How Can I Connect to an SQLite Database from Java Using the JDBC Driver?-javaTutorial-php.cn

How Can I Connect to an SQLite Database from Java Using the JDBC Driver?

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Release： 2024-12-12 22:11:10

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How Can I Connect to an SQLite Database from Java Using the JDBC Driver?

Connecting to SQLite from Java

As you mentioned, SQLite's single file database format offers a convenient approach to data storage. One commonly used library for connecting to SQLite from Java is Javasqlite. However, there are indeed other prominent projects available.

SQLite JDBC Driver

One such option is the SQLite JDBC driver. By adding this JAR file to your project's classpath and importing the necessary packages, you can establish a connection to your SQLite database via JDBC.

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;

// ...

try {
    Connection connection = DriverManager.getConnection("jdbc:sqlite:my-database.db");
    // ...
} catch (SQLException e) {
    e.printStackTrace();
}

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Example Code

Here's a sample Java program that utilizes the SQLite JDBC driver to create, insert, and query data from a database:

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class SQLiteExample {

    public static void main(String[] args) {
        Connection connection = null;

        try {
            Class.forName("org.sqlite.JDBC");
            connection = DriverManager.getConnection("jdbc:sqlite:test.db");

            Statement statement = connection.createStatement();
            statement.executeUpdate("CREATE TABLE IF NOT EXISTS people (name TEXT, occupation TEXT)");

            PreparedStatement preparedStatement = connection.prepareStatement("INSERT INTO people (name, occupation) VALUES (?, ?)");
            preparedStatement.setString(1, "John");
            preparedStatement.setString(2, "Developer");
            preparedStatement.executeUpdate();

            ResultSet resultSet = statement.executeQuery("SELECT * FROM people");
            while (resultSet.next()) {
                System.out.println("Name: " + resultSet.getString("name") + ", Occupation: " + resultSet.getString("occupation"));
            }

        } catch (ClassNotFoundException | SQLException e) {
            e.printStackTrace();
        } finally {
            if (connection != null) {
                try {
                    connection.close();
                } catch (SQLException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

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This example creates a database connection, executes SQL commands to create a table and insert data, and finally queries the data from the table. By utilizing the SQLite JDBC driver, you can seamlessly interact with your SQLite database from Java applications.

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