Java program to parse a date and time string from a log file and store it in a database

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import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class LogParser {

    public static void main(String[] args) {
        String logFilePath = "your_log_file.log"; // Replace with your log file path
        String jdbcUrl = "jdbc:mysql://localhost:3306/your_database"; // Replace with your database URL
        String username = "your_username";
        String password = "your_password";

        try {
            // Establish a database connection
            Connection connection = DriverManager.getConnection(jdbcUrl, username, password);

            // Prepare a SQL statement for inserting data into the database
            String insertSQL = "INSERT INTO log_data (log_date) VALUES (?)";
            PreparedStatement preparedStatement = connection.prepareStatement(insertSQL);

            // Create a SimpleDateFormat to parse date and time strings
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

            // Read the log file
            BufferedReader reader = new BufferedReader(new FileReader(logFilePath));
            String line;
            while ((line = reader.readLine()) != null) {
                // Assuming the date and time string is located at a specific position in the log file
                String dateTimeString = extractDateTime(line);

                try {
                    // Parse the date and time string
                    Date parsedDate = dateFormat.parse(dateTimeString);

                    // Set the parsed date into the prepared statement
                    preparedStatement.setTimestamp(1, new java.sql.Timestamp(parsedDate.getTime()));

                    // Execute the SQL statement to insert the data into the database
                    preparedStatement.executeUpdate();
                } catch (ParseException e) {
                    System.err.println("Error parsing date and time from line: " + line);
                }
            }

            // Close resources
            preparedStatement.close();
            connection.close();
            reader.close();
        } catch (SQLException | IOException e) {
            e.printStackTrace();
        }
    }

    private static String extractDateTime(String line) {
        // Implement this method to extract the date and time string from your log file
        // You may need to use regular expressions or other methods based on your log file format
        return "";
    }
}

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