1.创立Spring配置

典范的Spring XML配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="https://springframework.org/schema/beans"
    xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="https://www.springframework.org/schema/beans
        https://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<!-- Bean declarations go here -->
<beans><?xml version