“丝路通:分布式爬虫任务分配”的版本间的差异
来自CloudWiki
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+ | ==任务表建立== | ||
+ | ===安装mysql和django=== | ||
+ | *[[Centos7 安装python3]],本项目安装python3.6 | ||
+ | *[[Centos7 安装MySQL]] | ||
+ | *[[Django安装与启动]] | ||
+ | |||
+ | ==model设计和资源导入 == | ||
+ | *[[项目初始化]]、补充:[[MySQL中的character set和collation]] | ||
+ | *[[user models设计]] | ||
+ | *[[goods modeles设计]]、补充:[[django中choice的使用]] | ||
+ | *[[trade交易的model设计]] | ||
+ | *[[用户操作的model设计]]、补充:[[django中unique together使用]] |
2020年9月17日 (四) 14:07的版本
任务切割
将原始的待爬目录表 分割成许多小份,当作许多小任务去完成。
敦煌网
import time task_header ='../../task/dh_task/dh_task_' #header def assign_task(): task_content = "" # 创建类别网址列表 fp = open('dh_sub_category.csv', "rt") # 打开csv文件 count= 0 num =0 #类别名 类目级别 父类目级别 s =set()#储存已有的类别 for line in fp: # 文件对象可以直接迭代 count +=1 task_content +=line if count%100 ==0: num += 1 fw = open(task_header+str(num)+".csv","w",encoding="utf-8") fw.write(task_content) fw.close() task_content ="" fw = open(task_header+str(num)+".csv","a",encoding="utf-8") fw.write(task_content) fw.close() task_content ="" fp.close() if __name__ == '__main__': assign_task()
阿里巴巴
import time task_header ='../../task/ali_task/ali_task_' #header def assign_task(): task_content = "" # 创建类别网址列表 fp = open('alibaba_categary.csv', "rt") # 打开csv文件 count= 0 num =0 #类别名 类目级别 父类目级别 for line in fp: # 文件对象可以直接迭代 count +=1 task_content +=line if count%100 == 0: num += 1 fw = open(task_header+str(num)+".csv","w",encoding="utf-8") fw.write(task_content) fw.close() task_content ="" if num <= 50: fw = open(task_header+str(num)+".csv","a",encoding="utf-8") else: fw = open(task_header+str(num+1)+".csv","a",encoding="utf-8") fw.write(task_content) fw.close() task_content ="" fp.close() if __name__ == '__main__': assign_task()
中国制造网
import time task_header ='../../task/mc_task/mc_task_' #header def assign_task(): task_content = "" # 创建类别网址列表 fp = open('made_in_china_sub_cat.csv', "rt") # 打开csv文件 count= 0 num =0 for line in fp: # 文件对象可以直接迭代 count +=1 task_content +=line if count%200 ==0: num += 1 fw = open(task_header+str(num)+".csv","w",encoding="utf-8") fw.write(task_content) fw.close() task_content ="" if num <= 100: fw = open(task_header+str(num)+".csv","a",encoding="utf-8") else: fw = open(task_header+str(num+1)+".csv","a",encoding="utf-8") fw.write(task_content) fw.close() task_content ="" fp.close() if __name__ == '__main__': assign_task()
任务表建立
安装mysql和django
- Centos7 安装python3,本项目安装python3.6
- Centos7 安装MySQL
- Django安装与启动