Springboot+Thymeleaf+layui框架的配置与使用

前言
Springboot默认是不支持JSP的，默认使用thymeleaf模板引擎。所以这里介绍一下Springboot使用Thymeleaf的实例以及遇到的问题。

配置与使用
1.在application.properties文件中增加Thymeleaf模板的配置。
#关闭thymeleaf的缓存，不然在开发过程中修改页面不会立刻生效需要重启，生产可配置为true

#关闭thymeleaf的缓存，不然在开发过程中修改页面不会立刻生效需要重启，生产可配置为true
spring.thymeleaf.cache=false
spring.thymeleaf.prefix=classpath:/web/
spring.thymeleaf.suffix=.html
spring.thymeleaf.mode=HTML5
spring.thymeleaf.encoding=UTF-
spring.thymeleaf.content-type=text/html
spring.resources.chain.strategy.content.enabled=true
spring.resources.chain.strategy.content.paths=/**

说明一下，这些配置不是必须的，如果配置了会覆盖默认的。

2.在pom.xml中添加thymeleaf的依赖

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

3、编写一个测试的Controller

package com.lynch.web;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;@Controller
@RequestMapping("/layui")
public class LayuiController {    @RequestMapping("/index")
    public String demo() {
        return "layui/index";
    }}

可以看到，Controller与普通的SpringMVC的Controller无异。

4、编写index.html
默认情况下：
spring-boot项目静态文件目录：/src/java/resources/static （比如：js、css、img等静态资源）
spring-boot项目模板文件目录：/src/java/resources/templates （所有的页面文件，这个地方我已经通过application.properties 将 templates 改为了web）
所以index.html文件在/src/java/resources/web/layui下。

<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>layout 后台大布局 - Layui</title>
<link th:href="@{/layui/css/layui.css}" rel="external nofollow"  rel="stylesheet" />
</head>
<body class="layui-layout-body">
    <div class="layui-layout layui-layout-admin">
        <div class="layui-header">
            <div class="layui-logo">layui 后台布局</div>
            <!-- 头部区域（可配合layui已有的水平导航） -->
            <ul class="layui-nav layui-layout-left">
                <li class="layui-nav-item"><a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >控制台</a></li>
                <li class="layui-nav-item"><a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >商品管理</a></li>
                <li class="layui-nav-item"><a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >用户</a></li>
                <li class="layui-nav-item"><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >其它系统</a>
                    <dl class="layui-nav-child">
                        <dd>
                            <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >邮件管理</a>
                        </dd>
                        <dd>
                            <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >消息管理</a>
                        </dd>
                        <dd>
                            <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >授权管理</a>
                        </dd>
                    </dl></li>
            </ul>
            <ul class="layui-nav layui-layout-right">
                <li class="layui-nav-item"><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" > aaa 贤心 </a>
                    <dl class="layui-nav-child">
                        <dd>
                            <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >基本资料</a>
                        </dd>
                        <dd>
                            <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >安全设置</a>
                        </dd>
                    </dl></li>
                <li class="layui-nav-item"><a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >退了</a></li>
            </ul>
        </div>        <div class="layui-side layui-bg-black">
            <div class="layui-side-scroll">
                <!-- 左侧导航区域（可配合layui已有的垂直导航） -->
                <ul class="layui-nav layui-nav-tree" lay-filter="test">
                    <li class="layui-nav-item layui-nav-itemed"><a class=""
                        href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >所有商品</a>
                        <dl class="layui-nav-child">
                            <dd>
                                <a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >列表一</a>
                            </dd>
                            <dd>
                                <a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >列表二</a>
                            </dd>
                            <dd>
                                <a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >列表三</a>
                            </dd>
                            <dd>
                                <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >超链接</a>
                            </dd>
                        </dl></li>
                    <li class="layui-nav-item"><a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >解决方案</a>
                        <dl class="layui-nav-child">
                            <dd>
                                <a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >列表一</a>
                            </dd>
                            <dd>
                                <a href="javascript:;" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >列表二</a>
                            </dd>
                            <dd>
                                <a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >超链接</a>
                            </dd>
                        </dl></li>
                    <li class="layui-nav-item"><a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >云市场</a></li>
                    <li class="layui-nav-item"><a href="" rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow"  rel="external nofollow" >发布商品</a></li>
                </ul>
            </div>
        </div>        <div class="layui-body">
            <!-- 内容主体区域 -->
            <div style="padding: 15px;">内容主体区域</div>
        </div>        <div class="layui-footer">
            <!-- 底部固定区域 -->
            © layui.com - 底部固定区域
        </div>
    </div>
    <script th:src="@{/layui/layui.js}"></script>
    <script>
        //JavaScript代码区域
        layui.use('element', function() {
            var element = layui.element;        });
    </script>
</body>
</html>