FreeMarkerViewResolver类简介说明

下文讲述FreeMarkerViewResolver类的简介说明，如下所示:

FreeMarkerViewResolver简介

FreeMarkerViewResolver是UrlBasedViewResolver的子类
FreeMarkerViewResolver会把Controller处理方法返回的逻辑视图解析为FreeMarkerView

配置(spring-mvc.xml)

<!-- 配置freeMarker视图解析器 -->
<bean id="viewResolverFtl" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
    <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="cache" value="true" />
    <property name="suffix" value=".ftl" />
    <property name="order" value="0"/>
</bean>

配置freeMarker的模板路径

<bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
    <property name="templateLoaderPath" value="/WEB-INF/views/"/>
    <property name="freemarkerVariables">
        <map>
            <entry key="xml_escape" value-ref="fmXmlEscape" />
        </map>
    </property>
    <property name="defaultEncoding" value="UTF-8"/>
    <property name="freemarkerSettings">
        <props>
            <prop key="template_update_delay">3600</prop>
            <prop key="locale">zh_CN</prop>
            <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>
            <prop key="date_format">yyyy-MM-dd</prop>
            <prop key="number_format">#.##</prop>
        </props>
    </property>
</bean>

JSP视图解析器

<bean id="viewResolverJsp" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/"/>
    <property name="suffix" value=".jsp"/>
    <property name="viewClass" value="org.springframework.web.servlet.view.InternalResourceView"/>
    <property name="order" value="1"/>
</bean>

在JSP和Freemarker的配置项中都有一个order property
 上面例子是把freemarker的order设置为0，jsp为1
 其含义为找view时，先找ftl文件，再找jsp文件做为视图。