{"id":200629,"date":"2025-05-06T11:43:55","date_gmt":"2025-05-06T03:43:55","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200629\/"},"modified":"2025-05-06T11:43:55","modified_gmt":"2025-05-06T03:43:55","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8flask%e8%af%bb%e5%8f%96mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e4%b8%ad%e7%9a%84%e5%9b%be%e7%89%87%e5%b9%b6%e8%bf%94%e5%9b%9e%e7%bb%99%e5%89%8d%e7%ab%af%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200629\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528Flask\u8bfb\u53d6MySQL\u6570\u636e\u5e93\u4e2d\u7684\u56fe\u7247\u5e76\u8fd4\u56de\u7ed9\u524d\u7aef\uff1f"},"content":{"rendered":"

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

\u5982\u4f55\u4f7f\u7528Flask\u8bfb\u53d6MySQL\u6570\u636e\u5e93\u4e2d\u7684\u56fe\u7247\u5e76\u8fd4\u56de\u7ed9\u524d\u7aef\uff1f<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b\u7b49\u7b49\u77e5\u8bc6\u70b9…\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n

<\/p>\n

flask\u8bfb\u53d6mysql\u56fe\u7247\u5e76\u8fd4\u56de\u524d\u7aef<\/strong><\/p>\n

\u95ee\u9898\uff1a<\/strong> \u5982\u4f55\u4f7f\u7528flask\u8bfb\u53d6mysql\u6570\u636e\u5e93\u4e2d\u7684\u56fe\u7247\u5e76\u5c06\u5176\u8fd4\u56de\u7ed9\u524d\u7aef\uff1f\u9700\u8981\u8003\u8651\u524d\u7aef\u8bf7\u6c42\u7684\u65b9\u5f0f\u548c\u670d\u52a1\u5668\u7684\u8fd4\u56de\u683c\u5f0f\u3002<\/p>\n

\u56de\u7b54\uff1a<\/strong><\/p>\n

    \n
  1. \n

    \u8bfb\u53d6\u6570\u636e\u5e93\u56fe\u7247\uff1a<\/strong><\/p>\n

      \n
    • \u4f7f\u7528sql\u8bed\u53e5select image_data from table_name where id=?\u8bfb\u53d6\u5b58\u50a8\u5728\u6570\u636e\u5e93\u4e2d\u7684\u56fe\u7247\u6570\u636e\u3002<\/li>\n
    • image_data\u8868\u793a\u56fe\u7247\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u3002<\/li>\n<\/ul>\n<\/li>\n
    • \n

      \u51c6\u5907\u524d\u7aef\u8bf7\u6c42\uff1a<\/strong><\/p>\n

        \n
      • \u5728\u524d\u7aef\uff0c\u4f7f\u7528post\u6216get\u8bf7\u6c42\u53d1\u9001\u56fe\u50cfid\u6216url\u3002<\/li>\n<\/ul>\n<\/li>\n
      • \n

        \u670d\u52a1\u5668\u5904\u7406\uff1a<\/strong><\/p>\n

          \n
        • \u5728flask\u670d\u52a1\u5668\u7aef\uff0c\u4f7f\u7528execute_query()\u65b9\u6cd5\u8bfb\u53d6\u56fe\u50cf\u6570\u636e\u5e76\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u683c\u5f0f\u3002<\/li>\n
        • \n

          \u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n

          image_bytes = MySql_t2.execute_query(sq1)\n\nif image_bytes == None:\n   raise Exception('...')<\/pre>\n<\/li>\n
        • \u5c06\u56fe\u50cf\u4e8c\u8fdb\u5236\u6570\u636e\u4f5c\u4e3asend_file()\u51fd\u6570\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u8fd4\u56de\u3002<\/li>\n
        • mime_type\u53c2\u6570\u6307\u5b9a\u56fe\u50cf\u7684mime\u7c7b\u578b\uff08\u4f8b\u5982\uff0cimage\/jpeg\uff09\u3002<\/li>\n<\/ul>\n<\/li>\n
        • \n
          \u5ba2\u6237\u7aef\u63a5\u6536\u5904\u7406\uff1a<\/strong><\/p>\n
            \n
          • \u524d\u7aef\u901a\u8fc7content-type\u6807\u5934\u63a5\u6536\u56fe\u7247\u6570\u636e\u3002<\/li>\n
          • \u5c06\u4e8c\u8fdb\u5236\u6570\u636e\u89e3\u7801\u4e3a\u56fe\u50cf\u683c\u5f0f\u5e76\u663e\u793a\u5b83\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
            \u6ce8\u610f\uff1a<\/strong><\/p>\n
              \n
            • mysql_t2.execute_query()\u65b9\u6cd5\u7684\u8fd4\u56de\u503c\u662f\u5305\u542b\u67e5\u8be2\u7ed3\u679c\u5143\u7ec4\uff0c\u56e0\u6b64\u9700\u8981\u63d0\u53d6\u5143\u7d20\u3002<\/li>\n
            • \u786e\u4fdd\u4ee3\u7801\u7f16\u5199\u5668\u63d0\u4f9b\u9002\u5f53\u7684\u7c7b\u578b\u6ce8\u91ca\uff0c\u4ee5\u907f\u514d\u9519\u8bef\u3002<\/li>\n<\/ul>\n
              \u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u4f7f\u7528Flask\u8bfb\u53d6MySQL\u6570\u636e\u5e93\u4e2d\u7684\u56fe\u7247\u5e76\u8fd4\u56de\u7ed9\u524d\u7aef\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n
              \n
              \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
              \u5982\u4f55\u4f7f\u7528Flask\u8bfb\u53d6MySQL...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200629","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200629","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=200629"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200629\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}