shell java 執行

java shell 指令 

/**
 * 
 * @author baoyou E-mail:[email protected]
 * @version 2016年11月2日 下午1:54:49
 * desc:
 */
public class ShellProcess {

    private static ShellProcess instance;

    public static ShellProcess getInstance() {
        if (instance == null) {
            synchronized (ShellProcess.class) {
                if (instance == null) {
                    instance = new ShellProcess();
                }
            }
        }
        return instance;
    }

    /**
     * 執行相應shell腳本
     * @param args 執行腳本的參數，[0]path:shell腳本路徑；[1~n]腳本入參
     * @return     傳回碼，0：成功  1：失敗
     */
    public int runShell(String[] args) {
        int runRes = SystemGlobal.FAILED;
        try {
            Process process = Runtime.getRuntime().exec(args);//調用相應shell腳本
            new StreamGobbler(process.getInputStream(), StreamGobbler.INFO).start();
            new StreamGobbler(process.getErrorStream(), StreamGobbler.ERROR).start();
            runRes = process.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return runRes;
    }

    /**
     * 執行相應shell指令
     * @param cmd 執行的指令
     * @return    傳回碼，0：成功  1：失敗
     */
    public int runShell(String cmd) {
        return runShell(cmd);
    }

    /**
     * 自動根據運作時環境執行shell指令
     * @param args shell指令以空格分割後的list
     * @return     傳回碼，0：成功  1：失敗
     */
    public int runShell(List<String> args) {
        int runRes = SystemGlobal.FAILED;
        try {
            ProcessBuilder pb = new ProcessBuilder(args);
            Process process = pb.start();
            new StreamGobbler(process.getInputStream(), StreamGobbler.INFO).start();
            new StreamGobbler(process.getErrorStream(), StreamGobbler.ERROR).start();
            runRes = process.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return runRes;
    }

    /**
     * 執行shell指令，并擷取傳回結果
     * @param args shell指令以空格分割後的list
     * @return     執行shell指令後的傳回結果（按行分割後的list），如果發生異常，傳回空List
     */
    public List<String> runShellWithResult(List<String> args) {
        List<String> results = new ArrayList<String>();
        try {
            ProcessBuilder pb = new ProcessBuilder(args);
            Process process = pb.start();
            BufferedReader br = new BufferedReader(new InputStreamReader(process.getInputStream()));
            String data = null;
            while ((data = br.readLine()) != null) {
                results.add(data);
            }
            new StreamGobbler(process.getInputStream(), StreamGobbler.INFO).start();
            new StreamGobbler(process.getErrorStream(), StreamGobbler.ERROR).start();
            process.waitFor();
        } catch (Exception e) {
            e.printStackTrace();
            return new ArrayList<String>();
        }
        return results;
    }

}      

package com.taskschedule.util;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import org.apache.log4j.Logger;

/**
 * 
 * @author baoyou E-mail:[email protected]
 * @version 2016年11月2日 下午1:54:57
 * desc:
 */
public class StreamGobbler extends Thread {
    private InputStream is;
    private int type;
    private static Logger logger = Logger.getLogger(StreamGobbler.class);

    public static final int INFO = 0;
    public static final int ERROR = 1;

    public StreamGobbler(InputStream is, int type) {
        this.is = is;
        this.type = type;
    }

    @Override
    public void run() {
        try {
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String line = null;
            while ((line = br.readLine()) != null) {
                if (type == INFO) {
                    logger.info(line);
                } else if (type == ERROR) {
                    logger.error(line);
                }
            }
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }
}
      

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