网络编程应用：基于TCP协议【实现对象传输】--练习

要求：

基于TCP协议实现，客服端向服务器发送一个对象 服务器接受并显示用户信息 ，同时返回给客户端 "数据已收到" 建一个Student类，属性：name age

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Student类

package Homework3; import java.io.Serializable; public class Student implements Serializable { private static final long serialVersionUID = 1L; private String name; private int age; private String sex; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getSex() { return sex; } public void setSex(String sex) { this.sex = sex; } @Override public String toString() { return "Student [name=" + name + ", age=" + age + ", sex=" + sex + "]"; } public Student(String name, int age, String sex) { super(); this.name = name; this.age = age; this.sex = sex; } public Student() { super(); } }

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客户端：

package Homework3; import java.io.IOException; import java.io.InputStream; import java.io.ObjectOutputStream; import java.io.OutputStream; import java.net.Socket; public class Client { public static void main(String[] args) { System.out.println("客户端已启动！"); //1.创建要传输的Student对象 Student student=new Student("吴德利", 30, "女"); Socket socket=null; OutputStream os=null; InputStream is=null; ObjectOutputStream oos=null; byte[] b=new byte[1024]; try { //2.创建Socket对象，并得到相应的输出流----以及创建对象流 socket=new Socket("localhost", 9999); os=socket.getOutputStream(); oos=new ObjectOutputStream(os); //3.将对象发送给服务器 oos.writeObject(student); //4.接收服务器端传输完毕，返回的回复 is=socket.getInputStream(); is.read(b); String string=new String(b); System.out.println(string); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally { if(os!=null){ try { os.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(is!=null){ try { is.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(socket!=null){ try { socket.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(oos!=null){ try { oos.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } }

服务器端：

package Homework3; import java.io.IOException; import java.io.InputStream; import java.io.ObjectInputStream; import java.io.OutputStream; import java.net.ServerSocket; import java.net.Socket; public class Server { public static void main(String[] args) { System.out.println("服务器端已启动！"); ServerSocket serverSocket=null; Socket socket=null; ObjectInputStream ois=null; OutputStream os=null; InputStream is=null; try { //1.创建ServerSocket对象，获得Socket对象以及输入 serverSocket=new ServerSocket(9999); socket=serverSocket.accept(); is=socket.getInputStream(); //2.创建对象流 ois=new ObjectInputStream(is); //3.接收数据，并将接收的对象转为原来的对象类型 Student student=(Student)ois.readObject(); System.out.println(student); //4.返回给客户端，"数据已收到" os=socket.getOutputStream(); os.write("数据已收到".getBytes()); os.flush(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (ClassNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); }finally{ if(serverSocket!=null){ try { serverSocket.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(socket!=null){ try { socket.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(os!=null){ try { os.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(is!=null){ try { is.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } if(ois!=null){ try { ois.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } } }

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运行结果：

客户端：

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服务器端：