Spring configuration file [Servlet-name]-servlet.xml

Introduction to the Annotated controller:

The processor class is defined prior to spring2.5 by implementing the Controller interface or its implementation.

SPRING2.5 began to support the definition of processor classes through annotations @controller and @requestmapping, defaultannotationhandlermapping, Annotationmethodhandleradapter provides support for @controller and @requestmapping.

SPRING3.0 introduces restful architectural style support and introduces more annotations.

spring3.1 uses the new handlermapping and handleradapter to support @controller, @requestmapping annotation processor classes, Requesthandlermappingadapter and Requesthandlermapping.

The [servletname]-servlet.xml configuration file in spring is divided into three steps:

1. Configuring the Scan Package

<base-package= "com.tgb.web.controller.annotation"></  context:component-scan>

When spring starts, the classes that contain these annotations, such as @component @[email protected], are automatically scanned under the package and registered as beans. You can also register the controller directly in the container in the traditional way, see example.

Note: If <context:component-scan> is configured, the <context:annotation-config/> tag can be configured without XML, because the former contains the latter. In addition, <context:annotation-config/> also provides two sub-tags as follows, specific features are not described here.

1). <context:include-filter>

2.) <context:exclude-filter>

And you must declare the context in the file header as follows:

xmlns:context= "Http://www.springframework.org/schema/context"

Use <context:annotation-config/> implicitly to register autowiredannotationbeanpostprocessor with the spring container, Requiredannotationbeanpostprocessor, The 4 beanpostprocessor of Commonannotationbeanpostprocessor and persistenceannotationbeanpostprocessor enable the system to recognize @autowired ,@ Resource, @postconstruct,@ Predestroy, and other annotations . The traditional way to register is as follows (more cumbersome):

<class= " Org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor "/>

2. Configuring processor mappings and Processor adapters

    <!--Spring3.1 The beginning of the annotation handlermapping -    <Beanclass= "Org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>         <!--Spring3.1 The beginning of the annotation handleradapter -    <Beanclass= "Org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">        <!--thread-Safe Access session -        < Propertyname= "Synchronizeonsession"value= "true"/>    </Bean> 

Support for @controller and @requestmapping (enable the annotation support).

3. Configure the View resolver

    <!--Viewresolver -    <Beanclass= "Org.springframework.web.servlet.view.InternalResourceViewResolver">        < Propertyname= "Viewclass"value= "Org.springframework.web.servlet.view.JstlView"/>        < Propertyname= "prefix"value= "/web-inf/jsp/"/>        < Propertyname= "suffix"value= ". jsp"/>    </Bean>

Plus the front/suffix resolution view.

A copy of the configuration file is as follows:

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

<beans xmlns= "Http://www.springframework.org/schema/beans"
xmlns:context= "Http://www.springframework.org/schema/context"
xmlns:p= "http://www.springframework.org/schema/p"
Xmlns:mvc= "Http://www.springframework.org/schema/mvc"
Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"
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.xsd
Http://www.springframework.org/schema/mvc
Http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd ">

    <Context:component-scanBase-package= "Com.tgb.web.controller.annotation">    </Context:component-scan>    <!--Spring3.1 The beginning of the annotation handlermapping -    <Beanclass= "Org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>         <!--Spring3.1 The beginning of the annotation handleradapter -    <Beanclass= "Org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">        <!--thread-Safe Access session -        < Propertyname= "Synchronizeonsession"value= "true"/>    </Bean>            <!--Viewresolver -    <Beanclass= "Org.springframework.web.servlet.view.InternalResourceViewResolver">        < Propertyname= "Viewclass"value= "Org.springframework.web.servlet.view.JstlView"/>        < Propertyname= "prefix"value= "/web-inf/jsp/"/>        < Propertyname= "suffix"value= ". jsp"/>    </Bean>

<!--referencing static resources--
<mvc:resources location= "/img/" mapping= "/img/**"/>

<!--The processor configuration, you can also register the controller here (while scanning the package is already registered in the container)--

<bean class= "Com.javass.mvc.web.controller.SuccessController"/>

<bean class= "Com.javass.mvc.web.controller.FinshController"/>

</ Beans >

Spring configuration file [Servlet-name]-servlet.xml