GlassFish 5 and MySQL Connector
问题 I use GlassFish 5 with mysql-connector-java-8.0.13.jar and CLASSPATH values: C:\Program Files\glassfish5\glassfish\lib C:\Program Files\glassfish5\glassfish\domains\domain1\lib C:\Program Files\glassfish5\glassfish\domains\domain1\lib\ext After several restarts of both the server and the laptop it still gives this error: Ping Connection Pool failed for MySQL_sakila. Class name is wrong or classpath is not set for : com.mysql.jdbc.jdbc2.optional.MysqlDataSource Please check the server.log for