python提取blob数据_如何将从数据库接收到的blob数据转换成python中的图像

将blob/image转换为image不需要cv2，只需要将blob/image存储在磁盘上并显示出来。下面是从mysql blob到磁盘文件的检索示例。。在

祝你好运！在

引用的页面URL:URLimport mysql.connector

from mysql.connector import Error

def write_file(data, filename):

# Convert binary data to proper format and write it on Hard Disk

with open(filename, 'wb') as file:

file.write(data)

def readBLOB(emp_id, photo, bioData):

print("Reading BLOB data from python_employee table")

try:

connection = mysql.connector.connect(host='localhost',

database='python_db',

user='pynative',

password='pynative@#29')

cursor = connection.cursor()

sql_fetch_blob_query = """SELECT photo from python_employee where id = %s"""

cursor.execute(sql_fetch_blob_query, (emp_id,))

record = cursor.fetchall()

for row in record:

print("Id = ", row[0], )

print("Name = ", row[1])

image = row[2]