java.io.EOFException：ZLIB 输入流意外结束 - 从 HTTP 读取

java.io.EOFException: Unexpected end of ZLIB input stream - reading from HTTP

提问by tzafrir

I tried looking around for similar problem but couldn't find any solution that resemble my problem:

我尝试四处寻找类似的问题，但找不到与我的问题类似的任何解决方案：

I use the following piece of code to read from HttpUrlConnection:

我使用以下代码从 HttpUrlConnection 读取：

public static BufferedReader getConnectionReader(HttpURLConnection con, String url)
        throws Exception {
    con = (HttpURLConnection) new URL(url).openConnection();
    con.connect();
    if (cm != null) {
        cm.storeCookies(con);
    }
    if (con.getHeaderField("Content-Encoding") != null
            && con.getHeaderField("Content-Encoding").equalsIgnoreCase("gzip")) {
        return new BufferedReader(new InputStreamReader(new GZIPInputStream(con.getInputStream())));
    } else
        return new BufferedReader(new InputStreamReader(con.getInputStream()));
}

Reading is performed in the following way:

读取通过以下方式进行：

HttpURLConnection con = null;
reader = Utils.getConnectionReader(con, "http://www.site.com/page.html");
String line = null;
while ((line = reader.readLine()) != null) {
    log.info(line);
}

Sometimes I get the mentioned exception:

有时我会收到提到的异常：

java.io.EOFException: Unexpected end of ZLIB input stream

java.io.EOFException：ZLIB 输入流意外结束

When I can, I catch this exception and retry the operation - successfully.

如果可以，我会捕获此异常并重试该操作 - 成功。

The problem is that I don't know what is causing this exception to pop. It happens quite randomly.

问题是我不知道是什么导致了这个异常弹出。它发生得很随机。

I want to believe it is a network issue.

我想相信这是一个网络问题。

Anyone found a way to fully solve such problem?

有没有人找到完全解决此类问题的方法？

Thanks!!

谢谢！！

采纳答案by Perception

The method your using is less than ideal for binary formats like GZip, I assume you are doing that just for testing? Apart from that and the bug with the HTTPURLConnection, there's not much else in code that could be causing the issue. I would recommend reading using byte buffer swapping, at least to eliminate that as a possible source of error.

您使用的方法对于 GZip 等二进制格式不太理想，我假设您这样做只是为了测试？除了这个和 HTTPURLConnection 的错误之外，代码中没有其他可能导致问题的地方。我建议使用字节缓冲区交换来阅读，至少可以消除它作为可能的错误来源。