Spring 3.0 MVC框架入门与灵活配置详解

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"Spring学习笔记深入探讨了Spring 3.0 MVC框架在Java Web开发中的核心地位和优势。Spring MVC是Spring框架的Web组件，它专注于构建健壮的Web应用程序，强调高度可配置性，使得开发者可以轻松地与其他流行框架如Struts、WebWork、JavaServerFaces和Tapestry集成。这种灵活性使得Spring能够根据项目需求选择合适的Web技术，例如与Velocity、Freemarker、Excel或PDF等视图技术无缝对接。 Spring MVC的核心设计理念在于将控制器（Controller）、模型（Model）和视图（View）分离，使得开发人员可以自由地选择对象作为命令或表单绑定对象，无需局限于特定框架接口或基类。Spring的数据绑定功能非常灵活，当遇到类型不匹配时，它会将其视为可由应用进行验证的错误，而不是系统级的错误，这避免了业务对象属性在表单对象中不必要的重复和类型转换。在Spring Web MVC中，通过这种方式，开发者可以更好地处理用户提交的数据，提高了代码的复用性和可维护性。这种架构使得Spring MVC成为现代Web开发的首选，不仅提升了开发效率，还降低了耦合度，有助于构建模块化且易于扩展的应用程序。对于Java开发者来说，学习和掌握Spring MVC不仅有助于提升Web开发技能，还能更好地理解和实践面向服务（Service-Oriented Architecture, SOA）的设计原则。"

()#S=!*M8E$=:=:S!

PQ":=!*M8

E$=:=:

#":PQP1!'

./RQ#E:

:1



The View : Create JSP

#()E()=!*M8

E$=: hello.jsp !*M8E$=:

File: WEB-INF/jsp/hello.jsp

#()+ ${message}. Note that the name “message” is

the one which we have set in ModelAndView object with the message string.

"+:%%

+:!:

File: WebContent/index.jsp

<html>

<head>

<title>Spring 3.0 MVC Series: Hello World - ViralPatel.net</title>

</head>

<body>

${message}

</body>

</html>

<html>

<head>

<title>Spring 3.0 MVC Series: Index - ViralPatel.net</title>

</head>

<body>

<a href="hello.html">Say Hello</a>

</body>

</html>

Mapping Spring MVC in WEB.xml

"./ '

%+ 1%

 org.springframework.web.servlet.DispatcherServlet +

D+%!*M8E$

File: WEB-INF/web.xml

#+?H"

%+:%

DI8J+D

? 4'% [servlet-name]-servlet.xml !*M8E$

+'% spring-servlet.xml.

<?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"

xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"

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">

<display-name>Spring3MVC</display-name>

<welcome-file-list>

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

</welcome-file-list>

#

<servlet>

<servlet-name>spring</servlet-name>

<servlet-class>

org.springframework.web.servlet.DispatcherServlet

</servlet-class>

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

</servlet>

<servlet-mapping>

<servlet-name>spring</servlet-name>

<url-pattern>*.html</url-pattern>

</servlet-mapping>

</web-app>

Spring con#guration #le

%8+!*M8E$

File: WEB-INF/spring-servlet.xml

+%%'%I+-8J#

 net.viralpatel.spring3.controller 

#HelloWorldController "% viewResolver.

#%+ /WEB-INF/jsp/T+.jsp 

"E1!'":

PQ#=!*M8E$=:=:

That’s All Folks

You may want to run the application now and see the result. I assume you have already configured Tomcat in

eclipse. All you need to do:

Open Server view from Windows > Show View > Server. Right click in this view and select New > Server and

add your server details.

To run the project, right click on Project name from Project Explorer and select Run as > Run on Server

(Shortcut: Alt+Shift+X, R)

<?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:p="http://www.springframework.org/schema/p"

xmlns:context="http://www.springframework.org/schema/context"

xsi:schemaLocation="http://www.springframework.org/schema/beans

http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

http://www.springframework.org/schema/context

http://www.springframework.org/schema/context/spring-context-3.0.xsd">

#

<context:component-scan

base-package="net.viralpatel.spring3.controller" />

#

<bean id="viewResolver"

class="org.springframework.web.servlet.view.UrlBasedViewResolver">

<property name="viewClass"

value="org.springframework.web.servlet.view.JstlView" />

<property name="prefix" value="/WEB-INF/jsp/" />

<property name="suffix" value=".jsp" />

</bean>

</beans>

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