java将图片存入mysql数据库

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class ImageStorageExample {
    public static void main(String[] args) {
        String url = "jdbc:mysql://localhost:3306/database_name";
        String username = "username";
        String password = "password";

        try {
            // 加载数据库驱动
            Class.forName("com.mysql.jdbc.Driver");

            // 创建数据库连接
            Connection conn = DriverManager.getConnection(url, username, password);

            // 读取图片文件
            File file = new File("path_to_image_file");
            InputStream inputStream = new FileInputStream(file);
            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int length;
            while ((length = inputStream.read(buffer)) != -1) {
                outputStream.write(buffer, 0, length);
            }
            byte[] imageBytes = outputStream.toByteArray();

            // 将图片存入数据库
            String sql = "INSERT INTO images (image_data) VALUES (?)";
            PreparedStatement statement = conn.prepareStatement(sql);
            statement.setBytes(1, imageBytes);
            statement.executeUpdate();

            // 关闭资源
            statement.close();
            conn.close();
            inputStream.close();
            outputStream.close();

            System.out.println("图片已成功存入MySQL数据库。");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}