{"id":205413,"date":"2025-05-29T16:01:23","date_gmt":"2025-05-29T08:01:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205413\/"},"modified":"2025-05-29T16:01:23","modified_gmt":"2025-05-29T08:01:23","slug":"scrapy-%e7%ae%a1%e9%81%93%e4%b8%ad%e8%bf%9e%e6%8e%a5%e6%95%b0%e6%8d%ae%e5%ba%93%e6%97%b6%e5%87%ba%e7%8e%b0attributeerror-mysqlpipeline-object-has-no-attribute-opens_spider%e9%94%99%e8%af%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205413\/","title":{"rendered":"Scrapy \u7ba1\u9053\u4e2d\u8fde\u63a5\u6570\u636e\u5e93\u65f6\u51fa\u73b0`AttributeError: ‘mysqlPipeline’ object has no attribute ‘opens_spider’`\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Scrapy \u7ba1\u9053\u4e2d\u8fde\u63a5\u6570\u636e\u5e93\u65f6\u51fa\u73b0`AttributeError: ‘mysqlPipeline’ object has no attribute ‘opens_spider’`\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n

<\/p>\n

scrapy \u4e2d\u4f7f\u7528\u7ba1\u9053\u5b58\u50a8\u6570\u636e\u65f6\u9047\u5230\u7684\u95ee\u9898\u53ca\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n

\u5728\u4f7f\u7528 scrapy \u65f6\uff0c\u4e0d\u5c11\u5f00\u53d1\u8005\u5728\u4f7f\u7528\u7ba1\u9053\u5b58\u50a8\u6570\u636e\u65f6\u4f1a\u9047\u5230\u95ee\u9898\u3002\u6bd4\u5982\uff0c\u5c1d\u8bd5\u4f7f\u7528\u6570\u636e\u5e93\u5b58\u50a8\u6570\u636e\u65f6\u9047\u5230\u62a5\u9519\u3002\u672c\u6587\u5c06\u9488\u5bf9\u6b64\u95ee\u9898\u8fdb\u884c\u5206\u6790\uff0c\u5e76\u63d0\u4f9b\u76f8\u5e94\u7684\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u4e00\u6bb5\u9047\u5230\u6b64\u95ee\u9898\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

import pymysql\n\nclass mysqlpipeline(object):\n    conn = none\n    cursor = none\n\n    # \u8fde\u63a5\u6570\u636e\u5e93\n    def opens_spider(self, spider):\n        self.conn = pymysql.connect(host='127.0.0.1', port=3306, user='root', password='123456', db='test',charset='utf8')\n\n    def process_item(self, item, spider):\n        self.cursor = self.conn.cursor()\n        try:\n            self.cursor.execute('insert into qiubai values(&quot;%s&quot;,&quot;%s&quot;)' % (item[&quot;author&quot;], item[&quot;content&quot;]))\n            self.conn.commit()\n        except exception as e:\n            print(e)\n            self.conn.rollback()  # \u56de\u6eda\n        return item\n\n    def close_spider(self, spider):\n        self.cursor.close()\n        self.conn.close()<\/pre>\n
\u62a5\u9519\u4fe1\u606f\u5982\u4e0b\uff1a<\/p>\n
attributeerror: 'mysqlpipeline' object has no attribute 'opens_spider'<\/pre>\n
\u95ee\u9898\u539f\u56e0<\/strong><\/p>\n
\u4ece\u62a5\u9519\u4fe1\u606f\u53ef\u4ee5\u770b\u51fa\uff0c\u95ee\u9898\u51fa\u5728 opens_spider \u65b9\u6cd5\u4e0a\u3002\u4e8b\u5b9e\u4e0a\uff0c\u5bf9\u4e8e scrapy \u6765\u8bf4\uff0c\u7ba1\u9053\u5185\u7528\u4e8e\u8fde\u63a5\u6570\u636e\u5e93\u7684\u65b9\u6cd5\u56fa\u5b9a\u4e3a open_spider\uff0c\u800c\u975e opens_spider\u3002<\/p>\n
\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n
\u53ea\u9700\u5c06 opens_spider \u4fee\u6539\u4e3a open_spider \u5373\u53ef\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n
\u4fee\u6539\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
import pymysql\n\nclass mysqlPipeline(object):\n    conn = None\n    cursor = None\n\n    # \u8fde\u63a5\u6570\u636e\u5e93\n    def open_spider(self, spider):\n        self.conn = pymysql.Connect(host='127.0.0.1', port=3306, user='root', password='123456', db='test',charset='utf8')\n\n    def process_item(self, item, spider):\n        ...\n\n    def close_spider(self, spider):\n        ...<\/pre>\n
\u672c\u7bc7\u5173\u4e8e\u300aScrapy \u7ba1\u9053\u4e2d\u8fde\u63a5\u6570\u636e\u5e93\u65f6\u51fa\u73b0`AttributeError: ‘mysqlPipeline’ object has no attribute ‘opens_spider’`\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Scrapy \u7ba1\u9053\u4e2d\u8fde\u63a5\u6570\u636e\u5e93\u65f6...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-205413","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=205413"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/205413\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=205413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=205413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=205413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}