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監控tomcat狀態片斷

import java.net.URL;

import java.net.URLConnection;

import java.util.Date;

public class RestartTomcat {

public static void main(String[] args) throws Exception {

//set connection timecout

System.setProperty("sun.net.client.defaultConnectTimeout", "10000");

System.setProperty("sun.net.client.defaultReadTimeout", "10000");

URLConnection conn=null;

while (true) {

URL url = new URL("http://www.xxx.cn");

conn = url.openConnection();

//log("connection is " + conn);

if (conn==null || conn.getHeaderField(null)==null || (conn.getHeaderField(null)).indexOf("200") == -1) {

if(conn==null){

log("Connection is null");

}else if(conn.getHeaderField(null)==null){

log("No http Status");

}else if((conn.getHeaderField(null)).indexOf("200") == -1){

log("The http status is not 200");

}

Runtime.getRuntime().exec("net stop tomcat5");

log("Stop tomcat5

");

Thread.sleep(1000 * 30 );

Runtime.getRuntime().exec("net start tomcat5");

log("Start tomcat5

");

log("Tomcat has been restarted.");

//wait 5 minuts

Thread.sleep(1000 * 60 * 5);

} else {

log("Tomcat is running correctly");

//wait 1 minut

Thread.sleep(1000 * 60 * 1);

}

private static void log(String s){

System.out.println("["+new Date()+"] " + s +" ");

}

posted on 2008-07-26 16:59 MingIsMe 閱讀(145) 評論(0) 編輯收藏所屬分類: 06 J2EE

Samuel Learning

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監控tomcat狀態片斷