HelloSpringMVC
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视图
test.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> ${msg} </body> </html> -
确保项目中有lib依赖
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配置DispatcherServlet
<!--springmvc的核心-前端控制器DispatcherServlet--> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <!-- 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--> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> -
spring配置文件springmvc-servlet.xml
<?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"> <!--处理器映射器--> <bean class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/> <!--处理器适配器--> <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/> <!--视图解析器--> <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--> <bean id="/hello" class="cn.pinked.controller.HelloController"/> </beans> -
控制器
public class HelloController implements Controller { public ModelAndView handleRequest(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse) throws Exception { ModelAndView modelAndView = new ModelAndView(); //业务代码 String result = "hellospringmvc"; modelAndView.addObject("msg", result); //视图跳转 modelAndView.setViewName("test");//拼接视图解析器的前后缀 return modelAndView; } }
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原理流程图
