{"id":204487,"date":"2025-05-29T13:44:00","date_gmt":"2025-05-29T05:44:00","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204487\/"},"modified":"2025-05-29T13:44:00","modified_gmt":"2025-05-29T05:44:00","slug":"scrapy-%e7%ae%a1%e9%81%93%e4%b8%admysql%e6%95%b0%e6%8d%ae%e5%ba%93%e8%bf%9e%e6%8e%a5%e5%a4%b1%e8%b4%a5%ef%bc%9aattributeerror-nonetype-object-has-no-attribute-execute-%e5%a6%82%e4%bd%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204487\/","title":{"rendered":"Scrapy \u7ba1\u9053\u4e2dMySQL\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25\uff1aAttributeError: &#8216;NoneType&#8217; object has no attribute &#8216;execute&#8217; \u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Scrapy \u7ba1\u9053\u4e2dMySQL\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25\uff1aAttributeError: &#8216;NoneType&#8217; object has no attribute &#8216;execute&#8217; \u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n<p>\u6700\u8fd1\u53d1\u73b0\u4e0d\u5c11\u5c0f\u4f19\u4f34\u90fd\u5bf9\u5f88\u611f\u5174\u8da3\uff0c\u6240\u4ee5\u4eca\u5929\u7ee7\u7eed\u7ed9\u5927\u5bb6\u4ecb\u7ecd<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u77e5\u8bc6\uff0c\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aScrapy \u7ba1\u9053\u4e2dMySQL\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25\uff1aAttributeError: &#8216;NoneType&#8217; object has no attribute &#8216;execute&#8217; \u5982\u4f55\u89e3\u51b3\uff1f\u300b<\/span>\u4e3b\u8981\u5185\u5bb9\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u4f60\uff01\u5f53\u7136\u5982\u679c\u9605\u8bfb\u672c\u6587\u65f6\u5b58\u5728\u4e0d\u540c\u60f3\u6cd5\uff0c\u53ef\u4ee5\u5728\u8bc4\u8bba\u4e2d\u8868\u8fbe\uff0c\u4f46\u662f\u8bf7\u52ff\u4f7f\u7528\u8fc7\u6fc0\u7684\u63aa\u8f9e~<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241108\/1731069224672e052895761.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>scrapy \u7ba1\u9053\u4e2d\u4f7f\u7528 mysql \u6570\u636e\u5e93<\/strong><\/p>\n<p>\u5728\u4f7f\u7528 scrapy \u7ba1\u9053\u5b58\u50a8\u6570\u636e\u5230 mysql \u6570\u636e\u5e93\u65f6\uff0c\u9047\u5230\u9519\u8bef\u7684\u60c5\u51b5\u5e76\u4e0d\u5c11\u89c1\uff0c\u8fd9\u901a\u5e38\u662f\u7531\u6570\u636e\u5e93\u8fde\u63a5\u95ee\u9898\u5f15\u8d77\u7684\u3002\u4e0b\u9762\u5c06\u6839\u636e\u4f60\u7684\u4ee3\u7801\u548c\u9047\u5230\u7684\u9519\u8bef\uff0c\u5206\u6790\u95ee\u9898\u5e76\u7ed9\u51fa\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<p>\u4ee3\u7801\u4e2d\uff0c\u4f60\u5b9a\u4e49\u4e86\u4e24\u4e2a\u7ba1\u9053\uff1aqiubaipropipeline \u548c mysqlpipeline\u3002<\/p>\n<ul>\n<li>qiubaipropipeline \u7528\u4e8e\u5c06\u6570\u636e\u5199\u5165\u6587\u672c\u6587\u4ef6\u3002<\/li>\n<li>mysqlpipeline \u7528\u4e8e\u5c06\u6570\u636e\u5199\u5165 mysql \u6570\u636e\u5e93\u3002<\/li>\n<\/ul>\n<p>\u4f60\u7684\u9519\u8bef\u4fe1\u606f\u663e\u793a\u201cattributeerror: &#8216;nonetype&#8217; object has no attribute &#8216;execute&#8217;\u201d\u3002\u8fd9\u8868\u660e\u5728 mysqlpipeline \u7684 process_item \u65b9\u6cd5\u4e2d\uff0c\u4f60\u5c1d\u8bd5\u4f7f\u7528 self.cursor \u6267\u884c\u67e5\u8be2\uff0c\u4f46 self.cursor \u4e3a\u7a7a\u3002<\/p>\n<p>\u7ecf\u8fc7\u5206\u6790\uff0c\u95ee\u9898\u51fa\u5728 opens_spider \u65b9\u6cd5\u7684\u540d\u5b57\u62fc\u5199\u9519\u8bef\u4e0a\u3002\u5728 scrapy \u4e2d\uff0c\u8be5\u65b9\u6cd5\u7684\u6b63\u786e\u540d\u79f0\u662f open_spider\uff0c\u800c\u4e0d\u662f opens_spider\u3002<\/p>\n<p>\u4fee\u6539\u540e\u7684\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>class 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        self.cursor = self.conn.cursor()\n        try:\n            self.cursor.execute('insert into qiubai values(&amp;quot;%s&amp;quot;,&amp;quot;%s&amp;quot;)' % (item[&amp;quot;author&amp;quot;], item[&amp;quot;content&amp;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<p>\u66f4\u6b63\u4e86 open_spider \u65b9\u6cd5\u7684\u540d\u79f0\u540e\uff0c\u6570\u636e\u5e93\u8fde\u63a5\u5c06\u6b63\u5e38\u5de5\u4f5c\uff0c\u4f60\u5c31\u53ef\u4ee5\u5c06\u6570\u636e\u5b58\u50a8\u5230 mysql \u6570\u636e\u5e93\u4e2d\u4e86\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aScrapy \u7ba1\u9053\u4e2dMySQL\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25\uff1aAttributeError: &#8216;NoneType&#8217; object has no attribute &#8216;execute&#8217; \u5982\u4f55\u89e3\u51b3\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Scrapy \u7ba1\u9053\u4e2dMySQL\u6570&#46;&#46;&#46;<\/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-204487","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204487","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=204487"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204487\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204487"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204487"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}