java調用shell指令碼，並且返回結果集

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 1 /** 2      * 運行shell指令碼 3      * @param shell 需要啟動並執行shell指令碼 4      */ 5     public static void execShell(String shell){ 6         try { 7             Runtime rt = Runtime.getRuntime(); 8             rt.exec(shell); 9         } catch (Exception e) {10             e.printStackTrace();11         }12     }13  14  15 /**16      * 運行shell17      *18      * @param shStr19      *            需要執行的shell20      * @return21      * @throws IOException22      */23     public static List runShell(String shStr) throws Exception {24         List<String> strList = new ArrayList();25  26         Process process;27         process = Runtime.getRuntime().exec(new String[]{"/bin/sh","-c",shStr},null,null);28         InputStreamReader ir = new InputStreamReader(process29                 .getInputStream());30         LineNumberReader input = new LineNumberReader(ir);31         String line;32         process.waitFor();33         while ((line = input.readLine()) != null){34             strList.add(line);35         }36          37         return strList;38     }

遠程登陸linux且調用shell

首先在遠程伺服器上編寫一個測試指令碼test.sh,並賦予可執行許可權：chmod +x test.sh

1     #!/bin/bash  2     echo ‘test22‘  3     echo $1  

$1是指令碼傳進來的第一個參數，我們控制台列印一下這個參數

 

建立maven項目，添加依賴：

1     <dependency>  2         <groupId>org.jvnet.hudson</groupId>  3         <artifactId>ganymed-ssh2</artifactId>  4         <version>build210-hudson-1</version>  5     </dependency>  

編寫一個工具類：

 1 package com.xj.runshell;   2    3 import java.io.IOException;   4 import java.io.InputStream;   5 import java.nio.charset.Charset;   6    7 import ch.ethz.ssh2.Connection;   8 import ch.ethz.ssh2.Session;   9   10 public class RemoteShellTool {  11   12     private Connection conn;  13     private String ipAddr;  14     private String charset = Charset.defaultCharset().toString();  15     private String userName;  16     private String password;  17   18     public RemoteShellTool(String ipAddr, String userName, String password,  19             String charset) {  20         this.ipAddr = ipAddr;  21         this.userName = userName;  22         this.password = password;  23         if (charset != null) {  24             this.charset = charset;  25         }  26     }  27   28     public boolean login() throws IOException {  29         conn = new Connection(ipAddr);  30         conn.connect(); // 串連  31         return conn.authenticateWithPassword(userName, password); // 認證  32     }  33   34     public String exec(String cmds) {  35         InputStream in = null;  36         String result = "";  37         try {  38             if (this.login()) {  39                 Session session = conn.openSession(); // 開啟一個會話  40                 session.execCommand(cmds);  41                   42                 in = session.getStdout();  43                 result = this.processStdout(in, this.charset);  44                 session.close();  45                 conn.close();  46             }  47         } catch (IOException e1) {  48             e1.printStackTrace();  49         }  50         return result;  51     }  52   53     public String processStdout(InputStream in, String charset) {  54       55         byte[] buf = new byte[1024];  56         StringBuffer sb = new StringBuffer();  57         try {  58             while (in.read(buf) != -1) {  59                 sb.append(new String(buf, charset));  60             }  61         } catch (IOException e) {  62             e.printStackTrace();  63         }  64         return sb.toString();  65     }  66   67     /** 68      * @param args 69      */  70     public static void main(String[] args) {  71   72         RemoteShellTool tool = new RemoteShellTool("192.168.27.41", "hadoop",  73                 "hadoop", "utf-8");  74   75         String result = tool.exec("./test.sh xiaojun");  76         System.out.print(result);  77   78     }  79   80 } 

main函數中執行了./test.sh xiaojun這個命令，控制台列印出：

test22

xiaojun

java調用shell指令碼，並且返回結果集