FreeMarker整合Spring 3
1、新建WebProject，工程名称是SpringFreemarker；然后手动添加jar包，需要的jar包如下：
2、在web.xml中添加如下配置：
<!--加载Spring容器配置-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--设置Spring容器加载配置文件路径-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:applicationContext-*.xml</param-value>
</context-param>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcher.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
上面分别是添加Spring的监听器、以及配置Spring的配置文件、还有SpringMVC的控制器；
3、在WEB-INF中添加文件dispatcher.xml，和web.xml中的对应。内容如下：
<?xmlversion="1.0"encoding="UTF-8"?>
<beansxmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
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-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-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/util
http://www.springframework.org/schema/util/spring-util-3.0.xsd">
<context:component-scanbase-package="com.hoo"/>
<!--annotation的方法映射适配器
<beanid="handlerAdapter"class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>
-->
<!--annotation默认的方法映射适配器-->
<beanid="handlerMapping"class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>
<beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver">
<propertyname="viewClass"value="org.springframework.web.servlet.view.JstlView"/>
</bean>
</beans>
上面是SpringMVC的基本配置
4、在src中添加applicationContext-beans.xml，内容如下：
<?xmlversion="1.0"encoding="UTF-8"?>
<beansxmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-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/util
http://www.springframework.org/schema/util/spring-util-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
</beans>
里面可以添加一些bean的配置
5、在src目录添加freemarker.properties配置文件，这个文件是freemarker一些常用的转换，内容如下：
tag_syntax=auto_detect
template_update_delay=2
default_encoding=UTF-8
output_encoding=UTF-8
locale=zh_CN
date_format=yyyy-MM-dd
time_format=HH:mm:ss
datetime_format=yyyy-MM-ddHH:mm:ss
6、在dispatcher.xml中添加freemarker的配置，配置如下：
<!--设置freeMarker的配置文件路径-->
<beanid="freemarkerConfiguration"
class="org.springframework.beans.factory.config.PropertiesFactoryBean">
<propertyname="location"value="classpath:freemarker.properties"/>
</bean>
<!--配置freeMarker的模板路径-->
<beanid="freemarkerConfig"class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"><!--propertyname="freemarkerSettings"ref="freemarkerConfiguration"/-->
<propertyname="templateLoaderPath">
<value>/WEB-INF/ftl/</value>
</property>
<propertyname="freemarkerVariables">
<map>
<entrykey="xml_escape"value-ref="fmXmlEscape"/>
</map>
</property>
</bean>
<beanid="fmXmlEscape"class="freemarker.template.utility.XmlEscape"/>
<!--配置freeMarker视图解析器-->
<beanid="viewResolver"class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<propertyname="viewClass"value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
<propertyname="viewNames"value="*.ftl"/>
<propertyname="contentType"value="text/html;charset=utf-8"/>
<propertyname="cache"value="true"/>
<propertyname="prefix"value=""/>
<propertyname="suffix"value=""/>
<propertyname="order"value="2"/>
</bean>
上面最关键的就是freeMarker的视图解析器viewResolver的配置，viewClass是使用哪个视图解析器，这里是类路径；其他的和jsp的视图解析器都很类似。
7、下面在WEB-INF中添加ftl文件夹，然后添加hello.ftl/hi.ftl两个测试模板文件，内容分别是：
hello.ftl
<html><body><h1>sayhello${name}</h1><br/>${(1==1)?string("yes","no")}</body></html>
hi.ftl
<html><body><h1>sayhello${name}</h1><br/>${(1!=1)?string("yes","no")}</body></html>
8、添加Controller控制器，代码如下：
packagecom.hoo.controller;
importorg.springframework.stereotype.Controller;
importorg.springframework.ui.ModelMap;
importorg.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/freeMarker")
publicclassHelloWorldController{
@RequestMapping("/hello")
publicStringsayHello(ModelMapmap){
//System.out.println("sayHello……");
map.addAttribute("name","World!");
return"/hello.ftl";
}
@RequestMapping("/hi")
publicStringsayHi(ModelMapmap){
//System.out.println("sayhi……");
map.put("name","jojo");
return"/hi.ftl";
}
@RequestMapping("/jsp")
publicStringjspRequest(ModelMapmap){
//System.out.println("jspRequest……");
map.put("name","Congratulation,yougotit.");
return"/temp.jsp";
}
}
9、添加index.jsp的测试链接或temp.jsp的内容：
index.jsp
<body>
<ahref="freeMarker/hello.do">sayhello</a><br/>
<ahref="freeMarker/hi.do">sayhi</a><br/>
<ahref="freeMarker/jsp.do">jspRequest</a>
</body>
temp.jsp
<body>
<h3>${name}</h3>
</body>
如果运行无错误，并输出正确的结果就整合成功！~.~