通过glassfish服务器访问mysql数据库时，访问被拒绝

Question

I'm following a tutorial which uses GlassFish to access a mysql database in NetBeans. The problem is I'm getting this error

Internal Exception: java.sql.SQLException: Error in allocating a connection. Cause: Connection could not be allocated because: Access denied for user 'root'@'localhost' (using password: NO)

when I try to deploy my app. I understand I need to add the password to the configuration so that GlassFish can establish the connection. The problem is I'm not sure where to include it within the persistence file.

 <?xml version="1.0" encoding="UTF-8"?> <persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"> <persistence-unit name="com.mycompany_MyApp_ejb_1.0-SNAPSHOTPU" transaction-type="JTA"> <jta-data-source>jdbc/creditpurchase</jta-data-source> <exclude-unlisted-classes>false</exclude-unlisted-classes> <properties/> </persistence-unit> </persistence> 

Answer 1

You can edit properties in glassfish admin console. Resources->JDBC->Connections Pools->your_connection_pool in Additional Properties tab. You can add property with name password. take a look here .

Answer 2

I was able to do it here:

C:\Code\Java\Glassfish\glassfish3\glassfish\domains\domain1\config\domain.xml

Change the properties within the jdbc-connection-pool tag