java调用shell脚本

原创已于 2022-04-10 15:27:55 修改 · 436 阅读

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#java

于 2022-04-10 15:25:41 首次发布

该博客展示了如何在Java中根据操作系统的类型执行Shell脚本。通过`Runtime.getRuntime().exec()`方法调用shell命令，并读取脚本的输出。同时，代码中包含了检查系统是否为Windows或Linux的辅助方法。

package com.example.lightdemo.shell;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.io.*;
import java.util.concurrent.TimeUnit;

@RestController
public class JShell {
    @GetMapping("shell/exec")
    public String execShell() {
        try {
//            TimeUnit.SECONDS.sleep(3);
            System.getProperty("os.name");
            String path = JShell.class.getClassLoader().getResource("").getPath();
            String shellPath = null;
            if (isWindows()) {
                shellPath = path.replaceFirst(":","");
            } else {
                shellPath = path;
            }

            Process pcs = Runtime.getRuntime().exec("sh " + shellPath + "shell/test.sh" + " 112x 8899");
            int exitValue = pcs.waitFor();
            if (0 != exitValue) {
                System.out.println("error call shell. exit " + exitValue);
            }

            BufferedReader reader = new BufferedReader(new InputStreamReader(pcs.getInputStream()));
            String line = null;
            while ((line = reader.readLine()) != null) {
                System.out.println(line);
            }
            System.out.println("-------------------------");

        } catch (IOException exception) {
            exception.printStackTrace();
        }catch (InterruptedException ex) {
            ex.printStackTrace();
        }
        return "success.";
    }

    public static boolean isWindows() {
        return System.getProperty("os.name").toLowerCase().indexOf("windows")>=0;
    }

    public static boolean isLinux() {
        return System.getProperty("os.name").toLowerCase().indexOf("linux")>=0;
    }
}