JDBC Connection MySQL Error: Com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:Unknown column ' é? ' å?‰æ-' in ' Field list '

Solve the Chinese display garbled problem, and then there is a problem,

Think about it, this is definitely the question of entering text.

Try it, as expected.

Again suspected coding, there is no way, only very reluctantly to Baidu, the result is no problem with the code AH.

Sql.execute ("INSERT INTO Reader" values (' "+rn+" ', ' "+pid+" ', ' "+tele+" ', ' "+kno+" ') ");    

The original error is because I did not write single quotes, MySQL of course do not know AH. OK, I remember.

JDBC Connection MySQL Error: Com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException:Unknown column ' é? ' å?‰æ-' in ' Field list '