Java – is JDBC secure?

I am a novice in JDBC. The new project requires me to use JDBC What I want to know is,

Is JDBC secure?

How to prevent "MySQL injection" problems?

What security issues should you pay attention to when using JDBC?

And how to ensure, I mean, optimize security to prevent hackers from invading the database?

Edit:

I tried Google, if I Google:

"PHP MySQL security problem" = > it gives a lot of results

If I Google:

"JDBC MySQL security problem" = > almost no relevant pages can be seen

Does this mean that using JDBC is safe? Don't worry about being hacked?

Solution

Use prepared statements For a hypothetical login, you can use this, for example:

PreparedStatement stmt = conn.prepareStatement("SELECT * FROM member WHERE member_username = ? AND member_password = ?");
stmt.setString(1,username);
stmt.setString(2,password);
stmt.execute();

ResultSet rs = stmt.getResultSet();
// ...

This will completely protect you from SQL injection vulnerabilities