After understanding the inseparable relationship between JDBC and the database, we can follow this idea and use JDBC to verify login. Because we can easily filter the data through JDBC to obtain some login information. This article provides a detailed overview of the steps to implement JDBC authentication login. Let’s take a look at the specific operation procedures.
Enter the username and password on the keyboard and compare it with the user information in the database to determine whether the login is successful.
1. Connect to the database
MyJDBCUtils.getConnection()
2. Get the request object stmt
conn.createStmtement()
3. Create a keyboard object and obtain the username and password
(1) Create keyboard entry object
(2) Prompt user input
(3) Obtain user input content
4. Write an SQL statement and put the username and password into the SQL statement.
5. Execute the query and obtain the query results
stmt.executeQuery(sql);
6. Determine whether the login is successful based on the query results.
7. Close the connection
The above is the method for JDBC to implement authentication login. Friends who want to use JDBC may wish to start with this simple authentication login to see if they can complete this operation independently.