spring 检查依赖

Exception in thread "main" org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'chiness' defined in class path resource [applicationContext.xml]: Unsatisfied dependency expressed through bean property 'age': Set this property value or disable dependency checking for this bean.
?at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.checkDependencies(AbstractAutowireCapableBeanFactory.java:1183)
?at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1004)
?at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:470)
?at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.java:409)
?at java.security.AccessController.doPrivileged(Native Method)
?at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:380)
?at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:264)
?at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:220)
?at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:261)
?at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
?at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
?at lee.BeanTest.main(BeanTest.java:11)

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spring配置文件
<?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="steelAxe" dependency-check="simple">
??<property name="axe" ref="steelAxe"></property>
?</bean>
</beans>

如果我们将依赖类型设置为"simple"及"Objects"时，会报以上的错误、
1、即如果依赖类型设置为 objects时，如果不显示给对象赋值，则报错
2、如果依赖类型设置为 simple时，如果不为变量显示赋值时，则报错