前一篇介绍了FreeMarker的基本使用，本例介绍Spring MVC与FreeMarker整合

　　不熟悉项目搭建，可参考
　　【FreeMarker】FreeMarker快速入门（一）　

整合

　　1、新建Spring MVC项目test-freemarker ，参考：【Maven】Eclipse 使用Maven创建SpringMVC Web项目

　　　　web.xml文件如下：

  1.  <?xml version="1.0" encoding="UTF-8"?>
  2.  <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"
  3.      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
  5.  
  6.      <display-name>test-freemarker</display-name>
  7.  
  8.      <!--指定Spring的配置在文件所在的目录，默认配置在WEB-INF目录下-->
  9.      <context-param>
  10.          <param-name>contextConfigLocation</param-name>
  11.          <param-value>classpath:spring-context.xml</param-value>
  12.      </context-param>
  13.  
  14.      <!-- Spring配置：needed for ContextLoaderListener -->
  15.      <!-- Bootstraps the root web application context before servlet initialization -->
  16.      <listener>
  17.          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  18.      </listener>
  19.  
  20.      <!-- Spring MVC配置 -->
  21.      <!-- The front controller of this Spring Web application, responsible for
  22.          handling all application requests -->
  23.      <servlet>
  24.          <servlet-name>spring</servlet-name>
  25.          <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  26.          <!-- 可以自定义servlet.xml配置文件的位置和名称，默认为WEB-INF目录下，名称为[<servlet-name>]-servlet.xml，如spring-servlet.xml -->
  27.          <init-param>
  28.              <param-name>contextConfigLocation</param-name>
  29.              <param-value>classpath:spring-mvc.xml</param-value>
  30.          </init-param>
  31.          <load-on-startup>1</load-on-startup>
  32.      </servlet>
  33.  
  34.      <!-- Map all requests to the DispatcherServlet for handling -->
  35.      <servlet-mapping>
  36.          <servlet-name>spring</servlet-name>
  37.          <url-pattern>/</url-pattern>
  38.      </servlet-mapping>
  39.  
  40.      <!-- 中文过滤器 -->
  41.      <filter>
  42.          <filter-name>CharacterEncodingFilter</filter-name>
  43.          <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  44.          <init-param>
  45.              <param-name>encoding</param-name>
  46.              <param-value>UTF-8</param-value>
  47.          </init-param>
  48.          <init-param>
  49.              <param-name>forceEncoding</param-name>
  50.              <param-value>true</param-value>
  51.          </init-param>
  52.      </filter>
  53.      <filter-mapping>
  54.          <filter-name>CharacterEncodingFilter</filter-name>
  55.          <url-pattern>/*</url-pattern>
  56.      </filter-mapping>
  57.  
  58.  </web-app>

　　2、添加FreeMarker依赖

  1.  <!-- Spring对外部依赖支持 -->
  2.  <dependency>
  3.      <groupId>org.springframework</groupId>
  4.      <artifactId>spring-context-support</artifactId>
  5.      <version>5.1.4.RELEASE</version>
  6.  </dependency>
  7.  
  8.  <!-- freemarker -->
  9.  <dependency>
  10.      <groupId>org.freemarker</groupId>
  11.      <artifactId>freemarker</artifactId>
  12.      <version>2.3.28</version>
  13.  </dependency>

