Build Spring MVC from scratch

1. Copy the jar file

2. Populate Web. xml

Write the following in/web-inf/web.xml:

<? XML version="1.0"encoding="UTF-8"?>

<Web-appxmlns:xsi= "/HTTP/ Www.w3.org/2001/XMLSchema-instance " xmlns=< Span style= "COLOR: #2a00ff" > "Http://java.sun.com/xml/ns/javaee" xmlns : Web= "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_2_5.xsd " id= "webapp_id" version= "2.5" >

<context-param>

<param-name>contextconfiglocation</param-name>

<param-value></param-value>

</context-param>

<listener>

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

</listener>

<servlet>

<servlet-name>x</servlet-name>

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

<init-param>

<param-name>contextconfiglocation</param-name>

<Param-value>classpath*:x-servlet.xml</param-value>

</init-param>

</servlet>

<servlet-mapping>

<servlet-name>x</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

</Web-app>

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Context-param: Specifies the location of the ApplicationContext (bean definition);

The servlet specifies the Servletdispatcher and the servlet configuration file path, and if it is Web-inf, thecontextconfiglocation node Value is defined in the form "/web-inf/xx-servlet.xml" and, if it is a different folder, is specified in classpath form, which means that the servlet configuration file path is Web-inf The latter means to find the configuration file in the compiled folder;

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3. Filling X-servlet

Create the X-servlet.xml in the Resources folder or the/web-inf/directory and populate the following content:

<? XML version="1.0"encoding="UTF-8"?>

<beansxmlns="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"

???? 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.xsd

Http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd " >

???? <mvc:annotation-driven />

???? <context:component-scanbase-package="Neusoft.monitor.controller"/>

???? <!--jsp View -

???? <beanid="Jspviewresolver"

???????? class="org.springframework.web.servlet.view.InternalResourceViewResolver">

???????? <propertyname="prefix"value="/web-inf/pages/"/ >

???????? <propertyname="suffix"value=". jsp"/>

???? </bean>

</Beans>

Mvc:annotation-driven, the controller is set by means of annotations;

Context:component-scan, representing the package to be scanned for annotations;

<bean id= "Jspviewresolver" > defines how to find a JSP page;

4. Writing a Controller

@Controller

Public class HomeController {

???? @RequestMapping(value = "/home")

???? Public String showhomepage () {

???????? return"Home";

????}

}

Writing home.jsp pages

Write something casually;

5. Try to access

You can see home.jsp content by typing the URL localhost:8080/myspringmvc/home. (Myspringmvc is the name of the project in Eclipse)

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Build Spring MVC from scratch