Spring mvc Component scan requestmapping not working - spring

Question

I am new to Spring and Spring-MVC. I am using 4.3.3.RELEASE.I have generated project using maven-webapp-archetype and added sping dependencies and dispatcher-servelt later.
As per my web.xml I have initialized Dispatcher-servlet using spring-dispatcher-servlet.xml
I have already tried
Added inet.controller.* instead inet.controller in base-package
Changing URL pattern to /* from /
Adding to dispatcher servlet
but still when I try http://loclahost:8080/inet/welcome server is throwing 404.
Web.xml
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>spring-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
Spring-dispatcher-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<mvc:default-servlet-handler />
<context:component-scan base-package="inet.controller"/>
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
Below is my directory structure:
HelloController
package inet.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class HelloController {
#RequestMapping("/welcome")
public ModelAndView helloWorld() {
ModelAndView modelAndView = new ModelAndView("helloPage");
modelAndView.addObject("message", "Hi All");
return modelAndView;
}
}

Answer 1

You need to tell the spring how to find the controllers from urls that you are hitting. So it what is missing in your configuration
to do that add <mvc:annotation-driven/> tag in your dispatcher xml configuration. it adds some mapping handlers
RequestMappingHandlerMapping
RequestMappingHandlerAdapter
ExceptionHandlerExceptionResolver
And some necessary message converters for you.
What does <mvc:annotation-driven /> do?