No mapping found for HTTP request with URI [/DAG_ERP/login.htm] in DispatcherServlet

[manveer88]

Hi,

I am developing one spring MVC web application in Spring 3.0. I've setup all environment for development in netbeans ide 7.2. When I am running the project it shows me warning on tomcat log file i.e. "No mapping found for HTTP request with URI [/DAG_ERP/login.htm] in DispatcherServlet with name 'dispatcher'" and on browser the link is broken message.

web.xml file :

<?xml version="1.0" encoding="UTF-8"?>
<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>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>*.htm</url-pattern>
    </servlet-mapping>     
    <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>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>        
    <listener>
        <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
    </listener>
    <context-param>
        <param-name>log4jConfigLocation</param-name>
        <param-value>/WEB-INF/log4j.properties</param-value>
    </context-param>    
    <!-- Configuration to allow more than one application run in the same container(Tomacat Specific) -->
    <context-param>
        <param-name>log4jExposeWebAppRoot</param-name>
        <param-value>false</param-value>
    </context-param>    
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>redirect.jsp</welcome-file>
    </welcome-file-list>
    <error-page>
        <error-code>404</error-code>
        <location>/jsp/error/error.jsp</location>
    </error-page>    
    <error-page>
        <error-code>401</error-code>
        <location>/jsp/redirect.jsp</location>
    </error-page>
</web-app>

applicationContext.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:p="http://www.springframework.org/schema/p"
       xmlns:tx="http://www.springframework.org/schema/tx"
       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/tx
			http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
			http://www.springframework.org/schema/mvc
			http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <!--bean id="propertyConfigurer"
          class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
          p:location="/WEB-INF/jdbc.properties" />

<bean id="dataSource"
    class="org.springframework.jdbc.datasource.DriverManagerDataSource"
    p:driverClassName="${jdbc.driverClassName}"
    p:url="${jdbc.url}"
    p:username="${jdbc.username}"
    p:password="${jdbc.password}" /-->

    <!-- ADD PERSISTENCE SUPPORT HERE (jpa, hibernate, etc) -->
    <!--if no controller logic is required, mvc:view-controller can be used to simply show a view for a request  -->
    <mvc:view-controller path="/" view-name="redirect"/>

<!--Enables many annotations and searches for @Controller annotated methods etc.. -->
    <context:annotation-config/>

    <context:component-scan base-package="com.dag.dag_erp"/>

    <mvc:annotation-driven/>

    <context:property-placeholder location="WEB-INF/config.properties"/>

    <bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource">
        <property name="basenames">
            <list>
                <value>resources.LabelResources</value>
                <value>resources.ErrorResources</value>
            </list>
        </property>
    </bean>    
    <tx:annotation-driven transaction-manager="transactionManager"/>
    <bean id="transactionManager"
          class="org.springframework.orm.hibernate3.HibernateTransactionManager"
          p:sessionFactory-ref="sessionFactory"/>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="dataSource"/>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
            </props>
        </property>
        <property name="packagesToScan" value="com.dag.dag_erp"/>
    </bean>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
          p:driverClassName="${jdbc.driverClassName}"
          p:url="${jdbc.url}"
          p:username="${jdbc.username}"
          p:password="${jdbc.password}"/>
         
    <bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <prop key="com.dag.dag_erp.exception.DAGException">error/exception</prop>
                <prop key="java.lang.Exception">error/exception</prop>
                <prop key="java.lang.NumberFormatException">error/exception</prop>
                <prop key="java.lang.NullPointerException">error/exception</prop>
            </props>
        </property>
    </bean> 

</beans>

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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
	   		http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
 
    <bean id="viewResolver"
          class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:prefix="/WEB-INF/jsp/"
          p:suffix=".jsp" />

</beans>

The welcome file opens correctly.
I embedd one line of code into that redirect.jsp

<jsp:forward page="login.htm" />

Which should send the request to controller where I want to show login.jsp

The controller code is:

LoginController.java

@Controller
public class LoginController {
@RequestMapping("/login")
    public ModelAndView showLoginForm() {
	    LOGGER.info("requesting to login...");
        ModelAndView mav = new ModelAndView("login");       
        return mav;
    }

Can anyone suggest me what is wrong with this code.
Please any help appreciated.

Thanks, Manveer

[Marten Deinum]

Your mapping is wrong... Your dispatcher servlet looks at *.htm mappings and your controller listens at /login not login.htm so it will never match.

Another note you have 2 instances of the ContextLoaderListener in your web.xml why? Remove one.

[manveer88]

Hi,

Thank you for your support. The correct web.xml is:

<?xml version="1.0" encoding="UTF-8"?>
<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>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherSe rvlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoade rListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigList ener</listener-class>
</listener>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>
<!-- Configuration to allow more than one application run in the same container(Tomacat Specific) -->
<context-param>
<param-name>log4jExposeWebAppRoot</param-name>
<param-value>false</param-value>
</context-param>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
<welcome-file-list>
<welcome-file>redirect.jsp</welcome-file>
</welcome-file-list>
<error-page>
<error-code>404</error-code>
<location>/jsp/error/error.jsp</location>
</error-page>
<error-page>
<error-code>401</error-code>
<location>/jsp/redirect.jsp</location>
</error-page>
</web-app>

I searched and found that we can set url-pattern as it is. So I don't think that is wrong. I have one working example for the same

<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>

In redirect.jsp I use this code to send redirect directly to login.jsp

<%response.sendRedirect("login.htm"); %>

Please do let me know if there is something wrong. I am still not able to run my project. Any help would be greatly appreciated!


Thanks, Manveer

[Marten Deinum]

Read...

Your DispatcherServlet listens to *.htm so it reacts to /DAG_ERP/login.htm... But your controller is mapped to /DAG_ERP/login no match... (As I explained in the post earlier).

So as stated your mapping is wrong either change your controller mapping or dispatcher servlet mapping and redirect to /login instead of /login.htm...

And I stronglky suggest a read of the spring reference guide and servlet specification to get a feel for how things work.