IntelliJ + Spring Web MVC

I added to pom.xml dependencies

<dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.1.6.RELEASE</version>
</dependency>
<dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
</dependency>
<dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
</dependency>

Next I added modules into project (right click on project name -> Add Framework Support... ). I selected Spring MVC and Download (Configure... - selected all items).

I created controller class HomeController.class

package test.app;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HomeController {
    @RequestMapping(value="/")
    public String test()
    {
        return "test";
    }
}

I created webappWEB-INF and put there web.xml

<web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
                                 http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
    <servlet>
        <servlet-name>WebServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
        </init-param>
    </servlet>

&ltservlet-mapping&gt
    &ltservlet-name&gtWebServlet&lt/servlet-name&gt
    &lturl-pattern&gt/&lt/url-pattern&gt
&lt/servlet-mapping&gt
 </web-app>  

Into webappWEB-INF I put dispatcher-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">


&ltmvc:annotation-driven /&gt
&ltcontext:component-scan base-package="test.app" /&gt

&ltbean class="org.springframework.web.servlet.view.InternalResourceViewResolver"&gt
    &ltproperty name="prefix" value="/WEB-INF/views/" /&gt
    &ltproperty name="suffix" value=".jsp" /&gt
&lt/bean&gt
 </beans>  

Finally I added test.jsp file into webappWEB-INFviews. In addition I had to add module dependency (F4 -> modules -> dependencies -> + -> library -> from maven -> typed javax.servlet:jstl:1.2)

In pom.xml file add new dependency and packaging property like in code below

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

&ltgroupId&gttest&lt/groupId&gt
&ltartifactId&gtapp&lt/artifactId&gt
&ltversion&gt1.0-SNAPSHOT&lt/version&gt
&ltpackaging&gtwar&lt/packaging&gt

&ltdependencies&gt
    &ltdependency&gt
        &ltgroupId&gtorg.springframework&lt/groupId&gt
        &ltartifactId&gtspring-webmvc&lt/artifactId&gt
        &ltversion&gt4.2.5.RELEASE&lt/version&gt
    &lt/dependency&gt
&lt/dependencies&gt
 </project>  

In upper right corner of IntelliJ window you will see information panel 'Maven projects need to be imported'. Click 'Import changes'.

In src/main/java create new package, for example 'test.app' and place there new java file TestController.java with your controller (code below).

package test.app;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;


@Controller
public class TestController {
    @RequestMapping(value="/")
    public String test()
    {
        return "index";
    }
}

In web/WEB-INF/dispatcher-servlet.xml file paste code below

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">


&ltmvc:annotation-driven /&gt
&ltcontext:component-scan base-package="test.app" /&gt

&ltbean class="org.springframework.web.servlet.view.InternalResourceViewResolver"&gt
    &ltproperty name="prefix" value="/WEB-INF/views/" /&gt
    &ltproperty name="suffix" value=".jsp" /&gt
&lt/bean&gt
 </beans>  

In web/WEB-INF directory create new directory 'views' and move there file index.jsp from web directory.

In file index.jsp paste some html code into body section. For example index.jsp file code is placed below

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
  <head>
    <title>$Title$</title>
  </head>
  <body>
    <p>HELLO WORLD</p>
  </body>
</html>

In web.xml file change url-pattern property value from *.form into /. Now web.xml file should contains code like below.

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

Now right click your project name and select 'Open Module Settings...'. Choose Modules -> your application name -> Web and change in WebResourceDirectory window your web resource directory into directoryWebAppweb where directory is location of your IntelliJ project on your computer. Then click Apply and OK.