服务器
package com.shushu.net;
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import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
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public class TcpServerDemo02 {
public static void main(String[] args) throws IOException {
//1.创建服务
ServerSocket serverSocket = new ServerSocket(9000);
//2.监听客服端的连接
Socket socket = serverSocket.accept();//阻塞式监听，会一直等待客户端连接
//3.获取输入流
InputStream is = socket.getInputStream();
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//4.文件输出
FileOutputStream fos = new FileOutputStream(new File("receive.png"));
byte[] buffer = new byte[1024];
int len;
while ((len=is.read(buffer))!=-1){
fos.write(buffer,0,len);
}
//通知客户端接收完毕
OutputStream os = socket.getOutputStream();
os.write("接收完毕！".getBytes());
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//5.关闭资源
fos.close();
socket.close();
serverSocket.close();
is.close();
}
}
客户端
package com.shushu.net;
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import java.io.*;
import java.net.InetAddress;
import java.net.Socket;
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public class TcpClientDemo02 {
public static void main(String[] args) throws Exception {
//1.创建一个Socket连接
Socket socket = new Socket(InetAddress.getByName("127.0.0.1"),9000);
//2.创建一个输出流
OutputStream os = socket.getOutputStream();
//3.文件流
FileInputStream fis = new FileInputStream(new File("zhuomina.png"));
//4.写出文件
byte[] buffer = new byte[1024];
int len;
while ((len=fis.read(buffer))!=-1){
os.write(buffer,0,len);
}
//通知服务器我已经传输完了
socket.shutdownOutput();//我已经传输完了！
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//确定服务器接收完毕，才能断开连接
InputStream inputStream = socket.getInputStream();
//String byte[]
ByteArrayOutputStream baos = new ByteArrayOutputStream();
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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
fis.close();
os.close();
socket.close();
baos.close();
inputStream.close();
}
}