模拟qq项目中遇到的棘手问题，望前辈指教

qq_34861001 2016-05-02 09:43:13

setjuege方法中两个if中的代码为什么没有效果？

package cn.ntrj;



import java.awt.Font;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.FileWriter;

import java.io.OutputStream;

import java.io.OutputStreamWriter;

import java.io.PrintWriter;

import java.net.Socket;

import java.text.SimpleDateFormat;

import java.util.Date;



import javax.swing.DefaultListModel;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JList;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;



public class Chat2 {

	JFrame f = new JFrame();

	JTextArea show = new JTextArea();

	JTextArea input = new JTextArea();

	

	JList list = new JList();

	DefaultListModel dlm = new DefaultListModel();



	

	private Socket s;

	public void setSocket(Socket value) {

		s = value;

		System.out.println("群聊端口为：" + s);

	}

	

	private String message;

	public void setmessage(String value) {

		message = value;

		System.out.println("群聊收到的：" + message);

		show.append("\n" + message);

		//System.exit(0);

		

	}

	

	private String jugemessage;

	public void setjuge(String value) {

		jugemessage = value;

		System.out.println(jugemessage);

		String juge = jugemessage.split("/")[0];

		String user = jugemessage.split("/")[1];

		if(juge.equals("add"))

		{

			dlm.addElement(user);

		}

		else if(juge.equals("exit"))

		{

			dlm.removeElement(user);

		}

		

	}

	

	public void go()

	{

		list.setFont(new Font("微软雅黑",Font.PLAIN,30));

	    list.setModel(dlm);

	    JScrollPane scrollPane = new JScrollPane(list,

	    		JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,

        		JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

	    scrollPane.setBounds(500, 105, 180, 450);

		

		JButton send = new JButton("发送");

	    JButton cancel = new JButton("关闭");

	    send.setFont(new Font("微软雅黑",Font.PLAIN,15));

	    cancel.setFont(new Font("微软雅黑",Font.PLAIN,15));

	    

	    send.addActionListener(new ButtonHandler());

	    cancel.addActionListener(new ButtonHandler());

	    

	    

		try {

			File f = new File("聊天记录(群聊).txt");

			FileReader fr = new FileReader(f);

			BufferedReader br = new BufferedReader(fr);

			while(br.ready())

				show.append(br.readLine() + "\n" );

		} catch (Exception e) {

			e.printStackTrace();

		}

	    show.setCaretPosition(show.getText().length());

	    

	    JLabel qunliao = new JLabel("群聊");

	    qunliao.setFont(new Font("微软雅黑",Font.PLAIN,30));

	    JLabel qunliaochengyuan = new JLabel("群聊成员");

	    qunliaochengyuan.setFont(new Font("微软雅黑",Font.PLAIN,20));

	    

	   

	    

        show.setFont(new Font("微软雅黑",Font.PLAIN,20));

        show.setLineWrap(true);

        JScrollPane SHOW = new JScrollPane(show,

        		JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,

        		JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

        

        input.setFont(new Font("微软雅黑",Font.PLAIN,20));

        input.setLineWrap(true);

        JScrollPane INPUT = new JScrollPane(input,

        		JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,

        		JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);

		

        



        

        qunliao.setBounds(10, 5, 80, 80);

        qunliaochengyuan.setBounds(500, 73, 80, 30);

	  

	    SHOW.setBounds(0, 80, 500, 300);

	    INPUT.setBounds(0, 380, 500, 175);

	    send.setBounds(390, 520, 100, 30);

	    cancel.setBounds(280, 520, 100, 30);



	    

	    f.add(qunliao);

	    f.add(qunliaochengyuan);

	 

	    f.add(send);

	    f.add(cancel);

	    f.add(SHOW);

	    f.add(INPUT);

	    f.add(scrollPane);

	    

	    f.setLayout(null);

	    f.setTitle("群聊");

	    f.setSize(700, 600);

	    f.setResizable(true);

		f.setVisible(true);

	

	}

class ButtonHandler implements ActionListener

{



	@Override

	public void actionPerformed(ActionEvent e) {

		String label = e.getActionCommand();

		if(label.equals("关闭"))

		{

			f.dispose();

		}

		if(label.equals("发送"))

		{

			SimpleDateFormat df = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");

		    show.append(df.format(new Date()) + "\n" + input.getText()+ "\n" );

		    try {

			   File f = new File("聊天记录(群聊).txt");

			   FileWriter fw = new FileWriter(f,true);

			   PrintWriter pw = new PrintWriter(fw);

			   pw.println(df.format(new Date()) + "\n" + input.getText());

			   pw.close();

		    } catch (Exception e2) {

		    	e2.printStackTrace();

		    }

			  

		    

		    try {

		    	System.out.println("!!");

				OutputStream os = s.getOutputStream();

				OutputStreamWriter osw = new OutputStreamWriter(os);

				PrintWriter pw = new PrintWriter(osw,true);

				pw.println("group chat" + "/" + new QQLogin().username + "/" + input.getText());

				System.out.println("已发送服务端");

				

			} catch (Exception e2) {

				e2.printStackTrace();

			}

		       

		}

		input.setText("");

	}

	

	

}



	

	public static void main(String[] args) {

		Chat2 chat2 = new Chat2();

		chat2.go();

	}



	



	





	



}