Shell 脚本 —— java 代码远程调用shell脚本重启 tomcat

以你之姓@ 2022-02-09 07:56 482阅读 0赞

### 个人博客网：[https://wushaopei.github.io/][https_wushaopei.github.io]    (你想要这里多有) ###

### 1、创建maven 工程 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQwNTY3MA_size_16_color_FFFFFF_t_70][]

maven 依赖：

<dependency>
                <groupId>commons-io</groupId>
                <artifactId>commons-io</artifactId>
                <version>2.1</version>
            </dependency>
            
    
            
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>4.11</version>
                <scope>test</scope>
            </dependency>
            
            <dependency>
                <groupId>org.springframework</groupId>
                <artifactId>spring-test</artifactId>
                <version>5.0.13.RELEASE</version>
                <scope>test</scope>
            </dependency>
            
    
            
            <dependency>
                <groupId>org.apache.logging.log4j</groupId>
                <artifactId>log4j-core</artifactId>
                <version>2.11.1</version>
            </dependency>

### 2、创建 RemoteShellExecutor. java  文件用于远程连接Linux 服务器 ###

package com.webcode.cn;
    
    import ch.ethz.ssh2.ChannelCondition;
    import ch.ethz.ssh2.Session;
    import ch.ethz.ssh2.StreamGobbler;
    import org.apache.commons.io.IOUtils;
    import ch.ethz.ssh2.Connection;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.UnsupportedEncodingException;
    import java.nio.charset.Charset;
    
    
    public class RemoteShellExecutor {
        private Connection conn;
           /** 远程机器IP */
                   private String ip;
           /** 用户名 */
                   private String osUsername;
           /** 密码 */
                   private String password;
           private String charset = Charset.defaultCharset().toString();
    
                   private static final int TIME_OUT = 1000 * 5 * 60;
    
                   /**
             * 构造函数
             * @param ip
             * @param usr
             * @param pasword
             */
                   public RemoteShellExecutor(String ip, String usr, String pasword) {
                       this.ip = ip;
                      this.osUsername = usr;
                      this.password = pasword;
                  }
    
    
                   /**
            * 登录
            * @return
            * @throws IOException
            */
                   private boolean login() throws IOException {
                      conn = new Connection(ip);
                     conn.connect();
                      return conn.authenticateWithPassword(osUsername, password);
                  }
    
                   /**
            * 执行脚本
            *
           * @param cmds
            * @return
            * @throws Exception
            */
                   public int exec(String cmds) throws Exception {
                      InputStream stdOut = null;
                      InputStream stdErr = null;
                      String outStr = "";
                      String outErr = "";
                      int ret = -1;
                      try {
                          if (login()) {
                                  // Open a new {@link Session} on this connection
                                  Session session = conn.openSession();
                              // Execute a command on the remote machine.
                                  session.execCommand(cmds);
    
                                  stdOut = new StreamGobbler(session.getStdout());
                                  outStr = processStream(stdOut, charset);
    
                                  stdErr = new StreamGobbler(session.getStderr());
                                  outErr = processStream(stdErr, charset);
    
                                  session.waitForCondition(ChannelCondition.EXIT_STATUS, TIME_OUT);
    
                                  System.out.println("outStr=" + outStr);
                                  System.out.println("outErr=" + outErr);
    
                                  ret = session.getExitStatus();
                              } else {
                                  throw new Exception("登录远程机器失败" + ip); // 自定义异常类 实现略
                              }
                          } finally {
                              if (conn != null) {
                                      conn.close();
                                  }
                              IOUtils.closeQuietly(stdOut);
                              IOUtils.closeQuietly(stdErr);
                          }
                      return ret;
                  }
    
                   /**
            * @param in
            * @param charset
            * @return
            * @throws IOException
            * @throws UnsupportedEncodingException
            */
                   private String processStream(InputStream in, String charset) throws Exception {
                      byte[] buf = new byte[1024];
                      StringBuilder sb = new StringBuilder();
                      while (in.read(buf) != -1) {
                              sb.append(new String(buf, charset));
                          }
                      return sb.toString();
                  }
    
                 public static void main(String args[]) throws Exception {
                     RemoteShellExecutor executor = new RemoteShellExecutor("192.168.2xx.118", "root", "15989xxxxxx***");
                     // 执行myTest.sh 参数为java Know dummy
                     System.out.println(executor.exec("/home/wenmin/kill-tomcat.sh"));
                 }
    
