进程实例

import pymysql
import urllib3
from lxml import etree
import logging
import requests
import queue
import time
import threading
from threading import RLock
import re

thread_num = 0
lock = RLock()
import multiprocessing

# 添加日志

logging.basicConfig(
    level=logging.INFO,  # 定义输出到文件的log级别，大于此级别的都被输出
    format=‘%(asctime)s  %(filename)s  %(levelname)s : %(message)s‘,  # 定义输出log的格式
    datefmt=‘%Y-%m-%d %H:%M:%S‘,  # 时间
    filename=‘druginfoError.log‘,  # log文件名
    filemode=‘a‘)  # 写入模式“w”或“a”


class yaoyuan(object):

    def __init__(self):
        self.strat_record = 1
        self.end_record = 10000001
        # self.db = pymysql.connect(host=‘localhost‘, port=3306, database=‘druginfo‘, user=‘root‘, password=‘mysql‘, charset=‘utf8‘)
        self.db = pymysql.connect(host=‘rm-bp195i4u0w1066u709o.mysql.rds.aliyuncs.com‘, port=3306, database=‘druginfo‘,
                                  user=‘qygwroot‘, password=‘kangcenet@123‘, charset=‘utf8‘)
        self.cursor = self.db.cursor()
        self.parse_page()

    def parse_page(self):
        star_time = time.time()
        threading_list = []
        # pass
        # print(‘这是一行mysql的测试数据‘)

        mypool = multiprocessing.Pool(10)
        # 并发10条进程
        for i in range(1000):
            # self.parse_page_data(i)
            mypool.apply_async(self.parse_page_data, (i,))
        # print(1)
        # 关闭进程池
        mypool.close()
        # 阻塞等待
        mypool.join()

        times = time.time() - star_time
        print(times)

    def parse_page_data(self, a):
        print(a)
        # self.db = pymysql.connect(host=‘localhost‘, port=3306, database=‘druginfo‘, user=‘root‘, password=‘mysql‘, charset=‘utf8‘)
        db = pymysql.connect(host=‘rm-bp195i4u0w1066u709o.mysql.rds.aliyuncs.com‘, port=3306, database=‘druginfo‘,
                             user=‘qygwroot‘, password=‘kangcenet@123‘, charset=‘utf8‘)
        cursor = db.cursor()
        drugsql = "insert into text(name) values(‘{}‘)"
        drugsql_data = drugsql.format(‘这是一行mysql的测试数据‘)
        # lock.acquire()
        cursor.execute(drugsql_data)
        db.commit()
        # lock.release()


if __name__ == ‘__main__‘:
    a = yaoyuan()