loglisten.java

QQ聊天

package com.sato.server.logmanager;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

import javax.swing.JOptionPane;

public class Loglisten implements ActionListener{

	/**
	 * 
	 */
	private LogJp log;
	public Loglisten(LogJp log) {
		this.log=log;
	}
	public void actionPerformed(ActionEvent e) {
		// TODO Auto-generated method stub
		log.getHistoryLog().setText(null);
		if(e.getActionCommand().equals("查询")){
			FileReader fr=null;
			BufferedReader br=null;
			try {
				fr=new FileReader("./log/log.txt");
				br=new BufferedReader(fr);
				String record;
				String year=log.getYearCombox().getSelectedItem().toString();
				String month=log.getMonthCombox().getSelectedItem().toString();
				String day=log.getDayCombox().getSelectedItem().toString();
				int i=0;
				while((record=br.readLine())!=null){
					i++;
					if(record.substring(0, 4).equals(year)&&Integer.parseInt(record.substring(5, 7))==Integer.parseInt(month)
							&&Integer.parseInt(record.substring(8, 10))==Integer.parseInt(day))
					{
						log.getHistoryLog().append(record+"\n");
					}
					else{
						break;
					}
				}
				if(i==1){
					JOptionPane.showConfirmDialog(null, "没有记录", "提示",JOptionPane.DEFAULT_OPTION);
				}
			} catch (Exception e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}finally{
				try {
					fr.close();
					br.close();
				} catch (IOException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}
			}
			
		}
	}

}