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DEMO: springboot 与 freemarker 集成

直接在 DEMO: springboot 与 mybatis 集成基础上，进行修改。

1、pom.xml 中引用依赖

<dependency>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-freemarker</artifactId>
          <version>1.4.1.RELEASE</version>
</dependency>

2、src/main/resources/application.properties 中添加 freemarker 配置

关键是模板的位置：spring.freemarker.template-loader-path=classpath:/static/ftl

########################################################
###freemarker
########################################################
spring.freemarker.allow-request-override=false
spring.freemarker.allow-session-override=false
spring.freemarker.cache=true
spring.freemarker.charset=UTF-8
spring.freemarker.check-template-location=true
spring.freemarker.content-type=text/html
spring.freemarker.enabled=true
spring.freemarker.expose-request-attributes=false
spring.freemarker.expose-session-attributes=false
spring.freemarker.expose-spring-macro-helpers=true
spring.freemarker.prefer-file-system-access=true
spring.freemarker.suffix=.ftl
spring.freemarker.template-loader-path=classpath:/static/ftl
spring.freemarker.settings.template_update_delay=0
spring.freemarker.settings.default_encoding=UTF-8
spring.freemarker.settings.classic_compatible=true
spring.freemarker.order=1

3、添加模板文件 src/main/resources/static/ftl/student.ftl

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>

<#list students as student >
 ${student.id} - ${student.name} - ${student.sex} - ${student.no} <br/>
</#list>
</body>
</html>

4、修改 StudentController.java

1、方法返回，void 改成 String，返回模板名字 “student”

2、加个map入参，传数据给前端模板

package demo.springboot.controller;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import demo.springboot.model.Student;
import demo.springboot.service.StudentService;

@Controller
@RequestMapping("/student")
public class StudentController {

    private static final Logger LOGGER =  LoggerFactory.getLogger(StudentController.class);
    
    @Autowired
    private StudentService studentService;
    
    @RequestMapping("/list")
    public String listStudent(Map<String, Object> map){
        List<Student> students = new ArrayList<>();
        students = studentService.listStudents();
        
        for (Student student : students){
            LOGGER.info(student.getId() + " - " + student.getName() + " - " + student.getNo() + " - " + student.getSex());
        }
        
        map.put("students", students);
        
        return "student";
    }
    
}

5、启动应用，浏览器访问 http://localhost:8080/student/list，大功告成

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