FreeMarker与Spring MVC 4集合的HelloWorld示例

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FreeMarker与Spring MVC 4集合的HelloWorld示例

2024-10-13 12:28:01 211人阅读

0、整体的项目结构

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1、引入POM

<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/maven-v4_0_0.xsd">    <modelVersion>4.0.0</modelVersion>    <groupId>com.jsoft.testspring</groupId>    <artifactId>testmvchelloworld</artifactId>    <packaging>war</packaging>    <version>0.0.1-SNAPSHOT</version>    <name>testmvchelloworld Maven Webapp</name>    <url>http://maven.apache.org</url>    <dependencies>        <dependency>            <groupId>junit</groupId>            <artifactId>junit</artifactId>            <version>3.8.1</version>            <scope>test</scope>        </dependency>        <!-- Servlet Library -->        <!-- http://mvnrepository.com/artifact/javax.servlet/javax.servlet-api -->        <dependency>            <groupId>javax.servlet</groupId>            <artifactId>javax.servlet-api</artifactId>            <version>3.1.0</version>            <scope>provided</scope>        </dependency>        <!-- Spring Core -->        <!-- http://mvnrepository.com/artifact/org.springframework/spring-core -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-core</artifactId>            <version>4.1.4.RELEASE</version>        </dependency>        <!-- Spring Web -->        <!-- http://mvnrepository.com/artifact/org.springframework/spring-web -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-web</artifactId>            <version>4.1.4.RELEASE</version>        </dependency>        <!-- Spring Web MVC -->        <!-- http://mvnrepository.com/artifact/org.springframework/spring-webmvc -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-webmvc</artifactId>            <version>4.1.4.RELEASE</version>        </dependency>        <!-- spring-context-support -->        <!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->        <dependency>            <groupId>org.springframework</groupId>            <artifactId>spring-context-support</artifactId>            <version>4.1.4.RELEASE</version>        </dependency>                <!-- https://mvnrepository.com/artifact/org.freemarker/freemarker -->        <dependency>            <groupId>org.freemarker</groupId>            <artifactId>freemarker</artifactId>            <version>2.3.26-incubating</version>        </dependency>    </dependencies>    <build>        <finalName>testmvchelloworld</finalName>        <plugins>            <!-- Config: Maven Tomcat Plugin -->            <!-- http://mvnrepository.com/artifact/org.apache.tomcat.maven/tomcat7-maven-plugin -->            <!-- http://tomcat.apache.org/maven-plugin-2.0/tomcat7-maven-plugin/plugin-info.html -->            <plugin>                <groupId>org.apache.tomcat.maven</groupId>                <artifactId>tomcat7-maven-plugin</artifactId>                <version>2.2</version>                <!-- Config: contextPath and Port (Default:8080) -->                <!--                 <configuration>                     <path>/</path>                     <port>8899</port>                 </configuration>                 -->            </plugin>            <!-- Config: Maven Jetty Plugin -->            <!-- http://mvnrepository.com/artifact/org.mortbay.jetty/jetty-maven-plugin -->            <!-- http://www.eclipse.org/jetty/documentation/current/jetty-maven-plugin.html -->            <plugin>                <groupId>org.eclipse.jetty</groupId>                <artifactId>jetty-maven-plugin</artifactId>                <version>9.4.3.v20170317</version>                <!-- Config: contextPath and Port (Default:8080) -->                <!--                             <configuration>                    <httpConnector>                        <port>8899</port>                    </httpConnector>                    <webAppConfig>                        <contextPath>/</contextPath>                    </webAppConfig>                </configuration>                 -->            </plugin>        </plugins>    </build></project>

注意：引入时参考上面不同颜色的引入，尤其是spring-context-support这个JAR包，里面包含了处理FreeMarker的UI组件。

2、配置web.xml

<web-app id="WebApp_ID" version="3.0"         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">       <display-name>Spring MVC Application</display-name>       <servlet>       <servlet-name>spring-mvc</servlet-name>       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>       <!-- 默认：[servlet-name]-servlet.xml -->       <!-- 通过初始化参数，指定xml文件的位置 -->       <init-param>           <param-name>contextConfigLocation</param-name>           <param-value>/WEB-INF/helloworld-context.xml</param-value>       </init-param>       <load-on-startup>1</load-on-startup>   </servlet>          <servlet-mapping>       <servlet-name>spring-mvc</servlet-name>       <url-pattern>/</url-pattern>   </servlet-mapping>    <!-- 添加其它xml配置 -->   <context-param>       <param-name>contextConfigLocation</param-name>       <param-value>/WEB-INF/other-context.xml</param-value>   </context-param>   <listener>       <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>   </listener>    </web-app>

