I have configured hibernate & Spring without any errors and my project is deploying, however I’m try to load my Home.jsp via a controller “HomeController” but I’m getting “Error :404 Resource not found…”:
I have tried 3 different approaches:
Approach Number 1 (Not my ideal approach).
a) Define a index.htm in welcome list (web.xml)
b) Map HomeController to “/index.htm” via annotations using @Controller @RequestMethod
c) HomeController returns view “Home” (WEB-INF/views/Home.jsp)
Common project structure used for all 3 approaches:
Web.xml:
<web-app metadata-complete="true" 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">
<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>yourmarketnet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>yourmarketnet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>index.htm</welcome-file>
</welcome-file-list>
</web-app>
Yourmarketnet-spring.xml snippet:
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/" p:suffix=".jsp" p:viewClass="org.springframework.web.servlet.view.JstlView" />
applicationContext.xml:
<!-- Activates various annotations to be detected in bean classes -->
<context:annotation-config />
<!-- Scans the classpath for annotated components that will be auto-registered as Spring beans. For example @Controller and @Service. Make sure to set the correct base-package-->
<context:component-scan base-package="com.yourmarketnet.controller" />
<!-- Configures the annotation-driven Spring MVC Controller programming model. Note that, with Spring 3.0, this tag works in Servlet MVC only! -->
<mvc:annotation-driven/>
<!-- mapping of static resources-->
<mvc:resources mapping="/resources/**" location="/resources/" />
<import resource="hibernate-context.xml" />
HomeController Class:
package com.yourmarketnet.controller;
@Controller
@RequestMapping("/index.htm")
public class HomeController {
public String requestHandler()
{
return "Home";
}
}
Result of Running application :
Http Status 404
The requested resource () is not available.
Approach Number 2, (Not my ideal approach)
a) Create redirect.jsp , and define welcome list (web.xml)
b) Map HomeController to “ /HomeController” via annotations using @Controller @RequestMethod
c) Have redirect.jsp “<% response.sendRedirect(“/HomeController”);%>” to my HomeController
d) HomeController returns view “Home” (WEB-INF/views/Home.jsp)
Web.xml:
<web-app metadata-complete="true" 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">
<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>yourmarketnet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>yourmarketnet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
</web-app>
Yourmarketnet-spring.xml snippet:
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/" p:suffix=".jsp" p:viewClass="org.springframework.web.servlet.view.JstlView" />
</beans>
applicationContext.xml snippet:
<!-- Activates various annotations to be detected in bean classes -->
<context:annotation-config />
<!-- Scans the classpath for annotated components that will be auto-registered as Spring beans. For example @Controller and @Service. Make sure to set the correct base-package-->
<context:component-scan base-package="com.yourmarketnet.controller" />
<!-- Configures the annotation-driven Spring MVC Controller programming model. Note that, with Spring 3.0, this tag works in Servlet MVC only! -->
<mvc:annotation-driven/>
<!-- mapping of static resources-->
<mvc:resources mapping="/resources/**" location="/resources/" />
<import resource="hibernate-context.xml" />
HomeController Class:
package com.yourmarketnet.controller;
@Controller
@RequestMapping("/HomeController")
public class HomeController {
public String requestHandler()
{
return "Home";
}
}
Result of Running application :
Http Status 404 /HomeController
The requested resource (/HomeController) is not available.
Approach Number 3, (If any off the above works its fine, however this is what I really want)
a) Remove all welcome file tags from web.xml
b) MapDispatcher to “/”
c) Map HomeController to “/HomeController” via annotations using @Controller @RequestMethod’
d) HomeController returns view “Home” (WEB-INF/views/Home.jsp)
Web.xml:
<web-app metadata-complete="true" 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">
<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>yourmarketnet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>yourmarketnet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
</web-app>
**Yourmarketnet-spring.xml snippet: **
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/views/" p:suffix=".jsp" p:viewClass="org.springframework.web.servlet.view.JstlView" />
applicationContext.xml snippet:
<!-- Activates various annotations to be detected in bean classes -->
<context:annotation-config />
<!-- Scans the classpath for annotated components that will be auto-registered as Spring beans. For example @Controller and @Service. Make sure to set the correct base-package-->
<context:component-scan base-package="com.yourmarketnet.controller" />
<!-- Configures the annotation-driven Spring MVC Controller programming model. Note that, with Spring 3.0, this tag works in Servlet MVC only! -->
<mvc:annotation-driven/>
<!-- mapping of static resources-->
<mvc:resources mapping="/resources/**" location="/resources/" />
<import resource="hibernate-context.xml" />
HomeController Class:
package com.yourmarketnet.controller;
@Controller
@RequestMapping("/")
public class HomeController {
public String requestHandler()
{
return "Home";
}
}
Apache Server log:
WARNING: No mapping found for HTTP request with URI [/yourmarketnet/] in DispatcherServlet with name ‘yourmarketnet’
Result of Running application :
Http Status 404
The requested resource () is not available.
Please provide me with the correct code/tags in order to server my Home.jsp from HomeController without 404 Error, Thank you.
I am talking about the third approach from your question.
In your web.xml change the request mapping to
/instead of*.htm.Everything else if just perfect as I can see here. So this should work for you.
Hope this helps you.
Cheers.