FreeMarker+SpringMVC整合(五)

前言：前面已经讲过了freemarker的入门，还不了解的可以到我的博客里面找来看。

 

先展示我的项目目录结构，我是用IDEA开发的

这里怀旧一下所有使用配置文件方式配置springmvc在项目中你只需要换成扫描和注解的方式就可以了。

1.导包

<!-- https://mvnrepository.com/artifact/javax.servlet/javax.servlet-api --><dependency>  <groupId>javax.servlet</groupId>  <artifactId>javax.servlet-api</artifactId>  <version>4.0.0</version>  <scope>provided</scope></dependency><!-- https://mvnrepository.com/artifact/org.freemarker/freemarker --><dependency>  <groupId>org.freemarker</groupId>  <artifactId>freemarker</artifactId>  <version>2.3.23</version></dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-core --><dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-core</artifactId>  <version>3.2.0.RELEASE</version></dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-context --><dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-context</artifactId>  <version>3.2.0.RELEASE</version></dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-context --><dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-beans</artifactId>  <version>3.2.0.RELEASE</version></dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-context --><dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-web</artifactId>  <version>3.2.0.RELEASE</version></dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-context --><dependency>  <groupId>org.springframework</groupId>  <artifactId>spring-webmvc</artifactId>  <version>3.2.0.RELEASE</version></dependency>

2.web.xml配置文件

<?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" xmlns:web="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" id="WebApp_ID" version="3.0">    <servlet>        <servlet-name>freemarker</servlet-name>        <servlet-class>freemarker.ext.servlet.FreemarkerServlet</servlet-class>        <!--下面的配置freemarke的ftl文件或者html，jsp等页面的位置 -->        <init-param>            <param-name>TemplatePath</param-name>            <param-value>/</param-value>        </init-param>        <!-- 可选配置，上面的为必须配置        <init-param>            <param-name>NoCache</param-name>            <param-value>true</param-value>        </init-param>        <init-param>            <param-name>ContentType</param-name>            <param-value>text/html; charset=UTF-8</param-value>        </init-param>        <init-param>            <param-name>template_update_delay</param-name>            <param-value>0</param-value>        </init-param>        <init-param>            <param-name>default_encoding</param-name>            <param-value>ISO-8859-1</param-value>        </init-param>        <init-param>            <param-name>number_format</param-name>            <param-value>0.##########</param-value>        </init-param>         -->        <!-- 是否和服务器（tommcat)一起启动。-->        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>freemarker</servlet-name>        <url-pattern>*.html</url-pattern><!--页面的后缀，如果页面是ftl文件就写*.ftl,如果是html就写*.html-->    </servlet-mapping>    <servlet>        <servlet-name>mvc</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>classpath:spring-web-servlet.xml</param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>mvc</servlet-name>        <url-pattern>/web/*</url-pattern>    </servlet-mapping>    <filter>        <filter-name>encodingFilter</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>    </filter>    <filter-mapping>        <filter-name>encodingFilter</filter-name>        <url-pattern>/*</url-pattern>    </filter-mapping></web-app>

3.springmvc（spring-web-servlet.xml）配置文件

<?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:mvc="http://www.springframework.org/schema/mvc"       xmlns:context="http://www.springframework.org/schema/context"       xmlns:p="http://www.springframework.org/schema/p"       xsi:schemaLocation="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   http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd   ">    <!-- 声明bean的name，因为使用了BeanNameUrlHandlerMapping，所以不是定义id,用户调用的URL将通过bean的name匹配-->    <bean name="freemarker" class="com.rabbit.FreemarkerController" />    <!-- 声明 BeanNameUrlHandlerMapping，使用名称映射-->    <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">        <property name="mappings">            <props>                <prop key="index.action">freemarker</prop>            </props>        </property>    </bean>    <!-- 支持servlet与jsp视图解析，可进行进一步处理，此步可省略， -->    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <!--配置前置返回页面路径前缀处理-->        <property name="prefix" value="/WEB-INF/page/"/>        <!--配置前置返回页面路径后缀处理-->        <property name="suffix" value=".html"/>    </bean></beans>

4.静态页面

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

5.FreeMarkerController

package com.rabbit;import org.springframework.web.servlet.ModelAndView;import org.springframework.web.servlet.mvc.Controller;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;/** * Created by vip on 2017/12/18. */public class FreemarkerController implements Controller {    public FreemarkerController() {        System.out.println("FreemarkerController构造函数被调用");    }    public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {        System.out.print("-----------------------------");        List<Map<String, Object>> users = new ArrayList<>();        for (int i = 0; i < 5; i++) {            Map<String, Object> user= new HashMap<>();            user.put("firstname", "firstname" + i);            user.put("lastname", "lastname" + i);            users.add(user);        }        Map<String, Object> map = new HashMap<>();        map.put("users", users);        return new ModelAndView("index", map);    }}

6.启动项目

访问地址：http://localhost:8080/web/index.action