搭建环境：表述层
2023年11月26日大约 3 分钟约 602 字
1、设定 Web 工程
http://heavy_code_industry.gitee.io/code_heavy_industry/pro002-maven/chapter04/verse04.html
2、web.xml 配置
①配置 ContextLoaderListener
<!-- 第一部分：加载 spring-persist.xml 配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-persist.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>②配置 DispatcherServlet
<!-- 第二部分：加载 spring-mvc.xml 配置文件 -->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>③配置 CharacterEncodingFilter
<!-- 第三部分：设置字符集的 Filter -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceRequestEncoding</param-name>
<param-value>true</param-value>
</init-param>
<init-param>
<param-name>forceResponseEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>④配置 HiddenHttpMethodFilter
<!-- 第四部分：按照 RESTFul 风格负责转换请求方式的 Filter -->
<filter>
<filter-name>hiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>hiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>3、显示首页
①配置 SpringMVC
[1]标配
<!-- 开启 SpringMVC 的注解驱动功能 -->
<mvn:annotation-driven />
<!-- 让 SpringMVC 对没有 @RequestMapping 的请求直接放行 -->
<mvc:default-servlet-handler />[2]配置视图解析相关
<!-- 配置视图解析器 -->
<bean id="thymeleafViewResolver" class="org.thymeleaf.spring5.view.ThymeleafViewResolver">
<property name="order" value="1"/>
<property name="characterEncoding" value="UTF-8"/>
<property name="templateEngine">
<bean class="org.thymeleaf.spring5.SpringTemplateEngine">
<property name="templateResolver">
<bean class="org.thymeleaf.spring5.templateresolver.SpringResourceTemplateResolver">
<property name="prefix" value="/WEB-INF/templates/"/>
<property name="suffix" value=".html"/>
<property name="characterEncoding" value="UTF-8"/>
<property name="templateMode" value="HTML5"/>
</bean>
</property>
</bean>
</property>
</bean>注意：需要我们自己手动创建 templates 目录。 
[3]配置自动扫描的包
<!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.atguigu.imperial.court.controller"/>②配置 view-controller 访问首页
<!-- 配置 view-controller -->
<mvc:view-controller path="/" view-name="index" />③创建首页模板文件
<!DOCTYPE html>
<html lang="en" xml:th="http://www.thymeleaf.org">
<head>
<meta charset="UTF-8">
<title>首页</title>
</head>
<body>
<!-- @{/auth} 解析后：/demo/auth -->
<form th:action="@{/auth/login}" method="post">
<!-- th:text 解析表达式后会替换标签体 -->
<!-- ${attrName} 从请求域获取属性名为 attrName 的属性值 -->
<p style="color: red;font-weight: bold;" th:text="${message}"></p>
<p style="color: red;font-weight: bold;" th:text="${systemMessage}"></p>
账号：<input type="text" name="loginAccount"/><br/>
密码：<input type="password" name="loginPassword"><br/>
<button type="submit">进宫</button>
</form>
</body>
</html>