package three_part;import java.awt.BorderLayout;import java.awt.Container;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;import javax.swing.JScrollPane;import javax.swing.JTextArea;public class ServerUI extends JFrame{ //界面类 JTextArea mainArea; JTextArea sendArea; SvrCom server; public ServerUI(){ super("服务器端"); Container contain =getContentPane(); contain.setLayout(new BorderLayout()); mainArea = new JTextArea(); JScrollPane mainAreaP= new JScrollPane(mainArea); JPanel panel =new JPanel(new BorderLayout()); sendArea =new JTextArea(3,8); JButton sendBtn = new JButton("发送"); sendBtn.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e) { server.sendMsg(sendArea.getText()); mainArea.append("【服务器】"+sendArea.getText()+"\n"); sendArea.setText(""); } }); JPanel tmpPanel=new JPanel(); tmpPanel.add(sendBtn); panel.add(tmpPanel,BorderLayout.EAST); panel.add(sendArea,BorderLayout.CENTER); contain.add(mainAreaP,BorderLayout.CENTER); contain.add(panel,BorderLayout.SOUTH); setSize(500,300); setVisible(true); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } public static void main(String[]agrs){ ServerUI ui= new ServerUI(); SvrCom svrCom= new SvrCom(ui); }public void setServer(SvrCom svrCom) { this.server = svrCom; }}package three_part;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
public class SvrCom { //通讯类
Socket client;
ServerSocket soc;
BufferedReader in;
PrintWriter out;
ServerUI ui;
public SvrCom(ServerUI ui) {
this.ui=ui;
ui.setServer(this);
try {
soc = new ServerSocket(8888);
System.out.println("启动");
client= soc.accept();
System.out.println("连接成功");
in=new BufferedReader(new InputStreamReader(client.getInputStream()));
out=new PrintWriter(client.getOutputStream(),true);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void run(){
String msg="";
while(true){
try {
msg=in.readLine();
} catch (IOException e) {
e.printStackTrace();
}
if(msg!=null&&msg.trim()!=""){
System.out.println("> >"+msg);
ui.mainArea.append(msg+"\n");
}
}
}
public void sendMsg(String msg){
try{
out.println("[【服务器】"+msg);
}catch(Exception e){
System.out.println(e);
}
}
}
public void setServer(SvrCom svrCom) { this.server = svrCom; }这个是将server实例化吗？ 如果不是，加粗下划线得那一段是怎么实现？？
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