如何从mysql数据库中加载图片并在android的imageview中显示？

// 导入所需的类
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;
import java.io.InputStream;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.widget.ImageView;

// 异步任务，用于从数据库中加载图片
private class LoadImageTask extends AsyncTask<String, Void, Bitmap> {
    private ImageView imageView;

    public LoadImageTask(ImageView imageView) {
        this.imageView = imageView;
    }

    protected Bitmap doInBackground(String... params) {
        String imageId = params[0];
        Bitmap bitmap = null;

        try {
            // 建立数据库连接
            Class.forName("com.mysql.jdbc.Driver");
            Connection connection = DriverManager.getConnection("jdbc:mysql://your_mysql_server:port/your_database", "username", "password");

            // 执行查询语句，获取图片路径
            Statement statement = connection.createStatement();
            String query = "SELECT image_path FROM images WHERE image_id = '" + imageId + "'";
            ResultSet resultSet = statement.executeQuery(query);

            if (resultSet.next()) {
                String imagePath = resultSet.getString("image_path");

                // 从数据库中获取图片数据
                InputStream inputStream = new java.net.URL(imagePath).openStream();
                bitmap = BitmapFactory.decodeStream(inputStream);
            }

            // 关闭数据库连接
            resultSet.close();
            statement.close();
            connection.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

        return bitmap;
    }

    protected void onPostExecute(Bitmap result) {
        // 将加载到的图片设置到ImageView中
        imageView.setImageBitmap(result);
    }
}

// 在需要加载图片的地方调用异步任务
ImageView imageView = findViewById(R.id.imageView);
String imageId = "your_image_id";
new LoadImageTask(imageView).execute(imageId);