SpringMVC和Freemarker整合,带自定义标签的使用方法。

【参考来源：http://www.360doc.com/content/14/1225/14/1007797_435663342.shtml】

SpringMVC现在是比较热门的一种框架了，使用起来感觉还是很不错的，现在我分享一下集体的配置和使用，希望对学习SpringMVC的朋友有用。
一、首先我们做准备工作，下载Spring包，下载Freemarker包。
二、配置web.xml。

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<context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:/applicationContext*.xml</param-value>
    </context-param>
    <filter>
        <filter-name>encoding</filter-name>
        <filter-class>
            org.springframework.web.filter.CharacterEncodingFilter
        </filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!-- Spring 的servlet -->
    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-servlet.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
 
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.jpg</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.png</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.js</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>
 
    <welcome-file-list>
        <welcome-file>index.html</welcome-file>
    </welcome-file-list>
    <error-page>
        <error-code>404</error-code>
        <location>/404.jsp</location>
    </error-page>
    <error-page>
        <error-code>500</error-code>
        <location>/500.jsp</location>
    </error-page>

三、接下来配置applicationContext.xml

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xsi:schemaLocation="  
           http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
           http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd  
           http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd  
           http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
           http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
           "
    default-lazy-init="true">
 
    <description>Spring数据库及事务配置</description>
     
    <context:component-scan base-package="com.mynote.*,com.base.*">
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>
     
    <context:property-placeholder
        location="classpath:/jdbc.properties" />
         
    <!-- 数据库连接 -->
    <bean id="dataSource"
        class="org.logicalcobwebs.proxool.ProxoolDataSource">
        <property name="alias">
            <value>proxoolds</value>
        </property>
        <property name="driver">
            <value>${datasource.driverClassName}</value>
        </property>
        <property name="driverUrl">
            <value>${datasource.url}</value>
        </property>
        <property name="user">
            <value>${datasource.username}</value>
        </property>
        <property name="password">
            <value>${datasource.password}</value>
        </property>
        <property name="houseKeepingSleepTime">
            <value>${datasource.houseKeepingSleepTime}</value>
        </property>
        <property name="maximumConnectionCount">
            <value>${datasource.maximumConnectionCount}</value>
        </property>
        <property name="minimumConnectionCount">
            <value>${datasource.minimumConnectionCount}</value>
        </property>
        <property name="prototypeCount">
            <value>${datasource.prototypeCount}</value>
        </property>
        <property name="maximumActiveTime" value="1800000"/> 
        <property name="simultaneousBuildThrottle" value="100"/>
    </bean>
     
    <bean id="jdbcTemplate"
        class="org.springframework.jdbc.core.JdbcTemplate">
        <property name="dataSource" ref="dataSource" />
    </bean>
     
    <bean id="simpleJdbcInsert"
        class="org.springframework.jdbc.core.simple.SimpleJdbcInsert">
        <constructor-arg ref="dataSource"/>
    </bean>
     
    <!-- 事务管理 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
        <property name="dataSource" ref="dataSource" />  
    </bean>
     
    <tx:annotation-driven transaction-manager="transactionManager" />
     
    <bean id="ehCacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean">
        <property name="shared" value="true"/>
    </bean>
    <bean id="ehcache" factory-bean="ehCacheManager" factory-method="getEhcache">
        <constructor-arg value=""/>
    </bean>
 
    <cache:annotation-driven cache-manager="springEhCacheManager" />
     
    <bean id="springEhCacheManager" class="com.base.modules.utils.AutoCreatedEhCacheCacheManager">
        <property name="cacheManager" ref="ehCacheManager"/>
    </bean>
     
    <!-- 定期执行的业务类 
    <bean id="jdkExecutorJob" class="com.shst.base.bdss.bdssTask" lazy-init="false">
        <property name="period" value="180" />
        <property name="initialDelay" value="10" />
        <property name="shutdownTimeout" value="120" />
    </bean>
    -->
</beans>

四、接下来写spring-servlet.xml配置好jsp和Freemarker的自动切换，只要你的请求指定了跳转，那么就会先找对应的Freemarker文件然后会找jsp页面

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
 
    <mvc:annotation-driven />
    <!-- 将无法mapping到Controller的path交给default servlet handler处理 -->
    <mvc:default-servlet-handler />
 
    <context:component-scan base-package="com.mynote.*"
        use-default-filters="false">
        <context:include-filter type="annotation"
            expression="org.springframework.stereotype.Controller" />
        <!-- 
            shiro方法拦截需求
            <context:include-filter type="annotation" expression="org.springframework.web.bind.annotation.ControllerAdvice" />
        -->
    </context:component-scan>
 
