[JSP] ch01-03. 서블릿 클래스 GET, POST 방식

1-3. 서블릿 클래스 Get, Post방식 전송

@WebServlet("/ch01/ex03/home/add")
public class DoGetPost extends HttpServlet {
    private static final long serialVersionUID = 1L;
    
    public void process(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        int num1 = 1;
        int num2 = 2;
        response.setContentType("text/html;charset=utf-8");
        PrintWriter out = response.getWriter();
        out.println("<h2>" + request.getMethod() + "</h2>");
        out.printf("<p>%d+%d=%d</p>", num1,num2,num1+num2);
    }
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        process(request, response);
    }
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        process(request, response);
    }
}

 

/ch01/ex03/home/add.html

<!DOCTYPE html>
<html lang="ko">
<head>
<title>adder</title>
<meta charset="utf-8">
</head>
<body>
<form action="add" method="get">
    <input type="submit" value="GET"/>
</form>
<form action="add" method="post">
    <input type="submit" value="POST"/>
</form>
</body>
</html>