1.在web.xml中配置DispatcherServlet
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
2. 绑定Spring配置文件
<!--DispatcherServlet要绑定Spring的配置文件-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-servlet.xml</param-value>
</init-param>
<!--启动级别1，服务器一启动就加载他-->
<load-on-startup>1</load-on-startup>
</servlet>
<!--
在SpringMVC中/和/*的区别
/：只匹配所有的请求，不会去匹配jsp页面
/* ； 匹配所有的请求，包括jsp页面
-->
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
3.映射Controller类并返回Controller
<!--处理器映射器-->
<bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
4.适配Controller
<!--处理器适配器-->
<bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/>
6. 拼接
<!--视图解析器：模板引擎 Thymeleaf Freemarker...-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">
<!--前缀-->
<property name="prefix" value="/WEB-INF/jsp/"/>
<!--后缀-->
<property name="suffix" value=".jsp"/>
</bean>
<!--BeanNameUrlHandlerMapping-->
<bean id="/hello" class="com.test.controller.HelloController"/>
</beans>
5.调用Controller并返回ModelAndView
public class HelloController implements Controller {
@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
ModelAndView mv = new ModelAndView();
// 业务代码
String result = "SpringMVC";
mv.addObject("msg",result);
// 视图跳转
mv.setViewName("test");
return mv;
}
}