    <mvc:interceptors>
        <!-- 多个拦截器,顺序执行 -->
        <mvc:interceptor>
            <mvc:mapping path="/**" /><!-- 如果不配置或/*,将拦截所有的Controller -->
            <bean class="com.base.modules.intercepter.SecurityIntercepter"></bean>
        </mvc:interceptor>
    </mvc:interceptors>
 
    <bean
        class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"
        p:prefix="/" p:suffix=".ftl">
        <property name="cache" value="false" />
        <property name="viewClass"
            value="org.springframework.web.servlet.view.freemarker.FreeMarkerView" />
        <property name="contentType" value="text/html;charset=UTF-8"></property>
        <property name="exposeRequestAttributes" value="true" />
        <property name="exposeSessionAttributes" value="true" />
        <property name="exposeSpringMacroHelpers" value="true" />
        <property name="requestContextAttribute" value="base"></property>
        <property name="order" value="0"></property>
    </bean>
 
    <bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
        p:defaultEncoding="UTF-8" />
 
    <bean id="IndexContentListTag"
        class="com.mynote.tag.IndexContentListTag">
    </bean>
    <bean id="BKIndexContentListTag"
        class="com.mynote.tag.BKIndexContentListTag">
    </bean>
    <bean id="contentTag" class="com.mynote.tag.ContentTag"></bean>
    <bean id="HotBlogContentTag"
        class="com.mynote.tag.HotBlogContentTag">
    </bean>
    <bean id="freemarkerConfig"
        class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
        <property name="templateLoaderPath" value="/templates/" />
        <property name="defaultEncoding" value="UTF-8" />
        <property name="freemarkerVariables">
            <map>
                <entry key="indexContent"
                    value-ref="IndexContentListTag">
                </entry>
                <entry key="bkContent"
                    value-ref="BKIndexContentListTag">
                </entry>
                <entry key="blogContent" value-ref="contentTag"></entry>
                <entry key="hotContent" value-ref="HotBlogContentTag"></entry>
            </map>
        </property>
        <property name="freemarkerSettings">
            <props>
                <prop key="tag_syntax">auto_detect</prop>
                <prop key="template_update_delay">5</prop>
                <prop key="defaultEncoding">UTF-8</prop>
                <prop key="url_escaping_charset">UTF-8</prop>
                <prop key="locale">zh_CN</prop>
                <prop key="boolean_format">true,false</prop>
                <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>
                <prop key="date_format">yyyy-MM-dd</prop>
                <prop key="time_format">HH:mm:ss</prop>
                <prop key="number_format">0.######</prop>
                <prop key="whitespace_stripping">true</prop>
                <!--空值处理<prop key="classic_compatible">true</prop>-->
                <!--  <prop key="auto_import">/ftl/tags/index.ftl as p,/ftl/spring.ftl as s</prop>-->
            </props>
        </property>
    </bean>
 
    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
 
    <bean id="viewResolverCommon"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <property name="order" value="1"></property>
        <property name="prefix" value="/WEB-INF/" />
        <property name="suffix" value=".jsp"></property>
    </bean>
 
    <bean
        class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
        <property name="messageConverters">
            <list>
 
                <!-- 解析json请求数据，将json转换为java对象-->
                <bean
                    class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />
                <!-- 解析xml请求数据，将xml转换为java对象-->
 
                <bean
                    class="org.springframework.http.converter.xml.MarshallingHttpMessageConverter">
                    <constructor-arg>
                        <bean
                            class="org.springframework.oxm.xstream.XStreamMarshaller">
                            <property name="streamDriver">
                                <bean
                                    class="com.thoughtworks.xstream.io.xml.DomDriver" />
                            </property>
 
                            <property name="autodetectAnnotations">
                                <value>true</value>
                            </property>
                            <!--可以与xml互换的对象，需要使用XStream的注解，注解的使用方法请参XStream官网-->
                            <!-- 
                                <property name="annotatedClasses">
                                <list>
                                <value>com.xxx.XxxxDTO</value>
                                </list>
                                </property>
                            -->
                        </bean>
                    </constructor-arg>
                </bean>
                <bean
                    class="org.springframework.http.converter.FormHttpMessageConverter" />
                <bean
                    class="org.springframework.http.converter.BufferedImageHttpMessageConverter" />
                <bean
                    class="org.springframework.http.converter.ByteArrayHttpMessageConverter" />
                <bean
                    class="org.springframework.http.converter.StringHttpMessageConverter" />
                <!-- 
                    <bean class="org.springframework.http.converter.ResourceHttpMessageConverter"/>
                -->
                <!--可以增加其他数据类型,请参考spring的API-->
            </list>
        </property>
    </bean>
    <bean id="fmXmlEscape"
        class="freemarker.template.utility.XmlEscape" />
    <bean
        class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="ignoreAcceptHeader" value="true" />
        <property name="defaultContentType" value="text/html" />
 
