1 
HttpURLConnection uc = null ;
URLPath = "";
URL url = new URL(URLPath);
uc = (HttpURLConnection) url.openConnection();
uc.setReadTimeout(10000);
uc.connect();
FileOutputStream fos = new FileOutputStream(savePath);
InputStream in = uc.getInputStream();
byte[] buffer = new byte[1024];
int Length = 0;
long FinishedLenth = 0;

while((Length = in.read(buffer)) > 0) {
    FinishedLenth = FinishedLenth + Length;
    fos.write(buffer, 0, Length);
}
uc.disconnect();
in.close();
fos.close();

这是我的功能代码，如果网络断开，
代码将出现异常。
我将重试函数写入异常。
userValue = 0，表示重试，1 表示取消。 

int userValue = gm.GetIt("Error");
if(userValue == 0){
 gp.interrupt();
 uc.disconnect();
 downloadFile(local,nas,ip,id,pw,fileId,index);
}
else{
 conf.downloadState.get(index).setpercent("fail");
 return false;
}

你好，我有麻烦。
我写代码，功能是下载。
如果网络断开，用户可以选择重试或取消。
但我收到错误消息。 

java.net.SocketTimeoutException: Read timed out  
    at java.net.SocketInputStream.socketRead0(Native Method)  
    at java.net.SocketInputStream.read(Unknown Source)  
    at java.io.BufferedInputStream.fill(Unknown Source)  
    at java.io.BufferedInputStream.read1(Unknown Source)  
    at java.io.BufferedInputStream.read(Unknown Source)  
    at sun.net.www.MeteredStream.read(Unknown Source)  
    at java.io.FilterInputStream.read(Unknown Source)  
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)  
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)  
    at Download_File.downloadFile(Download_File.java:54)  
    at downloadFileFunctionThread.run(downloadFileFunctionThread.java:113)

第 54 行是 while(......)。

4

2 回答 2

0

尝试设置Connectiontimeout并HttpURLConnection尝试重新设计您的 while 循环，例如：

//...
boolean connected = false;
boolean retry = false;

while(!connected & retry) {
    retry = askUserIfHeWantsToRetry();
    connected = uc.connected();
    URL url = new URL(URLPath);
    uc = (HttpURLConnection) url.openConnection();
    uc.setReadTimeout(10000);
    uc.connect();
}
//...
于 2013-01-15T08:21:12.967 回答
0

检查你的java参数

它也可以设置如下

-Dsun.net.client.defaultConnectTimeout=12345 -Dsun.net.client.defaultReadTimeout=67890

于 2013-01-15T08:32:20.320 回答