#35 springboot: my springboot

springboot/embed/src/main/java/hello/MySpringBootMain.java

@@ -0,0 +1,13 @@
+package hello;
+
+import hello.boot.MySpringApplication;
+import hello.boot.MySpringBootApplication;
+
+@MySpringBootApplication
+public class MySpringBootMain {
+
+    public static void main(String[] args) {
+        System.out.println("MySpringBootMain.main");
+        MySpringApplication.run(MySpringBootMain.class, args);
+    }
+}

springboot/embed/src/main/java/hello/boot/MySpringApplication.java

@@ -0,0 +1,53 @@
+package hello.boot;
+
+import hello.spring.HelloConfig;
+import org.apache.catalina.Context;
+import org.apache.catalina.LifecycleException;
+import org.apache.catalina.connector.Connector;
+import org.apache.catalina.startup.Tomcat;
+import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
+import org.springframework.web.servlet.DispatcherServlet;
+
+import java.io.File;
+import java.util.List;
+
+public class MySpringApplication {
+
+    public static void run(Class configClass, String[] args) {
+        System.out.println("MySpringApplication.run args=" + List.of(args));
+
+        // 톰캣 설정
+        Tomcat tomcat = new Tomcat();
+        Connector connector = new Connector();
+        connector.setPort(8080);
+        tomcat.setConnector(connector);
+
+        // 스프링 컨테이너 생성
+        AnnotationConfigWebApplicationContext appContext = new AnnotationConfigWebApplicationContext();
+        appContext.register(configClass);
+
+        // 스프링 MVC 디스패처 서블릿 생성, 스프링 컨테이너 연결
+        DispatcherServlet dispatcher = new DispatcherServlet(appContext);
+
+        // 디스패처 서블릿 등록
+        Context context = tomcat.addContext("", "/");
+
+        File docBaseFile = new File(context.getDocBase());
+
+        if (!docBaseFile.isAbsolute()) {
+
+            docBaseFile = new File(((org.apache.catalina.Host) context.getParent()).getAppBaseFile(), docBaseFile.getPath());
+
+        }
+
+        docBaseFile.mkdirs();
+
+        tomcat.addServlet("", "dispatcher", dispatcher);
+        context.addServletMappingDecoded("/", "dispatcher");
+        try {
+            tomcat.start();
+        } catch (LifecycleException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

springboot/embed/src/main/java/hello/boot/MySpringBootApplication.java

@@ -0,0 +1,12 @@
+package hello.boot;
+
+import org.springframework.context.annotation.ComponentScan;
+
+import java.lang.annotation.*;
+
+@Target(ElementType.TYPE)
+@Retention(RetentionPolicy.RUNTIME)
+@Documented
+@ComponentScan
+public @interface MySpringBootApplication {
+}

springboot/embed/src/main/java/hello/spring/HelloConfig.java

@@ -3,7 +3,7 @@ package hello.spring;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-@Configuration
+//@Configuration
 public class HelloConfig {
 
     @Bean