一:内容
springmvc,它属于spring基本框架里面的一个组成部分,在实际开发过程中,接收浏览器请求响应,对数据进行数据处理,然后返回页面进行显示。
二:入门示例:
1.创建web工程,并导入相应的jar包
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2.新建springmvc全局配置文件
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<?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:mvc= "http://www.springframework.org/schema/mvc" xmlns:context= "http://www.springframework.org/schema/context" xmlns:aop= "http://www.springframework.org/schema/aop" xmlns:tx= "http://www.springframework.org/schema/tx" xsi:schemalocation="http: //www.springframework.org/schema/beans http: //www.springframework.org/schema/beans/spring-beans-4.2.xsd http: //www.springframework.org/schema/mvc http: //www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http: //www.springframework.org/schema/context http: //www.springframework.org/schema/context/spring-context.xsd http: //www.springframework.org/schema/aop http: //www.springframework.org/schema/aop/spring-aop-4.2.xsd http: //www.springframework.org/schema/tx http: //www.springframework.org/schema/tx/spring-tx.xsd"> </beans> |
3.在web。xml文件中配置前端过滤器
<?xml version= "1.0" encoding= "utf-8" ?> <web-app xmlns:xsi= "http://www.w3.org/2001/xmlschema-instance" xmlns= "http://java.sun.com/xml/ns/javaee" xsi:schemalocation="http: //java.sun.com/xml/ns/javaee http: //java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="webapp_id" version="3.0"> <display-name>springmvc_01</display-name> <!-- 配置前端控制器dispatcherservlet --> <servlet> <servlet-name>springmvc</servlet-name> <servlet- class >org.springframework.web.servlet.dispatcherservlet</servlet- class > <init-param> <param-name>contextconfiglocation</param-name> <!-- 对应上一步创建全局配置文件的文件名以及目录 --> <param-value>classpath:springmvc.xml</param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>springmvc</servlet-name> <url-pattern>*. do </url-pattern> </servlet-mapping> </web-app> |
4.编写处理器handler
package cn.gzsxt.controller; import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import org.springframework.web.servlet.modelandview; import org.springframework.web.servlet.mvc.controller; public class hellocontroller implements controller{ @override public modelandview handlerequest(httpservletrequest request, httpservletresponse response) throws exception { modelandview modelview = new modelandview(); //类似于 request.setattribute() modelview.addobject( "name" , "张三" ); modelview.setviewname( "/web-inf/view/index.jsp" ); return modelview; } } |
5.配置handler,处理器映射器,配置处理器适配器,试图解析器
<!-- 配置handler --> <bean name= "/hello.do" class = "com.ys.controller.hellocontroller" /> <!-- 配置处理器映射器 将bean的name作为url进行查找,需要在配置handler时指定bean name(就是url)--> <bean class = "org.springframework.web.servlet.handler.beannameurlhandlermapping" /> <!-- 配置处理器适配器,所有适配器都得实现 handleradapter接口 --> <bean class = "org.springframework.web.servlet.mvc.simplecontrollerhandleradapter" /> <!-- 配置视图解析器 进行jsp解析,默认使用jstl标签,classpath下得有jstl的包--> <bean class = "org.springframework.web.servlet.view.internalresourceviewresolver" /> |
6.在web-inf/view目录下创建index.jsp文件
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<%@ page language= "java" contenttype= "text/html; charset=utf-8"
pageencoding= "utf-8" %> <!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd" > <html> <head> <meta http-equiv= "content-type" content= "text/html; charset=utf-8" > <title>insert title here</title> </head> <body> hello:${name} </body> </html> |
7.浏览器输出:
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