直接代码不多说！
服务端：
package scoket.file.server;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.*;;
public class FileServer {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
ServerSocket server = new ServerSocket(8888);
Socket socket = new Socket();
while(true){
socket = server.accept();
InputStream is = socket.getInputStream();
OutputStream os = socket.getOutputStream();
byte[] b = new byte[1024];
//1、得到文件名
int a = is.read(b);
String filename = new String(b, 0, a);
System.out.println("接受到的文件名为："+filename);
String houzhui = filename.substring(filename.indexOf("."), filename.length());
String rand = String.valueOf((int) (Math.random() * 100000));
filename = rand+houzhui;
System.out.println("新生成的文件名为:"+filename);
FileOutputStream fos = new FileOutputStream("f:\\"+filename);
int length = 0;
while((length=is.read(b))!=-1){
//2、把socket输入流写到文件输出流中去
fos.write(b, 0, length);
}
//fos.flush();
fos.close();
os.flush();
os.close();
is.close();
socket.close();
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
客户端
package scoket.file.client;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;
public class FileCilent {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Socket client = new Socket("192.168.3.28", 8888);
InputStream is = client.getInputStream();
OutputStream os = client.getOutputStream();
String filepath="e:\\MyServer.java";
File file = new File(filepath);
String filename = file.getName();
System.out.println("send's file name:"+filename);
//1、发送文件名
os.write(filename.getBytes());
FileInputStream fis = new FileInputStream(file);
byte[] b = new byte[1024];
int length = 0;
while((length=fis.read(b))!=-1){
//2、把文件写入socket输出流
os.write(b, 0, length);
}
os.close();
fis.close();
is.close();
System.out.println("send over");
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}