Implementing a HelloWorld application using SpringMVC's annotation configuration.

依托注解实现helloworld功能

仅需对采用xml格式的项目配置文件进行相应调整即可。

改变1：springMVC.xml

<?xml version=********"1.0"encoding="UTF-8"? >

<beansxmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"****
xmlns:p="http://www.springframework.org/schema/p"****
xmlns:aop="http://www.springframework.org/schema/aop"****
xmlns:context="http://www.springframework.org/schema/cont