本片文章的项目Demo
- 链接地址:
步骤介绍
- 创建UserController
package com.dl.code.controller; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView; /** * Created with IntelliJ IDEA. * 作者: 代蒙恩 * 日期: 2021/2/26 * 时间: 11:23 * 描述: spring事物学习 * 内容: */ @Controller @RequestMapping("userController") public class UserController { @RequestMapping("login") public ModelAndView login(){ System.out.println("查询数据库中....."); //创建一个ModelAndView对象 ModelAndView modelAndView = new ModelAndView(); //存放查询的数据 这里是模拟 modelAndView.addObject("username","代先生"); //设置跳转的页面 modelAndView.setViewName("index.jsp"); //返回ModelAndView对象 return modelAndView; } }
- spring-mvc.xml文件配置
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd "> <!-- 配置扫描的包路径 --> <context:component-scan base-package="com.dl.code"></context:component-scan> <!-- 配置处理起映射器和处理起解析器 --> <mvc:annotation-driven></mvc:annotation-driven> <!-- 配置视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置前缀信息,这是用来进行页面跳转的时候使用的 例如设置的跳转页面为:modelAndView.setViewName("index.jsp"); 则实际的跳转路径为:/WEB-INF/jsp/index.jsp --> <property name="prefix" value="/WEB-INF/jsp/"></property> </bean> </beans>
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web.xml文件配置
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <display-name>Archetype Created Web Application</display-name> <!-- springmvc: 配置前端控制器 --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
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jsp测试文件
<%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <body> <h2>亲,请点击去登录!</h2> <a href="login.jsp">去登录页面</a> </body> </html>
<%-- Created by IntelliJ IDEA. 作者: 代蒙恩 日期: 2021/2/26 时间: 11:28 描述: springmvc学习 --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>Title</title> </head> <body> <a href="userController/login">登录</a> </body> </html>
<%-- Created by IntelliJ IDEA. 作者: 代蒙恩 日期: 2021/2/26 时间: 11:14 描述: springmvc学习 --%> <%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %> <html> <head> <title>Title</title> </head> <body> 用户:${username} </body> </html>