    }

### 3、在Linux  /home/wenmin 目录下创建 kill-tomcat.sh  脚本文件 ###

#!/bin/bash
    
    #kill tomcat pid
    
    pidlist=`ps -ef|grep apache-tomcat-7.0.75|grep -v "grep"|awk '{print $2}'`  #找到tomcat的PID号
    
    echo "tomcat Id list :$pidlist"  //显示pid
    
    kill -9 $pidlist  #杀掉改进程
    
    echo "KILL $pidlist:" //提示进程以及被杀掉
    
    echo "service stop success"
    
    echo "start tomcat"
    
    cd /opt/apache-tomcat-7.0.75
    
    pwd
    
    rm -rf work/*
    
    cd bin
    
    ./startup.sh #;tail -f ../logs/catalina.out

### 4、执行 main  方法 ###

J:\folder\JDK1.8\bin\java -javaagent:J:\P2C\ideaIU-2017.2.win\lib\idea_rt.jar=62052:J:\P2C\ideaIU-2017.2.win\bin -Dfile.encoding=UTF-8 -classpath J:\folder\JDK1.8\jre\lib\charsets.jar;J:\folder\JDK1.8\jre\lib\deploy.jar;J:\folder\JDK1.8\jre\lib\ext\access-bridge-64.jar;J:\folder\JDK1.8\jre\lib\ext\cldrdata.jar;J:\folder\JDK1.8\jre\lib\ext\dnsns.jar;J:\folder\JDK1.8\jre\lib\ext\jaccess.jar;J:\folder\JDK1.8\jre\lib\ext\jfxrt.jar;J:\folder\JDK1.8\jre\lib\ext\localedata.jar;J:\folder\JDK1.8\jre\lib\ext\nashorn.jar;J:\folder\JDK1.8\jre\lib\ext\sunec.jar;J:\folder\JDK1.8\jre\lib\ext\sunjce_provider.jar;J:\folder\JDK1.8\jre\lib\ext\sunmscapi.jar;J:\folder\JDK1.8\jre\lib\ext\sunpkcs11.jar;J:\folder\JDK1.8\jre\lib\ext\zipfs.jar;J:\folder\JDK1.8\jre\lib\javaws.jar;J:\folder\JDK1.8\jre\lib\jce.jar;J:\folder\JDK1.8\jre\lib\jfr.jar;J:\folder\JDK1.8\jre\lib\jfxswt.jar;J:\folder\JDK1.8\jre\lib\jsse.jar;J:\folder\JDK1.8\jre\lib\management-agent.jar;J:\folder\JDK1.8\jre\lib\plugin.jar;J:\folder\JDK1.8\jre\lib\resources.jar;J:\folder\JDK1.8\jre\lib\rt.jar;J:\IDEA_Work_Space\shell-java\target\classes;C:\Users\wushaopei\.m2\repository\org\jvnet\hudson\ganymed-ssh2\build210-hudson-1\ganymed-ssh2-build210-hudson-1.jar;C:\Users\wushaopei\.m2\repository\commons-io\commons-io\2.1\commons-io-2.1.jar;C:\Users\wushaopei\.m2\repository\org\apache\logging\log4j\log4j-core\2.11.1\log4j-core-2.11.1.jar;C:\Users\wushaopei\.m2\repository\org\apache\logging\log4j\log4j-api\2.11.1\log4j-api-2.11.1.jar com.webcode.cn.RemoteShellExecutor
    outStr=tomcat Id list :14141 //显示pid
    KILL 14141: //提示进程以及被杀掉
    service stop success
    start tomcat
    /opt/apache-tomcat-7.0.75
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Using CATALINA_BASE:   /opt/apache-tomcat-7.0.75
    Using CATALINA_HOME:   /opt/apache-tomcat-7.0.75
    tart tomcat
    /opt/apache-tomcat-7.0.75
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Using CATALINA_TMPDIR: /opt/apache-tomcat-7.0.75/temp
     CATALINA_HOME:   /opt/apache-tomcat-7.0.75
    tart tomcat
    /opt/apache-tomcat-7.0.75
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Using JRE_HOME:        /usr
    Using CLASSPATH:       /opt/apache-tomcat-7.0.75/bin/bootstrap.jar:/opt/apache-tomcat-7.0.75/bin/tomcat-juli.jar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Tomcat started.
           /usr
    Using CLASSPATH:       /opt/apache-tomcat-7.0.75/bin/bootstrap.jar:/opt/apache-tomcat-7.0.75/bin/tomcat-juli.jar
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       
    outErr=
    0
    
    Process finished with exit code 0

[https_wushaopei.github.io]: https://wushaopei.github.io/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MjQwNTY3MA_size_16_color_FFFFFF_t_70]: /images/20220209/0c44d7ee4eea49d090dcb07971904d7c.png