不允许使用 Gulp、Restangular、Java EE 和 Wildfly 8 访问 Origin 'http://localhost:8888'

Question

Restangular 在 post() 或 get() 上运行良好，但如果我想删除某些内容，则会出现以下错误：

No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost:8888' is therefore not allowed access.

我试过这个网站上的解决方案：

How to enable Cross domain requests on JAX-RS web services?

@Provider
public class CORSFilter implements ContainerResponseFilter {

    @Override
    public void filter(final ContainerRequestContext requestContext,
                       final ContainerResponseContext cres) throws IOException {

        cres.getHeaders().add("Access-Control-Allow-Origin", "*");
        cres.getHeaders().add("Access-Control-Allow-Headers", "origin, content-type, accept, authorization");
        cres.getHeaders().add("Access-Control-Allow-Credentials", "true");
        cres.getHeaders().add("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS, HEAD");
        cres.getHeaders().add("Access-Control-Max-Age", "1209600");
    }

}

但是我得到了以下错误：

The 'Access-Control-Allow-Origin' header contains multiple values 'http://localhost:8888, *', but only one is allowed. Origin 'http://localhost:8888' is therefore not allowed access.

我不太明白这个错误是什么意思，我该如何解决？谢谢！

localhost:8888定义在Gulp中。

Answer 1

'Access-Control-Allow-Origin' header 必须是 'http://localhost:8888'

在帖子的第二个回答中解释的很好：
Why is jquery's .ajax() method not sending my session cookie?

Answer 2

我们在 web.xml 中添加了这些代码，它解决了问题：

<init-param>
            <param-name>cors.supportedMethods</param-name>
            <param-value>GET, POST, HEAD, PUT, DELETE</param-value>
</init-param>

不允许使用 Gulp、Restangular、Java EE 和 Wildfly 8 访问 Origin 'http://localhost:8888'

Origin 'http://localhost:8888' is not allowed access with Gulp, Restangular, Java EE and Wildfly 8

javascript

java

wildfly

restangular

gulp