import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.ResponseEntity;import org.springframework.security.authentication.AuthenticationManager;import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;import org.springframework.security.core.Authentication;import org.springframework.security.core.userdetails.UserDetails;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestBody;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class AuthController { @Autowired private AuthenticationManager authenticationManager; @Autowired private JwtTokenUtil jwtTokenUtil; @Autowired private UserDetailsService userDetailsService; @PostMapping("/login") public ResponseEntity<?> login(@RequestBody AuthRequest authRequest) throws Exception { try { Authentication authentication = authenticationManager.authenticate( new UsernamePasswordAuthenticationToken(authRequest.getUsername(), authRequest.getPassword()) ); UserDetails userDetails = userDetailsService.loadUserByUsername(authRequest.getUsername()); String token = jwtTokenUtil.generateToken(userDetails); return ResponseEntity.ok(new AuthResponse(token)); } catch (Exception e) { throw new Exception("Incorrect username or password", e); } }}中AuthRequest

是一个自定义类，用于接收用户登录请求中的用户名和密码。它可能长这样：

public class AuthRequest {
    private String username;
    private String password;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

在上面的代码中，我们定义了一个包含用户名和密码的类，可以通过setter和getter方法访问它们。这个类将被用作请求体来接收用户的登录请求。