Question

我尝试了许多不同的例子，但它没有用。

我真的很感激一些示例Java代码来运行shell脚本。

Answer 1

您需要Runtime.getRuntime（）。exec（...）。请参阅a very extensive example（不要忘记阅读前三页）。

请记住，Runtime.exec 不是shell ;如果你想执行一个shell脚本，你的命令行看起来像

/bin/bash scriptname

也就是说，你需要的shell二进制文件是完全限定的（虽然我怀疑/ bin总是在路径中）。如果

，你不能假设

myshell> foo.sh

跑，

Runtime.getRuntime.exec("foo.sh");

也会运行，因为您已经在第一个示例中的正在运行的shell中，但在Runtime.exec中没有。

一个经过测试的例子（在My Linux Machine（TM）上工作），从the previously mentioned article切换过去：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
public class ShellScriptExecutor {

    static class StreamGobbler extends Thread {
        InputStream is;

        String type;

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

        public void run() {
            try {
                InputStreamReader isr = new InputStreamReader(is);
                BufferedReader br = new BufferedReader(isr);
                String line = null;
                while ((line = br.readLine()) != null)
                    System.out.println(type + ">" + line);
            } catch (IOException ioe) {
                ioe.printStackTrace();
            }
        }
    }


    public static void main(String[] args) {
        if (args.length < 1) {
            System.out.println("USAGE: java ShellScriptExecutor script");
            System.exit(1);
        }

        try {
            String osName = System.getProperty("os.name");
            String[] cmd = new String[2];
            cmd[0] = "/bin/sh"; // should exist on all POSIX systems
            cmd[1] = args[0];

            Runtime rt = Runtime.getRuntime();
            System.out.println("Execing " + cmd[0] + " " + cmd[1] );
            Process proc = rt.exec(cmd);
            // any error message?
            StreamGobbler errorGobbler = new StreamGobbler(proc
                    .getErrorStream(), "ERROR");

            // any output?
            StreamGobbler outputGobbler = new StreamGobbler(proc
                    .getInputStream(), "OUTPUT");

            // kick them off
            errorGobbler.start();
            outputGobbler.start();

            // any error???
            int exitVal = proc.waitFor();
            System.out.println("ExitValue: " + exitVal);
        } catch (Throwable t) {
            t.printStackTrace();
        }
    }
}

Answer 2

Shell脚本test.sh代码

#!/bin/sh
echo "good"

Java代码执行shell脚本test.sh

      try {
            Runtime rt = Runtime.getRuntime();
            Process pr = rt.exec(new String[]{"/bin/sh", "./test.sh"});

            BufferedReader input = new BufferedReader(new InputStreamReader(pr.getInputStream()));
            String line = "";
            while ((line = input.readLine()) != null) {
                System.out.println(line);
            }
        } catch (Exception e) {
            System.out.println(e.toString());
            e.printStackTrace();
        }

需要示例Java代码来运行shell脚本

2 个答案: