java当我使用HttpClient时，为什么我的数据流会意外结束？

Question

这个问题似乎只出现在我试图发布的“大”文件中

我的代码如下所示：

PostMethod method = new PostMethod(url);

File input = new File(filePathname);
RequestEntity entity = new FileRequestEntity(input, "text/xml; charset=ISO-8859-1");

method.setRequestEntity(entity);
method.setRequestHeader("Content-Disposition", "attachment; filename=xyzzy")

HttpClient client = new HttpClient();
Credentials defaultcreds = new UsernamePasswordCredentials("userid", "pw");

client.getState().setCredentials(new AuthScope("hostname", port, AuthScope.ANY_REALM), defaultcreds);

 try {
    int statusCode = client.executeMethod(method);

    if (statusCode != HttpStatus.SC_OK) {
        throw new Exception("Method failed: " + method.getStatusLine());
    }

    // Read the response body.
    byte[] responseBody = method.getResponseBody();
    return new String(responseBody);
 }
 catch (HttpException e) {
    System.err.println("Fatal protocol violation: " + e.getMessage());
    throw e;

 }
 catch (IOException e) {
    System.err.println("Fatal transport error: " + e.getMessage());
    throw e;

 }
 finally {
     // Release the connection.
     method.releaseConnection();
 }

异常文本如下所示：

Fatal transport error: chunked stream ended unexpectedly
Exception in thread "main" java.io.IOException: chunked stream ended unexpectedly
    at org.apache.commons.httpclient.ChunkedInputStream.getChunkSizeFromInputStream(ChunkedInputStream.java:252)
    at org.apache.commons.httpclient.ChunkedInputStream.nextChunk(ChunkedInputStream.java:221)
    at org.apache.commons.httpclient.ChunkedInputStream.read(ChunkedInputStream.java:176)
    at java.io.FilterInputStream.read(FilterInputStream.java:127)
    at org.apache.commons.httpclient.AutoCloseInputStream.read(AutoCloseInputStream.java:108)
    at java.io.FilterInputStream.read(FilterInputStream.java:101)
    at org.apache.commons.httpclient.AutoCloseInputStream.read(AutoCloseInputStream.java:127)
    at org.apache.commons.httpclient.HttpMethodBase.getResponseBody(HttpMethodBase.java:690)

无论使用getResponseBody（）还是getResponseBodyAsStream（），我都会遇到类似的异常

我不应该得到太多的数据，但我发布了超过200mb的数据

Answer 1

可能老了，可以节省一些时间。。。。。 我遇到了一个错误，服务器是Python，Clinet是Java

1-

Error from Java Client "Error while sending data over http java.io.IOException: CRLF expected at end of chunk: 79/82 java.io.IOException: CRLF expected at end of chunk: 79/82"

第二-

Error from Java Clinet "Error while sending data over http java.io.IOException: chunked stream ended unexpectedly java.io.IOException: chunked stream ended unexpectedly"

这两个错误都通过使用分块流大小更改ok响应得到解决

一个有问题

HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nTransfer-Encoding: chunked\r\nServer: Jetty(6.1.26)\r\n\r\nDE\r\n

决议如下：

HTTP/1.1 200 OK\r\nContent-Length: 20000\r\nContent-Type: application/json\r\nTransfer-Encoding: chunked\r\nServer: Jetty(6.1.26)\r\n\r\n229\r\n

注=nDE替换为n229

Answer 2

我可以通过改变PostMethod的requestHeader中指定的文件名值的长度来解决这个问题。我在请求头中包含了完整文件路径名的编码版本。通过反复试验，我发现我“发布”的文件的成败似乎取决于它所在的文件夹。一个长文件夹文件路径名不起作用，而一个短文件夹文件路径名（尽管与同一个文件）起作用。所以我从请求头中删除了路径名，只开始包含文件名，我不再看到问题