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springMVC实现示例

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1、导入相应Jar包 2、在web.xml中配置Servlet <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xmlns="https://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="https://xmlns.jcp.org/xml/ns/javaee https://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <!-- 核心控制器的配置DispatchServlet --> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc-servlet.xml</param-value> </init-param> <!-- 标记容器是否在web应用启动时就加载这个servlet(实例化并调用其init()方法),必须是一个整数,表示servlet被加载的先后顺序, 如果没有设置或为负数,则容器会当Servlet被请求时再加载,如果值为正整数或者为0时,表示在应用启动时就加在并初始化这Servlet,值越小, Servlet的优先级越高,越先被加载,值相同时,容器根据自己选择顺序加载 --> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <!--这里的servlet-name对应上面的servlet中的servlet-name,要相同 --> <servlet-name>springmvc</servlet-name> <!-- /代表springmvc将会拦截处理项目中所有url请求 --> <url-pattern>/</url-pattern> </servlet-mapping> </web-app> 3、创建springmvc-servlet.xml <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="https://www.springframework.org/schema/beans" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance" xmlns:p="https://www.springframework.org/schema/p" xmlns:mvc="https://www.springframework.org/schema/mvc" xmlns:context="https://www.springframework.org/schema/context" xsi:schemaLocation="https://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd https://www.springframework.org/schema/beans https://www.springframework.org/schema/beans/spring-beans-3.1.xsd https://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context-3.2.xsd"> <!-- 配置处理器映射HandlerMapping --> <bean name="/index.html" class="cn.smbms.controller.IndexController"></bean> <!-- 视图解析器/WEB-INF/jsp/index.jsp --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 给返回的值加上前缀和后缀,将返回的值变成/WEB-IN/jsp/**.jsp --> <property name="prefix" value="/WEB-INF/jsp/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans> 4、配置Controller package cn.smbms.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController; public class IndexController extends AbstractController { @Override protected ModelAndView handleRequestInternal(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception { // TODO Auto-generated method stub System.out.println("hahaha"); //这里返回的值,视图解析器会给它加上前缀和后缀,变成网址:https://localhost:8080/SMBMS_MVC/index.jsp return new ModelAndView("index"); } } 5、创建View <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="/go.html?url=<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="/go.html?url=styles.css"> --> </head> <body> jsp,jsp </body> </html> 1、导入相应Jar包 2、在web.xml中配置Servlet <?xml version=



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