51CTO下载-Java Socket 线程实现多客户的机制以及获取ip地址

Java Socket 线程实现多客户的机制以及获取ip地址
User.java
package pb.socket.LoginStr;
import java.io.Serializable;
public class User implements Serializable{
private String loginName;
private String psw;
public User(){
}
public User(String loginName,String psw){
this.loginName=loginName;
this.psw=psw;
}
public String getLoginName() {
return loginName;
}
public void setLoginName(String loginName) {
this.loginName = loginName;
}
public String getPsw() {
return psw;
}
public void setPsw(String psw) {
this.psw = psw;
}
}
ServerThread.java
package pb.socket.LoginStr;
import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import .ServerSocket;
import .Socket;
/*
* 专门的线程类
*/
public class ServerThread extends Thread {
//和本线程相关的Socket
Socket socket=null;
public ServerThread(Socket socket){
this.socket=socket;
}
//线程启动：相应客户请求的一个过程
public void run(){
try {
//3.获得输入流
InputStream is=socket.getInputStream();
//获得流：可以对对象进行反序列化
ObjectInputStream ois=new ObjectInputStream(is); //获得输出流
OutputStream os=socket.getOutputStream();
PrintWriter pw=new PrintWriter(os);
//4.读取用户输入信息
User user = (User)ois.readObject();
System.out.println("用户信息：
"+user.getLoginName()+"---"+user.getPsw());
//给客户一个响应
String reply="welcome";
pw.write(reply);
pw.flush();
//5.关闭资源
pw.close();
os.close();
ois.close();
is.close();
socket.close();
} catch (IOException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
}
LoginServer .java
package pb.socket.LoginStr;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.ObjectInputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import .InetAddress;
import .ServerSocket;
import .Socket;
public class LoginServer {
public static void main(String[] args) {
try {
// 1.建立一个服务器Socket(ServerSocket)绑定指定端口
ServerSocket serverSocket = new ServerSocket(8800);
// 2.使用accept()方法阻止等待监听，获得新连接
Socket socket = null;
//记录客户端数量
int num=0;
// 一直处于侦听状态
while (true) {
socket=serverSocket.accept();
ServerThread serverThread=new ServerThread(socket); serverThread.run();
num++;
System.out.println("客户数量为："+num);
//获得客户端ip信息
InetAddress ia=socket.getInetAddress();
//获得ip
String ip=ia.getHostAddress();
System.out.println("客户端的ip地址："+ip);
//获得ip主机名
String name=ia.getHostName();
System.out.println("本客户的主机名："+name);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
LoginClient.java
package pb.socket.LoginStr;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import .Socket;
import .UnknownHostException;
public class LoginClient {
public static void main(String[] args) {
try {
//1.建立客户端socket连接，指定服务器位置及端口
Socket socket =new Socket("localhost",8800);
//2.得到socket读写流
OutputStream os=socket.getOutputStream();
//对象序列化流
ObjectOutputStream oos=new ObjectOutputStream(os); //输入流
InputStream is=socket.getInputStream();
BufferedReader br=new BufferedReader(new InputStreamReader(is));
//3.利用流按照一定的操作，对socket进行读写操作
User user=new User();
user.setLoginName("Afish");
user.setPsw("9393");
oos.writeObject(user);
socket.shutdownOutput();
//接收服务器的相应
String reply=null;
while(!((reply=br.readLine())==null)){
System.out.println("接收服务器的信息："+reply); }
//4.关闭资源
br.close();
is.close();
oos.close();
os.close();
socket.close();
} catch (UnknownHostException e) { e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}。