java - JSP with Spring form not calling Spring 4.x controller -

i spring newbie , have simple form on jsp:

    <!-- register person. -->             <p>to register library, please <i>click</i> button below:</p>     <c:url value="/registerperson/register" var="url" />     <form:form commandname="person" action="${url}" method="get">            <input type="submit" value="register">                     </form:form>        

which want use talk spring controller:

@controller @requestmapping("/registerperson") @sessionattributes("person") public class registerpersoncontroller {  private registerpersonvalidator registerpersonvalidator; private personservice personservice;  @autowired public registerpersoncontroller(registerpersonvalidator registerpersonvalidator,    personservice personservice) {     this.registerpersonvalidator = registerpersonvalidator;     this.personservice = personservice; }  // populates registerpersonform dummy person when new person registering library. @requestmapping(method = requestmethod.get) public string getregisterperson(model model) {     system.out.println("hello");     person person = new person();     model.addattribute("person", person);     return "registerperson"; } 

but when try form, tomcat 404 page not found error.

the registerperson view stored in \web\web-inf\jsp jsp.

my dispatcherservlet is:

<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-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"> <mvc:annotation-driven />     <context:component-scan base-package="library.controller" />     <bean id="viewresolver" class="org.springframework.web.servlet.view.internalresourceviewresolver">     <property name="prefix">          <value>/web-inf/jsp/</value>     </property>     <property name="suffix">         <value>.jsp</value>     </property> </bean>         

and web.xml:

<display-name>library</display-name>                  <servlet>     <servlet-name>library</servlet-name>     <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class>     <load-on-startup>1</load-on-startup> </servlet>  <servlet-mapping>     <servlet-name>library</servlet-name>     <url-pattern>/</url-pattern> </servlet-mapping>         <listener>     <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> </listener>  <context-param>     <param-name>contextconfiglocation</param-name>     <param-value>/web-inf/library-servlet.xml</param-value> </context-param>                    <welcome-file-list>     <welcome-file>/web-inf/jsp/index.jsp</welcome-file> </welcome-file-list>     

can advise why controller not called when try url:

http://localhost:8080/library/registerperson 

using get?

change library library, urls mapped servlet name, not display name.

you have no controller url

 <c:url value="/registerperson/register" var="url" /> 

you have shown "/registerperson".