正如我在评论中提到的那样，HttpClient和JEditorPane用于获取URL内容的URLConnection彼此不对话。因此，HttpClient可能已获取的任何cookie都不会转移到URLConnection。但是，您可以像这样子类化JEditorPane：
final HttpClient httpClient = new DefaultHttpClient();JEditorPane myPane = new JEditorPane() { protected InputStream getStream(URL url) throws IOException { HttpGet httpget = new HttpGet(url.toExternalForm()); HttpResponse response = httpClient.execute(httpget); HttpEntity entity = response.getEntity(); // important! by overriding getStream you're responsible for setting content type! setContentType(entity.getContentType().getValue()); // another thing that you're now responsible for... this will be used to resolve // the images and other relative references. also beware whether it needs to be a url or string getdocument().putProperty(document.StreamDescriptionProperty, url); // using commons-io here to take care of some of the more annoying aspects of InputStream InputStream content = entity.getContent(); try { return new ByteArrayInputStream(IOUtils.toByteArray(content)); } catch(RuntimeException e) { httpget.abort(); // per example in HttpClient, abort needs to be called on unexpected exceptions throw e; } finally { IOUtils.closeQuietly(content); } }};// now you can do this!myPane.setPage(new URL("http://www.google.com/"));通过进行此更改，您将使用HttpClient来获取JEditorPane的URL内容。请确保在此处http://download.oracle.com/javase/1.4.2/docs/api/javax/swing/JEditorPane.html#getStream(java.net.URL）阅读JavaDoc
，以确保您捕获了所有JavaDoc 角落里的情况。我想我已经对它们中的大多数进行了排序，但是我不是专家。
当然，您可以在代码的HttpClient部分周围进行更改，以避免首先将响应加载到内存中，但这是最简洁的方法。而且由于您要将其加载到编辑器中，因此某个时刻它们都将保存在内存中。;）
