spring中创建bean对象时多例和单例的区别

迷南。 2022-08-02 19:29 192阅读 0赞

<?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-2.5.xsd">
               
     	<bean id="helloWorld" class="cn.edu.initdestroy.HelloWorld" scope="prototype" init-method="init" destroy-
    
    method="destroy"></bean>
    </beans>

注意： 当一个bean是多例模式的情况下，lazy-init为false或者default无效。

<bean id="helloWorld"  class="cn.itcast.spring0909.scope.HelloWorld" scope="prototype" lazy-init="false"></bean>

<bean id="helloWorld" class="cn.edu.spring0909.createobject.when.HelloWorl" lazy-init="true"></bean>
       <bean id="person" class="cn.edu.spring0909.createobject.when.Person" lazy-init="true"></bean>