解决spring security中遇到的问题

 @RequestMapping(value = "/login/error")
    public void loginError(HttpServletRequest request, HttpServletResponse response) {
        response.setContentType("text/html;charset=utf-8");
        AuthenticationException exception =
                (AuthenticationException) request.getSession().getAttribute("SPRING_SECURITY_LAST_EXCEPTION");
        try {
            response.getWriter().write(exception.toString());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

@Configuration
public class BeanConfiguration {

    /**
     * @return Return to the custom password encryptor.
     * The reason why it is extracted separately as a configuration class is because if you don't do this,
     * you cannot achieve unified password encryption, which leads to login failures.
     * Different password encryption results in different passwords.
     */
    @Bean
    public PasswordEncoder passwordEncoder(){
        return new CustomPasswordEncoder();
    }
}

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    MyUserDetailsService myUserDetailsService;
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
                .authorizeRequests()
                .antMatchers("/**/*.css","/**/*.js","/**/*.jpg","/**/*.gif","/**/*.ico","/**/*.ico","/**/*.woff","/**/*.ttf","/**/*.png").permitAll()
//                .antMatchers("/main").hasAnyRole("ANONYMOUS,USER")
                .anyRequest().authenticated()
                .and().csrf().disable()
                //指定支持基于表单的身份验证。如果未指定FormLoginConfigurer#loginPage(String)，则将生成默认登录页面
                .formLogin()     //    此开始
                .loginPage("/login")   //security 自带登入接口
                .permitAll()
                .and()   //此结束
                .headers().frameOptions().disable()
                .and()
                .rememberMe().tokenValiditySeconds(1209600)
                .and()
                .logout()
                .permitAll();
    }
}