用户传输协议,连接稳定,三次握手,四次挥手
服务器端代码
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;
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public class TestTCPServer {
public static void main(String[] args) {
ServerSocket serverSocket=null;
Socket accept=null;
InputStream inputStream=null;
ByteArrayOutputStream byteArrayOutputStream=null;
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try {
//建立一个服务器
serverSocket = new ServerSocket(9999);
while (true){
//开始监听
accept = serverSocket.accept();
//接收输入数据流
inputStream = accept.getInputStream();
//建立一个管道流
byteArrayOutputStream = new ByteArrayOutputStream();
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byte[] buffer=new byte[1024];
int len;
while ((len=inputStream.read(buffer))!=-1){
byteArrayOutputStream.write(buffer,0,len);
}
System.out.println(byteArrayOutputStream.toString());
}
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} catch (IOException e) {
e.printStackTrace();
}finally {
if (byteArrayOutputStream!=null){
try {
byteArrayOutputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (inputStream!=null){
try {
inputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (accept!=null){
try {
accept.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (serverSocket!=null){
try {
serverSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
客户端代码
package com.peanutist.day11;
?
import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
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public class TestTCPClient {
public static void main(String[] args) {
Socket socket=null;
OutputStream outputStream=null;
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try {
InetAddress inetAddress = InetAddress.getByName("192.168.1.104");
int port = 9999;
socket = new Socket(inetAddress,port);
outputStream = socket.getOutputStream();
outputStream.write("你好呀~".getBytes());
} catch (IOException e) {
e.printStackTrace();
}finally {
if (outputStream!=null){
try {
outputStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (socket!=null){
try {
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}
原文:https://www.cnblogs.com/peanutist/p/14507752.html