useBean 中单引号和双引号引起的错误

 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: /basic.jsp(45,0) The value for the useBean class attribute spring.jsp.StudentBean is invalid.

单引号和双引号混合使用时候报的错误