jserver.java

socket 套接字 共计算机网络实验

/*
 * JServer.java
 *
 * Created on 2008年4月8日, 下午11:38
 */



/**
 *
 * @author  Owner
 */
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.net.*;

public class JServer extends javax.swing.JFrame implements Runnable {
   Thread readThread  ;
   ServerSocket serverSock;
   public final static int DEFAULT_PORT=6666;
   PrintWriter out;
   BufferedReader in=null;
   boolean isTrue=true;  
    
    /** Creates new form JServer */
    public JServer() {
       try{
   initComponents();
  }catch(Exception e){
   e.printStackTrace();
  }
        serverListen();
    }
    
    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();
        jTextField1 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jTextArea1.setColumns(20);
        jTextArea1.setRows(5);
        jScrollPane1.setViewportView(jTextArea1);

        jButton1.setText("发送");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .addContainerGap()
                        .add(jScrollPane1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE))
                    .add(layout.createSequentialGroup()
                        .add(32, 32, 32)
                        .add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 225, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                        .add(29, 29, 29)
                        .add(jButton1)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 242, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .add(27, 27, 27)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 35, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jButton1))
                .addContainerGap(21, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
         sendInformation();// TODO add your handling code here:
    }//GEN-LAST:event_jButton1ActionPerformed
     public void processMsg(String str){//
       jTextArea1.append(str);
       jTextArea1.append("\n");
 }
    public void serverListen(){
  try{
   serverSock=new ServerSocket(DEFAULT_PORT);
  }catch(IOException e){
   processMsg(e.toString());
   processMsg("server failed!\n");
  }
  
  processMsg("server listening on port:"+DEFAULT_PORT);
 
   readThread=new Thread(this);
   readThread.start(); 
  }
    
     public void run(){
    isTrue=true;  
    String msg;
    while(isTrue){
     try{
    Socket clientSock=serverSock.accept();
    processMsg("用户访问服务器");
    in=new BufferedReader(new InputStreamReader(clientSock.getInputStream()));
    out=new PrintWriter(clientSock.getOutputStream());
    msg=in.readLine();
     if(msg!=null){
     processMsg(msg);
    }
     }    
 catch(IOException e){
    processMsg(e.toString());
   }
   }
    try{
  clientSock.close();
   in.close();
   out.close();
  }catch(IOException  ei){;} 
  //endConnect();
   
 }
public void sendInformation() 
      {
       out.println(jTextField1.getText());
       out.flush();
       }
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) 
    {
         JServer c=new JServer();
c.show();
     }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextField jTextField1;
    // End of variables declaration//GEN-END:variables
    
}