SSM框架搭建问题出现了这个问题但是我不太理解出错在哪里

[轻烟飘荡]

警告: Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userServiceImpl': Unsatisfied dependency expressed through field 'studentDao'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'IUserDao' defined in file [C:\Users\CXC\IdeaProjects\commonframework\target\classes\com\cherry\dao\IUserDao.class]: Cannot resolve reference to bean 'sqlSessionFactory' while setting bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource [applicationContext-dao.xml]: Cannot resolve reference to bean 'dataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [applicationContext-dao.xml]: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'username' of bean class [com.mchange.v2.c3p0.ComboPooledDataSource]: Bean property 'username' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

出错的是这两个

[bcsflilong]

应该是配置文件写错了

com.mchange.v2.c3p0.ComboPooledDataSource

应该用user 不是username

[bcsflilong]

Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property 'username' of bean class [com.mchange.v2.c3p0.ComboPooledDataSource]: Bean property 'username' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

[loveljy_19901114]

com.mchange.v2.c3p0.ComboPooledDataSource 看报错是你的这个类初始化有问题吧，这个类的username属性设错了