Android中呼叫shell指令碼
阿新 • • 發佈:2019-02-01
大致需求是這樣:app中assert檔案下有一些配置檔案,指令碼檔案,要求在開機啟動後,將assert下的檔案拷貝到手機中,並執行shell指令碼檔案。
監聽開機廣播的不多說。
提供如下方法:
/***
* 將檔案拷貝到某個目錄下,要賦予這個目錄相應的許可權
* @param pkgCodePath
* @return
*/
private boolean upgradeRootPermission(String pkgCodePath) {
Process process = null;
DataOutputStream os = null ;
try {
String cmd = "chmod 777 " + pkgCodePath;
process = Runtime.getRuntime().exec("su"); // 切換到root帳號
os = new DataOutputStream(process.getOutputStream());
os.writeBytes(cmd + "\n");
os.writeBytes("exit\n");
os.flush();
process.waitFor();
} catch (Exception e) {
return false;
} finally {
try {
if (os != null) {
os.close();
}
process.destroy();
} catch (Exception e) {
}
}
return true;
}
/**
* 拷貝檔案
* @param context
* @param oldPath
* @param newPath
*/
private void copyData(Context context, String oldPath, String newPath) {
InputStream in = null;
FileOutputStream out = null;
File file = new File(newPath);
if (!file.exists()) {
try {
Log.d(TAG, "inStream: -------->>>>>>.");
in = context.getAssets().open(oldPath); // 從assets目錄下複製
Log.d(TAG, "inStream: .");
upgradeRootPermission("/data");//拷貝到data目錄下,data目錄必須給出相應的許可權
out = new FileOutputStream(file);
int length = -1;
byte[] buf = new byte[1024];
while ((length = in.read(buf)) != -1) {
out.write(buf, 0, length);
}
out.flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
if (out != null) {
try {
out.close();
} catch (IOException e1) {
e1.printStackTrace();
}
}
}
}
}
同時給大家提供一個呼叫shell指令碼的工具類
package com.example.administrator.test;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.List;
public class ShellUtils {
public static final String COMMAND_SU = "su";
public static final String COMMAND_SH = "sh";
public static final String COMMAND_EXIT = "exit\n";
public static final String COMMAND_LINE_END = "\n";
public ShellUtils() {
throw new AssertionError();
}
/**
* check whether has root permission
*
* @return
*/
public static boolean checkRootPermission() {
return execCommand("echo root", true, false).result == 0;
}
/**
* execute shell command, default return result msg
*
* @param command
* command
* @param isRoot
* whether need to run with root
* @return
* @see ShellUtils#execCommand(String[], boolean, boolean)
*/
public static CommandResult execCommand(String command, boolean isRoot) {
return execCommand(new String[] { command }, isRoot, true);
}
/**
* execute shell commands, default return result msg
*
* @param commands
* command list
* @param isRoot
* whether need to run with root
* @return
* @see ShellUtils#execCommand(String[], boolean, boolean)
*/
public static CommandResult execCommand(List<String> commands,
boolean isRoot) {
return execCommand(
commands == null ? null : commands.toArray(new String[] {}),
isRoot, true);
}
/**
* execute shell commands, default return result msg
*
* @param commands
* command array
* @param isRoot
* whether need to run with root
* @return
* @see ShellUtils#execCommand(String[], boolean, boolean)
*/
public static CommandResult execCommand(String[] commands, boolean isRoot) {
return execCommand(commands, isRoot, true);
}
/**
* execute shell command
*
* @param command
* command
* @param isRoot
* whether need to run with root
* @param isNeedResultMsg
* whether need result msg
* @return
* @see ShellUtils#execCommand(String[], boolean, boolean)
*/
public static CommandResult execCommand(String command, boolean isRoot,
boolean isNeedResultMsg) {
return execCommand(new String[] { command }, isRoot, isNeedResultMsg);
}
/**
* execute shell commands
*
* @param commands
* command list
* @param isRoot
* whether need to run with root
* @param isNeedResultMsg
* whether need result msg
* @return
* @see ShellUtils#execCommand(String[], boolean, boolean)
*/
public static CommandResult execCommand(List<String> commands,
boolean isRoot, boolean isNeedResultMsg) {
return execCommand(
commands == null ? null : commands.toArray(new String[] {}),
isRoot, isNeedResultMsg);
}
/**
* execute shell commands
*
* @param commands
* command array
* @param isRoot
* whether need to run with root
* @param isNeedResultMsg
* whether need result msg
* @return <ul>
* <li>if isNeedResultMsg is false, {@link CommandResult#successMsg}
* is null and {@link CommandResult#errorMsg} is null.</li>
* <li>if {@link CommandResult#result} is -1, there maybe some
* excepiton.</li>
* </ul>
*/
public static CommandResult execCommand(String[] commands, boolean isRoot,
boolean isNeedResultMsg) {
int result = -1;
if (commands == null || commands.length == 0) {
return new CommandResult(result, null, null);
}
Process process = null;
BufferedReader successResult = null;
BufferedReader errorResult = null;
StringBuilder successMsg = null;
StringBuilder errorMsg = null;
DataOutputStream os = null;
try {
process = Runtime.getRuntime().exec(isRoot ? COMMAND_SU : COMMAND_SH);
os = new DataOutputStream(process.getOutputStream());
for (String command : commands) {
if (command == null) {
continue;
}
// donnot use os.writeBytes(commmand), avoid chinese charset
// error
os.write(command.getBytes());
os.writeBytes(COMMAND_LINE_END);
os.flush();
}
os.writeBytes(COMMAND_EXIT);
os.flush();
result = process.waitFor();
// get command result
if (isNeedResultMsg) {
successMsg = new StringBuilder();
errorMsg = new StringBuilder();
successResult = new BufferedReader(new InputStreamReader(
process.getInputStream()));
errorResult = new BufferedReader(new InputStreamReader(
process.getErrorStream()));
String s;
while ((s = successResult.readLine()) != null) {
successMsg.append(s);
}
while ((s = errorResult.readLine()) != null) {
errorMsg.append(s);
}
}
} catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (os != null) {
os.close();
}
if (successResult != null) {
successResult.close();
}
if (errorResult != null) {
errorResult.close();
}
} catch (IOException e) {
e.printStackTrace();
}
if (process != null) {
process.destroy();
}
}
return new CommandResult(result, successMsg == null ? null
: successMsg.toString(), errorMsg == null ? null
: errorMsg.toString());
}
/**
* result of command
* <ul>
* <li>{@link CommandResult#result} means result of command, 0 means normal,
* else means error, same to excute in linux shell</li>
* <li>{@link CommandResult#successMsg} means success message of command
* result</li>
* <li>{@link CommandResult#errorMsg} means error message of command result</li>
* </ul>
*
* @author <a href="http://www.trinea.cn" target="_blank">Trinea</a>
* 2013-5-16
*/
public static class CommandResult {
/** result of command **/
public int result;
/** success message of command result **/
public String successMsg;
/** error message of command result **/
public String errorMsg;
public CommandResult(int result) {
this.result = result;
}
public CommandResult(int result, String successMsg, String errorMsg) {
this.result = result;
this.successMsg = successMsg;
this.errorMsg = errorMsg;
}
}
}
呼叫的方法非常簡單:
ShellUtils.CommandResult result = ShellUtils.execCommand(your command,是否root);