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Copy pathtask_spider_template.tmpl
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79 lines (65 loc) · 2.28 KB
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# -*- coding: utf-8 -*-
"""
Created on {DATE}
---------
@summary:
---------
@author: {USER}
"""
import feapder
from feapder import ArgumentParser
class ${spider_name}(feapder.TaskSpider):
# 自定义数据库,若项目中有setting.py文件,此自定义可删除
__custom_setting__ = dict(
REDISDB_IP_PORTS="localhost:6379",
REDISDB_USER_PASS="",
REDISDB_DB=0,
MYSQL_IP="localhost",
MYSQL_PORT=3306,
MYSQL_DB="",
MYSQL_USER_NAME="",
MYSQL_USER_PASS="",
)
def start_requests(self, task):
task_id = task.id
url = task.url
yield feapder.Request(url, task_id=task_id)
def parse(self, request, response):
# 提取网站title
print(response.xpath("//title/text()").extract_first())
# 提取网站描述
print(response.xpath("//meta[@name='description']/@content").extract_first())
print("网站地址: ", response.url)
# mysql 需要更新任务状态为做完 即 state=1
yield self.update_task_batch(request.task_id)
if __name__ == "__main__":
# 用mysql做任务表,需要先建好任务任务表
spider = ${spider_name}(
redis_key="xxx:xxx", # 分布式爬虫调度信息存储位置
task_table="", # mysql中的任务表
task_keys=["id", "url"], # 需要获取任务表里的字段名,可添加多个
task_state="state", # mysql中任务状态字段
)
# 用redis做任务表
# spider = ${spider_name}(
# redis_key="xxx:xxxx", # 分布式爬虫调度信息存储位置
# task_table="", # 任务表名
# task_table_type="redis", # 任务表类型为redis
# )
parser = ArgumentParser(description="${spider_name}爬虫")
parser.add_argument(
"--start_master",
action="store_true",
help="添加任务",
function=spider.start_monitor_task,
)
parser.add_argument(
"--start_worker", action="store_true", help="启动爬虫", function=spider.start
)
parser.start()
# 直接启动
# spider.start() # 启动爬虫
# spider.start_monitor_task() # 添加任务
# 通过命令行启动
# python ${file_name} --start_master # 添加任务
# python ${file_name} --start_worker # 启动爬虫