root cause
org.hibernate.exception.SQLGrammarException: could not execute query
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com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: SELECT command denied to user'databasename'@'127.0.0.1' for table
原因与解决:
因为Hibernate Tools(或者Eclipse本身的Database Explorer)生成*.hbn.xml工具中包含有catalog="databasename"(*表示数据库名称)这样的属性,将该属性删除就可以了.