春季启动：CORS问题

问题描述

我正在使用Spring Boot版本2.0.2Release。
以下是我的安全配置

I am using Spring Boot version 2.0.2Release.Below is my security configuration

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(
        prePostEnabled = true,
        securedEnabled = true,
        jsr250Enabled = true)
@ComponentScan("com.mk")
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private AuthenticationProvider myAuthenticationProvider;

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.csrf().disable();
        http.cors().configurationSource(corsConfigurationSource())
                .and()
                .csrf().disable()
                .anonymous().and()
                .authorizeRequests()
                .antMatchers(HttpMethod.GET,"/index.html").permitAll()
                .antMatchers(HttpMethod.POST,"/login").permitAll()
                .antMatchers(HttpMethod.GET,"*").authenticated()
                .and().httpBasic();
    }
    @Bean
    CorsConfigurationSource corsConfigurationSource() {
        CorsConfiguration configuration = new CorsConfiguration();
        configuration.setAllowedOrigins(Arrays.asList("*"));
        configuration.setAllowedMethods(Arrays.asList("GET","POST"));
        configuration.setAllowCredentials(true);
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**", configuration);
        return source;
    }

由于以下原因，我无法调用任何API（包括登录为allowAll） CORS问题。

I am unable to invoke any API (including login which is permitAll) because of CORS issue.

在浏览器上，我得到了它（它与Postman兼容，因为未在其中进行CORS检查）

On Browser I am getting (It works with Postman, since CORS check is not made there)

无法加载：对预检的响应
请求未通过访问控制检查：
所请求的
资源上没有
'Access-Control-Allow-Origin'标头。因此，不允许
访问原始地址‘。响应的HTTP状态码为403。

推荐答案

尽管Spring安全性提供了一种配置CORS的方法在http配置器中，有一种更干净的方法可将CORS过滤器添加到应用程序中-

Although Spring security provides a way to configure CORS in http configurer, there's a much cleaner approach to add CORS filter to the application-

@Component
@Order(Ordered.HIGHEST_PRECEDENCE)
public class MyCORSFilter implements Filter {


@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {

    HttpServletRequest request = (HttpServletRequest) req;
    HttpServletResponse response = (HttpServletResponse) res;

    response.setHeader("Access-Control-Allow-Origin", request.getHeader("Origin"));
    response.setHeader("Access-Control-Allow-Credentials", "true");
    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
    response.setHeader("Access-Control-Max-Age", "3600");
    response.setHeader("Access-Control-Allow-Headers", "Content-Type, Accept, X-Requested-With, remember-me");

    chain.doFilter(req, res);
}

@Override
public void init(FilterConfig filterConfig) {
}

@Override
public void destroy() {
}

}

按最高优先级确保 javax.servlet.Filter 的MyCORSFilter实现是链中的第一个。希望这会有所帮助

Ordering the filter with highest precedence makes sure that MyCORSFilter implementation of javax.servlet.Filter is the first one in the chain. Hope this helps

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