Spring 类构造器初始化实例

Posted 2020-06-08

构造方法类Bean1

package com.hao947.bean;

public class Bean1 {
	public Bean1() {
		System.out.println("bean1...构造方法");
	}
	public void show(){
		System.out.println("bean1...方法");
	}
}

配置文件applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- 整个Spring文件根元素就是beans -->
<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-3.1.xsd">
	<!-- 此处及用Bean元素来定义Spring能创建的对象 -->
	<bean id="bean1" class="com.hao947.bean.Bean1">
	</bean>
</beans>

測试

public class InitBeanApp {
	@Test
	public void show() {
		ApplicationContext ac = new ClassPathXmlApplicationContext(
				"applicatioContext.xml");
		Bean1 bs = (Bean1) ac.getBean("bean1");
		System.out.println(bs);
	}
}

结果

bean1...构造方法
[email protected]