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package com.pzx.tomcat;

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.Date;

import java.util.Properties;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

* @describe:TomcatMonitor.java

*

* @date 2019/06/10

* @author pzx

*/

public class TomcatMonitor implements Runnable {

// private static final Logger logger = LoggerFactory.getLogger(TomcatMonitor.class.getName());

String start = ""; // 系统命令 启动

String stop = ""; // 系统命令 关闭

String killJava = ""; // 强制关闭java的命令

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);

stop = p.getProperty("stop");

start = p.getProperty("start");

killJava=p.getProperty("killJava");

testHttp = p.getProperty("testHttp");

testIntervalTime = Integer.parseInt(p.getProperty("testIntervalTime"));

waitIntervalTime = Integer.parseInt(p.getProperty("waitIntervalTime"));

testTotalCount = Integer.parseInt(p.getProperty("testTotalCount"));

} catch (Exception e) {

e.printStackTrace();

}

System.out.println("*******************初始化成功!*******************");

thread = new Thread(this);

thread.start();

}

public void run() {

System.out.println("正在监控中...");

// logger.debug("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!")+"监控时间为:"+new Date());

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!")+"监控时间为:"+new Date());

isrun = test();

}

if (!isrun) {

try {

System.out.println("测试连接失败,正在重启tomcat");

System.out.println("开始停止tomcat");

// 关闭tomcat服务

Process proc = Runtime.getRuntime().exec(stop);

// // 关闭后线程沉睡

thread.sleep(20000);

//强制关闭java.exe（正式环境关闭tomcat很长时间黑窗口才关闭 强制杀掉）

try {

System.out.println("开始强制杀进程java.exe");

Process procJava = Runtime.getRuntime().exec(killJava);

//强制杀线程后沉睡

thread.sleep(5000);

} catch (Exception e) {

//强制杀线程有异常不处理

System.out.println("强制杀进程java.exe异常");

}

System.out.println("开始启动tomcat");

// 启动tomcat服务

Process p = Runtime.getRuntime().exec(start);

System.out.println("重启tomcat成功");

thread.sleep(30000);

//杀掉每次执行命令的黑窗口，默认是不关掉的 不杀的话 会开无限个cmd窗口

killProcess();

} catch (Exception e) {

e.printStackTrace();

System.out.println("重启tomcat异常,请查看先关错误信息。。。。。");

}

}

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(10000);

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();

}

//关闭cmd窗口

public static void killProcess() {

Runtime rt = Runtime.getRuntime();

Process p = null;

try {

rt.exec("cmd.exe /C start wmic process where name='cmd.exe' call terminate");

} catch (IOException e) {

e.printStackTrace();

}

}

}

---

• 配置文件如下:

#系统命令 启动

start=cmd /c start D:\\tomcat-standard\\bin\\startup.bat

#关闭

stop=cmd /c start D:\\tomcat-standard\\bin\\shutdown.bat

#强制关闭java的命令

killJava=cmd /c start taskkill /f /t /IM java.exe2

#测试连接总次数

testTotalCount=2

#连接失败时，再次检测时间间隔，单位为秒

testIntervalTime=5

#连接超时时间，即多少秒tomcat没响应视为宕机，单位为秒

connectionTimeout=15

#tomcat启动时间，防止在tomcat尚未启动完成的时候，程序又去检验tomcat状态，造成尚未启动完成又重新启动，单位为秒

tomcatStartTime=600

#测试连接地址

testHttp=http://localhost/mhmscp/login.jsp

#正常情况下，每次检测间隔时间，单位为秒

waitIntervalTime=120

---

---

直接运行main方法 或者打包成jar， 后 jar -jar