基于注解的SPRINGMVC+FREEMARKER环境搭建

首先用IDE建一个web工程。(这个就不详细介绍了) 引入响应的jar包 web.xml <?xml version="1.0" ?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<!-- Spring 服务层的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- Spring 容器启动监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!--为DispatcherServlet建立映射 -->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>

1. SpringMVC另外一个重要的配置文件。

1. DispatcherServlet会根绝web.xml中配置的<servlet-name>去找<servlet-name>-servlet.xml的文件来加载spring的一些配置信息。我这里就应该取名叫springmvc-servlet.xml

<?xmlversion="1.0"encoding="UTF-8"?>
<beans

xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd"
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">

<!--对web包中的所有类进行扫描，以完成Bean创建和自动依赖注入的功能-->
<context:component-scanbase-package="com.liba.spring.mvc"/>

<!--启动SpringMVC的注解功能，完成请求和注解POJO的映射请求映射-->
<beanclass="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

<!--以下三种视图配置根据需要任选一种即可-->

<!--一般的视图配置-->
<!--<beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"
p:prefix="/WEB-INF/view/"p:suffix=".jsp"/>
p:prefix="/WEB-INF/view/"p:suffix=".jsp"/>-->

<!--针对freemarker的视图配置-->
<beanid="viewResolver"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<propertyname="cache"value="true"/>
<propertyname="prefix"value=""/>
<propertyname="suffix"value=".ftl"/>
<propertyname="contentType"value="text/html;charset=UTF-8"></property>
<propertyname="requestContextAttribute"value="request"/>
<propertyname="exposeSpringMacroHelpers"value="true"/>
<propertyname="exposeRequestAttributes"value="true"/>
<propertyname="exposeSessionAttributes"value="true"/>
</bean>


<!--ViewresolverscanalsobeconfiguredwithResourceBundlesorXMLfiles.
IfyouneeddifferentviewresolvingbasedonLocale,youhavetousethe
resourcebundleresolver.
IfyouneeddifferentviewresolvingbasedonLocale,youhavetousethe
resourcebundleresolver.-->
<!--这个是针对返回视图还是json值的视图配置来分别处理同步和异步请求-->
<!--<bean
class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<propertyname="mediaTypes">
<map>
<entrykey="html"value="text/html"/>
<entrykey="json"value="application/json"/>
</map>
</property>
<propertyname="favorParameter"value="true"/>
<propertyname="viewResolvers">
<list>
<beanclass="org.springframework.web.servlet.view.BeanNameViewResolver"/>
<beanid="viewResolver"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<propertyname="cache"value="true"/>
<propertyname="prefix"value=""/>
<propertyname="suffix"value=".ftl"/>
<propertyname="contentType"value="text/html;charset=UTF-8"></property>
<propertyname="requestContextAttribute"value="request"/>
<propertyname="exposeSpringMacroHelpers"value="true"/>
<propertyname="exposeRequestAttributes"value="true"/>
<propertyname="exposeSessionAttributes"value="true"/>
</bean>
</list>
</property>
<propertyname="defaultContentType"value="text/html"/>
</bean>

class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
<propertyname="mediaTypes">
<map>
<entrykey="html"value="text/html"/>
<entrykey="json"value="application/json"/>
</map>
</property>
<propertyname="favorParameter"value="true"/>
<propertyname="viewResolvers">
<list>
<beanclass="org.springframework.web.servlet.view.BeanNameViewResolver"/>
<beanid="viewResolver"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
<propertyname="cache"value="true"/>
<propertyname="prefix"value=""/>
<propertyname="suffix"value=".ftl"/>
<propertyname="contentType"value="text/html;charset=UTF-8"></property>
<propertyname="requestContextAttribute"value="request"/>
<propertyname="exposeSpringMacroHelpers"value="true"/>
<propertyname="exposeRequestAttributes"value="true"/>
<propertyname="exposeSessionAttributes"value="true"/>
</bean>
</list>
</property>
<propertyname="defaultContentType"value="text/html"/>
</bean>
-->
</beans>

1. 
   

1. 如果是使用freemarker最为视图模板需要再spring的配置文件applicationContext.xml中加入以下配置

<beanid="freemarkerConfig"
class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
<propertyname="templateLoaderPath"value="/WEB-INF/view/"/>
<propertyname="freemarkerSettings">
<props>
<propkey="template_update_delay">0</prop>
<propkey="default_encoding">UTF-8</prop>
<propkey="number_format">0.##########</prop>
<propkey="datetime_format">yyyy-MM-ddHH:mm:ss</prop>
<propkey="classic_compatible">true</prop>
<propkey="template_exception_handler">ignore</prop>
</props>
</property>
</bean>

1. 
   

1. Controller建立

importjavax.servlet.http.HttpServletRequest;



importorg.springframework.stereotype.Controller;

importorg.springframework.web.bind.annotation.RequestMapping;

importorg.springframework.web.bind.annotation.RequestMethod;

importorg.springframework.web.servlet.ModelAndView;

@Controller


@Controller
publicclassSpringMvcController{

@RequestMapping(value="/welcome",method={RequestMethod.GET})
publicModelAndViewgetFirstPage(HttpServletRequestrequest){
//welcom就是视图的名称（welcom.ftl）
ModelAndViewmv=newModelAndView("welcom");
mv.addObject("name","MyFirstSpringMvc");
returnmv;
}
}

@RequestMapping(value="/welcome",method={RequestMethod.GET})

publicModelAndViewgetFirstPage(HttpServletRequestrequest){
//welcom就是视图的名称（welcom.ftl）
ModelAndViewmv=newModelAndView("welcom");
mv.addObject("name","MyFirstSpringMvc");
returnmv;
}
//welcom就是视图的名称（welcom.ftl）
ModelAndViewmv=newModelAndView("welcom");
mv.addObject(
mv.addObject("name","MyFirstSpringMvc");

returnmv;
}
}
}

1. 在url上敲http://localhost:8080/welcome就会到WEB-INF/view/welcom.ftl页面渲染数据

1. welcom.ftl页面

<!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<metahttp-equiv="Content-Type"content="text/html;charset=ISO-8859-1">
<title>Inserttitlehere</title>
</head>
<body>
Hello${name}
</body>
</html>