freemark介绍

主要文件结构

在这里插入图片描述

引入依赖

<!-- 引入 freemarker 模板依赖 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-freemarker</artifactId>
		</dependency>

添加配置信息

#设定ftl文件路径
spring.freemarker.template-loader-path=classpath:/templates
# 关闭缓存, 即时刷新, 上线生产环境需要改为true
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

编写Controller

package com.example.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;

import com.example.pojo.Resource;

@Controller
@RequestMapping("ftl")
public class FreemarkerController {

	@Autowired
	private Resource resource;

	@RequestMapping("/index")
	public String index(ModelMap map) {
		map.addAttribute("resource", resource);//在模板中添加要展示的数据
		return "freemarker/index"; //返回的是文件路径
	}

	@RequestMapping("center")
	public String center() {
		return "freemarker/center/center";
	}

}

package com.example.pojo;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;

@Configuration
@ConfigurationProperties(prefix = "com.demo.opensource")
@PropertySource(value = "classpath:resource.properties")
public class Resource {
	private String name;
	private String website;
	private String language;

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getWebsite() {
		return website;
	}

	public void setWebsite(String website) {
		this.website = website;
	}

	public String getLanguage() {
		return language;
	}

	public void setLanguage(String language) {
		this.language = language;
	}

	@Override
	public String toString() {
		return "Resource [name=" + name + ", website=" + website + ", language=" + language + "]";
	}
}

com.demo.opensource.name=demo
com.demo.opensource.website=www.demo.com
com.demo.opensource.language=java

前端模板文件

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8" />
    <title></title>
</head>
<body>
FreeMarker模板引擎
<h1>center page</h1>
</body>
</html>

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8" />
    <title></title>
</head>
<body>
FreeMarker模板引擎
<h1>${resource.name}</h1>
<h1>${resource.website}</h1>
<h1>${resource.language}</h1>
</body>
</html>