一、环境
- Idea 2020.1
- JDK 1.8
- maven
二、目的
spring boot 整合freemarker模板开发web项目。
三、步骤
3.1、点击File -> New Project -> Spring Initializer，点击next
3.2、在对应地方修改自己的项目信息
3.3、选择Web依赖，选中Spring Web。可以选择Spring Boot版本，本次默认为2.2.6，点击Next
3.4、项目结构
四、添加文件
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <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 https://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.2.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>org.ouyushan</groupId> <artifactId>spring-boot-web-freemarker</artifactId> <version>0.0.1-SNAPSHOT</version> <name>spring-boot-web-freemarker</name> <description>Freemarker project for Spring Boot</description> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> <exclusions> <exclusion> <groupId>org.junit.vintage</groupId> <artifactId>junit-vintage-engine</artifactId> </exclusion> </exclusions> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
配置默认application.properties
# 设定ftl文件路径 spring.freemarker.template-loader-path=classpath:/templates spring.freemarker.suffix=.ftl #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=false #spring.freemarker.expose-session-attributes=false #spring.freemarker.request-context-attribute=request
实现WelcomController
package org.ouyushan.springboot.web.freemarker.controller; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import java.util.Date; import java.util.Map; /** * @Description: * @Author: ouyushan * @Email: ouyushan@hotmail.com * @Date: 2020/4/30 11:35 */ @Controller public class WelComeController { @Value("${application.message:Default Value Hello World}") private String message; @GetMapping("/") public String error(Map<String,Object> model){ model.put("index",this.message); return "index"; } @GetMapping("/hi") public String welcome(Model model){ model.addAttribute("time",new Date()); model.addAttribute("message",this.message); return "hello"; } }
添加页面文件
templates/hello.ftl
<!DOCTYPE html> <html lang="en"> <body> Date: ${time ? date} <br> Time: ${time ? time} <br> Message: ${message} </body> </html>
templates/index.ftl
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> this is index ${index} </body> </html>
五、接口测试
访问：
http://localhost:8080/
访问：
http://localhost:8080/hi
六、知识点
必须配置以下内容，否则报 no mapping found for ** 错误
spring.freemarker.template-loader-path=classpath:/templates
spring.freemarker.suffix=.ftl