　　　完整POM如下：

  1.  <project xmlns="http://maven.apache.org/POM/4.0.0"
  2.      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  4.      <modelVersion>4.0.0</modelVersion>
  5.      <groupId>com.test</groupId>
  6.      <artifactId>test-freemarker</artifactId>
  7.      <packaging>war</packaging>
  8.      <version>0.0.1-SNAPSHOT</version>
  9.      <name>test-freemarker Maven Webapp</name>
  10.  
  11.      <!-- 定义maven变量 -->
  12.      <properties>
  13.          <!-- spring -->
  14.          <spring.version>5.1.4.RELEASE</spring.version>
  15.  
  16.          <!-- logback -->
  17.          <slf4j-api.version>1.7.5</slf4j-api.version>
  18.          <logback.version>0.9.30</logback.version>
  19.  
  20.          <!-- Servlet -->
  21.          <servlet.version>3.0.1</servlet.version>
  22.          <jsp-api.version>2.2</jsp-api.version>
  23.  
  24.          <!-- jstl -->
  25.          <jstl.version>1.2</jstl.version>
  26.          <standard.version>1.1.2</standard.version>
  27.  
  28.          <!-- test junit -->
  29.          <junit.version>3.8.1</junit.version>
  30.  
  31.          <!-- jdk -->
  32.          <jdk.version>1.8</jdk.version>
  33.          <maven.compiler.plugin.version>2.3.2</maven.compiler.plugin.version>
  34.      </properties>
  35.  
  36.      <dependencies>
  37.  
  38.          <!-- Spring IOC 核心容器 -->
  39.          <dependency>
  40.              <groupId>org.springframework</groupId>
  41.              <artifactId>spring-core</artifactId>
  42.              <version>${spring.version}</version>
  43.          </dependency>
  44.  
  45.          <dependency>
  46.              <groupId>org.springframework</groupId>
  47.              <artifactId>spring-beans</artifactId>
  48.              <version>${spring.version}</version>
  49.          </dependency>
  50.  
  51.          <dependency>
  52.              <groupId>org.springframework</groupId>
  53.              <artifactId>spring-context</artifactId>
  54.              <version>${spring.version}</version>
  55.          </dependency>
  56.  
  57.          <dependency>
  58.              <groupId>org.springframework</groupId>
  59.              <artifactId>spring-expression</artifactId>
  60.              <version>${spring.version}</version>
  61.          </dependency>
  62.  
  63.          <!-- Spring AOP 切面 模块 -->
  64.          <dependency>
  65.              <groupId>org.springframework</groupId>
  66.              <artifactId>spring-aop</artifactId>
  67.              <version>${spring.version}</version>
  68.          </dependency>
  69.  
  70.          <!-- Spring WEB MVC 模块 -->
  71.          <dependency>
  72.              <groupId>org.springframework</groupId>
  73.              <artifactId>spring-web</artifactId>
  74.              <version>${spring.version}</version>
  75.          </dependency>
  76.  
  77.          <dependency>
  78.              <groupId>org.springframework</groupId>
  79.              <artifactId>spring-webmvc</artifactId>
  80.              <version>${spring.version}</version>
  81.          </dependency>
  82.  
  83.          <!-- Spring对外部依赖支持 -->
  84.          <dependency>
  85.              <groupId>org.springframework</groupId>
  86.              <artifactId>spring-context-support</artifactId>
  87.              <version>5.1.4.RELEASE</version>
  88.          </dependency>
  89.  
  90.          <!-- freemarker -->
  91.          <dependency>
  92.              <groupId>org.freemarker</groupId>
  93.              <artifactId>freemarker</artifactId>
  94.              <version>2.3.28</version>
  95.          </dependency>
  96.  
  97.          <!-- logback -->
  98.          <dependency>
  99.              <groupId>org.slf4j</groupId>
  100.              <artifactId>slf4j-api</artifactId>
  101.              <version>${slf4j-api.version}</version>
  102.              <type>jar</type>
  103.              <scope>compile</scope>
  104.          </dependency>
  105.  
  106.          <dependency>
  107.              <groupId>ch.qos.logback</groupId>
  108.              <artifactId>logback-core</artifactId>
  109.              <version>${logback.version}</version>
  110.              <type>jar</type>
  111.          </dependency>
  112.  
  113.          <dependency>
  114.              <groupId>ch.qos.logback</groupId>
  115.              <artifactId>logback-classic</artifactId>
  116.              <version>${logback.version}</version>
  117.              <type>jar</type>
  118.          </dependency>
  119.  
  120.          <dependency>
  121.              <groupId>ch.qos.logback</groupId>
  122.              <artifactId>logback-access</artifactId>
  123.              <version>${logback.version}</version>
  124.          </dependency>
  125.  
  126.          <!-- Servlet -->
  127.          <dependency>
  128.              <groupId>javax.servlet</groupId>
  129.              <artifactId>javax.servlet-api</artifactId>
  130.              <version>${servlet.version}</version>
  131.              <scope>provided</scope>
  132.          </dependency>
  133.          <dependency>
  134.              <groupId>javax.servlet.jsp</groupId>
  135.              <artifactId>jsp-api</artifactId>
  136.              <version>${jsp-api.version}</version>
  137.              <scope>provided</scope>
  138.          </dependency>
  139.  
  140.          <!-- test -->
  141.          <dependency>
  142.              <groupId>junit</groupId>
  143.              <artifactId>junit</artifactId>
  144.              <version>${junit.version}</version>
  145.              <scope>test</scope>
  146.          </dependency>
  147.  
  148.      </dependencies>
  149.  
  150.      <build>
  151.          <plugins>
  152.              <!-- define the project compile level -->
  153.              <plugin>
  154.                  <groupId>org.apache.maven.plugins</groupId>
  155.                  <artifactId>maven-compiler-plugin</artifactId>
  156.                  <version>${maven.compiler.plugin.version}</version>
  157.                  <configuration>
  158.                      <source>${jdk.version}</source>
  159.                      <target>${jdk.version}</target>
  160.                  </configuration>
  161.              </plugin>
  162.          </plugins>
  163.          <finalName>test-freemarker</finalName>
  164.      </build>
  165.  
  166.  </project>

