Mingyang.net：自定义FreeMarkerView

自定义FreeMarkerView的目的是为了放一些公共的变量到FreeMarker模版里面.
spring-context.xml：

<!-- **********************************************************************

     ** FreeMaker解析器                                                      **

     ********************************************************************** -->

<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">

    <!--<property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView" />-->

    <property name="viewClass" value="net.mingyang.cms.util.FtlView" />  

    <property name="contentType" value="text/html;charset=UTF-8" />

    <property name="exposeRequestAttributes" value="true" />

    <property name="exposeSessionAttributes" value="true" />

    <property name="exposeSpringMacroHelpers" value="true" />

    <!-- <property name="suffix" value=".ftl" /> -->

    <property name="order" value="0" />

</bean>

<bean class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">

    <property name="templateLoaderPath" value="/WEB-INF/views/" />

    <property name="freemarkerSettings">

        <props>

            <prop key="template_update_delay">0</prop>

            <prop key="default_encoding">UTF-8</prop>

            <prop key="number_format">0.##########</prop>

            <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>

            <prop key="date_format">yyyy-MM-dd</prop>

            <prop key="classic_compatible">true</prop>

            <prop key="template_exception_handler">ignore</prop>

        </props>

    </property>

</bean>

FtlView.java：

package net.mingyang.cms.util;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.web.servlet.view.freemarker.FreeMarkerView;

public class FtlView extends FreeMarkerView

{

    @Override

    protected void exposeHelpers(Map<String, Object> model,

            HttpServletRequest request) throws Exception

    {

        model.put("contextPath", request.getContextPath());

        super.exposeHelpers(model, request);

    }

}