Question

spring+struts2+mybatis 整合报错

问题描述：1. 第一个图是applicationContext.xml的部分截图代码，spring生成的userDao对象引用了sqlSessionFactory 的对象；2. 第二图是报错信息，说 userDao是无用的bean请问，这是怎么回事啊？
后台错误：
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid property 'userDao' of bean class [com.yg.testdangdang.service.impl.UserServiceImpl]: Bean property 'userDao' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:1042)
at org.springframework.beans.BeanWrapperImpl.setPropertyValue(BeanWrapperImpl.java:902)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)
at org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:57)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1424)
... 26 more

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Answer 1

检查下你的userServiceImpl中的setUserDao那个方法，让你的第一个图截图错了。