解决 org.apache.http.ConnectionClosedException: Premature end of chunk coded message body: closing chunk expected

异常翻译：Premature end of chunk coded message body: closing chunk expected

翻译如下：过早的关闭通过块编码的消息体:关闭块异常。

关键点在于http传输协议1.0与1.1的区别，1.1协议的内容是分块传输，response获得实体事懒加载，一块一块的获取，但是这个EntityUtils工具类的.toByteArray方法实现如下：

 public static byte[] toByteArray(final HttpEntity entity) throws IOException {

        Args.notNull(entity, "Entity");

        final InputStream instream = entity.getContent();

        if (instream == null) {

            return null;

        }

        try {

            Args.check(entity.getContentLength() <= Integer.MAX_VALUE,

                    "HTTP entity too large to be buffered in memory");

            int capacity = (int)entity.getContentLength();

            if (capacity < 0) {

                capacity = DEFAULT_BUFFER_SIZE;

            }

            final ByteArrayBuffer buffer = new ByteArrayBuffer(capacity);

            final byte[] tmp = new byte[DEFAULT_BUFFER_SIZE];

            int l;

            while((l = instream.read(tmp)) != -1) {

                buffer.append(tmp, 0, l);

            }

            return buffer.toByteArray();

        } finally {

            instream.close();

        }

    }

获取结束立马将流关闭了，但是传输还没有结束了呢，所以就出现了上面的异常信息。

解决方案，设置http传输协议版本，改为1.0，这样消息体就会一次性全部传过来；

  HttpPost post = new HttpPost(builderUrl(url, requestParams));

  post.setProtocolVersion(HttpVersion.HTTP_1_0);