spring内部bean实例

第一步：新建工程  SecondSpring

工程目录结构如下：

第二步：导入相应的jar包

略...

第三步：新建类

InnerBean.java

package com.xuzhiwen.spring2; public class InnerBean { private int id; private String name; public void setId(int id) { this.id = id; } public void setName(String name) { this.name = name; } @Override public String toString() { return "InnerBean [id=" + id + ", name=" + name + "]"; } public void inner(){ System.out.println(this); System.out.println("InnerBean.inner()..."); } }

第四步： 新建类

OutterBean.java

package com.xuzhiwen.spring2; public class OutterBean { private InnerBean innerBean; public void setInnerBean(InnerBean innerBean) { this.innerBean = innerBean; } public OutterBean(InnerBean innerBean) { this.innerBean = innerBean; } public void outter(){ System.out.println("OutterBean.outter()..."); innerBean.inner(); } }

 

第五步：新建配置文件

innerbean.xml

<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"> 　　 <bean id="outter" class="com.xuzhiwen.spring2.OutterBean">　　　　　<!--setter 方式注入--> <property name="innerBean"> <bean class="com.xuzhiwen.spring2.InnerBean"> <property name="id" value="2" /> <property name="name" value="test1" /> </bean> </property> 　　　　　<!--构造器 方式注入-->　 <!-- <constructor-arg> <bean class="com.xuzhiwen.spring2.InnerBean"> <property name="id" value="2" /> <property name="name" value="test1" /> </bean> </constructor-arg> --> </bean> </beans>

第六步：新建配置文件

common.xml

<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-2.5.xsd"> <import resource="xmlfolder/app1.xml" /> <import resource="xmlfolder/innerbean.xml" /> </beans>

 

第七步：新建测试类

Test.java

package com.xuzhiwen.spring2; import org.springframework.context.ApplicationContext; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Test { public static void main(String[] args) { ApplicationContext app = new ClassPathXmlApplicationContext("common.xml"); OutterBean out = (OutterBean) app.getBean("outter"); out.outter(); } }

第八步：　运行结果如下

 

转载于:https://www.cnblogs.com/beibidewomen/p/7388684.html