IllegalStateException：已消耗内容 - 如何解决？ [英] IllegalStateException: Content has been consumed - How to resolve?

问题描述

我有以下代码：

HttpGet httpGet = new HttpGet(serverAdress + "/rootservices");
        httpGet.setHeader("Accept", "text/xml");
        HttpResponse response = client.execute(httpGet, localContext);

        String projectURL = XMLDocumentParser.parseDocument(response.getEntity().getContent(), "oslc_scm:scmServiceProviders", "rdf:resource");
        String workItemURL = XMLDocumentParser.parseDocument(response.getEntity().getContent(), "oslc_cm:cmServiceProviders", "rdf:resource");

这里的问题是我读了两次HttpResponse对象。所以我第二次得到例外。但是虽然我知道这个问题，但我找不到一个简单的解决方案。那么解决这个问题的好方法是什么？

The problem here is that I read two times the HttpResponse object. So the second time I get the exception. But although I know the problem, I can´t find an easy solution. So what is a good way to solve that problem?

推荐答案

读取响应返回的输入流。将getEntity（）。getContent（）转换为 byte [] ，存储在局部变量中。请参阅将InputStream转换为Java中的字节数组。

Read the input stream returned by response.getEntity().getContent() into a byte[], stored in a local variable. See Convert InputStream to byte array in Java.

byte[] content = IOUtils.toByteArray(response.getEntity().getContent());

String projectURL = XMLDocumentParser.parseDocument(new ByteArrayInputStream(content), "oslc_scm:scmServiceProviders", "rdf:resource");
String workItemURL = XMLDocumentParser.parseDocument(new ByteArrayInputStream(content), "oslc_cm:cmServiceProviders", "rdf:resource");

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