spring为java.util.Properties类型的属性进行赋值过程解析

package com.gong.spring.beans;

import java.util.Properties;

public class DataSource {
  private Properties properties;

  public Properties getProperties() {
    return properties;
  }

  public void setProperties(Properties properties) {
    this.properties = properties;
  }

  @Override
  public String toString() {
    return "DataSource [properties=" + properties + "]";
  }
}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  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.xsd">
  
  <bean id="dataSource" class="com.gong.spring.beans.DataSource">
    <property name="properties">
      <props>
        <prop key="user">root</prop>
        <prop key="password">123456</prop>
        <prop key="jdbcUrl">jdbc:mysql:///test</prop>
        <prop key="driverClass">com.mysql.jdbc.Driver</prop>
      </props>
    </property>
  </bean>

</beans>

package com.gong.spring.beans;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class Main {
  public static void main(String[] args) {
    //1.创建spring的IOC容器对象
    ApplicationContext ctx = new ClassPathXmlApplicationContext("applicationContext.xml");
    //2.从容器中获取Bean实例
    DataSource dataSource = (DataSource) ctx.getBean("dataSource"); 
    System.out.println(dataSource.toString());
  }
}