idea 2021版下創建springMvc項目過程

1. 新建普通Java空項目
   
2. 創建完成后右擊項目 Add FrameWork Support...
   
3. 勾選Web Application 和springMvc 再點擊完成，回到主界面就可以看到web目錄了
   
4. 修改 默認的 web.xml

       <display-name>springMVC</display-name>
   <!-- 部署 DispatcherServlet -->
       <servlet>
           <servlet-name>springmvc</servlet-name>
           <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <!-- 表示容器再啟動時立即加載servlet -->
           <load-on-startup>1</load-on-startup>
       </servlet>
       <servlet-mapping>
           <servlet-name>springmvc</servlet-name>
           <!-- 處理所有URL -->
           <url-pattern>/</url-pattern>
       </servlet-mapping>
   

5. 在src下創建Controller類

      package controller;
   
      import javax.servlet.http.HttpServletRequest;
      import javax.servlet.http.HttpServletResponse;
   
      import org.springframework.web.servlet.ModelAndView;
      import org.springframework.web.servlet.mvc.Controller;
   
      public class LoginController implements Controller {
           public ModelAndView handleRequest(HttpServletRequest arg0,
               HttpServletResponse arg1) throws Exception {
               return new ModelAndView("/WEB-INF/jsp/register.jsp");
            }
       }
   

6. 創建並修改springmvc-servlet.xml配置controller映射信息

       <!-- LoginController控制器類，映射到"/login" -->   
       <bean name="/login" class="controller.LoginController"/>   
       <!-- LoginController控制器類，映射到"/register" -->
       <bean name="/register" class="controller.RegisterController"/>
   

7. 配置tomcat運行項目

摘自C語言中文網