Why does fatal always appear when using opengaussjdbc? (tag database keyword user)

Use opengauss Always appear when FATAL: Invalid username/password, Ports and everything have been changed The monitoring interface is also changed to ＊ 了 , But it can't be solved , Is there anyone who can help me find out what the problem is? It's paid as long as it can help me solve this problem , The database is just not connected jdbc I'm so worried