mysql - java ResultSetMetaData gets Chinese alias garbled

Question

1. code show as below:
   

2. If the alias is Chinese resultSetMetaData.getColumnName(i 1), this code will get garbled data.

3. The Chinese in the result set is normal.
4.mysql character settings are as follows

Answer 1

Add encoding parameters after the JDBC url

?useUnicode=true&characterEncoding=UTF-8