Spring Cache

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注意：这里自定义FreeMarkerView的目的是为了放一些公共的变量到FreeMarkerView模板里面。

1.配置文件 spring-application.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>

2.自定义实现类

package cn.edu.xidian.see.ext;

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

import javax.servlet.http.HttpServletRequest;
import java.util.Map;

public class FreeMarkerViewExt extends FreeMarkerView {

    private static final String CONTEXT_PATH = "basePath";

    @Override
    protected void exposeHelpers(Map<String, Object> model, HttpServletRequest request)
            throws Exception {
        //返回项目根目录
        model.put(CONTEXT_PATH, request.getContextPath());
        super.exposeHelpers(model, request);
    }
}

//或者是这样...

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);
    }

}