java代码关闭tomcat程序

1.通过java代码实现tomcat的关闭

2.tomcatStop.java

 package test;

 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;

 public class tomcatStop {

     public static void main(String[] args) {
         // TODO Auto-generated method stub
         System.out.println("访问已超出日访问量");
         String command = "D:\\apache-tomcat-8.5.39\\bin\\shutdown.bat";// 关闭tomcat命令
         try {
             callCommand(command);
         } catch (IOException e) {
             System.out.println("执行命令时出错：" + e.getMessage());
         }
     }

     public static void callCommand(String command) throws IOException {

         Runtime runtime = Runtime.getRuntime();// 返回与当前的Java应用相关的运行时对象
         // 指示Java虚拟机创建一个子进程执行指定的可执行程序，并返回与该子进程对应的Process对象实例
         Process process = runtime.exec(command);
         runtime.gc();// 运行垃圾回收器
         String line = null;
         String content = "";
         BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
         while ((line = br.readLine()) != null) {
             content += line + "\r\n";
         }
         System.out.println(content);

     }
 }

tomcatStop.java

3.执行关闭命令

4.常见错误

执行代码后可能出现：

The CATALINA_HOME environment variable is not defined correctly

This environment variable is needed to run this program

此时需设置环境变量：

本人设置后运行依然报错，但是将电脑注销一下再次运行即可。