错误内容：
Error creating bean with name 'registerStudentService' defined
in URL [file:F:/apache-tomcat-8.0.52/webapps/school/WEB-INF/classes/conf/context-student.xml]:
Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException:
Invalid property 'registerTimeDao' of bean class [com.student.service.RegisterStudentService]:
Bean property 'registerTimeDao' is not writable or has an invalid setter method.
Does the parameter type of the setter match the return type of the getter?
这个错误很简单，只是很久没有使用spring了导致有些生疏了。我们看最后一句话： Does the parameter type of the setter match the return type of the getter?中文意思就是：设置器的参数类型是否与吸气剂的返回类型匹配？【使用百度翻译】其实说得直白一点，就是没有设置set方法和get方法。我在向registerStudentService中注入registerTimeDao时，忘记给registerTimeDao添加set方法和get方法，所以导致抛出这个异常，以后一定会多加小心！