Android之应用中执行Linux命令

http://www.2cto.com/kf/201303/196718.html

下面，我以修改某一文件的权限为777为例： /** 执行 Linux命令，并返回执行结果。 */ public static String exec(String[] args) { String result = ""; ProcessBuilder processBuilder = new ProcessBuilder(args); Process process = null; InputStream errIs = null; InputStream inIs = null; try { ByteArrayOutputStream baos = new ByteArrayOutputStream(); int read = -1; process = processBuilder.start(); errIs = process.getErrorStream(); while ((read = errIs.read()) != -1) { baos.write(read); } baos.write('\n'); inIs = process.getInputStream(); while ((read = inIs.read()) != -1) { baos.write(read); } byte[] data = baos.toByteArray(); result = new String(data); } catch (IOException e) { e.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } finally { try { if (errIs != null) { errIs.close(); } if (inIs != null) { inIs.close(); } } catch (IOException e) { e.printStackTrace(); } if (process != null) { process.destroy(); } } return result; } 下面在我们需要的地方调用上面函数即可： String[] args = { "chmod", "777", "(文件路径)"}; exec(args);

package com.java2novice.processbuilder; import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.List; public class MyMultipleCommandsEx {     public static void main(String a[]){                 InputStream is = null;        ByteArrayOutputStream baos = null;        List commands = new ArrayList();        commands.add("ls");        commands.add("-l");        commands.add("/Users/java2novice/");        ProcessBuilder pb = new ProcessBuilder(commands);        try {            Process prs = pb.start();            is = prs.getInputStream();            byte[] b = new byte[1024];            int size = 0;            baos = new ByteArrayOutputStream();            while((size = is.read(b)) != -1){                baos.write(b, 0, size);            }            System.out.println(new String(baos.toByteArray()));        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } finally{            try {                if(is != null) is.close();                if(baos != null) baos.close();            } catch (Exception ex){}        }    }}

http://blog.csdn.net/qiujuer/article/details/38086071

更多相关文章

随机推荐