level.Level;
 import org.example.common.ResponseStatusEnum;
 import org.example.utils.Result;
 import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.RestControllerAdvice;
 
@@ -47,4 +48,9 @@ public class GlobalExceptionHandler {
         return Result.error(ResponseStatusEnum.REQUEST_BODY_MISSING);
     }
 
+    @ExceptionHandler(value = HttpRequestMethodNotSupportedException.class)
+    public Result handler(HttpRequestMethodNotSupportedException exception) {
+        log.log(Level.ERROR, exception.getMessage());
+        return Result.error(String.valueOf(exception.getStatusCode().value()), exception.getMessage());
+    }
 }
diff --git a/code/backend/src/main/java/org/example/service/impl/UserServiceImpl.java b/code/backend/src/main/java/org/example/service/impl/UserServiceImpl.java
index fc478f6..478d4ba 100644
--- a/code/backend/src/main/java/org/example/service/impl/UserServiceImpl.java
+++ b/code/backend/src/main/java/org/example/service/impl/UserServiceImpl.java
@@ -1,6 +1,9 @@
 package org.example.service.impl;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import io.micrometer.common.util.StringUtils;
+import org.example.common.ResponseStatusEnum;
+import org.example.exception.CustomException;
 import org.example.mapper.UserMapper;
 import org.example.pojo.User;
 import org.example.service.UserService;
@@ -16,23 +19,25 @@ public class UserServiceImpl implements UserService {
 
     public Result register(User user){
         QueryWrapper<User> queryWrapper = new QueryWrapper<>();
+        validate(user.getUsername(), user.getPassword(), user.getName());
         queryWrapper.eq("username",user.getUsername());
         boolean isExist = userMapper.exists(queryWrapper);
         if(isExist){
-            return Result.error("-1","用户名已被使用");
+            return Result.error(ResponseStatusEnum.USER_ACCOUNT_EXISTED);
         }
         user.setPassword(MD5Util.encrypt(user.getPassword()));
-        Integer rows = userMapper.insert(user);
-        if(rows>0){
+        int rows = userMapper.insert(user);
+        if(rows > 0){
             return Result.success();
         }
-        return Result.error("-1","failure");
+        return Result.error(ResponseStatusEnum.ERROR);
     }
 
     @Override
     public Result login(User user) {
         String username = user.getUsername();
         String password = user.getPassword();
+        validate(username, password);
         QueryWrapper<User> queryWrapper = new QueryWrapper<>();
         queryWrapper.eq("username",username).eq("password",MD5Util.encrypt(password));
         User res = userMapper.selectOne(queryWrapper);
@@ -40,6 +45,30 @@ public class UserServiceImpl implements UserService {
             res.setPassword(null);
             return Result.success(res);
         }
-        return Result.error("-1","账号或者密码错误");
+        return Result.error(ResponseStatusEnum.USERNAME_PASSWORD_ERROR);
+    }
+
+    public void validate(String username, String password) {
+        if (StringUtils.isEmpty(username)) {
+            // 用户名为空
+            throw new CustomException(ResponseStatusEnum.USERNAME_EMPTY);
+        }
+        if (StringUtils.isEmpty(password)) {
+            // 密码为空
+            throw new CustomException(ResponseStatusEnum.PASSWORD_EMPTY);
+        }
+    }
+
+    /**
+     * 非空校验校验用户名、密码、昵称
+     * @param username 用户名
+     * @param password 密码
+     * @param name 用户昵称
+     */
+    public void validate(String username, String password, String name) {
+        validate(username, password);
+        if (StringUtils.isEmpty(name)) {
+            throw new CustomException(ResponseStatusEnum.NAME_EMPTY);
+        }
     }
 }