MvcWeb-day04

MvcWeb/AbstractAction.java

@@ -0,0 +1,22 @@
+package common.controller;
+
+public abstract class AbstractAction implements Action{
+	//execute()추상 메서드 가지고 있음
+	private String viewPage;//보여줄 뷰페이지 이름
+	private boolean isRedirect;
+	//redirect방식의 이동이면 true, forward방식 이동이면 false값을 갖는다
+
+	//setter, getter 구성
+	public String getViewPage() {
+		return viewPage;
+	}
+	public void setViewPage(String viewPage) {
+		this.viewPage = viewPage;
+	}
+	public boolean isRedirect() {
+		return isRedirect;
+	}
+	public void setRedirect(boolean isRedirect) {
+		this.isRedirect = isRedirect;
+	}
+}//////////////////////////////////

MvcWeb/Action.java

@@ -0,0 +1,9 @@
+package common.controller;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public interface Action {
+
+	void execute(HttpServletRequest req, HttpServletResponse res) throws Exception;
+}

MvcWeb/EncodingFilter.java

@@ -0,0 +1,37 @@
+package common.filter;
+
+import java.io.IOException;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.http.HttpFilter;
+
+/**
+ * Servlet Filter implementation class EncodingFilter
+ */
+@WebFilter("/*")
+public class EncodingFilter extends HttpFilter implements Filter {
+
+
+	public void destroy() {
+
+	}
+	//사전처리나 사후처리 할 일이 있으면 doFilter()메서드 안에서 구현한다.
+	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+		//post방식일 때 한글 처리를 사전에 처리해보자.
+		request.setCharacterEncoding("utf-8");
+		System.out.println("EncodingFilter doFilter()호출됨....");
+
+		chain.doFilter(request, response);
+	}
+
+
+	public void init(FilterConfig fConfig) throws ServletException {
+
+	}
+
+}

