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day49 - JSP(model2)KIC/JSP 2021. 8. 25. 01:27반응형
web.xml 에서
<servlet-mapping>
<servlet-name>controllerExt</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>를 통해 *.do를 받으면 controllerExt와 연동한다.
[controllerExt.properties]
-> hello.do를 입력할 시
/hello.do=handler.HelloHandler /list.do=handler.ListHandler /memberInput.do=handler.MemberInputHandler[helloHandler.java]
-> /view/hello.jsp 가 실행되고,
package handler; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import controller.CommandHandler; public class HelloHandler implements CommandHandler{ @Override public String process(HttpServletRequest request, HttpServletResponse response) throws Exception { // TODO Auto-generated method stub request.setAttribute("hello", "hello 테스트 입니다."); return "/view/hello.jsp"; } }[hello.jsp]
-> 가 실행된다.
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Insert title here</title> </head> <body> ${hello} <br> hello 입니다. </body> </html>[ControllerPathMethod.java]
package controller; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Properties; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * Servlet implementation class ControllerExt */ public class ControllerPathMethod extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public ControllerPathMethod() { super(); // TODO Auto-generated constructor stub } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub processPro(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub processPro(request, response); } public void processPro(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException{ String command = request.getRequestURI(); System.out.println("1:"+command); if(command.indexOf(request.getContextPath())==0) { command = command.substring(request.getContextPath().length()); command = command.substring(command.lastIndexOf("/") + 1); } System.out.println("2:"+command); String viewPage = null; Class[] cParam = {HttpServletRequest.class, HttpServletResponse.class}; try { viewPage = (String)this.getClass() .getMethod(command, cParam) .invoke(this, request, response); }catch(Exception e) { e.printStackTrace(); } if(viewPage !=null) { RequestDispatcher dispatcher = request.getRequestDispatcher(viewPage); dispatcher.forward(request, response); } } public String InputForm(HttpServletRequest request, HttpServletResponse response) throws Exception { // TODO Auto-generated method stub request.setAttribute("InputForm", "InputForm 테스트 입니다."); return "/view/InputForm.jsp"; } }300x250'KIC > JSP' 카테고리의 다른 글
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