服务器的IIS经常自动停机，每次都要我手动上去重启服务，查了许多相关贴子都说是Access的JET引擎导致IIS停机，我这里论坛用的是DVBBS免费的Access版，才懒的去改SQL版呢。本来前两天下了个"WEB服务器运行状况监控V1.3.3"，本指望它能帮点忙，也省的自己动手，不过它重启的方法有问题，加上有个选项“重启IIS（失败则重启电脑）”，使得服务器一天重启N多次。一怒之下又自己上了。
此方法同样可适用Tomcat等服务，只要指定页面和服务名即可。也可以用于Web端重启服务器，不过因该不好用，除非你让Tomcat的启动账号有Administrator的权限。
import java.io.InputStream;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.net.MalformedURLException;
import java.util.Date;/**
* <p>Title:IIS服务监护 </p>
* <p>Description: </p>
* <p>Copyright: flashman.com.cn Copyright (c) 2005</p>
* <p>Company: flashman.com.cn</p>
* @Jeff zhu
* @version 1.0
*/public class IISMonitor extends Thread{//服务操作成功标识// private static final String SUCCESS_SIGN = "successfully";//英文系统privatestatic final String SUCCESS_SIGN ="成功";//中文系统//页面检测间隔时间privatestatic final int REFRESH_TIMER = 5 * 60 * 1000;//页面活动时间privatestatic final int MONITOR_TIMER = 10 * 1000;
Runtime runtime;public IISMonitor(){
runtime = Runtime.getRuntime();}/**
* 启动服务
* @param name 服务名
* @return
*/public boolean startService(String name){return execute("net start "+ name).indexOf(SUCCESS_SIGN)>= 0;}/**
* 停止服务
* @param name 服务名
* @return
*/public boolean stopService(String name){return execute("net stop "+ name +" /y").indexOf(SUCCESS_SIGN)>= 0;}/**
* 页面是否活动
* @param link
* @return
*/public boolean pageIsAlive(String link){
boolean result =true;
PageCheck page =new PageCheck(link);
page.start();
long now =System.currentTimeMillis();
try {while(!page.alive){this.sleep(1000);if(System.currentTimeMillis()- now > MONITOR_TIMER){
result =false;break;}// System.out.println(System.currentTimeMillis() - now);}}
catch (InterruptedException ex){
ex.printStackTrace();
result =false;}
page.stop();return result;}/**
* 执行命令行
* @param cmd
* @return 控制台信息
*/privateString execute(String cmd){String line, message ="";
try {
Process process = Runtime.getRuntime().exec(cmd);
try {
BufferedReader readIn =new BufferedReader(new InputStreamReader(process.getInputStream()));while((line = readIn.readLine())!=null){
message += line +"\n";}
readIn.close();} catch (IOException ex){
ex.printStackTrace();}}catch (IOException ex){
message ="";}//System.out.println(message);return message;}/**
* 启动方法
* @param args
*/publicstaticvoid main(String[] args){new Thread(){publicvoid run(){
IISMonitor monitor =new IISMonitor();while(true){
try {String link, message ="";System.out.print(newDate().toLocaleString()+" checked...");
link ="http://localhost/iisMonitor.asp";if(monitor.pageIsAlive(link)){System.out.print("the page is Alive!\n");}else{System.out.print("the page is Dead!!!\n");//StopIISSystem.out.print("Stoped IIS...");if(monitor.stopService("iisadmin")){System.out.print("successfully.\n");}else{System.out.print("unsuccessful!!!\n");}//StartIISSystem.out.print("Started IIS...");if(monitor.startService("W3SVC")){System.out.print("successfully.\n");}else{System.out.print("unsuccessful!!!\n");}}System.out.println(message);this.sleep(IISMonitor.REFRESH_TIMER);}
catch (Exception ex){
ex.printStackTrace();}}}}.start();}}/**
* 页面检测类
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author not attributable
* @version 1.0
*/
class PageCheck extends Thread{public boolean alive;privateString link;public PageCheck(String link){this.alive =false;this.link = link;}publicvoid run(){
try {
URLConnection urlConnection;String line, result ="";
urlConnection =new URL(link).openConnection();
BufferedReader readIn =new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));while((line = readIn.readLine())!=null){
result += line +"\n";}
readIn.close();
alive =true;}
catch (Exception ex){
ex.printStackTrace();
alive =false;}}}
下面这段存成iisMonitor.asp放在服务器上
<%
Response.Buffer=false
Response.Write now
'假死测试'For I=1 To 1000000' Response.Write I & "<br>"'Next%>
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