freemaker与spring的整合（三）

最新推荐文章于 2024-02-02 16:36:54 发布

原创最新推荐文章于 2024-02-02 16:36:54 发布 · 1.3k 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#freemaker #spring

java框架专栏收录该内容

15 篇文章

订阅专栏

本文介绍了一个基于Spring MVC框架的项目如何集成FreeMarker模板引擎，包括web.xml配置、fre-servlet.xml设置、控制器编写及视图展示等内容。

项目是基于之前学习的maven来构建的，包的引入都在pom文件当中

项目的文件结构如图：

1.web.xml文件的编写

<?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/web-app_2_5.xsd"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="WebApp_ID" version="2.5">

	<listener>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath*:beans.xml</param-value>
	</context-param>
	
	<filter>
		<filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>


	<servlet>
		<servlet-name>fre</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  		<load-on-startup>1</load-on-startup>
	</servlet>

	<servlet-mapping>
		<servlet-name>fre</servlet-name>
		<url-pattern>/</url-pattern>
	</servlet-mapping>
	
</web-app>

2.编写fre-servlet.xml文件

引入freemaker的支持，并且需要将freemaker的controller放在jsp的controller之前

<?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:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc"
	xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
		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">

	<mvc:annotation-driven />
	<context:component-scan base-package="org.konghao.fre.controller"></context:component-scan>

	<mvc:resources location="/resources/" mapping="/resources/**" />
	
	<bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
 		 <property name="templateLoaderPath" value="/WEB-INF/ftl/"/>
	</bean>
	<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>
	</bean>
	
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="viewClass"
			value="org.springframework.web.servlet.view.JstlView" />
		<property name="prefix" value="/WEB-INF/jsp/"></property>
		<property name="suffix" value=".jsp"></property>
	</bean>
	
	<bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
		<property name="mediaTypes">
			<map>
				<entry key="json"  value="application/json" />
				<entry key="xml" value="text/xml" />
				<entry key="htm" value="text/html" />
			</map>
		</property>
		<property name="defaultContentType" value="text/html" />
	</bean>
</beans>

3.HelloController的编写

package org.konghao.fre.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class HelloController {

	@RequestMapping("/hello")
	public String hello(Model model) {
		model.addAttribute("username", "张三");
		return "hello/hello";
	}
	
	@RequestMapping("/helloworld")
	public String helloworld(Model model) {
		model.addAttribute("username","张是");
		return "world";
	}
}

4.编写freemaker的模板文件

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1>${username}</h1>
</body>
</html>

5.编写不会jsp文件

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
${username }
</body>
</html>

6.启动jetty测试，或者是tomcat测试

访问hello和helloworld看看是否可以正常显示