JDBC character encoding

Question

I have a Java Web application running on GlassFish 3 and JPA (EclipseLink) on MySQL. The problem I\'m facing is that if I\'m saving entities to the database with the u

Answer 1

It's JDBC, not JPA that determines the encoding:

jdbc:mysql://localhost:3306/administer?characterEncoding=utf8

Answer 2

I had to add useUnicode=true as well, so I had to concat the parameters with '&' so it looks like this:

jdbc:mysql://127.0.0.1:3306/warranteer?useUnicode=true&characterEncoding=UTF-8

If you're using maven profiles to set the MySQL URL, like me, make sure you put & instead & because maven unescape the url when writing the persistence.xml file to classes folder.

Answer 3

New version JDBC driver auto detect the characterEncoding. You do not need to set it explicitly.

Answer 4

I solved it with the following: I used the GlassFish admin interface to add this property to my connection pool's settings:

characterEncoding = UTF-8