socket传出json格式报文

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;
import net.sf.json.JSONObject;
public class Server_2 {
public static void main(String[] args) {
Scanner in=new Scanner(System.in);
InputStreamReader isr;
BufferedReader br;
OutputStreamWriter osw;
BufferedWriter rw;
try {
ServerSocket serverSocket=new ServerSocket(4444);
Socket socket=serverSocket.accept();
isr=new InputStreamReader(socket.getInputStream());
br=new BufferedReader(isr);
String str=br.readLine();
JSONObject object=JSONObject.fromObject(str);
System.out.println("ID:"+object.getInt("ID"));
System.out.println("Name:"+object.getString("name"));
System.out.println("password:"+object.getString("password"));
br.close();
socket.close();
serverSocket.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}

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客服端

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.util.Scanner;
import net.sf.json.JSONObject;
public class Client_2 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
InputStreamReader isr;
BufferedReader br;
OutputStreamWriter osw;
BufferedWriter rw;
try {
Socket socket = new Socket("localhost", 4444);
osw = new OutputStreamWriter(socket.getOutputStream());
rw = new BufferedWriter(osw);
User user = new User();
System.out.println("Id:");
user.setID(in.nextInt());
in.nextLine();
System.out.println("Name:");
user.setName(in.nextLine());
System.out.println("Password:");
user.setPassword(in.nextLine());
JSONObject jsonObject = JSONObject.fromObject(user);
rw.write(jsonObject.toString()+"n");
rw.close();
socket.close();
} catch (Exception e) {
// TODO: handle exception
}
}
}

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User

public class User {
int ID;
String name;
String password;
public int getID() {
return ID;
}
public void setID(int iD) {
ID = iD;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}

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