spring mvc : HandlerMapping, HandlerAdapter

spring-mvc/servlet/src/main/java/com/example/servlet/web/frontcontroller/MyView.java

@@ -29,4 +29,5 @@ public class MyView {
     private void modelToRequestAttribute(Map<String, Object> model, HttpServletRequest request) {
         model.forEach(request::setAttribute);
     }
+
 }

spring-mvc/servlet/src/main/java/com/example/servlet/web/springmvc/old/MyHttpRequestHandler.java

@@ -0,0 +1,17 @@
+package com.example.servlet.web.springmvc.old;
+
+import org.springframework.stereotype.Component;
+import org.springframework.web.HttpRequestHandler;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+@Component("/springmvc/request-handler")
+public class MyHttpRequestHandler implements HttpRequestHandler {
+    @Override
+    public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        System.out.println("MyHttpRequestHandler.handleRequest");
+    }
+}

spring-mvc/servlet/src/main/java/com/example/servlet/web/springmvc/old/OldController.java

@@ -0,0 +1,17 @@
+package com.example.servlet.web.springmvc.old;
+
+import org.springframework.stereotype.Component;
+import org.springframework.web.servlet.ModelAndView;
+import org.springframework.web.servlet.mvc.Controller;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Component("/springmvc/old-controller")
+public class OldController implements Controller {
+    @Override
+    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
+        System.out.println("OldController.handleRequest");
+        return null;
+    }
+}