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DataOutputStream outputs=null;
RandomAccessFile sendFile=null;
TelnetOutputStream outs=null;
byte[] b = new byte[2048000];
sendFile=new RandomAccessFile(FtpVariable.RWFileDir+file,"r");
sendFile.seek(0);

//µ÷ÓÃÉÏ´«ÎļþµÄÃüÁî
outs=ftpClient.put(file);

//´ò¿ªÒ»¸öÊä³öÁ÷
outputs=new DataOutputStream(outs);

while((sendFile.getFilePointer()) <sendFile.length())
{
if(sendFile.length()-sendFile.getFilePointer()>=FtpVariable.dataPacketSize)
    {
sendFile.read(b);//´ÓÎļþÖжÁ³öÊý¾Ý
outputs.write(b);//°ÑÊý¾ÝдÈëÊä³öÁ÷
      }
else
    {

sendFile.read(b,0,(int)(sendFile.length()-sendFile.getFilePointer()));
outputs.write(b);
      }
}
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BufferedOutputStream fout=null;
BufferedInputStream din=null;
byte[] buf = new byte[2048000];
fout= new BufferedOutputStream(new FileOutputStream(requestfile));
din = new BufferedInputStream(dsocket.getInputStream());
while((dataLength = din.read(buf,0,buf.length))!=-1)
{
    fout.write(buf,0,dataLength);//дÈëÎļþ
}


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