viewresult.java

一个简单的C/S模式考试系统

//本类的作用是考试系统的成绩界面可以进行成绩的浏览打印
import java.net.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.awt.print.*;


public class  ViewResult extends JFrame implements ActionListener {
  
 //public static void main(String args[]){       //测试类是否可用
 //new ViewResult();
 //
  //图形界面组件中、南的布局
  JPanel p;
 
  
    
  //中
  static JTextArea  questionArea; //显示题目内容的文本区
  //南
  
  private JButton reButton;
  private JButton exitButton; //退出按钮
  private JButton printButton;//打印按钮
  
  

  /** 构造方法：初始化面板中的图形组件*/
  public ViewResult() {
;
  //初始化面板中的图形组件
  p=new JPanel();
  setContentPane(p);
   /**初始化面板中的图形组件*/
 
	  p.setLayout(new BorderLayout());
	  
	   questionArea=new JTextArea(10,10);
      questionArea.setLineWrap(true);
	  questionArea.setWrapStyleWord(true);
	  questionArea.setFont(new Font("幼圆",Font.PLAIN,16));
	  int vScroll=ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
	  int hScroll=ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER;
	  p.add(new JScrollPane(questionArea,vScroll,hScroll),BorderLayout.CENTER);
	  //南—4个单选按钮
	  JPanel southPanel=new JPanel();
	 	 
    //初始化各按钮
    
	reButton=new JButton("刷新");
	reButton.addActionListener(this);
	exitButton=new JButton("退出");
	exitButton.addActionListener(this);
	printButton=new JButton("打印");
	printButton.addActionListener(this);
    southPanel.add(reButton);
    southPanel.add(printButton);
   
    southPanel.add(exitButton);
    
	p.add(southPanel,BorderLayout.SOUTH);
 setVisible(true);setLocation(300,200);setSize(400,400);
 setTitle("系统日志");	
    	setVisible(true);  
    	 try{BufferedReader bufReader=new  BufferedReader(new FileReader("testscore.log"));
	 String s=bufReader.readLine();questionArea.setText(s);
	 while((s=bufReader.readLine())!=null){
   questionArea.append("\n"+s);
   	
   }
   }catch(IOException e1){
   	
   }		
		//pack();//自动调整控件的大小
 
}
  


 //**按钮事件动作响应
 public void actionPerformed(ActionEvent e) {
  
  if(e.getSource()==reButton) {
	   	 try{BufferedReader bufReader=new  BufferedReader(new FileReader("testscore.log"));
	 String s=bufReader.readLine();questionArea.setText(s);
	 while((s=bufReader.readLine())!=null){
   questionArea.append("\n"+s);
   	
   }
   }catch(IOException e1){
   	
   }
   } 
   if(e.getSource()==exitButton) {
	   dispose();
   }
   if(e.getSource()==printButton){
try
{
questionArea.print();
}
catch(PrinterException pe)
{
System.err.println("打印失败...");
}
   	}
   
} }