{"id":175135,"date":"2024-11-08T03:02:28","date_gmt":"2024-11-07T19:02:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175135\/"},"modified":"2024-11-08T03:02:28","modified_gmt":"2024-11-07T19:02:28","slug":"%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8c%e6%ad%a5%e7%9a%84%e5%ae%9a%e6%99%82%e8%bc%aa%e8%a9%a2%ef%bc%9f-%e5%ae%9a%e6%99%82%e8%bc%aa%e8%a9%a2%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175135\/","title":{"rendered":"\u5982\u4f55\u5be6\u73fe\u6578\u64da\u5eab\u540c\u6b65\u7684\u5b9a\u6642\u8f2a\u8a62\uff1f (\u5b9a\u6642\u8f2a\u8a62\u6578\u64da\u5eab\u540c\u6b65)"},"content":{"rendered":"<h1 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id=\"1-%e7%a2%ba%e5%ae%9a%e5%90%8c%e6%ad%a5%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-vBFwADDDob\">1. \u78ba\u5b9a\u540c\u6b65\u7684\u6578\u64da\u5eab<\/h3>\n<p>\u9996\u5148\uff0c\u9700\u8981\u78ba\u5b9a\u8981\u9032\u884c\u540c\u6b65\u7684\u6578\u64da\u5eab\u3002\u9019\u53ef\u80fd\u662f\u5169\u500b\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u4f8b\u5982 MySQL \u548c PostgreSQL\uff0c\u6216\u8005\u662f\u540c\u4e00\u7cfb\u7d71\u4e2d\u7684\u4e0d\u540c\u5be6\u4f8b\u3002<\/p>\n<h3 id=\"2-%e8%a8%ad%e8%a8%88%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5%e9%82%8f%e8%bc%af-vBFwADDDob\">2. \u8a2d\u8a08\u6578\u64da\u540c\u6b65\u908f\u8f2f<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u9700\u8981\u8a2d\u8a08\u6578\u64da\u540c\u6b65\u7684\u908f\u8f2f\u3002\u9019\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li>\u6aa2\u67e5\u4e3b\u6578\u64da\u5eab\u4e2d\u7684\u8b8a\u66f4\u3002<\/li>\n<li>\u5c07\u8b8a\u66f4\u61c9\u7528\u5230\u5f9e\u6578\u64da\u5eab\u3002<\/li>\n<li>\u8a18\u9304\u540c\u6b65\u7684\u7d50\u679c\uff0c\u4ee5\u4fbf\u65bc\u5f8c\u7e8c\u7684\u6545\u969c\u6392\u67e5\u3002<\/li>\n<\/ul>\n<h3 id=\"3-%e5%af%a6%e7%8f%be%e5%ae%9a%e6%99%82%e4%bb%bb%e5%8b%99-vBFwADDDob\">3. \u5be6\u73fe\u5b9a\u6642\u4efb\u52d9<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u64cd\u4f5c\u7cfb\u7d71\u7684\u8a08\u5283\u4efb\u52d9\u529f\u80fd\uff08\u5982 Linux \u7684 cron\uff09\u4f86\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 cron \u4efb\u52d9\u793a\u4f8b\uff0c\u6bcf\u9694 5 \u5206\u9418\u57f7\u884c\u4e00\u6b21\u6578\u64da\u540c\u6b65\u8173\u672c\uff1a<\/p>\n<pre><code>*\/5 * * * * \/usr\/bin\/python3 \/path\/to\/sync_script.py<\/code><\/pre>\n<h3 id=\"4-%e7%b7%a8%e5%af%ab%e6%95%b8%e6%93%9a%e5%90%8c%e6%ad%a5%e8%85%b3%e6%9c%ac-vBFwADDDob\">4. \u7de8\u5beb\u6578\u64da\u540c\u6b65\u8173\u672c<\/h3>\n<p>\u6578\u64da\u540c\u6b65\u8173\u672c\u7684\u7de8\u5beb\u53d6\u6c7a\u65bc\u6240\u4f7f\u7528\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 Python \u548c MySQL \u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>import mysql.connector\n\ndef sync_databases():\n    # \u9023\u63a5\u5230\u4e3b\u6578\u64da\u5eab\n    source_db = mysql.connector.connect(\n        host=\"source_host\",\n        user=\"source_user\",\n        password=\"source_password\",\n        database=\"source_db\"\n    )\n    \n    # \u9023\u63a5\u5230\u5f9e\u6578\u64da\u5eab\n    target_db = mysql.connector.connect(\n        host=\"target_host\",\n        user=\"target_user\",\n        password=\"target_password\",\n        database=\"target_db\"\n    )\n    \n    source_cursor = source_db.cursor()\n    target_cursor = target_db.cursor()\n    \n    # \u67e5\u8a62\u4e3b\u6578\u64da\u5eab\u4e2d\u7684\u8b8a\u66f4\n    source_cursor.execute(\"SELECT * FROM your_table WHERE synced = 0\")\n    rows = source_cursor.fetchall()\n    \n    for row in rows:\n        # \u5c07\u8b8a\u66f4\u63d2\u5165\u5230\u5f9e\u6578\u64da\u5eab\n        target_cursor.execute(\"INSERT INTO your_table (column1, column2) VALUES (%s, %s)\", (row[1], row[2]))\n        \n        # \u66f4\u65b0\u4e3b\u6578\u64da\u5eab\u4e2d\u7684\u8a18\u9304\n        source_cursor.execute(\"UPDATE your_table SET synced = 1 WHERE id = %s\", (row[0],))\n    \n    target_db.commit()\n    source_db.commit()\n    \n    source_cursor.close()\n    target_cursor.close()\n    source_db.close()\n    target_db.close()\n\nif __name__ == \"__main__\":\n    sync_databases()\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-vBFwADDDob\">\u7e3d\u7d50<\/h2>\n<p>\u5b9a\u6642\u8f2a\u8a62\u6578\u64da\u5eab\u540c\u6b65\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6578\u64da\u7ba1\u7406\u7b56\u7565\uff0c\u80fd\u5920\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u3002\u901a\u904e\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\u548c\u7de8\u5beb\u76f8\u61c9\u7684\u540c\u6b65\u8173\u672c\uff0c\u4f01\u696d\u53ef\u4ee5\u8f15\u9b06\u5be6\u73fe\u6578\u64da\u7684\u5b9a\u671f\u66f4\u65b0\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u53ef\u7528\u6027\u548c\u6578\u64da\u4fdd\u8b77\u7684\u61c9\u7528\u4f86\u8aaa\uff0c\u9019\u7a2e\u65b9\u6cd5\u5c24\u70ba\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u540c\u6b65\u9700\u6c42\uff0cServer.HK 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