报错：could not extract ResultSet

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调接口时报错：

Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.

Thu Aug 16 16:02:38 CST 2018
There was an unexpected error (type=Internal Server Error, status=500).
could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet

原因：数据库字段与实体bean属性对不上