修改登录API逻辑

src/main/java/com/guo/learningprogresstracker/service/impl/UserServiceImpl.java

@@ -1,9 +1,12 @@
 package com.guo.learningprogresstracker.service.impl;
 
+import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.guo.learningprogresstracker.domain.entity.UserEntity;
+import com.guo.learningprogresstracker.exception.AppException;
 import com.guo.learningprogresstracker.service.UserService;
 import com.guo.learningprogresstracker.mapper.UserMapper;
+import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
 
 /**
@@ -12,9 +15,18 @@ import org.springframework.stereotype.Service;
 * @createDate 2024-06-09 15:28:48
 */
 @Service
+@RequiredArgsConstructor
 public class UserServiceImpl extends ServiceImpl<UserMapper, UserEntity>
     implements UserService{
 
+    @Override
+    public String authenticate(String username, String password) throws AppException {
+
+        UserEntity userEntity = this.getOneOpt(Wrappers.<UserEntity>lambdaQuery()
+                .eq(UserEntity::getUserName, username)
+                .eq(UserEntity::getUserPassword, password)).orElseThrow(() -> new AppException("账号或密码错误！"));
+        return  userEntity.getId();
+    }
 }