据说，现在springmvc火了，好多企业都在使用，既然这样，咱们也得会点，于是乎就开始自学了，通过找资料，终于做出来了一个简单案例，这里分享供大家浏览，主要分为以下几个步骤：
一、springmvc是一个mvc框架,通过mvc很好的将数据、业务、表现进行分离
二、springmvc是围绕DispatcherServlet展开的，由DispatcherServlet负责将请求派发到特定的handler
springmvc框架搭建步骤：
1.创建项目，拷贝springmvc相关的jar包。
2.配置web.xml主要配置前端控制器DispatcherServlet
<servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping>
3.在web-inf下创建springmvc配置文件，[servletname]-servlet.xml,文件名必须是springmvc-servlet.xml
4.配置HandlerMapping映射，根据beanname找到对应的Controller（可以省略）
<bean class="org.springframework.web.servlet.mvc.support.ControllerBeanNameHandlerMapping">
5.创建jsp页面，需要请求发出请求的页面
6.创建Controller,继承AbstractController，重写handleRequestInternal(HttpServletRequest request,
HttpServletResponse response)
//返回数据和页面 @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { String hello = request.getParameter("file"); System.out.println(hello); ModelAndView modelAndView = new ModelAndView("welcome"); //返回到的页面 modelAndView.addObject("helloword",hello); //返回值 return modelAndView; }
7.配置视图解析器
<!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置前缀和后缀 --> <property name="prefix" value="/"></property> <!-- 后缀 --> <property name="suffix" value=".jsp"></property> </bean>
下面我把源码放上来吧；
web.xml里面的配置：
<?xml version="1.0" encoding="UTF-8"?> <web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <display-name></display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>springmvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/pringMVC-servlet.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> </web-app>
Springmvc里面的配置：
<?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" xmlns:p="http://www.springframework.org/schema/p" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd"> <!-- 配置HandlerMapping映射，根据beanname找到对应的Controller --> <bean class="org.springframework.web.servlet.mvc.support.ControllerBeanNameHandlerMapping"></bean> <!-- 配置Controller --> <bean id="hello.do" class="org.controller.HelloController"></bean> <!-- 配置视图解析器 --> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 配置前缀和后缀 --> <property name="prefix" value="/"></property> <!-- 后缀 --> <property name="suffix" value=".jsp"></property> </bean> </beans>
HelloController控制器里面的代码：
/** * @Title: HelloController.java * @Package org.controller * @Description: TODO该方法的主要作用： * @author A18ccms A18ccms_gmail_com * @date 2017-8-30 下午8:38:53 * @version V1.0 */ package org.controller; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController; /** * * 项目名称：springmvc_day1 * 类名称：HelloController * 类描述： 控制器 * 创建人：Mu Xiongxiong * 创建时间：2017-8-30 下午8:38:54 * 修改人：Mu Xiongxiong * 修改时间：2017-8-30 下午8:38:54 * 修改备注： * @version * */ public class HelloController extends AbstractController { @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { String hello = request.getParameter("file"); System.out.println(hello); ModelAndView modelAndView = new ModelAndView("/welcome"); //返回到的页面 modelAndView.addObject("helloword",hello); //返回值 return modelAndView; } }
index.jsp里面的代码：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% 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="<%=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="styles.css"> --> </head> <body> <form action="hello.do" method="post"> hello:<input type="text" name="file"/><br/> <input type="submit" value="提交"/> </form> </body> </html>
welcome.jsp的代码：
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% 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="<%=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="styles.css"> --> </head> <body> hello:${helloword } </body> </html>
最后看一下目录对应关系：
运行看welcome.jsp页面：
运行完毕，遇到的问题：
Springmvc中提交from之后不跳转不进控制器
Could not open ServletContext resource [/WEB-INF/springmvc-servlet.xml]【解决方案】
