FreeMarker-在spring mvc上使用

Maven配置：

<project xmlns="http://maven.apache.org/POM/4.0.0"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
       <groupId>com.hu</groupId>
       <artifactId>maven-freemarker-springmvc</artifactId>
       <version>0.0.1-SNAPSHOT</version>
       <packaging>war</packaging>
       <dependencies>
               <dependency>
                       <groupId>javax.servlet</groupId>
                       <artifactId>javax.servlet-api</artifactId>
                       <version>3.0.1</version>
                       <scope>provided</scope>
               </dependency>
               <dependency>
                       <groupId>jstl</groupId>
                       <artifactId>jstl</artifactId>
                       <version>1.2</version>
               </dependency>
               <dependency>
                       <groupId>org.freemarker</groupId>
                       <artifactId>freemarker</artifactId>
                       <version>2.3.20</version>
               </dependency>
               <dependency>
                       <groupId>org.springframework</groupId>
                       <artifactId>spring-context-support</artifactId>
                       <version>3.2.9.RELEASE</version>
               </dependency>
               <dependency>
                       <groupId>org.springframework</groupId>
                       <artifactId>spring-web</artifactId>
                       <version>3.2.9.RELEASE</version>
               </dependency>
               <dependency>
                       <groupId>org.springframework</groupId>
                       <artifactId>spring-webmvc</artifactId>
                       <version>3.2.9.RELEASE</version>
               </dependency>
       </dependencies>
       <build>
               <plugins>
                       <plugin>
                               <groupId>org.apache.tomcat.maven</groupId>
                               <artifactId>tomcat7-maven-plugin</artifactId>
                               <version>2.2</version>
                               <configuration>
                                       <port>801</port>
                                       <path>/</path>
                               </configuration>
                       </plugin>
               </plugins>
               <!-- 配置编译文件 -->
               <resources>
                       <!-- src/main/java 里面的资源文件进行编译到classes 中 -->
                       <resource>
                               <directory>src/main/java</directory>
                               <includes>
                                       <include>**/*.xml</include>
                               </includes>
                       </resource>
                       <!-- 上面修改了默认配置，打破了规则，也要配置把resources中的资源文件让其被编译到class -->
                       <resource>
                               <directory>src/main/resources</directory>
                               <includes>
                                       <include>**/*.xml</include>
                                       <include>**/*.properties</include>
                               </includes>
                       </resource>
               </resources>
       </build>
</project>

Web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://java.sun.com/xml/ns/javaee"
       xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
       version="3.0">
       <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>
</web-app>

Spring MVC配置

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       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/context  
      http://www.springframework.org/schema/context/spring-context-3.0.xsd">

       <context:component-scan base-package="com.hu" />

       <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
       <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

       <!-- 配置Freemarker属性文件路径 -->
       <bean id="freemarkerConfiguration" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
               <property name="location" value="classpath:freemarker.properties" />
       </bean>
       <!-- 配置freeMarker模板 -->
       <bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
               <!-- 视图解析器在/WEB-INF/ftl/路径下扫描视图文件 -->
               <property name="templateLoaderPath" value="/WEB-INF/ftl/" />
               <property name="freemarkerSettings">  
           <props>  
               <prop key="template_update_delay">0</prop>  
               <prop key="default_encoding">UTF-8</prop>  
               <prop key="number_format">0.##########</prop>  
               <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>  
               <prop key="classic_compatible">true</prop>  
               <prop key="template_exception_handler">ignore</prop>  
           </props>  
       </property>  
       </bean>
       <!-- 配置freeMarker视图解析器 -->
       <bean id="freemakerViewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
               <!-- 扫描路径內所有以ftl結尾的文件 -->
               <property name="suffix" value=".ftl"/>
               <!-- 配置freemarker 可以在 freemarker.properties 中配置，如果在这里配置，则不用freemarker.properties-->
               <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="requestContextAttribute" value="request" />
               <!-- 给视图解析器配置优先級，你可以给之前jsp视图解析器的值配为2 -->
               <property name="order" value="1" />
       </bean>

</beans>

模板文件：

<html>
<head>
   <title>FreeMarker Hello World</title>
</head>
<body>
<table class="datatable">
   <#list users as user>
       <tr>
           <td>${user.id}</td> <td>${user.name}</td>
       </tr>
   </#list>
</table>
</body>
</html>

控制器：

@Controller
public class DemoController {
       @RequestMapping("/demo")
       public String demo(Model model) {
               List<Map<String, Object>> users = new ArrayList<>();
               for (int i = 0; i < 3; i++) {
                       Map<String, Object> user = new HashMap<>();
                       user.put("id",  i);
                       user.put("name", "Hello Spring FreeMarker");
                       users.add(user);
               }
               model.addAttribute("users", users);
               return "demo";
       }
}