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问题：

org.apache.ibatis.ognl.ExpressionSyntaxException: Malformed OGNL expression:  title != null title != '' [org.apache.ibatis.ognl.ParseException: Encountered "title" at line 1, column 16.

Was expecting one of:

<EOF> 

    "," ...     "=" ...     "?" ...     "||" ...     "or" ...     "&&" ...     "and" ...     "|" ...     "bor" ...     "^" ...     "xor" ...     "&" ...     "band" ...     "==" ...     "eq" ...     "!=" ...     "neq" ...     "<" ...     "lt" ...     ">" ...     "gt" ...     "<=" ...     "lte" ...     ">=" ...     "gte" ...     "in" ...     "not" ...     "<<" ...     "shl" ...     ">>" ...     "shr" ...     ">>>" ...     "ushr" ...     "+" ...     "-" ...     "*" ...     "/" ...     "%" ...     "instanceof" ...     "." ...     "(" ...     "[" ...     <DYNAMIC_SUBSCRIPT> ...     ]

原因：

因为and 没写

 

 

 

 

 

 

 

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