Java exec exec(String program, String... args)

Description

exec

License

Apache License

Declaration

public static Process exec(String program, String... args) 

Method Source Code

//package com.java2s;
/*//from  w ww.ja  v  a2 s  .  com
 * Copyright 2014-2015 ieclipse.cn.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

public class Main {
    public static Process exec(String program, List<String> args) {
        ProcessBuilder builder = new ProcessBuilder();
        File f = new File(program);
        if (f != null && f.getParentFile() != null && f.getParentFile().exists()) {
            builder.directory(f.getParentFile());
        }

        String cmd = String.format("\"%s\"", f.getName());
        // String cmd = f.getName();
        if (args != null) {
            args.add(0, cmd);
            builder.command(args);
        } else {
            builder.command(cmd);
        }
        System.out.println(builder.command());
        try {
            Process p = builder.start();
            return p;
        } catch (IOException e) {
            e.printStackTrace();
            try {
                System.out.println(new String(e.toString().getBytes("utf-8"), "gbk"));
            } catch (UnsupportedEncodingException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
            return null;
        }
    }

    public static Process exec(String program, String... args) {
        if (args != null) {
            List<String> array = new ArrayList<String>(args.length);
            for (int i = 0; i < args.length; i++) {
                array.add(args[i]);
            }
            return exec(program, array);
        }
        return exec(program, (List<String>) null);
    }

    public static Process exec(String program) {
        return exec(program, (List<String>) null);
    }
}

Related

1. exec(String command)
2. exec(String command, String workingDir)
3. exec(String command, String[] args_, String[] environment)
4. exec(String command[], boolean stop)
5. exec(String exec)
6. exec(String pwd, boolean quiet, String... command)
7. exec(String... _command)
8. exec(String... args)
9. exec(String... cmd)