Question

我知道有一种方法可以在Jersey的ContainerRequestFilter类中获取URL。

是否有一种方法可以从aroundWriteTo方法中的writerInterceptor获取URL？

@Provider
public class RequestClientWriterInterceptor implements WriterInterceptor {

@Override
public void aroundWriteTo(WriterInterceptorContext context) 
  throws IOException, WebApplicationException {
    context.getOutputStream()
      .write(("Message added in the writer interceptor in the client side").getBytes());

    context.proceed();
}
}

Answer 1

您还可以使用新的标题名称发送URL，然后使用getHeaders获取特定的标题：

 MultivaluedMap<String,Object> headers = context.getHeaders();

Answer 2

您只需将UriInfo注入拦截器即可。您可以从该对象获取所需的所有与URI相关的东西。

@Provider
public class RequestClientWriterInterceptor implements WriterInterceptor {

    @Context
    private UriInfo uriInfo;
}

您不必担心任何竞争条件或任何此类情况，因为将注入线程本地代理，而不是实际的对象。

Answer 3

我通过从上下文属性中检索HttpChannel，然后从HttpChannel获取请求来获得URL。请参阅以下...。

@Override
public void aroundWriteTo(WriterInterceptorContext context) 
  throws IOException, WebApplicationException {

    HttpChannel httpChannel = (HttpChannel) context.getProperty(HttpChannel.class.getName());
    String url = httpChannel.getRequest().getOriginalURI());

    context.getOutputStream()
      .write(("Message added in the writer interceptor in the client side").getBytes());

    context.proceed();
}

从Jersey WriterInterceptor获取URL

3 个答案: