SpringMVC JSP: Method not called on initial page load - java

I want SpringMVC to call a method when my-site.com loads that adds some attributes to the model just like my other working methods do. I originally used this annotation:
#RequestMapping(value = "/", method = RequestMethod.GET)
The problem is, Spring ignores the method for some reason, yet allows everything else to work. As a work-around I have to declare it like this:
#RequestMapping(value = "/unnecessary-page", method = RequestMethod.GET)
and put a link to my-site.com/unnecessary-page on the main page. This is very strange. How would I get this to work the way I originally intended?
edit: this is the web.xml file:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<!--Dispatcher Config-->
<servlet>
<servlet-name>dispatcher</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>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!--Application Config-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>com.web.search.context.ContextFinalizer</listener-class>
</listener>
</web-app>


#RequestMapping(value = "/*")
Try to remove this line. I think this is your problem, hope so.
index.jsp
<html>
<body>
<h2>${mgs}</h2>
</body>
</html>
HomepageController.java
#Controller
public class HomePageController {
#RequestMapping(value = "/", method = RequestMethod.GET)
public String getHomePage(ModelMap map) {
map.addAttribute("mgs", "Hello, Have a nice day");
return "index";
}
}
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:p="http://www.springframework.org/schema/p"
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-4.0.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
">
<!-- Use #Component annotations for bean definitions -->
<context:component-scan base-package="ltvnc.java.lichking.*" />
<!-- Use #Controller annotations for MVC controller definitions -->
<mvc:annotation-driven />
<!-- View resolver -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/views/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>Archetype Created Web Application</display-name>
<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>
pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>ltvnc.java.lichking</groupId>
<artifactId>example</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>example Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.1.1.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
</dependencies>
<build>
<finalName>example</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
it will display "Hello, have a nice day" when you start your app with url http://localhost:7080/example/

Related

Why am I getting a 404 error when accessing my Spring MVC app URL?

I'm following a tutorial at Udemy for my first Spring-MVC web app. I've configured it using XML for the servlet specification exactly as controlled with a Controller class to return a String.
Navigating to the URL http://localhost:8080/spring-mvc/login I get a 404.
My code:
web.xml:
<web-app 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"
version="3.0">
<display-name>Spring To do List</display-name>
<!--
<welcome-file-list>
<welcome-file>login.do</welcome-file>
</welcome-file-list>
-->
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/todo-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/spring-mvc/*</url-pattern>
</servlet-mapping>
</web-app>
todo-servlet.xml :
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="com.wds" />
<mvc:annotation-driven/>
</beans>
'''
LoginController.java
'''
package com.wds.springmvc;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
public class LoginController {
#RequestMapping(value = "/login")
#ResponseBody
public String sayHello() {
System.out.println("performing hello");
return "hello world";
}
}
pom.xml:
4.0.0
com.in28minutes
in28Minutes-first-webapp
0.0.1-SNAPSHOT
war
<dependencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-web-api</artifactId>
<version>6.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.2.RELEASE</version>
</dependency>
</dependencies>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<verbose>true</verbose>
<source>1.8</source>
<target>1.8</target>
<showWarnings>true</showWarnings>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<path>/</path>
<contextReloadable>true</contextReloadable>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>
My understanding is that if the controller method executes the Dispatcher Servlet should return the view as specified in the servlet config. As no is specified in there it should just return the String from the controller method i.e. "hello world".
Instead I get the 404.
What I'm confused about is in the console, I can see the servlet config has been registered and the "say Hello" controller method mapped to "/login". I've put a System out in the controller method but it's not being output.
Any idea why I get the 404?
Many Thanks

I would suggest to use request mapping on top of the controller
#Controller
#RequestMapping("/spring-mvc")
public class TestController {
#RequestMapping("/login")
#ResponseBody
public String test(){
System.out.println("test is running");
return "test is working";
}
}
and in web.xml
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Advantages: Good to read the code as well as easy to scale the application

