開發springMVC步驟

1.匯入jar包

2.配置web.xml檔案

<!--    前端控制器 -->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet
 
>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

可以新增springMVC自帶的編碼過濾

<!-- springMVC框架自帶字元編碼過濾器 -->
    <filter>
        <filter-name>myencoding</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
 
>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>myencoding</filter-name>
        <url-pattern>*.action</url-pattern>
    </filter-mapping>

3.配置despatcher-servlet.xml檔案，新增檢視解析器

<!-- 配置檢視解析器 -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <!-- 字首 -->
        <property name="prefix" value="/" />
        <!-- 字尾 -->
        <property name="suffix" value=".jsp" />
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>

    </bean>

配置要掃描的包

<!-- 採用檔案掃描方式配置控制器    配置要掃描的包-->
    <context:component-scan base-package="com.sunsharing.mvctest.controller">
    </context:component-scan>

4.編寫controller

遇到錯誤：nested exception is java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config 解決辦法：把jstl.jar和standard.jar放到WEB-INF下的lib中（在WEB-INF下建一個lib資料夾）