Spring MVC – Ejemplo de un CRUD en SpringMVC 4.0.1, JdbcTemplate , MySql y Netbeans 8.2

2. Crear el proyecto Spring MVC

2.1 Estructura de archivos

web.xml

<?xml version=\"1.0\" encoding=\"UTF-8\"?>
<web-app version=\"3.1\" xmlns=\"http://xmlns.jcp.org/xml/ns/javaee\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.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>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.htm</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>

applicationContext.xml

<?xml version=\'1.0\' encoding=\'UTF-8\' ?>
<!-- was: <?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:aop=\"http://www.springframework.org/schema/aop\"
       xmlns:tx=\"http://www.springframework.org/schema/tx\"
       xsi:schemaLocation=\"http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.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) -->

</beans>

dispatcher-servlet.xml

<?xml version=\'1.0\' encoding=\'UTF-8\' ?>
<!-- was: <?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:aop=\"http://www.springframework.org/schema/aop\"
       xmlns:tx=\"http://www.springframework.org/schema/tx\"
       xsi:schemaLocation=\"http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd\">

    <bean class=\"org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping\"/>

    <bean id=\"urlMapping\" class=\"org.springframework.web.servlet.handler.SimpleUrlHandlerMapping\">
        <property name=\"mappings\">
            <props>
                <prop key=\"index.htm\">indexController</prop>
            </props>
        </property>
    </bean>
    <bean id=\"viewResolver\"
          class=\"org.springframework.web.servlet.view.InternalResourceViewResolver\"
          p:prefix=\"/WEB-INF/jsp/\"
          p:suffix=\".jsp\" />
    <bean name=\"indexController\"
          class=\"org.springframework.web.servlet.mvc.ParameterizableViewController\"
          p:viewName=\"index\" />
</beans>

index.jsp

<%@page contentType=\"text/html\" pageEncoding=\"UTF-8\"%>
<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\"
    \"http://www.w3.org/TR/html4/loose.dtd\">

<html>
    <head>
        <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">
        <title>Welcome to Spring Web MVC project</title>
    </head>

    <body>
        <p>Hello! This is the default welcome page for a Spring Web MVC project.</p>
        <p><i>To display a different welcome page for this project, modify</i>
            <tt>index.jsp</tt> <i>, or create your own welcome page then change
                the redirection in</i> <tt>redirect.jsp</tt> <i>to point to the new
                welcome page and also update the welcome-file setting in</i>
            <tt>web.xml</tt>.</p>
    </body>
</html>

redirect.jsp

<%@page contentType=\"text/html\" pageEncoding=\"UTF-8\"%>
<% response.sendRedirect(\"index.htm\"); %>

2.2 Ejecutar el proyecto autogenerado