Spring MVC home directory 404 Error Intellij Idea

I'm studying Spring MVC, and I stuck almost at the start. I've followed the video about creating first MVC app but it's not working for me. I want to get main.jsp as start page, following the config but the page is not loading, I'm getting 404 all the time.
I've create a new Maven project. Then I've add Spring MVC framework support for the project, create web.xml and spring-mvc-demo-servlet for Spring configuration.
I've checked my project several times, but unsuccessful. Also, Ive checked similar topics but also wasn't able to found the solution.
Project Structure Image
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>group</groupId>
<artifactId>artifact</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<spring.version>5.0.4.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/javax.servlet/jstl -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
</dependencies>
WEB.XML
<?xml version="1.0" encoding="UTF-8"?>
http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-mvc-demo-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Spring-mvc-demo-servlet.xml
<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.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!-- Step 3: Add support for component scanning -->
<context:component-scan base-package="com.test.spring" />
<!-- Step 4: Add support for conversion, formatting and validation support -->
<mvc:annotation-driven/>
<!-- Step 5: Define Spring MVC view resolver -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/view/" />
<property name="suffix" value=".jsp" />
</bean>
HomeController
package com.test.spring;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
#Controller
public class HomeController {
#RequestMapping("/")
public String showPage() {
return "main";
}

I think WebApplicationInitalizer is simplier for begining with Spring 5 and Intellij.
1) Add a WebMvcConfig class to your com.test.spring package like this :
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = { "com.test.spring"})
public class WebMvcConfig implements WebMvcConfigurer {
#Bean
public InternalResourceViewResolver resolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setViewClass(JstlView.class);
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
return resolver;
}
2) Move your WEB-INF folder to a new folder src/main/webapp (mabe you'll have it as source folder by right cli clicking on it)
3) Remove your web.xml and spring-mvc-demo-servlet.xml files and all your old web folder
4) Add an application initializer
public class AppInitializer extends
AbstractAnnotationConfigDispatcherServletInitializer {
#Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
Finally right click on AppInitializer class and then Run it...
Optionnally, you could add Tomcat to your Maven pom.xml and then run command mvn tomcat7:run :
<build>
<plugins>
...
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<path>/</path>
</configuration>
</plugin>
<plugins>
<build>
Hope this will help you

Thank a lof for your answer Karbos, however I had to find the solution exactly for the sources I provided, cause otherwise I wouldn't be able to continie the course on Udemy...
I solve the issue, but the most creepy moment is that I have no idea how I made it. I added several changes to the project.
Changes in web.xml
<servlet>
<servlet-name>my-dispatcher-servlet</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>
<load-on-startup>1</load-on-startup>
</servlet>
Changes in pom.xml
<packaging>war</packaging>
and some others I may didnt notice cause did it automaticly.
So the issue took one and a half day for me. Feel myself so retarded...

org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 8 in XML document from ServletContext resource

I am newbie to spring MVC and i am trying to render my first page of application.i am stuck with this problem since a week .please consider my code and let me know the solution .i am using maven project,I am getting the following exception: org.springframework.beans.factory.xml.XmlBeanDefinitionStoreException: Line 8 in XML document from ServletContext resource
My configuration is:
Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:javaee="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<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>
pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>freeEducationProvider</groupId>
<artifactId>freeEducationProvider</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>freeEducationProvider Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<!-- <dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency> -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
</dependencies>
<build>
<finalName>freeEducationProvider</finalName>
</build>
</project>
Controller
package com.bookprovder.loginController;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
#Controller
public class LoginController {
#RequestMapping("/login")
public ModelAndView showLoginPage(){
ModelAndView modelAndView=new ModelAndView("loginForm");
return modelAndView.addObject("headerOfPage", "Welcome To Free Education provider ");
}
}
and Spring-Dispatcher-servlet.xml is
<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"
xsi:schemaLocation="
htp://www.springframework.org.schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:component-scan base-package="com.bookprovder.loginController"/>
<bean id="viewResolver" class="org.springfraework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" ><value>/WEB-INF/</value>
</property>
<property name="suffix"><value>.jsp</value>
</property>
</bean>
</beans>
loginForm.jsp
<html>
<body>
<h1>#{msg}</h1>
</body>
</html>
Please let me know the reason behind this exception and solution to get rid from this.

