springMVC与freemarker整合

准备好的环境：Maven工程整合好了ssm，即spring+springMVC+mybatis。接下来准备将springMVC与freemarker整合，以html文件为模板。

一，加入freemarker依赖

        <!-- freemarker -->
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.23</version>
        </dependency>

二，在web.xml中的前端控制器选择加载mvc-context-freemarker.xml文件

    <!-- Spring Servlet配置 -->
    <servlet>
        <servlet-name>springServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>
　　　　　　　　　　classpath*:/spring/mvc-context-freemarker.xml,
　　　　　　　　　　classpath*:/spring/controller/*　　
　　　　　　 </param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

三，编辑mvc-context-freemarker.xm文件，注意标红部分。

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:beans="http://www.springframework.org/schema/beans" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 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-3.2.xsd
                    http://www.springframework.org/schema/context
                    http://www.springframework.org/schema/context/spring-context-3.2.xsd
                    http://www.springframework.org/schema/mvc
                    http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
                    ">
    
    <!-- 控制器适配器和控制器映射器 -->
    <mvc:annotation-driven></mvc:annotation-driven>
    
    <!-- 配置jsp文件视图解析器 -->    
    <bean id="viewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/jsp/" />
        <property name="suffix" value=".jsp" />
　　　　　 <!-- 视图渲染顺序 -->
        <property name="order" value="1" />
    </bean>
    
    <!-- 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" />
　　　　　<!-- 不需要写前缀 -->
        <property name="suffix" value=".html" />
        <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">
　　　　　<!-- freemarker前缀 -->
        <property name="templateLoaderPath" value="/html/"/>
        <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">0</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>
    <bean id="fmXmlEscape" class="freemarker.template.utility.XmlEscape"/>    
    
    <!-- 多部分文件上传 -->
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <property name="maxUploadSize" value="104857600" />
        <property name="maxInMemorySize" value="4096" />
        <property name="defaultEncoding" value="UTF-8"></property>
    </bean>

</beans>                 

四，编辑Controller

    @RequestMapping("/doLogin")
    public String doLogin(HttpServletRequest req, HttpServletResponse res, Model model) {
         model.addAttribute("name", "czx"); 
         return "hello";
    }    

五，编辑Hello.html模板文件，注意存放路径问题

<html>  
    <head> 
        <title>freemarker Test</title>  
    </head>
    <body>  
        <h1>Hello,${name}</h1>  
    </body>  
</html>

结果：