Security-related question about a possible exposed credential

[Emma-NYL]

Hello,

My name is Emma, I am conducting an academic study on possible credential exposure in public GitHub repositories.

While analyzing this repository, I found a string that may represent a credential. I'm including the code snippet below containing possible leakage. To avoid exposing sensitive information publicly, I marked the sensitive information.

Could you please help clarify whether the detected string is:

1. a real credential, or
2. a placeholder / example value?

Thank you for your time.

---

Code snippet (sensitive values masked):

			
//			String dbUrl = "jdbc:mysql://127.0.0.1:330****avel?characterEncoding=gbk";
//			String dbUrl = "jdbc:mysql://192.****233.21:3306/travel";
			String dbUrl = "jdbc:mysql://127.0.0.1:3306/t****ldata?characterEncoding=utf-8";

			String dbUser = "1****";
			String dbPwd = "1****";
			conn = DriverManager.getConnection(dbUrl, dbUser, dbPwd);
		} catch (Exception e) {
			System.err.println("数据库连接失败");
			e.printStackTrace();
		}
		return conn;

Thank you in advance for your time - I really appreciate it!

Sincerely,
Emma