Spring-MVC开发步骤(入门配置)

Step1.导包    spring-webmvc
Step2.添加spring配置文件
Step3.配置DispatcherServlet
    在web.xml中:
        <servlet>
            <servlet-name>springmvc</servlet-name>
                <servlet-class>
                    org.springframework.web.servlet.DispatcherServlet
                </servlet-class>
      <!-- DispatcherServlet的初始化方法会启动spring容器,
      contextConfigLocation用来指定spring配置文件的位置 -->
                <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>springmvc</servlet-name>
            <url-pattern>*.do</url-pattern>
        </servlet-mapping>

Step4.写自己的Controller实现spring框架中的Controller,重写handleRequest方法
        /**
         * ModelAndView有两个常用构造器
         * ModelAndView(String viewName)
         * ModelAndView(String viewName, Map data)  viewName:视图名    data:处理结果
         * */

Step5.写自己的jsp

Step6.在spring配置文件中,添加HandlerMapping,ViewResolver配置
    <!-- 配置HandlerMapping -->
    <bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="/hello.do">helloController</prop>
            </props>
        </property>
    </bean>
    <!-- 配置Controller -->
    <bean id="helloController" class="controller.HelloController"/>
    <!-- 配置视图解析器 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/"/>
        <property name="suffix" value=".jsp"/>
    </bean>
来源：https://www.cnblogs.com/chentging/p/7143300.html
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servlet