Transferred from: http://snowolf.iteye.com/blog/577989
Some changes have taken place in recent work, so it is necessary to learn the spring annotations.
On the Internet to find some examples, in general, compared to the soil, most of the reprint excerpt, follow the instructions to get down at all can not run, simply go through this muddy water, here leave thousand imprint.
This time, let's build a very simple Web application, from controller to DAO. Regardless of the implementation, only a clear understanding of the overall architecture is first. In the future, the details of each layer are described in layers.
Related references:
Spring Annotation Learning Codex (i) building a simple Web application
Spring Annotation Learning Codex (ii) control layer Grooming
Spring Annotation Learning Codex (iii) Form page processing
Spring Annotation Learning Codex (IV.) Persistence layer Analysis
Spring Annotation Learning Codex (v) Business Layer transaction processing
Spring Annotation Learning Codex (vi) test
Spring Annotation Learning Codex (vii) Addendum-@ResponseBody, @RequestBody, @PathVariable
Spring Annotation Learning Codex (eight) addendum--@ExceptionHandler
We will use the following jar package:
Reference
Aopalliance-1.0.jar
Commons-logging-1.1.1.jar
Log4j-1.2.15.jar
Spring-beans-2.5.6.jar
Spring-context-2.5.6.jar
Spring-context-support-2.5.6.jar
Spring-core-2.5.6.jar
Spring-tx-2.5.6.jar
Spring-web-2.5.6.jar
Spring-webmvc-2.5.6.jar
See Web. XML first
XML code <?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>spring</display-name> <!-- Application path --> <context-param> <param-name>webAppRootKey</param-name> <param-value>spring.webapp.root</param-value> </context-param> <!-- Log4J configuration --> <context-param> <param-name> log4jconfiglocation</param-name> < param-value>classpath:log4j.xml</param-value> </context-param > <context-param> <param-name>log4jRefreshInterval</param-name> <param-value>60000</param-value> </ context-param> <!--Spring context configuration --> <context-param> <param-name> contextconfiglocation</param-name> < param-value>/web-inf/applicationcontext.xml</param-value> </ context-param> <!-- Character Set filters --> <filter> < filter-name>characterencodingfilter</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> <init-param> < param-name>forceencoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> < filter-name>characterencodingfilter</
