spring 错误(org.springframework.beans.NotWritablePropertyException)

本文详细解析了Spring框架中出现org.springframework.beans.NotWritablePropertyException异常的原因,并通过具体示例说明了如何正确配置XML文件以避免此类异常。

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spring 错误(org.springframework.beans.NotWritablePropertyException)
  org.springframework.beans.NotWritablePropertyException: Invalid property 'postDao' of bean class?

  出现异常的原因是在application-xxx.xml中property name的错误。

  <property name="...."> 中name的名字是与bean的set方法相关的,而且要注意大小写。

  比如:
public class PostManageImpl extends BaseManage implements PostManage {
 private PostDAO dao = null;
 public void setPostDAO(PostDAO postDAO){
  this.dao = postDAO;
 }
}
那么xml的定义应该是:

<bean id="postManage" parent="txProxyTemplate">
<property name="target">
 <bean class="com.yz.spring.service.implement.PostManageImpl">
  <property name="postDAO"><ref bean="postDAO"/></property> 对
  <property name="dao"><ref bean="postDAO"/></property> 错
 </bean>
</property>
</bean>

 
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'httpInvokerConfig': Unsatisfied dependency expressed through field 'appMerchantService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'appMerchantDec' defined in ServletContext resource [/WEB-INF/tpaic-auto-net-servlet.xml]: Cannot resolve reference to bean 'dispatchService' while setting bean property 'dispatch'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dispatchService' defined in ServletContext resource [/WEB-INF/tpaic-auto-net-servlet.xml]: Invocation of init method failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'com.tpaic.nonmotor.biz' defined in class path resource [com/tpaic/nonmotor/biz/beanRefContext.xml]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.context.support.ClassPathXmlApplicationContext]: Constructor threw exception; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'brandAutoTypeService' defined in class path resource [com/tpaic/nonmotor/biz/brand-service-context.xml]: Cannot resolve reference to bean 'contractBoSupport' while setting bean property 'contractBoSupport'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contractBoSupport' defined in class path resource [com/tpaic/nonmotor/biz/service-bo.xml]: Cannot resolve reference to bean 'inquireDetailService' while setting bean property 'inquireDetailService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'inquireDetailService' defined in class path resource [com/tpaic/nonmotor/biz/service-context-part.xml]: Cannot resolve reference to bean 'inquireDetailBoService' while setting bean property 'inquireDetailBoService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'inquireDetailBoService' defined in class path resource [com/tpaic/nonmotor/biz/service-bo.xml]: Cannot resolve reference to bean 'applyPolicyBo' while setting bean property 'applyPolicyBo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'applyPolicyBo' defined in class path resource [com/tpaic/nonmotor/biz/service-bo.xml]: Cannot resolve reference to bean 'commonParameterSupport' while setting bean property 'common'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'commonParameterSupport' defined in class path resource [com/tpaic/nonmotor/biz/service-context-part.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'aggregatedSearchService' of bean class [com.tpaic.nonmotor.biz.util.CommonParameterSupport]: Bean property 'aggregatedSearchService' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
06-11
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