MvcWeb/FrontController.java

@@ -0,0 +1,132 @@
+package common.controller;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Properties;
+import java.util.Set;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebInitParam;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+/*FrontController : *.do 패턴의 모든 요청을 받아들인다.
+ * - Command.properties 파일에 있는 매핑 정보를 읽어들여 해당 요청uri와 매핑되어 있는
+ *   SubController(XXXAction)을 찾아 객체화 한 뒤 해당 객체의 메소드(execute)를 호출한다.
+ * - 서브 컨트롤러는 해당 작업을 수행한 뒤에 다시 FrontController로 돌아와 보여줘야 할 View
+ *   페이지(JSP) 정보를 넘긴다.
+ * - FrontController는 해당 뷰페이지로 이동시킨다. (forward방식 이동 or redirect방식 이동)    
+ * */
+//Command.properties파일의 절대경로를 본인의 경로에 맞게 수정해야 함/////////////////
+@WebServlet(
+		urlPatterns = { "*.do" }, 
+		initParams = { 
+				@WebInitParam(name = "config", 
+						value = "C:\\myjava\\Workspace\\MvcWeb\\src\\main\\webapp\\WEB-INF\\Command.properties")
+		})
+public class FrontController extends HttpServlet {
+	private static final long serialVersionUID = 1L;
+
+	private HashMap<String, Object> cmdMap=new HashMap<>();
+
+	@Override
+	public void init(ServletConfig conf) throws ServletException{
+		System.out.println("init()호출됨...");
+		String props=conf.getInitParameter("config");
+		System.out.println("props=="+props);
+
+		Properties pr=new Properties();
+		try {
+			FileInputStream fis=new FileInputStream(props);
+			pr.load(fis);
+			//Command.properties파일 정보를 Properties객체로 옮긴다.
+			if(fis!=null) fis.close();
+			//String val=pr.getProperty("/index.do");
+			//System.out.println("val="+val);
+			Set<Object> set=pr.keySet();
+			if(set==null) return;
+			for(Object key:set) {
+				String cmd=key.toString();//key값 "/index.do"
+				String className=pr.getProperty(cmd);//"common.controller.IndexAction"
+				if(className!=null) {
+					className=className.trim();//앞뒤 공백 제거
+				}
+				System.out.println(cmd+": "+className);
+				//className을 실제 객체로 인스턴스화
+				Class<?> cls=Class.forName(className);
+				Object cmdInstance =cls.getDeclaredConstructor().newInstance();
+				/////////////////////////////
+				cmdMap.put(cmd, cmdInstance);
+				//////////////////////////////
+			}//for------
+			System.out.println("cmdMap.size(): "+cmdMap.size());
+		}catch(Exception e) {
+			e.printStackTrace();
+			throw new ServletException(e);
+		}
+
+	}//--------------------------------------
+
+	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		process(request, response);
+	}
+	private void process(HttpServletRequest req, HttpServletResponse res) throws ServletException,IOException{
+		//1. 클라이언트의 요청 URI를 분석해보자.
+		/*
+		String uri=req.getRequestURI();
+		System.out.println("uri: "+uri);//   "/MvcWeb/index.do"
+		String myctx=req.getContextPath(); //"/MvcWeb"
+		int len=myctx.length(); //7
+		String cmd=uri.substring(len);
+		*/
+		String cmd=req.getServletPath();
+		System.out.println("cmd===>"+cmd);
+
+		Object instance =cmdMap.get(cmd);
+		if(instance==null) {
+			System.out.println("Action이 null");
+			throw new ServletException("Action이 null입니다");
+		}
+		System.out.println("instance==>"+instance);
+		///////////////////////////////////////////////////
+		AbstractAction action=(AbstractAction)instance;
+		//////////////////////////////////////////////////
+
+		try {
+			//////////////////////////
+			action.execute(req, res);
+			//execute()는 컨트롤러 로직을 수행 한 뒤 뷰페이지랑 이동방식을 지정한다
+			String viewPage=action.getViewPage();
+			boolean isRedirect=action.isRedirect();
+			System.out.println("viewPage: "+viewPage);
+			if(viewPage==null) {
+				viewPage="index.jsp";
+			}
+
+			if(isRedirect) {
+				//redirect방식으로 페이지 이동
+				res.sendRedirect(viewPage);
+			}else {
+				//forward방식으로 이동
+				RequestDispatcher disp=req.getRequestDispatcher(viewPage);
+				disp.forward(req, res);				
+			}
+
+		}catch(Exception e) {
+			e.printStackTrace();
+			throw new ServletException(e);
+		}
+	}//-----------------------------------------
+
+	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+		process(request, response);
+	}
+
+}
+
+

MvcWeb/IdCheckAction.java

@@ -0,0 +1,36 @@
+package user.controller;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import common.controller.AbstractAction;
+import user.model.UserDAOMyBatis;
+
+public class IdCheckAction extends AbstractAction {
+
+	@Override
+	public void execute(HttpServletRequest req, HttpServletResponse res) throws Exception {
+		String method=req.getMethod();
+		if(method.equalsIgnoreCase("get")) {
+
+			this.setViewPage("member/idCheck.jsp");
+			this.setRedirect(false);
+		}else {
+			String userid=req.getParameter("userid");
+
+			UserDAOMyBatis dao=new UserDAOMyBatis();
+
+			boolean isUse=dao.idCheck(userid);
+
+			String result=(isUse)? "ok": "no";
+
+			req.setAttribute("result", result);
+			req.setAttribute("userid", userid);
+
+			this.setViewPage("member/idCheckResult.jsp");
+			this.setRedirect(false);			
+		}
+
+	}
+
+}

MvcWeb/IndexAction.java

@@ -0,0 +1,21 @@
+package common.controller;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+public class IndexAction extends AbstractAction {
+
+	@Override
+	public void execute(HttpServletRequest req, HttpServletResponse res)
+	throws Exception{
+		System.out.println("IndexAction의 execute()호출됨...");
+
+		req.setAttribute("msg", "안녕 Index?");
+
+		//뷰페이지 지정
+		this.setViewPage("/index.jsp");
+		//이동방식 지정
+		this.setRedirect(false);
+	}//-------------------------
+
+}////////////////////////////////////

