如何在响应上调用 readEntity 两次? [英] How to call readEntity on a Response twice?

问题描述

我现在正在做的事情导致:

What I'm doing right now is resulting in a:

java.io.IOException: stream is closed

在第二次 readEntity() 上，因为它在第一次读取后关闭了流.

on the 2nd readEntity() since it closes the stream after the first read.

这是我正在做的:

Response response = target.queryParam("start", startIndex)
   .queryParam("end", end)
   .request()
   .accept(MediaType.APPLICATION_XML)
   .header(authorizationHeaderName, authorizationHeaderValue)
   .get();

String xml = response.readEntity(String.class);
ourLogger.debug(xml);


MyClass message = response.readEntity(MyClass.class); //throws IOException

推荐答案

/您可以使用 Response#bufferEntity()，这将允许您多次读取实体流.

/You can use Response#bufferEntity(), which will allow you to read the entity stream multiple times.

Response response = ...
response.bufferEntity();
String s = response.readEntity(String.class);
MyEntity me = response.readEntity(MyEntity.class);
response.close();

更新

在您使用 readEntity() 读取实体后，读取结果将被缓存并可通过调用 getEntity() 获得.此信息并没有真正回答 OP 的问题，但我认为这是添加的有用信息.

Update

After you read the entity with readEntity(), the result of the reading is cached and is available with the call to getEntity(). This information doesn't really answer the OP's question, but I thought it was useful information to add in.

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