项目结构
.
├── README.md
├── pom.xml
└── src
├── main
│ ├── java
│ │ └── com
│ │ └── example
│ │ ├── Application.java
│ │ └── controller
│ │ └── FreemarkerController.java
│ └── resources
│ ├── application.properties
│ ├── static
│ │ └── main.js
│ └── templates
│ └── index.html
└── test
└── java
└── com
└── example
└── ApplicationTests.java
依赖 pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-freemarker</artifactId>
</dependency>配置 application.properties
# 关闭缓存
spring.freemarker.cache=false
spring.freemarker.suffix=.ftl
spring.freemarker.template-loader-path=classpath:/templates
spring.freemarker.content-type=text/html; charset=utf-8
# 静态文件
spring.mvc.static-path-pattern=/static/**控制器 FreemarkerController.java
package com.example.controller;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@Controller
public class FreemarkerController {
@GetMapping("/")
public String index(Model model) {
List<Object> list = new ArrayList<>();
list.add(new HashMap<String, Object>() {{
put("name", "Tom");
put("age", 23);
}});
list.add(new HashMap<String, Object>() {{
put("name", "Jack");
put("age", 24);
}});
model.addAttribute("list", list);
model.addAttribute("name", "Tom");
return "index";
}
}模板文件 templates/index.ftl
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Demo</title>
<script src="/static/main.js"></script>
</head>
<body>
<#-- 注释 取出变量 -->
Hello ${name}
<#-- if判断-->
<#if name == "Tom">
<span>is Tom</span>
<#elseif name == "Jack">
<span>is Jack</span>
<#else>
<span>not is Tom</span>
</#if>
<#--for循环-->
<#list list as item>
<p>${item.name} ${item.age}</p>
</#list>
<#-- 引入模板 -->
<#include "./footer.html">
</body>
</html>