Java调用Linux命令

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调用案例： /hello?a=/bin/sh&b=-c&cmd=ps -ef

代码： @RequestMapping("/hello") public String index(String a,String b,String cmd) { //sudo xvfb-run wkhtmltopdf --enable-forms 你的URL 文件地址 //String[] cmdList = new String[]{"sudo xvfb-run wkhtmltopdf --enable-forms https://www.baidu.com /root/java/web/testbaidu.pdf"}; //mkdir /root/java/web/a //String[] cmdList = new String[]{"/bin/sh","-c",cmd}; String[] cmdList = new String[]{a,b,cmd}; System.out.println(cmd); String res = HtmlToPdf.executeNewFlow(cmdList); return res; }

`package com.demo.pdf;

import java.io.*;

public class HtmlToPdf { public static String executeNewFlow(String[] commands) { try { Process process = Runtime.getRuntime().exec(commands);

        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line = null;
        while ((line = reader.readLine()) != null) {
            System.out.println(line);
        }
        // waitFor 阻塞等待 异步进程结束，并返回执行状态，0代表命令执行正常结束。
        System.out.println(process.waitFor());
    } catch (IOException | InterruptedException e) {
        e.printStackTrace();
    }
    return "";
}

} `