creating user in mysql using java

Question

In MySQL command line client after logging in as root, I typed:

connect mydb;
grant all privileges on mydb.* to \'admin\'@\'localhost\' identifi         


        

Answer 1

I tried working with query parameters - what I found somewhat confusing is that you have to put a blank between the parameter and @localhost for example - this here worked for me: (jpaEm is a JpaEntityManager here)

// Create user
String sql = "CREATE USER ? @localhost";
Query query = jpaEm.createNativeQuery(sql);
query.setParameter(1, user.getUserName());
jpaEm.getTransaction().begin();
query.executeUpdate();
jpaEm.getTransaction().commit();

// Set password
sql = "SET PASSWORD FOR ? @localhost = PASSWORD(?)";
query = jpaEm.createNativeQuery(sql);
query.setParameter(1, user.getUserName()); 
query.setParameter(2, user.getPassword());
jpaEm.getTransaction().begin();
query.executeUpdate();
jpaEm.getTransaction().commit();