[GitHub] [dubbo] fengcunhan commented on issue #8738: [3.0] Attachment is lost when calling without registry

[GitBox <gi...@apache.org>]

fengcunhan commented on issue #8738:
URL: https://github.com/apache/dubbo/issues/8738#issuecomment-916780084


   你使用错了API，如果要获取服务器端带来的参数，应该使用RpcContext.getServerContext()
   
   `public void attachmentTest() {
           final String key = "user-attachment";
           final String value = "attachment-value";
           RpcContext.removeClientAttachment();
           RpcContext.getClientAttachment().setAttachment(key, value);
           delegate.greetWithAttachment(GreeterRequest.newBuilder().setName("meta").build());
           final String returned = (String) RpcContext.**getServerContext**().getObjectAttachment(key);
           Assert.assertEquals(value, returned);
       }`


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