MvcWeb/LoginAction.java

@@ -0,0 +1,18 @@
+package user.controller;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import common.controller.AbstractAction;
+
+public class LoginAction extends AbstractAction {
+
+	@Override
+	public void execute(HttpServletRequest req, HttpServletResponse res) throws Exception {
+
+
+		this.setViewPage("login/login.jsp");
+		this.setRedirect(false);
+	}
+
+}

MvcWeb/LoginCheckFilter.java

@@ -0,0 +1,58 @@
+package common.filter;
+
+import java.io.IOException;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.RequestDispatcher;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+import javax.servlet.annotation.WebFilter;
+import javax.servlet.http.HttpFilter;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpSession;
+
+import user.model.UserVO;
+
+/**
+ * Servlet Filter implementation class LoginCheckFilter
+ */
+@WebFilter(urlPatterns = {"/user/*","/admin/*"})
+public class LoginCheckFilter extends HttpFilter implements Filter {
+
+
+	public void destroy() {
+
+	}
+
+
+	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+		//세션에 저장되어 있는 loginUser가 있는지 체크해서
+		//없다면==>"로그인해야 이용할 수 있어요" 보여주고 return;
+		HttpServletRequest req=(HttpServletRequest)request;
+		HttpSession session=req.getSession();
+		UserVO user=(UserVO) session.getAttribute("loginUser");
+		if(user==null) {
+			String str="로그인해야 이용할 수 있어요";
+			String loc=req.getContextPath()+"/login.do";//절대경로
+
+			req.setAttribute("msg", str);
+			req.setAttribute("loc", loc);
+			RequestDispatcher disp=req.getRequestDispatcher("/message.jsp");
+			disp.forward(req, response);			
+			return;
+		}
+
+
+		//로그인 했다면 다음 필터로 넘어간다
+		chain.doFilter(request, response);
+	}
+
+
+	public void init(FilterConfig fConfig) throws ServletException {
+
+	}
+
+}

MvcWeb/LoginEndAction.java

@@ -0,0 +1,53 @@
+package user.controller;
+
+import javax.servlet.http.Cookie;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+
+import common.controller.AbstractAction;
+import user.model.NotUserException;
+import user.model.UserDAOMyBatis;
+import user.model.UserVO;
+
+public class LoginEndAction extends AbstractAction {
+
+	@Override
+	public void execute(HttpServletRequest req, HttpServletResponse res) throws Exception {
+		String userid=req.getParameter("userid");
+		String pwd=req.getParameter("pwd");
+		String saveId=req.getParameter("saveId");
+		if(userid==null||pwd==null||userid.trim().isEmpty()||pwd.trim().isEmpty()) {
+			this.setViewPage("login.do");
+			this.setRedirect(true);
+			return;
+		}
+		UserDAOMyBatis dao=new UserDAOMyBatis();
+		try {
+			UserVO loginUser=dao.loginCheck(userid, pwd);
+			//loginUser가 null이 아니라면 회원인증 받은 것이므로 세션에 loginUser를 저장하자
+			HttpSession session=req.getSession();
+			if(loginUser!=null) {
+				session.setAttribute("loginUser", loginUser);
+				//아이저장 체크박스에 체크했다면 => 쿠키에 해당 아이디를 저장하자
+				Cookie ck=new Cookie("uid",loginUser.getUserid());
+				if(saveId!=null) {
+					ck.setMaxAge(7*24*60*60);//7일간 유효
+				}else {
+					ck.setMaxAge(0);//쿠키 삭제
+				}
+				ck.setPath("/");
+				res.addCookie(ck);
+			}//if------
+			this.setViewPage("index.do");
+			this.setRedirect(true);
+
+		}catch(NotUserException e) {
+			req.setAttribute("msg", e.getMessage());
+			req.setAttribute("loc", "javascript:history.back()");
+			this.setViewPage("message.jsp");
+			this.setRedirect(false);
+		}
+	}//------------------------------------
+
+}