automatic_crawler/application/common/mysql/mysql_helper.py

# -*- coding: utf-8 -*-
# @Author: luojunhui
# @Time: 2023/12/19
"""
数据库连接及操作
"""
import redis
import pymysql
from application.common.log import Local
from application.config.mysql_config import env_dict


class MysqlHelper(object):

    def __init__(self, env, mode, platform, action=''):
        mysql_config = env_dict[env]
        self.connection = pymysql.connect(
            host=mysql_config['host'],  # 数据库IP地址，内网地址
            port=mysql_config['port'],  # 端口号
            user=mysql_config['user'],  # mysql用户名
            passwd=mysql_config['passwd'],  # mysql用户登录密码
            db=mysql_config['db'],  # 数据库名
            charset=mysql_config['charset']  # 如果数据库里面的文本是utf8编码的，charset指定是utf8
        )
        self.mode = mode
        self.platform = platform
        self.action = action

    def select(self, sql):
        cursor = self.connection.cursor()
        cursor.execute(sql)
        data = cursor.fetchall()
        return data

    def update(self, sql):
        cursor = self.connection.cursor()
        try:
            res = cursor.execute(sql)
            self.connection.commit()
            return res
        except Exception as e:
            Local.logger(self.mode, self.platform).error(f"update_values异常，进行回滚操作:{e}\n")
            self.connection.rollback()

    def close(self):
        self.connection.close()


class RedisHelper:
    @classmethod
    def connect_redis(cls, env):
        if env == 'hk':
            redis_pool = redis.ConnectionPool(
                # host='r-bp154bpw97gptefiqk.redis.rds.aliyuncs.com',  # 内网地址
                # host='r-bp154bpw97gptefiqkpd.redis.rds.aliyuncs.com',  # 测试地址
                host='r-bp1mb0v08fqi4hjffupd.redis.rds.aliyuncs.com',  # 外网地址
                port=6379,
                db=2,
                password='Wqsd@2019'
            )
            redis_conn = redis.Redis(connection_pool=redis_pool)
        elif env == 'prod':
            redis_pool = redis.ConnectionPool(
                host='r-bp1mb0v08fqi4hjffu.redis.rds.aliyuncs.com',  # 内网地址
                # host='r-bp1mb0v08fqi4hjffupd.redis.rds.aliyuncs.com',  # 外网地址
                port=6379,
                db=2,
                password='Wqsd@2019'
            )
            redis_conn = redis.Redis(connection_pool=redis_pool)
        else:
            redis_pool = redis.ConnectionPool(
                # host='r-bp154bpw97gptefiqk.redis.rds.aliyuncs.com',  # 内网地址
                host='r-bp154bpw97gptefiqkpd.redis.rds.aliyuncs.com',  # 外网地址
                port=6379,
                db=2,
                password='Qingqu2019'
            )
            redis_conn = redis.Redis(connection_pool=redis_pool)
        return redis_conn

    @classmethod
    def redis_push(cls, env, task_key, data):
        redis_conn = cls.connect_redis(env)
        # print("开始写入数据")
        redis_conn.lpush(task_key, data)
        # print("数据写入完成")

    @classmethod
    def redis_pop(cls, env, task_key):
        redis_conn = cls.connect_redis(env)
        if redis_conn.llen(task_key) == 0:
            return None
        else:
            return redis_conn.rpop(task_key)