　　3、讲freemarker配置类注入，spring容器，编辑spring-context.xml文件

  1.  <?xml version="1.0" encoding="UTF-8"?>
  2.  <beans xmlns="http://www.springframework.org/schema/beans"
  3.      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.      xmlns:context="http://www.springframework.org/schema/context"
  5.      xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"
  6.      xmlns:tx="http://www.springframework.org/schema/tx"
  7.      xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
  8.          http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd
  9.          http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
  10.          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
  11.  
  12.      <context:component-scan base-package="com.test.freemarker"></context:component-scan>
  13.  
  14.      <bean id="freemarkerConfig"
  15.            class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
  16.          <property name="templateLoaderPath" value="" />
  17.          <property name="freemarkerSettings">
  18.              <props>
  19.                  <!-- 设置标签类型 两种：[] 和 <> , []这种标记解析要快些 -->
  20.                  <prop key="tag_syntax">auto_detect</prop>
  21.                  <!-- 检查模板更新时间间隔，默认5s -->
  22.                  <prop key="template_update_delay">1</prop>
  23.                  <prop key="default_encoding">UTF-8</prop>
  24.                  <prop key="url_escaping_charset">UTF-8</prop>
  25.                  <prop key="locale">zh-CN</prop>
  26.                  <!-- 时间格式化 -->
  27.                  <prop key="datetime_format">yyyy-MM-dd HH:mm:ss</prop>
  28.                  <prop key="date_format">yyyy-MM-dd</prop>
  29.                  <prop key="time_format">HH:mm:ss</prop>
  30.                  <prop key="number_format">0.##########</prop>
  31.                  <!-- 去掉多余的空格 -->
  32.                  <prop key="whitespace_stripping">true</prop>
  33.                  <prop key="classic_compatible">true</prop>
  34.                  <prop key="template_exception_handler">ignore</prop>
  35.              </props>
  36.          </property>
  37.      </bean>
  38.  </beans>

　　4、在springmvc配置文件spring-mvc.xml中，配置freemarker视图解析器，（如果其中包含jsp视图解析器，可以删除）

  1.  <?xml version="1.0" encoding="UTF-8"?>
  2.  <beans xmlns="http://www.springframework.org/schema/beans"
  3.      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.      xmlns:context="http://www.springframework.org/schema/context"
  5.      xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.      xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
  7.          http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
  8.          http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
  9.  
  10.      <!--SpringMVC只是控制网站跳转逻辑  -->
  11.      <!-- 只扫描控制器 -->
  12.      <context:component-scan base-package="com.test.freemarker.controller" use-default-filters="false">
  13.          <context:include-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
  14.      </context:component-scan>
  15.  
  16.      <!-- 视图解析器
  17.      <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  18.          <property name="prefix" value="/WEB-INF/pages/"></property>
  19.          <property name="suffix" value=".jsp"></property>
  20.      </bean>-->
  21.  
  22.      <!-- 视图解析器 :针对freemarker的视图配置 -->
  23.      <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
  24.          <property name="prefix" value="/page/" />
  25.          <property name="suffix" value=".html" />
  26.          <property name="cache" value="true" />
  27.          <property name="contentType" value="text/html;charset=UTF-8"></property>
  28.          <property name="requestContextAttribute" value="request" />
  29.          <property name="exposeSpringMacroHelpers" value="true" />
  30.          <property name="exposeRequestAttributes" value="true" />
  31.          <property name="exposeSessionAttributes" value="true" />
  32.      </bean>
  33.  
  34.      <!-- 默认的注解映射的支持 -->
  35.      <mvc:annotation-driven></mvc:annotation-driven>
  36.  
  37.      <!-- 对静态资源文件的访问 -->
  38.      <mvc:default-servlet-handler/>
  39.  
  40.  </beans>

　　5、编辑freemarker页面模板，webapp/page/first.html

  1.  <!DOCTYPE html>
  2.  <html>
  3.  <head>
  4.  <meta charset="UTF-8">
  5.  <title>Insert title here</title>
  6.  </head>
  7.  <body>
  8.      <h1>${username}</h1>
  9.  </body>
  10.  </html>

　　6、编辑controller，FreemarkerController.java

  1.  package com.test.freemarker.controller;
  2.  
  3.  import java.util.ArrayList;
  4.  import java.util.Date;
  5.  import java.util.HashMap;
  6.  import java.util.List;
  7.  import java.util.Map;
  8.  
  9.  import org.springframework.stereotype.Controller;
  10.  import org.springframework.web.bind.annotation.RequestMapping;
  11.  import org.springframework.web.servlet.ModelAndView;
  12.  
  13.  import com.test.freemarker.method.SortMethod;
  14.  
  15.  @Controller
  16.  @RequestMapping("/freemarker")
  17.  public class FreemarkerController {
  18.  
  19.      @RequestMapping("/first")
  20.      public ModelAndView first() {
  21.          ModelAndView modelAndView = new ModelAndView("first");
  22.          modelAndView.addObject("username", "Hello Freemarker!");
  23.          return modelAndView;
  24.      }
  25.  
  26.  }
  27.

　　7、发布项目到tomcat，并运行，输入地址：http://localhost:8080/test-freemarker/freemarker/first

　　　　

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