Tomcat实现自动重启

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原文：Tomcat实现自动重启

源代码下载地址：http://www.zuidaima.com/share/1550463736564736.htm

中秋国庆马上来临，由于客户的服务器不是很稳定，导致应用经常崩溃，所以写了个重启tomcat的程序，拿来给大家分享。 java后台程序上图： Tomcat实现自动重启大概思路是这样的： 1.监控服务器端是否能正常访问； 2.如果不能正常访问，则根据配置的信息来重新启动tomct服务如果能正常访问则隔一段时间在监控。。。其中用到了doc命令，代码注释很明确，不明白的可以问我

    import java.io.BufferedReader;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import java.util.Properties;/** * @describe:TomcatMonitor.java *  * @date 2013-9-18 * @author 小C www.zuidaima.com */public class TomcatMonitor implements Runnable{    String procName="tomcat6.exe"; //进程名称    //String fullProcName="C:\\Tomcat6\\bin\\tomcat6.exe";    String fullProcName=""; //tomcat6.exe绝对物理地址    //String command="cmd.exe /c start";    String command=""; //系统命令    //String testHttp="http://127.0.0.1:8080";    String testHttp="";  //测试连接地址    int testIntervalTime=1;//测试连接间隔时间，单位为秒    int waitIntervalTime=2; //等待测试间隔时间，单位为秒    int testTotalCount=5; //测试连接总次数        Thread thread=null;    public TomcatMonitor(){InputStream in = TomcatMonitor.class.getResourceAsStream("config.properties");Properties p = new Properties();try {p.load(in);procName=p.getProperty("procName");fullProcName=p.getProperty("fullProcName");command=p.getProperty("command");testHttp=p.getProperty("testHttp");testIntervalTime=Integer.parseInt(p.getProperty("testIntervalTime"));waitIntervalTime=Integer.parseInt(p.getProperty("waitIntervalTime"));testTotalCount=Integer.parseInt(p.getProperty("testTotalCount"));System.out.println("初始化成功!");} catch (IOException e) {e.printStackTrace();}thread=new Thread(this);thread.start();}public void run() {        String[] cmd = {"tasklist"};        System.out.println("正在监控中...");           int testCount=0;while(true){testCount=0;testCount++;            boolean isrun=test();            System.out.println("正在启动测试连接,尝试连接次数为:"+testCount+",结果为:"+(isrun==false?"失败.":"成功!"));                        while(!isrun){            if(testCount>=testTotalCount)break;            try {thread.sleep(testIntervalTime*1000);} catch (InterruptedException e) {e.printStackTrace();}testCount++;System.out.println("正在启动测试连接,尝试连接次数为:"+testCount+",结果为:"+(isrun==false?"失败.":"成功!"));                        isrun=test();            }                        if(!isrun){            System.out.println("测试连接失败,正在重启tomcat");            try{                                Process proc = Runtime.getRuntime().exec(cmd);                BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));                                        String string_Temp = in.readLine();                while (string_Temp != null)                {                    if(string_Temp.toLowerCase().indexOf(procName)!=-1){                        Runtime.getRuntime().exec("Taskkill /f /im "+procName);                        break;                    }                    string_Temp = in.readLine();                }                thread.sleep(5000);                Process p=Runtime.getRuntime().exec(command+" \"\" \""+fullProcName+"\"");                 //Process p=Runtime.getRuntime().exec("net start tomcat6");                System.out.println("重启tomcat成功");        }catch(Exception e){        e.printStackTrace();        }                        }            try {thread.sleep(waitIntervalTime*1000);} catch (InterruptedException e) {e.printStackTrace();}                        isrun=test();}}public boolean test(){URL url=null;try {url = new URL(testHttp);} catch (MalformedURLException e) {e.printStackTrace();}try {URLConnection urlConn=url.openConnection();urlConn.setReadTimeout(15000);BufferedReader reader = new BufferedReader(new InputStreamReader( urlConn.getInputStream()));            //实例化输入流，并获取网页代码   String s;                                          while ((s = reader.readLine()) != null) {      return true;      }   } catch (Exception e) {          return false;}return false;}public static void main(String[] args) throws Exception{TomcatMonitor tm=new TomcatMonitor();}}

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