package com.wuming.lesson02;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
public class TcpServerDemo02 {
public static void main(String[] args) throws Exception {
//1.创服务
ServerSocket serverSocket = new ServerSocket(9000);
//2.监听客户端连接
Socket socket = serverSocket.accept();//阻塞式监听，一直等待客户端连接
//3.获取输入流
InputStream is = socket.getInputStream();
//4.文件输出
FileOutputStream fos = new FileOutputStream(new File("receive2.jpg"));//自动生成图片
byte[] buffer = new byte[1024];
int len;
while((len=is.read(buffer))!=-1){
fos.write(buffer,0,len);
}
//通知客户端我接受完毕了
OutputStream os = socket.getOutputStream();
os.write("我接受完毕了，你可以断开了".getBytes());
//关闭资源
fos.close();
is.close();
socket.close();
serverSocket.close();
}
}
===========================
package com.wuming.lesson02;
import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
public class TcpClientDemo02 {
public static void main(String[] args) throws Exception {
//1.创Socket连接
Socket socket = new Socket(InetAddress.getByName("127.0.0.1"),9000);
//2.创输出流
OutputStream os = socket.getOutputStream();
//3.读取文件
FileInputStream fis = new FileInputStream(new File("wg.jpg"));//图片放入src同级路径
//4.写文件
byte[] buffer = new byte[1024];
int len;
while((len=fis.read(buffer))!=-1){
os.write(buffer,0,len);
}
//通知服务器，我已经结束了
socket.shutdownOutput();//我已经传输完了
//确定服务器接受完毕，才断开
InputStream inputStream = socket.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
byte[] buffer2 = new byte[1024];
int len2;
while((len2=inputStream.read(buffer2))!=-1){
baos.write(buffer2,0,len2);
}
System.out.println(baos.toString());
//5.关闭资源
baos.close();
inputStream.close();
fis.close();
os.close();
socket.close();
}
}
=================
先启动服务端，在启动客户端，控制台输出：
在src同级路径生成一个图片
?
?
