Failed to convert property value of type 'java.util.LinkedHashMap' to required

Failed to convert property value of type 'java.util.LinkedHashMap' to required

博客分类： 
• 异常

Springmap 

注入map 字符串 value代码  

1. Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'payCallbackHandler' defined in URL [file:/E:/workspace/pay-biz/webapp/WEB-INF/classes/applicationContext_pay.xml]: Initialization of bean failed; nested exception is org.springframework.beans.TypeMisma  
2. tchException: Failed to convert property value of type 'java.util.LinkedHashMap' to required type 'java.util.Map' for property 'payMerIdParamMap'; nested exception is java.lang.NumberFormatException: For input string: "yeepay"  
3.         at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:527)  
4.         at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)  
5.         at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)  
6.         at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)  
7.         at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)  
8.         at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)  
9.         at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:269)  
10.         at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)  
11.         at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:876)  
12.         at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:818)  
13.         at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:735)  
14.         at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:478)  
15.         ... 32 more  

 

先检查类中Map需要注入的类型有没有写错，spring的注入会自动检测类型,自动匹配map的泛型定义类型.

我出错的原因是自己类型写错了。下面的方法用不上。

解决办法，指定map类型，默认LinkedHashMap

Java代码  

1. <bean id="beanName" class="package.xxx.xxx.Class">  
2.         <property name="data">  
3.             <bean class="java.util.HashMap">  
4.             <constructor-arg>   
5.             <map>  
6.                 ....................  
7.             </map>  
8.             </constructor-arg>  
9.             </bean>  
10.         </property>  
11.     </bean>  

 

来源：http://hi.baidu.com/songxy888/item/768315ff1e60c41fe2e3bdf5