Android程序中如何执行shell脚本

  1 package com.example.test;  
  2   
  3 import java.io.BufferedReader;  
  4 import java.io.DataOutputStream;  
  5 import java.io.IOException;  
  6 import java.io.InputStreamReader;  
  7   
  8 import android.util.Log;  
  9   
 10 /** 
 11  * 执行shell脚本工具类 
 12  * @author Mountain 
 13  * 
 14  */  
 15 public class CommandExecution {  
 16   
 17     public static final String TAG = "CommandExecution";  
 18       
 19     public final static String COMMAND_SU       = "su";  
 20     public final static String COMMAND_SH       = "sh";  
 21     public final static String COMMAND_EXIT     = "exit\n";  
 22     public final static String COMMAND_LINE_END = "\n";  
 23   
 24     /** 
 25      * Command执行结果 
 26      * @author Mountain 
 27      * 
 28      */  
 29     public static class CommandResult {  
 30         public int result = -1;  
 31         public String errorMsg;  
 32         public String successMsg;  
 33     }  
 34   
 35     /** 
 36      * 执行命令—单条 
 37      * @param command 
 38      * @param isRoot 
 39      * @return 
 40      */  
 41     public static CommandResult execCommand(String command, boolean isRoot) {  
 42         String[] commands = {command};  
 43         return execCommand(commands, isRoot);  
 44     }  
 45   
 46     /** 
 47      * 执行命令-多条 
 48      * @param commands 
 49      * @param isRoot 
 50      * @return 
 51      */  
 52     public static CommandResult execCommand(String[] commands, boolean isRoot) {  
 53         CommandResult commandResult = new CommandResult();  
 54         if (commands == null || commands.length == 0) return commandResult;  
 55         Process process = null;  
 56         DataOutputStream os = null;  
 57         BufferedReader successResult = null;  
 58         BufferedReader errorResult = null;  
 59         StringBuilder successMsg = null;  
 60         StringBuilder errorMsg = null;  
 61         try {  
 62             process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);  
 63             os = new DataOutputStream(process.getOutputStream());  
 64             for (String command : commands) {  
 65                 if (command != null) {  
 66                     os.write(command.getBytes());  
 67                     os.writeBytes(COMMAND_LINE_END);  
 68                     os.flush();  
 69                 }  
 70             }  
 71             os.writeBytes(COMMAND_EXIT);  
 72             os.flush();  
 73             commandResult.result = process.waitFor();  
 74             //获取错误信息  
 75             successMsg = new StringBuilder();  
 76             errorMsg = new StringBuilder();  
 77             successResult = new BufferedReader(new InputStreamReader(process.getInputStream()));  
 78             errorResult = new BufferedReader(new InputStreamReader(process.getErrorStream()));  
 79             String s;  
 80             while ((s = successResult.readLine()) != null) successMsg.append(s);  
 81             while ((s = errorResult.readLine()) != null) errorMsg.append(s);  
 82             commandResult.successMsg = successMsg.toString();  
 83             commandResult.errorMsg = errorMsg.toString();  
 84             Log.i(TAG, commandResult.result + " | " + commandResult.successMsg  
 85                     + " | " + commandResult.errorMsg);  
 86         } catch (IOException e) {  
 87             String errmsg = e.getMessage();  
 88             if (errmsg != null) {  
 89                 Log.e(TAG, errmsg);  
 90             } else {  
 91                 e.printStackTrace();  
 92             }  
 93         } catch (Exception e) {  
 94             String errmsg = e.getMessage();  
 95             if (errmsg != null) {  
 96                 Log.e(TAG, errmsg);  
 97             } else {  
 98                 e.printStackTrace();  
 99             }  
100         } finally {  
101             try {  
102                 if (os != null) os.close();  
103                 if (successResult != null) successResult.close();  
104                 if (errorResult != null) errorResult.close();  
105             } catch (IOException e) {  
106                 String errmsg = e.getMessage();  
107                 if (errmsg != null) {  
108                     Log.e(TAG, errmsg);  
109                 } else {  
110                     e.printStackTrace();  
111                 }  
112             }  
113             if (process != null) process.destroy();  
114         }  
115         return commandResult;  
116     }  
117       
118 }