Spring 기본 @(어노테이션) 활용

Spring에서 .xml 에서 메핑하지 않고

@을 사용해서 로그인 / 글 목록 출력 / 글 확인 / 글 작성

 

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
         xmlns="https://jakarta.ee/xml/ns/jakartaee" 
         xsi:schemaLocation="https://jakarta.ee/xml/ns/jakartaee https://jakarta.ee/xml/ns/jakartaee/web-app_6_0.xsd"
         version="6.0">
	<servlet>
		<servlet-name>ds</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
	</servlet>
	<servlet-mapping>
		<servlet-name>ds</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
</web-app>

---

ds-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans
						http://www.springframework.org/schema/beans/spring-beans.xsd
						http://www.springframework.org/schema/context
						http://www.springframework.org/schema/context/spring-context-4.2.xsd">


    <context:component-scan base-package="com.nsd.app.biz.member"/>
    <context:component-scan base-package="com.nsd.app.biz.board"/>
	<context:component-scan base-package="com.nsd.app.view.member"/>
    <context:component-scan base-package="com.nsd.app.view.board"/>
    
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="viewResolver">
		<property name="prefix" value="/WEB-INF/views/"/>
		<property name="suffix" value=".jsp"/>		
	</bean>
</beans>

---

LoginController.java

package com.nsd.app.view.member;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.nsd.app.biz.member.MemberDAO;
import com.nsd.app.biz.member.MemberDTO;

import jakarta.servlet.http.HttpSession;

@Controller("login")
public class LoginController {

	@RequestMapping("login.do")
	public String login(){
		return "redirect:login.jsp";
	}
	
	@RequestMapping("/loginCheck.do")
	public String lognin(MemberDAO memberDAO, MemberDTO memberDTO,Model model, HttpSession session) throws Exception {
		System.out.println(memberDTO);
		System.out.println("model = "+model);
		memberDTO = memberDAO.SelectOne(memberDTO);
		System.out.println(memberDTO);
		if(memberDTO!=null) {
			session.setAttribute("mid", memberDTO.getMember_id());
			model.addAttribute("error", "success");
			model.addAttribute("title", "로그인에 성공");
			model.addAttribute("msg", "로그인 되었습니다.");
			model.addAttribute("path", "main.do");
		}
		else {
			model.addAttribute("error", "error");
			model.addAttribute("title", "로그인에 실패하셨습니다..ㅠ");
			model.addAttribute("msg", "로그인 실패");
			model.addAttribute("path", "login.do");
		}
		
		System.out.println(model);
		return "info";
	}
	
	
}

---

BoardViewPageController.java

package com.nsd.app.view.board;

import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.nsd.app.biz.board.BoardDAO;
import com.nsd.app.biz.board.BoardDTO;

@Controller("viewPage")
public class BoardViewPageController {

	@RequestMapping("/main.do")
	public String mainPage(BoardDAO boardDAO, Model model, BoardDTO boardDTO) throws Exception {
		List<BoardDTO> datas = boardDAO.SelectAll(boardDTO);
		model.addAttribute("datas", datas);
		return "main";
	}
	
	@RequestMapping("/view.do")
	public String handleRequest(BoardDAO boardDAO, BoardDTO boardDTO, Model model) throws Exception {
		boardDTO = boardDAO.SelectOne(boardDTO);
		model.addAttribute("data", boardDTO);
		return "view";
	}

}

---

BoardWriterController.java

package com.nsd.app.view.board;


import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

import com.nsd.app.biz.board.BoardDAO;
import com.nsd.app.biz.board.BoardDTO;

import jakarta.servlet.http.HttpSession;

@Controller("writer")
public class BoardWriterController{

	@RequestMapping("/write.do")
	public String BoardWriterPage() throws Exception {
		return "redirect:write.jsp";
	}

	@RequestMapping("/writeController.do")
	public String handleRequest(HttpSession session, BoardDAO boardDAO, BoardDTO boardDTO, Model model) throws Exception {
		String mid = (String)session.getAttribute("mid");
		if(mid != null) {
			
			boardDTO.setBoard_writer(mid);
			
			boolean flag = boardDAO.insert(boardDTO);
			if(flag) {
				model.addAttribute("error", "success");
				model.addAttribute("title", "글작성 성공!");
				model.addAttribute("msg", "글작성에 성공하였습니다.");
			}
			else {				
				model.addAttribute("error", "error");
				model.addAttribute("title", "글작성 실패!");
				model.addAttribute("msg", "작성을 실패했습니다. \n 관리자에게 문의해주세요.");
			}
			model.addAttribute("path", "main.do");
		}
		else {
			model.addAttribute("error", "error");
			model.addAttribute("title", "로그인해주세요");
			model.addAttribute("msg", "로그인 후 이용 가능한 서비스 입니다.");
			model.addAttribute("path", "login.do");
		}
		
		return "info";
	}
	
}

 

 

이전에 쓰던 .jsp / .java 로 했던 프로젝트를 보다

Spring을 배우니 코드가 점점 간결해지는 것이 눈에 보이니 신기한 것 같다 생각한다.