异常处理：Bean property 'XXX' is not writable or has an invalid setter method._bean property '' is not writable or has an invalid-优快云博客

本文链接：https://blog.youkuaiyun.com/chenchunlin526/article/details/72954278

本文分析了Spring框架中出现的依赖注入异常，并提供了解决方案。重点在于确保XML配置文件中的属性名与Java中setter方法参数名一致。

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异常：Bean property 'XXX' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

完整异常信息：

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'cnkiNewInfoService': Injection of resource dependencies failed;

nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'luceneJournalService' defined in file [D:\Workspaces\eclipse_luna\.metadata\.plugins\org.eclipse.wst.server.core\tmp3\wtpwebapps\sky\WEB-INF\classes\com\ourchem\data\spring\journal-spring.xml]: Error setting property values;

nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'indexWriterJournalCreator' of bean class [com.ourchem.data.lucene.impl.LuceneJournalServiceImpl]: Bean property 'indexWriterJournalCreator' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

分析：

此异常一般出现在spring依赖注入时，如果你用set注入，在spring的XML配置文件中的property属性的name值一定要和你在java中的set方法里的变量一直。

具体举例，解决方法如下：