공부기록/Servlet JSP

Servlet-간단한 덧셈기 만들기

jhs0129 2021. 8. 21. 14:58
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
	<form action = "add" method = "post">
		<div>
			계산할 값을 입력하세요
		</div>
		<div>	
			<input type="text" name ="x">
			<input type="text" name ="y">
			<input type="submit" value="계산">			
		</div>
	</form>
</body>
</html>​
package com.jhs.web;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/add")
public class add extends HttpServlet{
	@Override
	protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		PrintWriter out = resp.getWriter();
		
		String x = req.getParameter("x");
		String y = req.getParameter("y");
		
		int result = Integer.parseInt(x) + Integer.parseInt(y);
		
		out.println("결과 값은 : " + result);
	}
}

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