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我经常遇到 java httpurlconnections,即使使用setReadTimeOut(),它也不会在应该抛出 sockettimeoutexception 时抛出异常,并且它始终与最终(挂起 2-3 分钟后)过早的 EOF 异常相关联。我在一些博客中读到,这可能与使用 BufferedReader 的 readLine 方法 String x = ""; 读取有关。而((x=bufferedReader.readLine())!=null){}

如果输入流末尾没有换行符,则在文件末尾。这没有意义,为什么java的setTimeOut函数不正确?

       URL url=new URL("");
      c=(HttpURLConnection)url.openConnection();
      c.setReadTimeout(17000);
      BufferedReader b = new BufferedReader(new InputStreamReader(c.getInputStream()));
      String s;

      while((s=b.readLine())!=null)
      {     
          } ect.






    java.io.IOException: Premature EOF
at sun.net.www.http.ChunkedInputStream.readAheadBlocking(Unknown Source)
at sun.net.www.http.ChunkedInputStream.readAhead(Unknown Source)
at sun.net.www.http.ChunkedInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)
at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)
at sun.nio.cs.StreamDecoder.readBytes(Unknown Source)
at sun.nio.cs.StreamDecoder.implRead(Unknown Source)
at sun.nio.cs.StreamDecoder.read(Unknown Source)
at java.io.InputStreamReader.read(Unknown Source)
at java.io.BufferedReader.fill(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)
at java.io.BufferedReader.readLine(Unknown Source)

以下是响应标头(截断了确切的 cookie 信息):

     [HTTP/1.1 200 OK]
     p3p ["",""]
     x-frame-options [SAMEORIGIN]
     Date [Tue, 08 May 2012 15:01:40 GMT]
     Vary [Accept-Encoding,User-Agent]
     Transfer-Encoding [chunked]
     Set-cookie [""=""; path=/; domain=""; expires=Tue, 01-Jan-2036 08:00:01 GMT]
     Content-Type [text/html; charset=ISO-8859-1]
     Server [Server]
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1 回答 1

0

请参阅setReadTimeout的文档:

Some non-standard implementation of this method ignores the specified timeout.

如果您认为这不是问题,请将超时设置为非常低的数字,例如 1 并检查。你应该得到一个java.net.SocketTimeoutException例外。

于 2012-05-07T22:11:00.167 回答