diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/ModelView.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/ModelView.java new file mode 100644 index 00000000..d67166d4 --- /dev/null +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/ModelView.java @@ -0,0 +1,17 @@ +package com.example.servlet.web.frontcontroller; + +import lombok.Getter; +import lombok.Setter; + +import java.util.HashMap; +import java.util.Map; + +@Getter @Setter +public class ModelView { + private String viewName; + private Map model = new HashMap<>(); + + public ModelView(String viewName) { + this.viewName = viewName; + } +} diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/MyView.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/MyView.java index 518c5aec..45a98ecb 100644 --- a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/MyView.java +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/MyView.java @@ -5,6 +5,7 @@ import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; +import java.util.Map; public class MyView { @@ -18,4 +19,14 @@ public class MyView { RequestDispatcher dispatcher = request.getRequestDispatcher(viewPath); dispatcher.forward(request, response); } + + public void render(Map model, HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + modelToRequestAttribute(model, request); + RequestDispatcher dispatcher = request.getRequestDispatcher(viewPath); + dispatcher.forward(request, response); + } + + private void modelToRequestAttribute(Map model, HttpServletRequest request) { + model.forEach(request::setAttribute); + } } diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/ControllerV3.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/ControllerV3.java new file mode 100644 index 00000000..12fdc011 --- /dev/null +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/ControllerV3.java @@ -0,0 +1,10 @@ +package com.example.servlet.web.frontcontroller.v3; + +import com.example.servlet.web.frontcontroller.ModelView; + +import java.util.Map; + +public interface ControllerV3 { + + ModelView process(Map paramMap); +} diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/FrontControllerServletV3.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/FrontControllerServletV3.java new file mode 100644 index 00000000..7e0c8e1f --- /dev/null +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/FrontControllerServletV3.java @@ -0,0 +1,63 @@ +package com.example.servlet.web.frontcontroller.v3; + +import com.example.servlet.web.frontcontroller.ModelView; +import com.example.servlet.web.frontcontroller.MyView; +import com.example.servlet.web.frontcontroller.v3.controller.MemberFormControllerV3; +import com.example.servlet.web.frontcontroller.v3.controller.MemberListControllerV3; +import com.example.servlet.web.frontcontroller.v3.controller.MemberSaveControllerV3; + +import javax.servlet.ServletException; +import javax.servlet.annotation.WebServlet; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.io.IOException; +import java.util.HashMap; +import java.util.Map; + +@WebServlet(name = "frontControllerServletV3", urlPatterns = "/front-controller/v3/*") +public class FrontControllerServletV3 extends HttpServlet { + + private final Map controllerMap = new HashMap<>(); + + // 요청 URI 와 controller 매핑 + public FrontControllerServletV3() { + controllerMap.put("/front-controller/v3/members/new-form", new MemberFormControllerV3()); + controllerMap.put("/front-controller/v3/members/save", new MemberSaveControllerV3()); + controllerMap.put("/front-controller/v3/members", new MemberListControllerV3()); + } + + @Override + protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + String requestURI = request.getRequestURI(); // 요청 URI + + ControllerV3 controller = controllerMap.get(requestURI); + + if (controller == null) { + response.setStatus(HttpServletResponse.SC_NOT_FOUND); + return; + } + + // paramMap + Map paramMap = createParamMap(request); + + ModelView mv = controller.process(paramMap); + String viewName = mv.getViewName(); // 논리 이름 new-form + MyView view = viewResolver(viewName); // 물리 이름 + + view.render(mv.getModel(), request, response); + } + + // 논리 이름을 물리 이름으로 변환 + private MyView viewResolver(String viewName) { + return new MyView("/WEB-INF/views/" + viewName + ".jsp"); + } + + // 넘어온 파라미터 값 꺼내기 + private Map createParamMap(HttpServletRequest request) { + Map paramMap = new HashMap<>(); + request.getParameterNames().asIterator() + .forEachRemaining(paramName -> paramMap.put(paramName, request.getParameter(paramName))); + return paramMap; + } +} diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberFormControllerV3.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberFormControllerV3.java new file mode 100644 index 00000000..9fbe0025 --- /dev/null +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberFormControllerV3.java @@ -0,0 +1,14 @@ +package com.example.servlet.web.frontcontroller.v3.controller; + +import com.example.servlet.web.frontcontroller.ModelView; +import com.example.servlet.web.frontcontroller.v3.ControllerV3; + +import java.util.Map; + +public class MemberFormControllerV3 implements ControllerV3 { + @Override + public ModelView process(Map paramMap) { + + return new ModelView("new-form"); + } +} diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberListControllerV3.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberListControllerV3.java new file mode 100644 index 00000000..9d93429c --- /dev/null +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberListControllerV3.java @@ -0,0 +1,22 @@ +package com.example.servlet.web.frontcontroller.v3.controller; + +import com.example.servlet.domain.member.Member; +import com.example.servlet.domain.member.MemberRepository; +import com.example.servlet.web.frontcontroller.ModelView; +import com.example.servlet.web.frontcontroller.v3.ControllerV3; + +import java.util.List; +import java.util.Map; + +public class MemberListControllerV3 implements ControllerV3 { + + private final MemberRepository memberRepository = MemberRepository.getInstance(); + + @Override + public ModelView process(Map paramMap) { + List members = memberRepository.findAll(); + ModelView mv = new ModelView("members"); + mv.getModel().put("members", members); + return mv; + } +} diff --git a/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberSaveControllerV3.java b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberSaveControllerV3.java new file mode 100644 index 00000000..7d0a8573 --- /dev/null +++ b/spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/v3/controller/MemberSaveControllerV3.java @@ -0,0 +1,26 @@ +package com.example.servlet.web.frontcontroller.v3.controller; + +import com.example.servlet.domain.member.Member; +import com.example.servlet.domain.member.MemberRepository; +import com.example.servlet.web.frontcontroller.ModelView; +import com.example.servlet.web.frontcontroller.v3.ControllerV3; + +import java.util.Map; + +public class MemberSaveControllerV3 implements ControllerV3 { + + private final MemberRepository memberRepository = MemberRepository.getInstance(); + + @Override + public ModelView process(Map paramMap) { + String username = paramMap.get("username"); + int age = Integer.parseInt(paramMap.get("age")); + + Member member = new Member(username, age); + memberRepository.save(member); + + ModelView mv = new ModelView("save-result"); + mv.getModel().put("member", member); + return mv; + } +}