독립 실행형 서블릿 애플리케이션 : 프론트 컨트롤러 전환, 매핑과 바인딩

gvo-cheryl · Mar 9, 2023 · 127b5f8 · 127b5f8
1 parent c2d84fb
commit 127b5f8
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Showing 2 changed files with 35 additions and 8 deletions.
diff --git a/src/main/java/tobyspring/helloboot/HelloController.java b/src/main/java/tobyspring/helloboot/HelloController.java
@@ -3,10 +3,8 @@
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
 
-@RestController
 public class HelloController {
 
-    @GetMapping("/hello")
     public String hello(String name){
         return "Hello " + name;
     }

diff --git a/src/main/java/tobyspring/helloboot/HellobootSelfApplication.java b/src/main/java/tobyspring/helloboot/HellobootSelfApplication.java
@@ -3,6 +3,10 @@
 import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
 import org.springframework.boot.web.server.WebServer;
 import org.springframework.boot.web.servlet.server.ServletWebServerFactory;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
 
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServlet;
@@ -14,17 +18,42 @@ public class HellobootSelfApplication {
 
     public static void main(String[] args) {
         ServletWebServerFactory serverFactory = new TomcatServletWebServerFactory();
+
+        // 서블릿 컨테이너 띄우기
         WebServer webServer = serverFactory.getWebServer(servletContext -> {
-            servletContext.addServlet("hello", new HttpServlet() {
+
+            // 서블릿 등록
+            servletContext.addServlet("frontController", new HttpServlet() {
+
+                final HelloController helloController = new HelloController();
+
                 @Override
                 protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
-                    resp.setStatus(200);
-                    resp.setHeader("Content-Type", "text/plain");
-                    resp.getWriter().println("Hello Servlet");
+                    // 인증, 보안, 다국어 및 공통 기능 처리
+                    if (req.getRequestURI().equals("/hello") && req.getMethod().equals(HttpMethod.GET.name())){
+
+                        // 서블릿 요청 처리 - request
+                        String name = req.getParameter("name");
+
+                        // 컨트롤러 매핑
+                        // 바인딩 : 직접적인 웹 요청에 데이터 타입에 맞게 전달
+                        String ret = helloController.hello(name);
+
+                        // 서블릿 요청 처리 - response
+                        resp.setStatus(HttpStatus.OK.value());
+                        resp.setHeader(HttpHeaders.CONTENT_TYPE, MediaType.TEXT_PLAIN_VALUE);
+                        resp.getWriter().println(ret);
+
+                    } else if (req.getRequestURI().equals("/user")) {
+                        //
+                    } else {
+                        resp.setStatus(HttpStatus.NOT_FOUND.value());
+                    }
+
                 }
-            }).addMapping("/hello");
+            }).addMapping("/*"); // 슬래시 이후 모든 경로를 처리한다.
         });
-        webServer.start(); // Tomcat 서블릿 컨테이네 동작
+        webServer.start(); // Tomcat 서블릿 컨테이너 동작
 
     }