redis做mysql缓存操作步骤

以下是使用Redis作为MySQL缓存的操作步骤：

1. 安装redis-py库

pip install redis

2. 连接Redis

import redis

redis_conn = redis.Redis(host='localhost', port=6379, db=0)

3. 连接MySQL

import mysql.connector

mysql_conn = mysql.connector.connect(
  host="localhost",
  user="yourusername",
  password="yourpassword",
  database="yourdatabase"
)

4. 查询MySQL数据

cursor = mysql_conn.cursor()
cursor.execute("SELECT * FROM yourtable")
result = cursor.fetchall()

5. 将MySQL数据存入Redis

for row in result:
    redis_conn.hmset(row[0], {'column1': row[1], 'column2': row[2], ...})

6. 从Redis中获取MySQL数据

result = redis_conn.hgetall(your_key)

7. 如果MySQL数据更新，需要手动更新Redis缓存

cursor.execute("UPDATE yourtable SET column1 = 'new_value' WHERE id = 'your_id'")
redis_conn.hmset(your_id, {'column1': 'new_value'})