从MySQL检索和显示blob图像

CREATE TABLE images (
  id INT PRIMARY KEY AUTO_INCREMENT,
  image BLOB
);

INSERT INTO images (image) VALUES (LOAD_FILE('/path/to/image.jpg'));

import mysql.connector
from PIL import Image
import io

# 连接到MySQL数据库
cnx = mysql.connector.connect(user='username', password='password', host='localhost', database='database_name')

# 创建游标对象
cursor = cnx.cursor()

# 执行查询语句
query = "SELECT image FROM images WHERE id = %s"
cursor.execute(query, (image_id,))

# 检索图像数据
image_data = cursor.fetchone()[0]

# 将二进制数据转换为图像对象
image = Image.open(io.BytesIO(image_data))

# 显示图像
image.show()

# 关闭游标和数据库连接
cursor.close()
cnx.close()