3、配置helloworld-context.xml

<?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:p="http://www.springframework.org/schema/p"     xmlns:context="http://www.springframework.org/schema/context"     xmlns:mvc="http://www.springframework.org/schema/mvc"     xsi:schemaLocation="http://www.springframework.org/schema/beans                         http://www.springframework.org/schema/beans/spring-beans.xsd                         http://www.springframework.org/schema/context                         http://www.springframework.org/schema/context/spring-context.xsd                         http://www.springframework.org/schema/mvc                         http://www.springframework.org/schema/mvc/spring-mvc.xsd">    <context:component-scan base-package="com.jsoft.testspring" />    <context:annotation-config />    <!-- 配置FreeMarker -->    <!--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 -->    <!-- <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix">            <value>/WEB-INF/jsp/</value>        </property>        <property name="suffix">            <value>.jsp</value>        </property>    </bean> -->    <!-- 针对FreeMarker的视图配置 -->    <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">        <property name="cache" value="true" />        <property name="prefix" value="" />        <property name="suffix" value=".ftl" />        <property name="contentType" value="text/html;charset=UTF-8"/>        <property name="requestContextAttribute" value="request" />        <property name="exposeSpringMacroHelpers" value="true" />        <property name="exposeRequestAttributes" value="true" />        <property name="exposeSessionAttributes" value="true" />    </bean>    <bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">        <property name="templateLoaderPath" value="/WEB-INF/view" />        <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>    <!-- 查看解析器也可以使用ResourceBundles或XML文件进行配置。如果您需要基于区域设置的不同视图解析，则必须使用资源束解析器。 -->    <!-- 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">        <property name="mediaTypes">            <map>                <entry key="html" value="http://www.mamicode.com/text/html" />                <entry key="json" value="http://www.mamicode.com/application/json" />            </map>        </property>        <property name="favorParameter" value="http://www.mamicode.com/true" />        <property name="viewResolvers">            <list>                <bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />                <bean id="viewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">                    <property name="cache" value="http://www.mamicode.com/true" />                    <property name="prefix" value="" />                    <property name="suffix" value="http://www.mamicode.com/.ftl" />                    <property name="contentType" value="http://www.mamicode.com/text/html;charset=UTF-8"/>                    <property name="requestContextAttribute" value="http://www.mamicode.com/request" />                    <property name="exposeSpringMacroHelpers" value="http://www.mamicode.com/true" />                    <property name="exposeRequestAttributes" value="http://www.mamicode.com/true" />                    <property name="exposeSessionAttributes" value="http://www.mamicode.com/true" />                </bean>            </list>        </property>        <property name="defaultContentType" value="http://www.mamicode.com/text/html" />    </bean> -->        </beans>

说明：other-context.xml这个文件其实没有什么内容，当然，也可以将上述一些配置引入到这个文件上，效果是一致的。

4、新建模板页面welcom.ftl

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="zh-CN" dir="ltr">  <head>   <title>test!</title>   <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>  </head>  <body>      <div>          直接显示字符串<br />          String:${strValue}<br/>             <hr/>      </div>            <div>      显示日期      date:${myDate?date}<br/>      <hr/>      显示时间      time:${myDate?time}<br/>      <hr/>      显示时间戳      datetime:${myDate?datetime}<br/>      <hr/>       </div>            <div>      访问对象数组      ObjectArray:      ${objectArray[0]},${objectArray[1]},${objectArray[2]}      <br />      <hr/>           </div>            <div>      遍历Set中的元素      SetData:<br />      <#list setData as value>          ${value}      </#list>      <hr/>       </div>            <div>      遍历List中的元素      strList:<br/>      <#list strList as strValue >      <#if strValue_index == 0>          ${strValue} is first element      <#elseif !strValue_has_next>          ${strValue} is last element      <#else>          ${strValue}      </#if>      <br />      </#list>      <hr/>       </div>            <div>      获取map中的值      <br/>      map:      key1=${map.key1},key2=${map.key2},key3=${map.key3}      <hr/>           </div>              </body>     </html>

5、编写HelloController.java

package com.jsoft.testspring.testmvchelloworld;import java.util.ArrayList;import java.util.Date;import java.util.HashMap;import java.util.HashSet;import java.util.List;import java.util.Map;import java.util.Set;import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller;import org.springframework.ui.ModelMap;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import org.springframework.web.servlet.ModelAndView;@Controller@RequestMapping("/hello")public class HelloController {        @RequestMapping(method=RequestMethod.GET)    public String printHello(ModelMap model){        model.addAttribute("message","Hello Spring MVC Framework!");        return "hello";    }        @RequestMapping(value = "/welcome", method = { RequestMethod.GET })    public ModelAndView getFirstPage(HttpServletRequest request) {                String strValue = "http://www.mamicode.com/this is String";        Date myDate = new Date();        Object[] objectArray = new Object[] { 1, "str", 1.2 };        Set<Object> setData = http://www.mamicode.com/new HashSet

首页 > 代码库 > FreeMarker与Spring MVC 4集合的HelloWorld示例

FreeMarker与Spring MVC 4集合的HelloWorld示例

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