spring MVC

Spring MVC & Freemarker
1.Reference:
spring-framework-2.5.6/docs/MVC-step-by-step/html_single/index.html

2.config relative : web.xml
<?xml version="1.0" encoding="UTF-8"?>

<web-app version="2.4"
         xmlns="http://java.sun.com/xml/ns/j2ee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
         http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" >

  <servlet>
    <servlet-name>springapp</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>

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

  <welcome-file-list>
    <welcome-file>
      index.jsp
    </welcome-file>
  </welcome-file-list>

</web-app>

Spring configuration:
/WEB-INF/springapp-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"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

  <!-- the application context definition for the springapp DispatcherServlet -->

  <bean name="/hello.htm" class="springapp.web.HelloController"/>

</beans>


3.Spring C –controller
import java.io.IOException;
import java.util.Date;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;

import com.sun.org.apache.commons.logging.Log;
import com.sun.org.apache.commons.logging.LogFactory;

public class HelloController implements Controller {

    protected final Log logger = LogFactory.getLog(getClass());

    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
    String now = (new Date()).toString();
        logger.info("Returning hello view with " + now);
        return new ModelAndView("hello.jsp", "now", now);
    }
}

ModelAndView :hello.jsp redirect page ,now :parameter dispatcher to the page;


<bean name="/hello.htm" class="springapp.web.HelloController"/>
It means the url end with “hello.htm” will be process by the controller



4.The project content



Spring MVC base on Freemarker
<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"
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-2.5.xsd">

<!--
the application context definition for the springapp DispatcherServlet
-->

<bean name="/hello.htm" class="com.test.action.HelloController" />

<bean id="freemarkerConfig"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
<property name="templateLoaderPath" value="/WEB-INF/ftl">
</property>
<property name="defaultEncoding" value="UTF-8"></property>
<property name="freemarkerSettings">
<props>
<prop key="template_update_delay">10</prop>
<prop key="locale">zh_CN</prop>
</props>
</property>
</bean>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<property name="contentType" value="text/html;charset=UTF-8"></property>
<property name="suffix">
<value>.ftl</value>
</property>
</bean>
</beans>

In the controller:
return new ModelAndView("hello", "now", now);
it will turn to the page “hello.ftl”