        <!-- 扩展名至mimeType的映射,即 /user.json => application/json -->
        <property name="mediaTypes">
            <map>
                <entry key="html" value="text/html" />
                <entry key="json" value="application/json" />
                <entry key="xml" value="application/xml" />
            </map>
        </property>
        <!-- 用于开启 /userinfo/123?format=json 的支持 -->
        <property name="favorParameter" value="false" />
 
        <property name="viewResolvers">
            <list>
                <bean
                    class="org.springframework.web.servlet.view.BeanNameViewResolver" />
            </list>
        </property>
        <property name="defaultViews">
            <list>
                <!-- for application/json -->
                <bean
                    class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
                <!-- for application/xml -->
                <bean
                    class="org.springframework.web.servlet.view.xml.MarshallingView">
                    <property name="marshaller">
                        <bean
                            class="org.springframework.oxm.xstream.XStreamMarshaller" />
                    </property>
                </bean>
            </list>
        </property>
    </bean>
 
    <bean id="localeResolver"
        class="org.springframework.web.servlet.i18n.CookieLocaleResolver">
        <property name="cookieName" value="clientlanguage" />
        <property name="cookieMaxAge" value="-1" />
    </bean>
    <!--
        <bean
        class="org.springframework.aop.framework.autoproxy.DefaultAdvisorAutoProxyCreator"
        depends-on="lifecycleBeanPostProcessor">
        <property name="proxyTargetClass" value="true" />
        </bean>
         
        <bean
        class="org.apache.shiro.spring.security.interceptor.AuthorizationAttributeSourceAdvisor">
        <property name="securityManager" ref="securityManager"></property>
        </bean>
    -->
    <bean
        class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <prop key="java.lang.Throwable">500</prop>
            </props>
        </property>
        <property name="warnLogCategory" value="WARN"></property>
        <property name="defaultErrorView" value="500"></property>
        <property name="defaultStatusCode" value="500"></property>
        <property name="statusCodes">
            <props>
                <prop key="404">404</prop>
                <prop key="500">500</prop>
            </props>
        </property>
 
    </bean>
 
</beans>

五、接下来就开始写java类了，我们将使用注解来实现功能

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@Controller
@RequestMapping
public class ContentController {
 
    @Autowired
    private TemplatesService templatesService;
    @Autowired
    private BlogContentService contentService;
    @Autowired
    private BlogInfoService blogInfoService;
     
    @RequestMapping("{username}/{contentId}.html")
    public String content(HttpServletRequest request, @PathVariable
    String username, @PathVariable
    String contentId) {
        // 获得模版路径执行跳转
        String path=templatesService.getTemplatesPath(username);
        BlogInfo info = blogInfoService.findBlogInfoByUserName(username);
        if(info==null){
            info = new BlogInfo();
            info.setName("OSblog");
            info.setDes("我的博客我做主");
            info.setNickname("Osblog博客");
        }
        request.setAttribute("bloginfo", info);
        contentService.updateclicks(contentId);
        request.setAttribute("bloguser", username);
        BlogContent content=contentService.getEntityById(contentId);
        request.setAttribute("content", content);
        return path+"/content";
    }
}

这是一个控制器，和Struts中Action是一样的，上面的方法是动态接受请求的方法，比如请求是http://localhost:8080/osblog/12.html,在控制器中取到的username=osblog,contentid=12,是不是很智能啊。
剩下的数据层和业务层写法就没有什么可写的了，注解的方式也和普通注解一样。在配置文件中写到了：

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<bean
        class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"
        p:prefix="/" p:suffix=".ftl">
        <property name="cache" value="false" />
        <property name="viewClass"
            value="org.springframework.web.servlet.view.freemarker.FreeMarkerView" />
        <property name="contentType" value="text/html;charset=UTF-8"></property>
        <property name="exposeRequestAttributes" value="true" />
        <property name="exposeSessionAttributes" value="true" />
        <property name="exposeSpringMacroHelpers" value="true" />
        <property name="requestContextAttribute" value="base"></property>
        <property name="order" value="0"></property>
    </bean>

这个就是指明了你调转的视图是Freemarker的，同理另一个指明的是jsp按照顺序他们会自动选这你要跳转的视图。不过在注解是@RequestMapping("sitemap.html")里面的值绝对不能重复的。

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