spring boot整合freemark

本文主要是介绍spring boot整合freemark，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

用过freemark的童孩都知道,freemark与spring的整合,需要在spring配置文件中配置freemrak的解析,原配置内容如下图:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"default-autowire="byName" default-lazy-init="false"><!-- 设置freeMarker的配置文件路径 --><bean id="freemarkerConfiguration"class="org.springframework.beans.factory.config.PropertiesFactoryBean"><property name="location" value="classpath:freemarker.properties" /></bean><!-- 配置freeMarker的模板路径 --><bean id="freemarkerConfig"class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer"><!-- 指定FreeMarker模板文件目录 --><property name="freemarkerSettings" ref="freemarkerConfiguration" /><property name="defaultEncoding" value="utf-8" /><property name="templateLoaderPath" value="/WEB-INF/ftl/" /><property name="freemarkerVariables"><map><entry key="xml_escape" value-ref="fmXmlEscape"/><entry key="html_escape" value-ref="fmHtmlEscape"/><entry key="header_data" value-ref="headerHtmlEscape" /></map></property></bean><bean id="headerHtmlEscape" class="com.xyy.shop.freemarker.HeaderFreemarkerTemplate" /><bean id="fmXmlEscape" class="freemarker.template.utility.XmlEscape"/><bean id="fmHtmlEscape" class="freemarker.template.utility.HtmlEscape"/> <!-- 配置freeMarker视图解析器 --><bean id="viewResolver"class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver"><property name="viewNames" value="*"/><property name="prefix" value=""/><property name="suffix" value=""/><property name="cache" value="true" /><property name="contentType" value="text/html; charset=utf-8"/><property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/><property name="requestContextAttribute" value="request"></property></bean></beans>

而在与spring boot的整合上,就显得要整洁很多了,不过默认的配置有没有之前的那么详细或可靠,这个就不从得知,还需要渗析,不废话了,回归话题

既然用到freemark肯定需要用到页面的,spring boot默认的页面文件夹为templates,此处我们就自定义了views,项目结构如下图所示:

依然pom.xml加入freemark与spring boot相关的依赖

<dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-freemarker</artifactId></dependency>

src/main/resources/application.properties添加如下配置

#Freemarker配置
spring.freemarker.template-loader-path=classpath:/views/
spring.freemarker.cache=false
spring.freemarker.charset=UTF-8
spring.freemarker.check-template-location=true
spring.freemarker.content-type=text/html
spring.freemarker.expose-request-attributes=true
spring.freemarker.expose-session-attributes=true
spring.freemarker.request-context-attribute=request
spring.freemarker.suffix=.ftl

这是我这块的配置，如果需要更多的 FreeMarker 配置，可以查看下面的详解

spring.freemarker.allow-request-override=false # Set whether HttpServletRequest attributes are allowed to override (hide) controller generated model attributes of the same name.
spring.freemarker.allow-session-override=false # Set whether HttpSession attributes are allowed to override (hide) controller generated model attributes of the same name.
spring.freemarker.cache=false # Enable template caching.
spring.freemarker.charset=UTF-8 # Template encoding.
spring.freemarker.check-template-location=true # Check that the templates location exists.
spring.freemarker.content-type=text/html # Content-Type value.
spring.freemarker.enabled=true # Enable MVC view resolution for this technology.
spring.freemarker.expose-request-attributes=false # Set whether all request attributes should be added to the model prior to merging with the template.
spring.freemarker.expose-session-attributes=false # Set whether all HttpSession attributes should be added to the model prior to merging with the template.
spring.freemarker.expose-spring-macro-helpers=true # Set whether to expose a RequestContext for use by Spring's macro library, under the name "springMacroRequestContext".
spring.freemarker.prefer-file-system-access=true # Prefer file system access for template loading. File system access enables hot detection of template changes.
spring.freemarker.prefix= # Prefix that gets prepended to view names when building a URL.
spring.freemarker.request-context-attribute= # Name of the RequestContext attribute for all views.
spring.freemarker.settings.*= # Well-known FreeMarker keys which will be passed to FreeMarker's Configuration.
spring.freemarker.suffix= # Suffix that gets appended to view names when building a URL.
spring.freemarker.template-loader-path=classpath:/templates/ # Comma-separated list of template paths.
spring.freemarker.view-names= # White list of view names that can be resolved.

其它相关的代码没任何变化.主要表现在controller需要返回一个页面,详细如下:

package com.xyy.controller;import java.util.HashMap;
import java.util.Map;import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;import com.xyy.model.Favorite;
import com.xyy.service.FavoriteService;/*** Favorite控制层* @ClassName: FavoriteController * @author wujing* @date 2017-07-13 15:09:50*/
@RestController
@RequestMapping("/favorite")
public class FavoriteController{private static final Logger LOGGER = LoggerFactory.getLogger(FavoriteController.class);@Autowiredprivate FavoriteService favoriteService;/*** Favorite编辑* @Title: update* @param favorite 修改对象* @return Object* @author wujing * @date 2017-07-13 15:09:50*///@RequestMapping("/detail2/{id}")public Object detail2(@PathVariable Long id,ModelMap modelMap) {Map<String,Object> resultMap = new HashMap<String,Object>();try {Favorite tempFavorite = favoriteService.selectByPrimaryKey(id);resultMap.put("status", "success");resultMap.put("data", tempFavorite);} catch (Exception e) {resultMap.put("status", "error");resultMap.put("errorMsg", "系统异常");LOGGER.error("Favorite添加异常", e);}return resultMap;}@RequestMapping("/detail/{id}")public Object detail(@PathVariable Long id,ModelMap modelMap) {try {Favorite tempFavorite = favoriteService.selectByPrimaryKey(id);modelMap.put("tempFavorite", tempFavorite);} catch (Exception e) {LOGGER.error("Favorite查询异常", e);}return new ModelAndView("favorite/detail");}
}

detail.ftl文件内容:

<div>
<#if tempFavorite??>
${tempFavorite.id }<br/>
${tempFavorite.productId }<br/>
${tempFavorite.merchantId }<br/>
${tempFavorite.status }<br/>
${tempFavorite.creator }<br/>
${tempFavorite.createTime?string('yyyy-MM-dd HH:mm:ss') }
</#if>
</div>

右键运行main主入口,浏览器访问,如下图所示: