The method of turning on / off tomcat Server by Java

1. Project structure

2.CallTomcat.java

package com.calltomcat.test; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; public class CallTomcat { public static void main (String[] args) { //String command = "E:\\apache-tomcat-7.0.76\\bin\\startup.bat";//Start tomcat command//String command = "E:\\apache-tomcat-7.0.76\bin\\tomcat7w.exe";/Start Tomcat command, windows version only, no pop-up box String command = "E:\\apache-tomcat-7.0.76\bin\\shutdown.bat";//Close tomcat command CallTomcat = new CallTomcat(); try { callTomcat.callCommand(command);} catch (IOException e) { System.out.println("Error executing command: " + e.getMessage()); } } /** * Execute command * * @throws IOException */ private void callCommand (String command) throws IOException { Runtime runtime = Runtime.getRuntime();//Returns the runtime object associated with the current Java application//instructs the Java virtual machine to create a child process to execute the specified executable program and returns the Process object instance corresponding to the child process Process = runtime.exec(command); runtime.gc();//run garbage collector String line = null; String content = ""; Buffered Reader br = new Buffered Reader (new InputStreamReader(process.getInputStream())); while((line = br.readLine()) != null) { content += line + "\r\n"; } System.out.println(content); }}

3. effect preview

3.1 Execute open command

3.2 Execute shutdown command

4. common mistakes

Executing the code may result in:

The CATALINA_HOME environment variable is not defined correctly

This environment variable is needed to run this program

You need to set environment variables:

I set up after the operation is still error, but the computer will log off to run again.

5. description

A pop-up box appears automatically if you execute startup.bat, but not if you execute tomcat7w.exe(which varies depending on the tomcat version). -- Windows version only, other versions do not have.exe files.

summary

The above is the Java open/close tomcat server method introduced by Xiaobian to you, I hope to help you, if you have any questions, please give me a message, Xiaobian will reply to you in time. Thank you very much for your support!

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