java调用shell脚本,并获得结果集的例子

/**
	 * 运行shell脚本
	 * @param shell 需要运行的shell脚本
	 */
	public static void execShell(String shell){
		try {
			Runtime rt = Runtime.getRuntime();
			rt.exec(shell);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}


/**
	 * 运行shell
	 * 
	 * @param shStr
	 *            需要执行的shell
	 * @return
	 * @throws IOException
	 */
	public static List runShell(String shStr) throws Exception {
		List<String> strList = new ArrayList();

		Process process;
		process = Runtime.getRuntime().exec(new String[]{"/bin/sh","-c",shStr},null,null);
		InputStreamReader ir = new InputStreamReader(process
				.getInputStream());
		LineNumberReader input = new LineNumberReader(ir);
		String line;
		process.waitFor();
		while ((line = input.readLine()) != null){
		    strList.add(line);
		}
		
		return strList;
	}
　　

 

远程登陆linux且调用shell

首先在远程服务器上编写一个测试脚本test.sh,并赋予可执行权限：chmod +x test.sh

#!/bin/bash
echo 'test22'
echo $1

$1是脚本传进来的第一个参数，我们控制台打印一下这个参数

 

新建maven项目，添加依赖：

<dependency>
    <groupId>org.jvnet.hudson</groupId>
    <artifactId>ganymed-ssh2</artifactId>
    <version>build210-hudson-1</version>
</dependency>

 

编写一个工具类：

package com.xj.runshell;

import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;

import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;

public class RemoteShellTool {

    private Connection conn;
    private String ipAddr;
    private String charset = Charset.defaultCharset().toString();
    private String userName;
    private String password;

    public RemoteShellTool(String ipAddr, String userName, String password,
            String charset) {
        this.ipAddr = ipAddr;
        this.userName = userName;
        this.password = password;
        if (charset != null) {
            this.charset = charset;
        }
    }

    public boolean login() throws IOException {
        conn = new Connection(ipAddr);
        conn.connect(); // 连接
        return conn.authenticateWithPassword(userName, password); // 认证
    }

    public String exec(String cmds) {
        InputStream in = null;
        String result = "";
        try {
            if (this.login()) {
                Session session = conn.openSession(); // 打开一个会话
                session.execCommand(cmds);

                in = session.getStdout();
                result = this.processStdout(in, this.charset);
                session.close();
                conn.close();
            }
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        return result;
    }

    public String processStdout(InputStream in, String charset) {

        byte[] buf = new byte[1024];
        StringBuffer sb = new StringBuffer();
        try {
            while (in.read(buf) != -1) {
                sb.append(new String(buf, charset));
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
        return sb.toString();
    }

    /**
     * @param args
     */
    public static void main(String[] args) {

        RemoteShellTool tool = new RemoteShellTool("192.168.27.41", "hadoop",
                "hadoop", "utf-8");

        String result = tool.exec("./test.sh xiaojun");
        System.out.print(result);

    }

}

main函数中执行了./test.sh xiaojun这个命令，控制台打印出：

test22

xiaojun