ERROR 1044: Access denied for user 'username@%' to database 'db_name'

[Astha Sharma]

Hello Ranchers

I am trying to connect my web service with the database running on server.
Following is the code.

1 String url = "jdbc:mysql://"+"server ip"+":"+"port"+"/"+"db name";
2 Connection connection = DriverManager.getConnection(url,"username","password"); 

Doing this i'm getting following exception on line 2

java.sql.SQLException: null, message from server: "Host '115.115.119.34' is not allowed to connect to this MySQL server"

To resolve this I tried runnig the command in phpMyAdmin-

"GRANT ALL PRIVILEGES ON db_name .* TO 'username'@'%' IDENTIFIED BY 'password'"

on server by the getting error-

1044: Access denied for user 'username@%' to database 'db_name'

I tried a lot but not getting any way to resolve this error. Please help me resolving this issue.
Thanks in advance for your humble replies.

[Astha Sharma]

Please answer my question if someone knows anything about it. I am waiting for replies.
Thanks in advance