CORS - Java 和 Java 脚本

Question

我在 UI 中遇到了典型的 Cors 错误。出于测试原因，我想完全禁用它。我觉得奇怪的是我得到了 200 并且我可以在 Chrome 调试的响应中看到 "Hello World" 但我得到：

Access to XMLHttpRequest at 'http://localhost:8101/app/services/rest/user' from origin 'http://localhost:8000' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

我有这个豆子

 <jaxrs:server id="processServices" address="/">
    <jaxrs:serviceBeans>
       <ref bean="userServiceBean"/>
    </jaxrs:serviceBeans>
 </jaxrs:server>

 <bean id="userServiceBean" class="com.package.services.UserService"/>

以及基本服务：

@Service("processUserService")
public class UserService {

    @GET
    @Path("/user")
    public String getUser() {
        return "Hello World"
    }
}

我在 Whosebug 上看到他们告诉我要使用

import java.io.IOException;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.ext.Provider;

@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");
   }
}

但是还是一样的错误。我调试了，这个方法没有被调用。

我在这里错过了什么？？

Answer 1

您需要在您的服务器上注册此提供商。

类似于：

<jaxrs:server id="processServices" address="/">
    <jaxrs:serviceBeans>
       <ref bean="userServiceBean"/>
    </jaxrs:serviceBeans>
    <jaxrs:providers>
        <ref bean="corsfilterProvider" />
    </jaxrs:providers>
 </jaxrs:server>

 <bean id="corsfilterProvider" class="your.filters.full.name"/>
 <bean id="userServiceBean" class="com.package.services.UserService"/>

CORS - Java 和 Java 脚本

CORS - Java and Javascript

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