queryrunner query报错 Cannot create com.c?报错

Caused by: java.sql.SQLException: Cannot create com.cciot.bean.User: com.cciot.bean.User Query: select *from user_tb Parameters: []
    at org.apache.commons.dbutils.AbstractQueryRunner.rethrow(AbstractQueryRunner.java:320)
    at org.apache.commons.dbutils.QueryRunner.query(QueryRunner.java:349)
    at org.apache.commons.dbutils.QueryRunner.query(QueryRunner.java:305)
    at com.cciot.dao.Impl.UserDaoImpl.findAllUser(UserDaoImpl.java:69)
    ... 26 more