@PostMapping("/user/login")
    public ResponseResult login(User user){
        //登錄，這里登錄的時候需要傳入用戶名和密碼
        System.out.println("user = "+user.toString());
        return loginService.login(user);
        //調用LoginServiceImpl中的login方法
    }

public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Bean
    public PasswordEncoder passwordEncoder(){
        //只需要把BCryptPasswordEncoder對象注入Spring容器中
        //SpringSecurity就會使用PasswordEncoder來進行校驗
        return new BCryptPasswordEncoder();
    }
    //自定義AuthenticationManager
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        System.out.println("###begin configure");
        http
                //關閉csrf
                .csrf().disable()
                //不通過Session獲取SecurityContext
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                .authorizeRequests()
                //對于登錄接口允許匿名訪問
                .antMatchers("/user/login").anonymous()
                //除上面外所有請求需要鑒權認證
                .anyRequest().authenticated();
    }
    //調用
    //暴露自定義的AuthenticationManager
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception{
        return super.authenticationManagerBean();
    }
}

@PostMapping("/user/login")
public ResponseResult login(@RequestBody User user){
    //登錄，這里登錄的時候需要傳入用戶名和密碼
    return loginService.login(user);
    //調用LoginServiceImpl中的login方法
}