Spring MVC request mapping not found 404 page not found

I am developing sample Spring MVC application i want to return JSON string by requesting to spring mvc controller but when i make request via url it shows me 404 error i am following tutorial from very famous website ,My URL to which i make request IS localhost:8080/SpringAngularProject/rest/kfc/brands/kfc1 here is my code below :
0-- Console Picture :
Aug 12, 2014 7:31:19 PM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/SpringAngularProject/rest/kfc/brands/sdsd] in DispatcherServlet with name 'mvc-dispatcher'
1- Its my Controller Class
package com.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
#RequestMapping("/kfc/brands")
public class HelloWorldController {
#RequestMapping(value = "{name}", method = RequestMethod.GET)
public #ResponseBody Shop getShopInJSON(#PathVariable String name) {
Shop shop = new Shop();
shop.setName(name);
shop.setStaffName(new String[] { "staff1", "staff2" });
return shop;
}
}
2-- My web.xml file
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" version="3.0">
<display-name>AngularSpring</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class> org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/rest</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener </listener-class>
</listener>
</web-app>
3-- My Spring cfg file :
<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-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:component-scan base-package="com.controller.HelloWorldController" />
<mvc:annotation-driven />
</beans>
4-- My pom.xml file for maven
<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>
<groupId>SpringAngularProject</groupId>
<artifactId>SpringAngularProject</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<build>
<sourceDirectory>src</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-war-plugin</artifactId>
<version>2.3</version>
<configuration>
<warSourceDirectory>WebContent</warSourceDirectory>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<spring.version>3.2.2.RELEASE</spring.version>
<jackson.version>1.9.10</jackson.version>
<jdk.version>1.7</jdk.version>
</properties>
<dependencies>
<!-- Spring 3 dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.12</version>
</dependency>
</dependencies>
</project>

Finaly i got my answer myself it was just instead of <context:component-scan base-package="com.controller.HelloWorldController" /> i changed to <context:component-scan base-package="com.controller" /> we just have to give path till Base package as name suggest

ClassNotFoundException for DispatcherServlet

since a day I have a very annoying problem - I can't run any Spring MVC application :/ Today I have tried to write something basing at Spring Documentation. So i created this from scratch:
web.xml
<web-app>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/root-context.xml</param-value>
</context-param>
<servlet>
<servlet-name>bloger</servlet-name>
<servlet-class>org.spring.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>bloger</servlet-name>
<url-pattern>/bloger/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
root-context.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd">
<context:component-scan base-package="spring.blog.test"/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
simplecontroller:
#Controller
public class SimpleController {
#RequestMapping("/hello")
public String helloWorld() {
return "index";
}
}
and of course pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.spring.blog</groupId>
<artifactId>learn</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>learn Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>4.0.1.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<!-- Spring dependencies -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>learn</finalName>
</build>
</project>
I am running it with Spring Tool Suite( 3.6.0.RELEASE at windows) - I had similar problems with other projects from developers' blogs.
Maybe You have simple Spring MVC template that HAVE TO works ?
P.S it doesn't work with spring v. 3
lip 30, 2014 11:48:29 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /learn threw load() exception
java.lang.ClassNotFoundException: org.spring.web.servlet.DispatcherServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:532)
at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:514)
at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:142)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1144)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5176)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5460)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
EDIT: ///
OK, it works ... in Netbeans

Few changes that would be required in your code in web.xml please remove the
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value></param-value>
</init-param>
and change your "root-context.xml" and add the below line.
<mvc:annotation-driven />
<context:component-scan base-package="spring.blog.test"/>
and you have to change the your pom.xml and give the <outputDirectory>, <sourceDirectory>, <resources> under <build> in your pom.xml. it will tell from where to pickup the root-context.xml.

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