JAVA执行shell命令小工具

秒速五厘米 2022-04-13 10:28 462阅读 0赞

\[color=green\]\[size=large\]在我们的项目中，大部分环境的服务器用的都是Linux，从而使用JAVA与Linux shell通讯，就成了一项很常见的事情。  
  
Ganymed SSH是一个Java实现SSH的项目  
Java 实现SSH协议的项目有很多，如JFTP，trilead SSH，JSCH，ganymed SSH等  
下面我们主要说的是关于ganymed SSH的一些小使用。  
Ganymed SSH-2 for Java是用纯Java实现SSH-2协议的一个项目。可以通过它直接在Java程序中连接SSH服务器，实现基于SSH协议的服务访问。 如远程命令执行和shell访问,本地和远程端口转发，本地数据流转发，X11转发，SCP，SFTP等功能。  
  
  
散仙测试的demo如下：  
\[/size\]\[/color\]

package com.qin.shell;
    
    
    import java.io.BufferedReader;
    import java.io.IOException;
    import java.io.InputStream;
    import java.io.InputStreamReader;
    
    import org.mortbay.log.Log;
    
    
    import ch.ethz.ssh2.Connection;
    import ch.ethz.ssh2.Session;
    import ch.ethz.ssh2.StreamGobbler;
    
    public class ExecShell{
       
    	private String IP;//要远程登录的IP地址
    	private String username;//用户名
    	private String password;//密码
    
    	public ExecShell(String IP, String username,String password){
       
    		this.IP=IP;
    		this.username=username;
    		this.password=password;
    	}
    
    	//命令执行
    	public boolean exec( String command ) throws InterruptedException{
       
    		Log.info("command: "+command);
    		boolean rtn = false;
    		try {
       
    			Connection conn = new Connection(IP);
    			conn.connect();
    			boolean isAuthenticated = conn.authenticateWithPassword(username, password);
    			if (isAuthenticated == false){
       
    				throw new IOException("Authentication failed.");
    			}
    			Session sess = conn.openSession();
    			sess.execCommand(command);
    
    			InputStream stdout = new StreamGobbler(sess.getStdout());
    			BufferedReader br = new BufferedReader(new InputStreamReader(stdout));
    
    			InputStream stderr = new StreamGobbler(sess.getStderr());
    			BufferedReader stderrReader = new BufferedReader(new InputStreamReader(stderr));
    
    			String line = null;
    			while ( (line = br.readLine())!=null )
    			{
       
    				Log.info("GanyMedUtil out> "+line);
    			}
    
    			while (true)
    			{
       
    				line = stderrReader.readLine();
    				if (line == null)
    					break;
    				Log.info("GanyMedUtil out> "+line);
    			}
    
    			/* Show exit status, if available (otherwise "null") */  
    			Log.info("ExitCode: " + sess.getExitStatus()+" "+IP+":"+command);
    			sess.close();
    			conn.close();
    			rtn = new Integer(0).equals(sess.getExitStatus());
    			return rtn;
    		}
    		catch (IOException e)
    		{
       
    			Log.warn("Error ......................",e);
    			e.printStackTrace();
    			System.exit(2);
    			return rtn;
    		}
    	}
    
    
    
    
    
    	public static void main(String[] args) throws InterruptedException {
       
    
    		ExecShell es = new ExecShell("192.168.75.130","root","dongliang");
    		System.out.println("==========================================单个命令测试执行==========================================");
    		es.exec("ls");//执行单行命令
    		System.out.println("==========================================多个命令测试执行==========================================");
    		es.exec("cd /root/apache-nutch-1.8/ && ls && date");//多个命令之间使用&&隔开
    		//ganyMedUtil.execMoreShellCommand("");
    		//ganyMedUtil.exec("ls");
    
    	}
    
    }

\[color=olive\]\[size=large\]输出的内容如下所示: \[/size\]\[/color\]

2014-05-28 15:27:19.076:INFO::Logging to STDERR via org.mortbay.log.StdErrLog
    2014-05-28 15:27:19.076:INFO::command: ls
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> 2
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> abc.txt
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> anaconda-ks.cfg
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> apache-ant-1.9.2
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> apache-ant-1.9.2-bin.tar.gz
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> apache-nutch-1.8
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> apache-nutch-1.8-src.zip
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> a.sh
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> bb.sh
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> b.sh
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> case.sh
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> cip.sh
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> c.sh
    2014-05-28 15:27:19.454:INFO::GanyMedUtil out> date
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> d.sh
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> e.sh
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> f.sh
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia_20140327155418.zip
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia-3.1.7-3.el6.rf.x86_64.rpm
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia-devel-3.1.7-3.el6.rf.x86_64.rpm
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia-gmetad-3.1.7-3.el6.rf.x86_64.rpm
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia-gmond-3.1.7-3.el6.rf.x86_64.rpm
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia-gmond-python-3.1.7-3.el6.rf.x86_64.rpm
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> ganglia-web-3.1.7-3.el6.rf.x86_64.rpm
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> gg.sh
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> hadoop1.2
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> hadoop-1.2.0.tar.gz
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> installganglia.sh
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> install.log
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> install.log.syslog
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> jdk1.7
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> jdk-7u51-linux-x64.tar.gz
    2014-05-28 15:27:19.455:INFO::GanyMedUtil out> jmxtrans-20121016.145842.6a28c97fbb-0.noarch.rpm
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> libconfuse-2.7-6.2.x86_64.rpm
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> libevent-2.0.21-stable
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> libevent-2.0.21-stable.tar.gz
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> memcached-1.4.15
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> memcached-1.4.15.tar.gz
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> my.sh
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> pp
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> solr-4.3.1.tgz
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> test.jar
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> test.py
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> zookeeper
    2014-05-28 15:27:19.456:INFO::GanyMedUtil out> zookeeper.zip
    2014-05-28 15:27:19.456:INFO::ExitCode: 0 192.168.75.130:ls
    ==========================================多个命令测试执行==========================================
    2014-05-28 15:27:19.458:INFO::command: cd /root/apache-nutch-1.8/ && ls && date
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> bb.sh
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> build
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> build.xml
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> CHANGES.txt
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> conf
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> default.properties
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> docs
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> ivy
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> lib
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> LICENSE.txt
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> NOTICE.txt
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> README.txt
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> runtime
    2014-05-28 15:27:19.789:INFO::GanyMedUtil out> src
    2014-05-28 15:27:19.790:INFO::GanyMedUtil out> 2014年 05月 28日 星期三 23:27:19 CST
    2014-05-28 15:27:19.790:INFO::ExitCode: 0 192.168.75.130:cd /root/apache-nutch-1.8/ && ls && date

\[b\]\[color=olive\]\[size=large\]能够在在应用程序中，执行shell脚本是非常有用的，我们可以自己写一个shell脚本，把多个shell命令，封装起来，然后执行一次shell即可。\[/size\]\[/color\]\[/b\]