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Main.java
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Main.java
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import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
public class Main {
public static void main(String[] args) {
try {
ServerSocket serverSocket = new ServerSocket(12345);
while(true) {
Socket socket = serverSocket.accept();
new Thread() {
@Override
public void run() {
try {
InputStream is = socket.getInputStream();
File f = new File("saved.txt");
if(!f.exists())
f.createNewFile();
OutputStream os = new FileOutputStream(f);
//TODO 读取json格式的信息
/**
* json 格式如下:
* {"filename":"DIYdataV4.zip.02-233cccx",
* "step":"500",
* "filelength":"123123123"
* }
*
*/
byte[] buf = new byte[1024*1024];
int len = 0;
while((len=is.read(buf))>0) {
os.write(buf, 0, len);
os.flush();
}
os.close();
is.close();
System.out.println("接收完毕");
} catch (Exception e) {
e.printStackTrace();
}
}
}.start();
}
} catch (IOException e) {
e.printStackTrace();
}
}
public void receiveData(String filename,long filelength, int ip, int port) throws Exception{
String parentPath = "~/Develop/ReceiveData/";
File folder = new File(parentPath);
if(!folder.exists())
folder.mkdirs();
File saveFile = new File(parentPath+filename);
OutputStream fos = new FileOutputStream(saveFile);
Socket socket = new Socket(ip + "", port);
long sendedlength = 0;
InputStream is = socket.getInputStream();
byte[] buf = new byte[1024*1024];
int len = 0;
long currentTime = System.currentTimeMillis();
long lastTime = System.currentTimeMillis();
long remainMillsTime = 0;
while ((len = is.read(buf)) > 0) {
currentTime = System.currentTimeMillis();
sendedlength+=len;
fos.write(buf, 0, len);
remainMillsTime = (filelength-sendedlength)/(currentTime-lastTime);
lastTime = currentTime;
System.out.println(filename+" \t接收了 "+(sendedlength*1.0/1024/1024) +" Mb;"
+ "还剩:"+((filelength-sendedlength)*1.0/1024/1024)+"Mb;"
+ "估计剩余时间:"+(remainMillsTime*1.0/1000)+"秒");
fos.flush();
}
System.out.println(filename+"\t接收完毕");
is.close();
fos.close();
socket.close();
}
}