对于预检，响应具有无效的HTTP状态代码401，用于oauth / token [英] Response for preflight has invalid HTTP status code 401 for oauth/token

问题描述

我在spring boot中为CORS实现了Filter。代码如下： -

I have implemented Filter for CORS in spring boot.The code is as follow:-

@SpringBootApplication
@Component
public class Application implements Filter {
public static void main(String[] args) {
    SpringApplication.run(Application.class, args);
}

@Override
public void init(FilterConfig filterConfig) throws ServletException {

}

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
    HttpServletRequest request = (HttpServletRequest) servletRequest;
    HttpServletResponse response = (HttpServletResponse) servletResponse;

    response.setHeader("Access-Control-Allow-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");

    filterChain.doFilter(servletRequest, servletResponse);
}

@Override
public void destroy() {

}
}

要从oauth2获取access_token，我从angularjs创建了以下对象： -

To get the access_token from oauth2 I have created following object from angularjs:-

 {"url":"http://localhost:8080/oauth/token?grant_type=client_credentials&client_id=clientId&client_secret=clientSecret","headers":{"Authorization":"Basic token_value"},"withCredentials":true,"method":"POST"}

我正在关注当我点击服务器时出错： -

I am getting following error when I hit the server:-

OPTIONS url... 401() Response for preflight has invalid HTTP status code 401

我已经找到了堆栈溢出中类似问题的解决方案，但没有一个解决我的问题。可能有人请帮忙吗？

I have looked for the solutions for similar problems in stack overflow but none of them fixed my problem.Could someone please help on this?

推荐答案

请阅读更多关于预检请求s 。

如果服务器支持跨源请求，他们只会建议浏览器。对此类 OPTIONS 请求的响应应该是好的（即<400）。

They simply suggest the browser if the server supports a cross-origin request. The response to such OPTIONS requests should good (i.e. < 400).

我认为语句 filterChain.doFilter（servletRequest，servletResponse）; 正在进一步传递请求，而不是返回响应。

I think the statement filterChain.doFilter(servletRequest, servletResponse); is passing the request further, instead of returning a response.

您可以阅读更多关于在Java中使用Spring启用CORS 使用Spring Framework为OPTIONS请求启用CORS

You can read more about enabling CORS using Spring in Java here Enable CORS for OPTIONS request using Spring Framework

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