Spring Boot 集成FreeMarker

青旅半醒 2022-05-29 04:58 232阅读 0赞

创建一个Spring Boot项目

添加FreeMarker依赖

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

再修改配置文件

## Freemarker 配置
    ## 文件配置路径spring:
    spring:
      freemarker:
        cache: false
        content-type: text/html
        charset: UTF-8
        check-template-location: true
        template-loader-path: classpath:/templates/web/ ##模板位置
        expose-request-attributes: true
        expose-session-attributes: true
        request-context-attribute: request
        suffix: .ftl ##后缀
    ##自定义属性
    person:
        name: haha
        age: 22
    
    server:
      port: 8099
      tomcat:
        uri-encoding: UTF-8

关于Spring Boot提供的FreeMarker的配置

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.

创建一个实体类PersonProperties来读取person自定义属性输出到FreeMarker模板(上一文章说过就不再赘述了)。

创建Controller类

package com.wya.controller;
    
    import com.wya.bean.PersonProperties;
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.servlet.ModelAndView;
    
    import javax.annotation.Resource;
    
    /**
     * Created by Administrator on 2018/3/17.
     */
    @Controller
    public class FreemarkerController {
        @Resource
        private PersonProperties personProperties;
    
        @GetMapping("/person")
        public String hello(Model model){
            model.addAttribute("person",personProperties);
            return  "person";
        }
    }

注意没有用RestController注解而是Controller注解，因为这里不是Restful风格的api来返回json对象而是返回到FreeMarker模板。

然后在templates目录下创建web目录，在web目录下创建person.ftl文件

<!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
    </head>
    <body>
        姓名:${person.name}</br>
        年龄:${person.age}
    </body>
    </html>

启动项目请求http://localhost:8099/person

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