package com.teligen.eos.teleCode;
import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.util.Date;
/** * 书写日志信息到指定的文件中 */public class WriteLogUtil {
private static String rootPath = “D:\\logs\\”; /** * 将信息写到文件中 * @param msg */ public static void writeMsgToFile(String msg) { //删除之前的文件 delOldFile(); FileWriter fileWriter = null; try { fileWriter = new FileWriter(getFileName(),true); Date today = new Date(); String time = String.valueOf(today.getHours()) + “:” + String.valueOf(today.getMinutes()) + ” ” + String.valueOf(today.getSeconds()); fileWriter.write(“#” + time + “# [” + msg + “]” + “\r\n”); fileWriter.flush(); } catch (IOException e) { System.out.println(“### 写日志到文件异常 ### >>> ” + e.getMessage()); e.printStackTrace(); } finally { try { fileWriter.close(); } catch (IOException e) { System.out.println(“### 关闭写日志的流异常 ### >>> ” + e.getMessage()); e.printStackTrace(); } } } /** * 删除之前的日志文件 */ private static void delOldFile() { Date today = new Date(); int month = today.getMonth()+1; month = month – 2; if(month == -1) month = 11; if(month == 0) month = 12; String delPath = rootPath + String.valueOf(month) + “\\”; File folder = new File(delPath); if(folder.exists()) { File[] files = folder.listFiles(); for(int i=0; i>> ” + e.getMessage()); e.printStackTrace(); } } fileName = rootPath + String.valueOf((today.getMonth()+1)) + “\\” + fileName; return fileName; } /** * 测试使用的main方法 */ public static void main(String[] args) { //getFileName(); String testString = “写日志咯：71FABB7890D2CC0D267FBD84F409618C0303BC597B9244C324947BDE4B1C0B4CB08C33FC461F7BADD088535DAE42D8D7D06F4134E442D9D1CE3A0F9B3EDD64337A2D18CE34FCDC137B7CBD84F409618C03038FEAEC79F79C2F58BD84F409618C03038FEAEC79F79C2F58BD84F409618C03038FEAEC79F79C2F581790ACB3C178641D14D8C09905BC52CF1C8249B12F2EDE5AC3C8FAF2FD8A686E”; writeMsgToFile(testString); //delOldFile(); }}