为 Angular 2 配置 Spring 安全性

Question

我正在构建一个 Angular 2 Web 客户端，它尝试使用 SpringBoot Security 对服务器进行 POST。我应该如何编写我的 Spring 安全配置？

我的 Angular 身份验证调用：

public login(username, password) {
  let body = JSON.stringify({username: username, password: password});
  let headers = new Headers({'Content-Type': 'application/json'});
  let options = new RequestOptions({headers: headers});
  this.http.post("http://localhost:8080/login", body, options)
    .subscribe(
      res => this.loggedIn = true,
      err => console.error("failed authentication: " + err),
      () => console.log("tried authentication")
    );
}

身份验证失败并出现错误：

{"timestamp":1487007177889,"status":401,"error":"Unauthorized","message":"Authentication Failed: Empty Username","path":"/login"}

我的spring安全配置：

@Configuration
public class WebSecurityConfigurer extends WebSecurityConfigurerAdapter {    
    @Autowired
    private RestAuthenticationEntryPoint restAuthenticationEntryPoint;
    @Autowired
    private RestAuthenticationSuccessHandler restAuthenticationSuccessHandler;
    @Autowired
    private RestAuthenticationFailureHandler restAuthenticationFailureHandler;
    @Autowired
    private RestLogoutSuccessHandler restLogoutSuccessHandler;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable()
                .exceptionHandling()
                .authenticationEntryPoint(restAuthenticationEntryPoint)

                .and().formLogin()
                .loginProcessingUrl("/login")
                .usernameParameter("username")
                .passwordParameter("password")
                .successHandler(restAuthenticationSuccessHandler)
                .failureHandler(restAuthenticationFailureHandler)
                .permitAll()

                .and().logout()
                .logoutUrl("/logout")
                .logoutSuccessHandler(restLogoutSuccessHandler)
                .permitAll()

                .and().authorizeRequests().anyRequest().authenticated()
        ;
    }

    @Override
    public void configure(AuthenticationManagerBuilder builder) throws Exception {
        // This configuration has been tested, it works.
        // It has been removed for better readability
    }

    @Bean
    public LdapContextSource contextSource() {
        // This configuration has been tested, it works.
        // It has been removed for better readability
    }
}

Answer 1

您应该使用application/x-www-form-urlencoded 参数进行表单登录，而不是 JSON。这就是错误说用户名丢失的原因，因为 Spring Security 试图从 HttpServletRequest#getParameters 获取它。要在 Angular 中发送表单参数，您可以这样做

import { URLSearchParams } from '@angular/http';

let params = new URLSearchParams();
params.set('username', username);
params.set('password', password);

如果你将它设置为 Http 请求的主体参数，它应该（据我记得）自动被序列化为正确的格式，即

username=xxx&password=xxx

而且我认为您也不需要将标题 Content-Type 设置为 applicatio/x-www-form-urlencoded。我认为当 Angular 检测到 URLSearchParams 作为正文时，也应该为您设置。