socket的UDP传输文件java源代码

//发送端SocketSendFile.java  
import java.io.*;  
import java.net.*;  

public class SocketSendFile {  
public static final int SER_PORT=666;  
public static final int CLI_PORT=8484;  
public static final String SER_IP="192.168.0.35";  
public static int bufSize = 1024;  
public static byte] mess = new bytebufSize];  
//建立Socket引用  
public static DatagramSocket dp;  

public static void main(String] args) throws Exception {  
dp = new DatagramSocket(SER_PORT);  
//调用构造函数SocketSendFile,并传递参数args0](所要传输的文件名)  
SocketSendFile(args0]);  
}  

public static void SocketSendFile(String file2) throws Exception {  
//定义一个计数器  
int pos =0;  
//设置写入流  
FileInputStream fis = new FileInputStream(file2);  
BufferedInputStream bis = new BufferedInputStream(fis);  
DataInputStream dis = new DataInputStream(bis);  

int i;  
do {  
i = dis.read();  
int j=0;  
while (j<1024 & i != -1) {  
messpos++] = (byte) i;  
i=dis.read();  
j++;  
}  
dp.send(new DatagramPacket(mess,pos,InetAddress.getByName(SER_IP),CLI_PORT));  
}  
while (i != -1);  
fis.close();  
}  
}  

//接收端SocketReceiveFile.java  
import java.net.*;  
import java.io.*;  

public class SocketReceiveFile {  
public static int bufSize=1024;  
public static byte] mess=new bytebufSize];  
public static DatagramSocket dp;  
public static final int SER_PORT=8484;  

public static void main(String] args) throws Exception {  
dp = new DatagramSocket(SER_PORT);  
SocketReceiveFile(args0]);  
}  

public static void SocketReceiveFile(String file1) throws Exception {  
FileOutputStream fos = new FileOutputStream(file1);  
BufferedOutputStream bos = new BufferedOutputStream(fos);  
DataOutputStream dos = new DataOutputStream(bos);  

int i;  
DatagramPacket p = new DatagramPacket(mess,mess.length);  

while(true) {  
boolean j=false;  
while (p.getData().length != 0) {  
dos.write(p.getData());  
dp.receive(p);  
j=true;  
}  
// System.out.println(new String(p.getData(),0,p.getLength()));  
if (j)  
System.out.println("文件传送完毕．");  
}  
// fos.close();  
}  
}