服务端
package socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
/**
*socket服务端
*
*/
public class TCPServer {
public static void main(String[] args) {
try {
// 创建一个服务端socket实例,并绑定指定端口,同时监听该端口
ServerSocket serversocket = new ServerSocket(7777);
Socket socket = null;
System.out.println("服务端已启动,正在监听......");
int count = 0;//记录客户端的数量
//循环建立客户端监听
while(true){
//调用accept()启动端口监听,等待客户端请求
socket = serversocket.accept();//监听7777端口
//创建一个新线程
ServerThread st = new ServerThread(socket);
//启动线程
st.start();
count++;
System.out.println("客户端数量"+count);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
服务端已启动,正在监听......
客户端数量1
服务端捕获到客户端信息:######用户名:admin 密码:1234
客户端数量2
服务端捕获到客户端信息:######用户名:admin 密码:1234用户名:user 密码:567
客户端一
package socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
public class TCPClient {
public static void main(String[] args) {
try {
//创建客户端socket,指定服务端地址和端口
Socket socket = new Socket("localhost", 7777);
//建立一个输出流,用于向服务端发送信息
OutputStream os = socket.getOutputStream();
//创建一个打印流并包装输出流
PrintWriter pw = new PrintWriter(os);
pw.write("用户名:admin 密码:1234");
pw.flush();//刷新缓存
//关闭资源
socket.shutdownOutput();
//创建输入流,用于读取服务端响应信息
InputStream is = socket.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String serinfo = br.readLine();
while(!"".equals(serinfo) && serinfo != null){
System.out.println("客户端获取服务端响应信息:*****"+serinfo);
serinfo = br.readLine();
}
socket.shutdownInput();
br.close();
isr.close();
is.close();
pw.close();
os.close();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
客户端二
package socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.UnknownHostException;
public class TCPClient {
public static void main(String[] args) {
try {
//创建客户端socket,指定服务端地址和端口
Socket socket = new Socket("localhost", 7777);
//建立一个输出流,用于向服务端发送信息
OutputStream os = socket.getOutputStream();
//创建一个打印流并包装输出流
PrintWriter pw = new PrintWriter(os);
pw.write("用户名:admin 密码:1234");
pw.write("用户名:user 密码:567");
pw.flush();//刷新缓存
//关闭资源
socket.shutdownOutput();
//创建输入流,用于读取服务端响应信息
InputStream is = socket.getInputStream();
InputStreamReader isr = new InputStreamReader(is);
BufferedReader br = new BufferedReader(isr);
String serinfo = br.readLine();
while(!"".equals(serinfo) && serinfo != null){
System.out.println("客户端获取服务端响应信息:*****"+serinfo);
serinfo = br.readLine();
}
socket.shutdownInput();
br.close();
isr.close();
is.close();
pw.close();
os.close();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
服务端线程处理类
package socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.net.Socket;
/**
* 服务端线程处理类
*
*/
public class ServerThread extends Thread {
// 与本线程相关的Socket
Socket socket = null;
public ServerThread(Socket socket) {
this.socket = socket;
}
//执行线程操作,响应客户端请求
@Override
public void run() {
InputStream is = null;
InputStreamReader isr = null;
BufferedReader br = null;
OutputStream os = null;
PrintWriter pw = null;
try {
is = socket.getInputStream();
isr = new InputStreamReader(is);
br = new BufferedReader(isr);
String info = br.readLine();
while(!"".equals(info) && info != null){
System.out.println("服务端捕获到客户端信息:######"+info);
info = br.readLine();
}
//关闭相关资源
socket.shutdownInput();
//服务端创建输出流,响应客户端请求
os = socket.getOutputStream();
pw = new PrintWriter(os);
pw.write("用户名密码正确,欢迎登陆");
pw.flush();
} catch (IOException e) {
e.printStackTrace();
}finally{
try {
//关闭相关资源
socket.shutdownOutput();
//关闭其他资源
if(pw != null)
pw.close();
if(os != null)
os.close();
if(br != null)
br.close();
if(isr != null)
isr.close();
if(is != null)
is.close();
if(socket != null)
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public static void main(String[] args) {
}
}