西农大 Java实习 实验七 网络编程 习题三

任务三：传输对象输入与输出流

现有一个Student类；

1. 程序实现：从服务器端传输一个Student对象到客户端，客户端输出该对象信息。
2. 基本要求：使用Socket类和ServerSocket类实现。

package third;

import java.io.Serializable;

public class Student  implements Cloneable,Serializable{
	private int id;
	private String name;
	private int age;
	
	public Student() {
		
	}
	
	public Student(int id, String name, int age) {
		super();
		this.id = id;
		this.name = name;
		this.age = age;
	}
	// toString()
	public String toString() {
		return "Student [id=" + id +
				", name="+ name +
				", age="+ age + "]";
	}
}

package third;

import java.io.*;
import java.net.*;


public class Server {
   public static void main(String args[]) {
	   Student s1 = new Student(1001, "Lee", 21);
		Student s2 = new Student(1003, "Zhang", 22);
		
      ServerSocket server=null;
      Socket you=null;
      DataOutputStream out=null;
      DataInputStream  in=null;
      try { server=new ServerSocket(4322);
      }
      catch(IOException e1) {
            System.out.println(e1);
      } 
      try{ System.out.println("等待客户呼叫");
           you=server.accept(); //堵塞状态，除非有客户呼叫
           System.out.println("等待客户呼叫");
           out=new DataOutputStream(you.getOutputStream());
           in=new DataInputStream(you.getInputStream());
           ObjectOutputStream ofs = new ObjectOutputStream(out);		
			ofs.writeObject(s1);
			ofs.writeObject(s2);
			ofs.close();
      }
      catch(Exception e) {
          System.out.println("客户已断开"+e);
      }
   }
}

package third;

import java.io.*;
import java.net.*;

public class Client {
   public static void main(String args[]) {
      Socket mysocket;
      DataInputStream in=null;
      DataOutputStream out=null;
      try{  mysocket=new Socket("127.0.1.1",4322);
            in=new DataInputStream(mysocket.getInputStream());
            out=new DataOutputStream(mysocket.getOutputStream()); 
            ObjectInputStream ifs = new ObjectInputStream(in);
            Student s3 = new Student();
			s3 = (Student)ifs.readObject();
			System.out.println(s3.toString());
			s3 = (Student)ifs.readObject();
			System.out.println(s3.toString());
			ifs.close();
       }
       catch(Exception e) {
            System.out.println("服务器已断开"+e);
       }
   } 
}