Shell 脚本 —— java 代码远程调用shell脚本重启 tomcat
个人博客网：https://wushaopei.github.io/ (你想要这里多有)
1、创建maven 工程
maven 依赖：
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api -->
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>5.0.13.RELEASE</version>
<scope>test</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/logutil/logutil -->
<!-- https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core -->
<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
