Question

java代码TCP/IP网络通信服务器客户端，实现双方信息交互。

Answer 1

package com.weixin.test;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

import org.junit.Test;

public class ScoketTest {
	
	@Test
	public void client() throws Exception{
		
		InetAddress i=InetAddress.getByName("127.0.0.1");
		
		
		Socket s=new Socket(i, 9000);
		
		OutputStream outputStream = s.getOutputStream();
		
		outputStream.write("服务端你好,我是客户端哦!".getBytes());
		
		s.shutdownOutput();
		InputStream inputStream=s.getInputStream();
		
		int length=0;
		
		byte[] bytes=new byte[1024];
		
		while ((length=inputStream.read(bytes))!=-1) {
			System.err.println(new String(bytes,0,length));
		}
		
		inputStream.close();
		outputStream.close();
		s.close();
	}
	
	
	@Test
	public void server() throws Exception{
		
		ServerSocket serverSocket=new ServerSocket(9000);
		
		Socket socket = serverSocket.accept();
		
		InputStream inputStream = socket.getInputStream();
		
		OutputStream outputStream = socket.getOutputStream();
		
		int length=0;
		
		byte[] bytes=new byte[1024];
		
		while ((length=inputStream.read(bytes))!=-1) {
			System.err.println(new String(bytes, 0,length));
		}
		
		outputStream.write("客户端你好，本王已收到!".getBytes());
		
		outputStream.close();
		inputStream.close();
		socket.close();
		serverSocket.close();
		
		
		
		
	}

}

Answer 2

package com.weixin.test;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;

import org.junit.Test;

public class ScoketTest {

@Test
public void client() throws Exception{

InetAddress i=InetAddress.getByName("127.0.0.1");

Socket s=new Socket(i, 9000);

OutputStream outputStream = s.getOutputStream();

outputStream.write("服务端你好,我是客户端哦!".getBytes());

s.shutdownOutput();
InputStream inputStream=s.getInputStream();

int length=0;

byte[] bytes=new byte[1024];

while ((length=inputStream.read(bytes))!=-1) {
System.err.println(new String(bytes,0,length));
}

inputStream.close();
outputStream.close();
s.close();
}

@Test
public void server() throws Exception{

ServerSocket serverSocket=new ServerSocket(9000);

Socket socket = serverSocket.accept();

InputStream inputStream = socket.getInputStream();

OutputStream outputStream = socket.getOutputStream();

int length=0;

byte[] bytes=new byte[1024];

while ((length=inputStream.read(bytes))!=-1) {
System.err.println(new String(bytes, 0,length));
}

outputStream.write("客户端你好，本王已收到!".getBytes());

outputStream.close();
inputStream.close();
socket.close();
serverSocket.close();

}

}

Answer 3

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