[JSP] 환율 계산기 만들기 [서블릿(Servlet)을 이용한 환율 계산기 만들기]
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◎ Java/JSP📋
1. 환율 계산기 만들기 - CalServlet.java package ex01; 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("/calc") public class CalServlet extends HttpServlet{ private static ..