HTTP Status 404 description The requested resource is not available

I am performing CRUD operations on MongoDB using SPRING REST api. But I am getting the following HTTP error:

HTTP Status 404 -

type: Status report

message

description: The requested resource is not available.

My start default page (basically a simple welcome page) is working fine but when I click on a link in my page to redirect me to another page (where i perform the crud operations) then it shows this error.

Here's my pom.xml

<project xmlns="http://ift.tt/IH78KX" xmlns:xsi="http://ift.tt/ra1lAU"
xsi:schemaLocation="http://ift.tt/IH78KX 
http://ift.tt/HBk9RF">
<modelVersion>4.0.0</modelVersion>
<groupId>com.manishchhabra.blog</groupId>
<artifactId>HelloSpringWithMongoDB</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>HelloSpringWithMongoDB Maven Webapp</name>
<url>http://ift.tt/19pvvEY;
<dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-orm</artifactId>
        <version>4.1.5.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>3.2.0.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.1.5.RELEASE</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.1.6.RELEASE</version>
        <scope>compile</scope>
    </dependency>

    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>3.1.0</version>
        <scope>provided</scope>
    </dependency>

    <dependency>
        <groupId>org.springframework.data</groupId>
        <artifactId>spring-data-mongodb</artifactId>
        <version>1.6.2.RELEASE</version>
    </dependency>

    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>3.8.1</version>
        <scope>test</scope>
    </dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
        </plugin>
    </plugins>
    <finalName>HelloSpringWithMongoDB</finalName>
</build>
</project>

Heres my web.xml

<web-app xmlns="http://ift.tt/nSRXKP" xmlns:xsi="http://ift.tt/ra1lAU"
xsi:schemaLocation="http://ift.tt/nSRXKP 
     http://ift.tt/LU8AHS"
version="2.5">

<display-name>Spring With MongoDB 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>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
</context-param>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>
        /WEB-INF/dispatcher-servlet.xml
    </param-value>
</context-param>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>


</web-app>

Here's my dispatcher-servelet.xml (WEB_INF/jsp/dispatcher-servelet.xml)

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://ift.tt/GArMu6"
xmlns:xsi="http://ift.tt/ra1lAU" xmlns:context="http://ift.tt/GArMu7"
xmlns:p="http://ift.tt/1jdM0fE"
xsi:schemaLocation="
   http://ift.tt/GArMu6 
   http://ift.tt/18sW2ax
   http://ift.tt/GArMu7 
   http://ift.tt/1bGeTcI">

<context:component-scan base-package="com.manishchhabra.blog" />

<!-- Factory bean that creates the Mongo instance -->
<bean id="mongo" class="org.springframework.data.mongodb.core.MongoFactoryBean">
    <property name="host" value="localhost" />
</bean>

<!-- MongoTemplate for connecting and quering the documents in the database -->
<bean id="mongoTemplate" class="org.springframework.data.mongodb.core.MongoTemplate">
    <constructor-arg name="mongo" ref="mongo" />
    <constructor-arg name="databaseName" value="test" />
</bean>

<!-- Use this post processor to translate any MongoExceptions thrown in 
    @Repository annotated classes -->
<bean
    class="org.springframework.dao.annotation.PersistenceExceptionTranslationPostProcessor" />


<bean id="jspViewResolver"
    class="org.springframework.web.servlet.view.InternalResourceViewResolver"
    p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />

</beans>

I am using Tomcat v7.0 to run this on local server. The link for the entire code is this: tutorial for the code

I have tried for days to remove this error. Kindly help me out.

EDIT: There are no errors being shown in the log. But for reference heres the log:

Mar 30, 2015 3:17:32 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /Users/avarshney/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
Mar 30, 2015 3:17:32 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:HelloSpringWithMongoDB' did not find a matching property.
Mar 30, 2015 3:17:33 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8081"]
Mar 30, 2015 3:17:33 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Mar 30, 2015 3:17:33 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1367 ms
Mar 30, 2015 3:17:33 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Mar 30, 2015 3:17:33 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.34
Mar 30, 2015 3:17:37 PM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://ift.tt/19pvuRr for further details.
Mar 30, 2015 3:17:37 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
Mar 30, 2015 3:17:38 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'dispatcher'
Mar 30, 2015 3:17:38 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8081"]
Mar 30, 2015 3:17:38 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Mar 30, 2015 3:17:38 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 5452 ms