Java.lang.Exception: Resource processing failed, failure reason: Com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:Unknown column '????? ‰ ' in ' WHERE clause '

1:unknown column '????? ‰ ' in ' WHERE clause ', this problem, Baidu a search, quite a lot of, but seems to have not solved my problem. How do I splice the SQL? Solve this SQL stitching bug. Hope can help to the fortunate to see the people, thank you.

1 "  "+" \ "+ Userno +" \ ";

May not understand, haha, the company's own encapsulation, it's okay, the key to solve this error lies in + "\"+ Userno + "\", this sentence, the dynamic value of their own to replace the Userno can be.

Java.lang.Exception: Resource processing failed, failure reason: Com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:Unknown column '????? ‰ ' in ' WHERE clause '