Hello to all,
I have an application that uses most of the java ee 7 (jsf, ejb, cdi, jms, jpa etc).
The application is hosted on a wildfly 10.1.0 Final and connects to a mysql database through the following datasource.
<datasource jta="true" jndi-name="java:/commerceDS" pool-name="commerceDS" enabled="true" use-ccm="true"> <connection-url>jdbc:mysql://localhost:3306/commerce</connection-url> <driver-class>com.mysql.jdbc.Driver</driver-class> <connection-property name="databaseName"> commerce </connection-property> <driver>MySqlJDBCDriver</driver> <pool> <min-pool-size>30</min-pool-size> <initial-pool-size>50</initial-pool-size> <max-pool-size>100</max-pool-size> <prefill>true</prefill> </pool> <security> <user-name>root</user-name> <password>password</password> </security> <validation> <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLValidConnectionChecker"/> <background-validation>true</background-validation> <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.mysql.MySQLExceptionSorter"/> </validation> <statement> <share-prepared-statements>false</share-prepared-statements> </statement> </datasource>
On a windows 10 machine it works ok, however, when tried to use a linux machine with centos 6+, although the data are persisted to the database, the encoding is wrong. For example I cannot persist or merge greek characters. On the other hand if I input data to the table from an sql editor like workbench, I can retrieve data within the application with the correct encoding.
I tried using useUnicode=true&characterEncoding=utf-8 on the datasource connection url but it does not work.
Afterwards I saw in some examples the following useUnicode=true&amp;characterEncoding=utf-8 and I had the same result.
After testing every configuration I could think of, I tried to create a vm with centos and setup the same environment and had the same problem.
To solve my problem I had to force mysql to use the utf8 in the my.cnf
Am I doing something wrong or is this a bug?
Finally, to point out the obvious I am sure that the data from the jsf form are received from the server with the correct encoding. I have tested writing the received data to the log as well as the faces message of the jsf and they are displayed correctly.