原文:Tomcat實作自動重新開機
源代碼下載下傳位址:http://www.zuidaima.com/share/1550463736564736.htm
中秋國慶馬上來臨,由于客戶的伺服器不是很穩定,導緻應用經常崩潰,是以寫了個重新開機tomcat的程式,拿來給大家分享。 java背景程式 上圖:
![](https://img.laitimes.com/img/__Qf2AjLwojIjJCLyojI0JCLicGcq5SNyMDewUjNfFDM2cTM2gTOzIDNxUDO0EzLchDNx8CXzV2Zh1WavwVbvNmLh1WahRWa1pnLjlGdhR3cvw1LcpDc0RHaiojIsJye.jpg)
大概思路是這樣的: 1.監控伺服器端是否能正常通路; 2.如果不能正常通路,則根據配置的資訊來重新啟動tomct服務 如果能正常通路則隔一段時間在監控。。。 其中用到了doc指令,代碼注釋很明确,不明白的可以問我
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"; //程序名稱
//String fullProcName="C:\\Tomcat6\\bin\\tomcat6.exe";
String fullProcName=""; //tomcat6.exe絕對實體位址
//String command="cmd.exe /c start";
String command=""; //系統指令
//String testHttp="http://127.0.0.1:8080";
String testHttp=""; //測試連接配接位址
int testIntervalTime=1;//測試連接配接間隔時間,機關為秒
int waitIntervalTime=2; //等待測試間隔時間,機關為秒
int testTotalCount=5; //測試連接配接總次數
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("正在監控中...");
int testCount=0;
while(true){
testCount=0;
testCount++;
boolean isrun=test();
System.out.println("正在啟動測試連接配接,嘗試連接配接次數為:"+testCount+",結果為:"+(isrun==false?"失敗.":"成功!"));
while(!isrun){
if(testCount>=testTotalCount)break;
try {
thread.sleep(testIntervalTime*1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
testCount++;
System.out.println("正在啟動測試連接配接,嘗試連接配接次數為:"+testCount+",結果為:"+(isrun==false?"失敗.":"成功!"));
isrun=test();
}
if(!isrun){
System.out.println("測試連接配接失敗,正在重新開機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("重新開機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())); //執行個體化輸入流,并擷取網頁代碼
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();
}
}