Quick start to Spring MVC development

This article will teach you how to use the spring framework quickly, and if you have a spring in action on your hands, you'd better start with the third part of Spring's application in the Web layer-building the web layer, otherwise it would be a nightmare!

First, I need to build the basic concept of Spring MVC in your heart. When a spring-based WEB application receives a request for http://localhost:8080/hello.do (in fact, the request path is/hello.do), spring hands the request to a Hellocontroller Process, Hellocontroller calls a JSP file called hello.jsp to generate HTML code to the user's browser display. The name above (/hello.do,hellocontroller,hello.jsp) is a variable that you can change.

In Spring MVC, in the JSP file, try not to have Java code, only the HTML code and the "Iteration (ForEach)" and "Judgment (IF)" two jstl tags. The JSP file is used only as a rendering (or view) template.

All right, let's get started. First we need a web.xml file placed in the Web-inf directory:

web.xml: 1 <?xml version= "1.0" encoding= "UTF-8"?>


2


3 <web-app version= "2.4" xmlns= "HTTP://JAVA.SUN.COM/XML/NS/J2EE"


4 xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"


5 xsi:schemalocation= "Http://java.sun.com/xml/ns/j2ee


6 http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd ">


7


8 <context-param>


9 <param-name>contextConfigLocation</param-name>


<param-value>


11/web-inf/database.xml


12/web-inf/applicationcontext.xml


</param-value>


</context-param>


15


<listener>


<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>


</listener>


19


<filter>


<filter-name>encodingFilter</filter-name>


<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>


<init-param>


<param-name>encoding</param-name>


<param-value>UTF-8</param-value>


</init-param>


</filter>


28


<filter-mapping>


<filter-name>encodingFilter</filter-name>


<url-pattern>*.do</url-pattern>


</filter-mapping>


33


<servlet>


<servlet-name>ideawu</servlet-name>


<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>


Notoginseng <load-on-startup>1</load-on-startup>


</servlet>


39


<servlet-mapping>


<servlet-name>ideawu</servlet-name>


<url-pattern>*.do</url-pattern>


</servlet-mapping>


44


<welcome-file-list>


<welcome-file>index.jsp</welcome-file>


<welcome-file>index.html</welcome-file>


</welcome-file-list>


49


<jsp-config>


Wuyi <taglib>


<taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>


<taglib-location>/WEB-INF/tld/c.tld</taglib-location>


</taglib>


<taglib>


<taglib-uri>http://java.sun.com/jsp/jstl/fmt</taglib-uri>


<taglib-location>/WEB-INF/tld/fmt.tld</taglib-location>


</taglib>


</jsp-config>


60


</web-app>