SpringMVC环境搭建

1.导入jar包的坐标
2.准备spring-mvc.xml文件
3.在web.xml文件中配置前端总控制器,和加载springMVC的配置文件

<!-- 3.1 配置前端总控制器 -->
    <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>
      <!-- 项目启动时创建前端总控制器 -->
      <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
      <servlet-name>DispatcherServlet</servlet-name>
      <url-pattern>/</url-pattern>
    </servlet-mapping>

 <!--3.2 配置过滤器 -->
    <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>
    </filter>
    <filter-mapping>
      <filter-name>CharacterEncodingFilter</filter-name>
      <url-pattern>/*</url-pattern>
    </filter-mapping>

4.配置spring-mvc.xml文件

<!-- 配置需要扫描的包 -->
    <context:component-scan base-package="com.juanxincai.controller"></context:component-scan>
    <!-- 配置注解驱动: 将适配器需要的具体实现类加载进来 -->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!-- 公布静态资源: 静态资源不需要SpringMVC处理 -->
    <mvc:default-servlet-handler></mvc:default-servlet-handler>
    <!-- 配置视图解析器 -->