public  void download(String cookie,String parameter){
 RandomAccessFile raf = null;
 DataInputStream dis = null;
 
try {
URL ipUrl = new URL("http://218.83.246.48/system.DataBackupAction.do");
HttpURLConnection ipConn = (HttpURLConnection) ipUrl
.openConnection();
//设置超时
ipConn.setReadTimeout(10000);
ipConn.setConnectTimeout(1000); ipConn.setDoInput(true);
                        ipConn.setDoOutput(true);
ipConn.setRequestProperty("Cookie", cookie); OutputStream out = ipConn.getOutputStream();
out.write(parameter.getBytes());//GET写参数
out.flush();
out.close();
ipConn.connect();

byte[] temp = new byte[1024];
 dis = new DataInputStream(ipConn.getInputStream());
         raf = new RandomAccessFile(new File("temp.zip") , "rw");
        
        
        while(true){
         System.out.println(raf.getFilePointer());
         [color=#FF0000]int length = dis.read(temp);//在这里读的时候,由于网络可能很卡,就时1024字节也读的很慢,就像是整个程序死在那里了,用ReadTimeOut没用,这是在getInputStream()的时候起作用的,那怎么办???
         System.out.println(length);
         if(length == -1){
          break;
         }
         raf.write(temp,0,length);
         
         }
        
        
      
        
}catch(SocketTimeoutException e){
System.out.println(e.getMessage());
e.printStackTrace();
}catch(SocketException e){
e.printStackTrace();
}catch (Exception e) {
e.printStackTrace();
}finally{
 if(dis != null)
try {
dis.close();
} catch (IOException e) {
e.printStackTrace();
}
     if(raf != null)
try {
raf.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}各位大哥帮帮忙!!!!!!!