Android 用java语言执行Shell命令

调用：

 new ShellUtils().execCommand("ifconfig eth0 192.168.1.202 netmask 255.255.255.0 "                       ,true,true);

ShellUtils.class

package com.example.sz.ip;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";    //这一段看个人情况，我不需要    /*public ShellUtils() {        throw new AssertionError();    }*/    /**     * 查看是否有了root权限     *     * @return     */    public static boolean checkRootPermission() {        return execCommand("echo root", true, false).result == 0;    }    /**     * 执行shell命令，默认返回结果     *     * @param command     *            command     * @param     * //运行是否需要root权限     * @return     * @see ShellUtils#execCommand(String[], boolean, boolean)     */    public static CommandResult execCommand(String command, boolean isRoot) {        return execCommand(new String[] { command }, isRoot, true);    }    /**     * 执行shell命令，默认返回结果     *     * @param commands     *            command list     * @param     * //运行是否需要root权限     * @return     * @see ShellUtils#execCommand(String[], boolean, boolean)     */    public static CommandResult execCommand(List commands,                                            boolean isRoot) {        return execCommand(                commands == null ? null : commands.toArray(new String[] {}),                isRoot, true);    }    /**     * 执行shell命令，默认返回结果     *     * @param commands     *            command array     * @param     * //运行是否需要root权限     * @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     * //运行是否需要root权限     * @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     * //运行是否需要root权限     * @param     * //是否需要返回运行结果     * @return     * @see ShellUtils#execCommand(String[], boolean, boolean)     */    public static CommandResult execCommand(List commands,                                            boolean isRoot, boolean isNeedResultMsg) {        return execCommand(                commands == null ? null : commands.toArray(new String[] {}),                isRoot, isNeedResultMsg);    }    /**     * execute shell commands     *     * @param commands     *            command array     * @param     * //运行是否需要root权限     * @param     * //是否需要返回运行结果     * @return      *         if isNeedResultMsg is false, {@link CommandResult#successMsg}     *         is null and {@link CommandResult#errorMsg} is null.
     *         if {@link CommandResult#result} is -1, there maybe some     *         excepiton.
     *         
     */    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());    }    /**     * 运行结果     *      * {@link CommandResult#result} means result of command, 0 means normal,     * else means error, same to excute in linux shell
     * {@link CommandResult#successMsg} means success message of command     * result
     * {@link CommandResult#errorMsg} means error message of command result
     * 
     *     * @author Trinea     *         2013-5-16     */    public static class CommandResult {        /** 运行结果 **/        public int result;        /** 运行成功结果 **/        public String successMsg;        /** 运行失败结果 **/        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;        }    }}

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