Save images to database using python

Generally, we store images in the file system and only store the file path in the database, but sometimes there are special needs: storing the image binary in the database.

Today we are using the python+mysql method

MYSQL supports storing images into the database, and accordingly has a special field BLOB (Binary Large Object), which is a larger binary object

There is also Larger binary LONGBLOB;

Note here: try to set the field as large as possible, because if the field length is set too small, only part of the picture will be displayed. Second: If the amount of data is large, try to avoid using this method, because mysql will be very slow to query big data.

The code below:

#!/usr/bin/python
#-*- coding: UTF-8 -*-
  
import MySQLdb as mysql
import sys
try:
    #读取图片文件
    fp = open("./test.jpg")
    img = fp.read()
    fp.close()
except IOError,e:
    print "Error %d %s" % (e.args[0],e.args[1])
    sys.exit(1)
try:
    #mysql连接
    conn = mysql.connect(host='localhost',user='root',passwd='123456',db='test')
    cursor = conn.cursor()
    #注意使用Binary()函数来指定存储的是二进制
    cursor.execute("INSERT INTO images SET data='%s'" % mysql.Binary(img))
    #如果数据库没有设置自动提交，这里要提交一下
    conn.commit()
    cursor.close()
    #关闭数据库连接
    conn.close()
except mysql.Error,e:
    print "Error %d %s" % (e.args[0],e.args[1])
    sys.exit(1)