src/main/java/com/example/g8backend/controller/AuthController.java

package com.example.g8backend.controller;

import com.example.g8backend.entity.User;
import com.example.g8backend.service.IUserService;
import com.example.g8backend.util.JwtUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.web.bind.annotation.*;

import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/auth")
public class AuthController {

    @Autowired
    private IUserService userService;

    @Autowired
    private PasswordEncoder passwordEncoder;

    @Autowired
    private JwtUtil jwtUtil;

    // 用户注册
    @PostMapping("/register")
    public ResponseEntity<?> register(@RequestBody User user) {
        if (userService.getUserByName(user.getUserName()) != null) {
            return ResponseEntity.badRequest().body("用户名已存在");
        }
        userService.registerUser(user);
        return ResponseEntity.ok("注册成功");
    }

    // 用户登录
    @PostMapping("/login")
    public ResponseEntity<?> login(@RequestBody User user) {
        User existingUser = userService.getUserByEmail(user.getEmail());
        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());
        Map<String, String> response = new HashMap<>();
        response.put("token", token);
        return ResponseEntity.ok(response);
    }
}