springboot thymeleaf模板and Freemarker模板

最新推荐文章于 2021-08-13 10:19:52 发布

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最新推荐文章于 2021-08-13 10:19:52 发布

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本文链接：https://blog.youkuaiyun.com/weixin_45176922/article/details/103249037

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1、thymeleaf模板

关于Thymeleaf的优点，我只说一条：它就是html页面。
相关pom依赖

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

Spring Boot官方文档建议在开发时将缓存关闭，那就在application.properties文件中加入下面这行

spring.thymeleaf.cache=false

在这里插入图片描述
后台测试代码
实体类:
User

package com.qukang.springboot.entity;

import lombok.Data;

/**
 * @author 屈康
 * @site www.qk.com
 * @company 不讲理公司
 * @create  2019-11-26 1:53
 */
@Data
public class User {
    private Integer uid;
    private  String uname;
    private  String pwd;

    public User() {
    }

    public User(Integer uid, String uname, String pwd) {
        this.uid = uid;
        this.uname = uname;
        this.pwd = pwd;
    }
}

Controller

package com.qukang.springboot.controller;

import com.qukang.springboot.entity.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import javax.servlet.http.HttpServletRequest;
import java.util.ArrayList;
import java.util.List;

/**
 * @author 屈康
 * @site www.qk.com
 * @company 不讲理公司
 * @create  2019-11-26 1:53
 */
@Controller
@RequestMapping("/thymeleaf")
public class UserController {
    @RequestMapping("/list")
    public String hello(HttpServletRequest request){
        /**
         * 1.获取单个值
         * 2.能够在html页面进行遍历展示
         * 3.如何在html页面转义html代码块
         */
       request.setAttribute("msg","传输单个字符串！！！");
        List<User> userList=new ArrayList<>();
        userList.add(new User(1,"zs","123"));
        userList.add(new User(2,"ls","234"));
        userList.add(new User(3,"ww","456"));
        request.setAttribute("userList",userList);
        request.setAttribute("htmlStr","<span style='color:red'>转义html代码块</span>");
        return  "list";
    }
}

前端html页面加入<html xmlns:th="http://www.thymeleaf.org">
list.html

<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>thymeleaf模板知识点介绍</title>
</head>
<body>
<div th:replace="common::h1"></div>
<div th:text="${msg}"></div>
<table width="60%" border="1">
    <tr>
        <td>id</td>
        <td>用户名</td>
        <td>密码</td>
    </tr>
    <tr th:each="u:${userList}">
        <td th:text="${u.uid}"></td>
        <td th:text="${u.uname}"></td>
        <td th:text="${u.pwd}"></td>
    </tr>
</table>
<div th:utext="${htmlStr}"></div>

<!--<div th:include="common.html"></div>-->
<div th:replace="common::h2"></div>
</body>
</html>

效果图
在这里插入图片描述
页面嵌套
common.html
效果图

<div th:fragment="h1">包含公共模块一</div>
<div th:fragment="h2">包含公共模块二</div>
<div th:fragment="h3">包含公共模块三</div>

2、Freemarker模板

学习网站：http://freemarker.foofun.cn/
导入pom依赖

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

<!--可以不加，但是做项目的时候可能会用-->
 <resources>
            <!--解决mybatis-generator-maven-plugin运行时没有将XxxMapper.xml文件放入target文件夹的问题-->
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.xml</include>
                </includes>
            </resource>
            <!--freemarker模板也读取需要注释标红地方-->
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <!--<include>*.properties</include>-->
                    <!--<include>*.xml</include>-->
                    <!--<include>*.yml</include>-->
                </includes>
            </resource>
        </resources>

application.yml文件的默认配置


spring:
  thymeleaf:
    cache: false
  freemarker:
    # 设置模板后缀名
    suffix: .ftl
    # 设置文档类型
    content-type: text/html
    # 设置页面编码格式
    charset: UTF-8
    # 设置页面缓存
    cache: false
    # 设置ftl文件路径，默认是/templates，为演示效果添加role
      template-loader-path: classpath:/templates/freemarker
    mvc:
      static-path-pattern: /static/**

list.ftl

<h2>取值</h2>
<h3>提供默认值</h3>
welcome 【${name!'未知'}】 to freemarker!

<h3>exists用在逻辑判断</h3>
<#if name?exists>
    ${name}
</#if>

<h2>条件</h2>
<#if sex=='girl'>
		女
<#elseif sex=='boy'>
		男
<#else>
		保密
</#if>

<h2>循环</h2>
<table border="1px" width="600px">
    <thead>
    <tr>
        <td>ID</td>
        <td>角色名</td>
        <td>描述</td>
    </tr>
    </thead>
    <tbody>
    <#list roles as role>
    <tr>
        <td>${role.rid}</td>
        <td>${role.roleName}</td>
        <td>${role.desc}</td>
    </tr>
    </#list>
    </tbody>
</table>

<h2>include</h2>
<#include 'foot.ftl'>

<h2>局部变量(assign)/全局变量(global)</h2>
 <#assign ctx1>
     ${springMacroRequestContext.contextPath}
 </#assign>

<#global ctx2>
    ${springMacroRequestContext.contextPath}
</#global>

${ctx1}和${ctx2}

实体类

package com.qukang.springboot.entity;

import lombok.Data;

/**
 * @author 屈康
 * @site www.qk.com
 * @company 不讲理公司
 * @create  2019-11-26 1:53
 */
@Data
public class Role {
    private  Integer rid;
    private  String roleName;
    private  String desc;

    public Role() {
    }

    public Role(Integer rid, String roleName, String desc) {
        this.rid = rid;
        this.roleName = roleName;
        this.desc = desc;
    }
}