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)

 

 

 

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" class="lee.SteelAxe"></bean>
 <!-- dependency-check
  1、simple 会检查简单类型及集合类型属性的设定
  2、objects 会检查对象类型
  3、all 检查以上两种类型
  -->
 <bean id="chiness" class="lee.Chinese" 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