{"id":98,"date":"2026-01-09T09:56:05","date_gmt":"2026-01-09T01:56:05","guid":{"rendered":"http:\/\/wp.buildyou.top\/?p=98"},"modified":"2026-01-09T09:56:07","modified_gmt":"2026-01-09T01:56:07","slug":"%e7%9b%96%e4%bc%8a%e7%a6%8f%e5%85%8b%e6%96%af%e5%8d%9a%e5%ae%a2%e6%8e%92%e5%ba%8f%e5%8a%9f%e8%83%bd%e6%b7%b1%e5%ba%a6%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/wp.buildyou.top\/index.php\/2026\/01\/09\/%e7%9b%96%e4%bc%8a%e7%a6%8f%e5%85%8b%e6%96%af%e5%8d%9a%e5%ae%a2%e6%8e%92%e5%ba%8f%e5%8a%9f%e8%83%bd%e6%b7%b1%e5%ba%a6%e5%88%86%e6%9e%90\/","title":{"rendered":"Stream API+Comparator\uff1aTradeOrder \u591a\u7ef4\u5ea6\u6392\u5e8f\u7684\u5b8c\u6574\u4ee3\u7801\u5b9e\u73b0"},"content":{"rendered":"\n
List<TradeOrder> templateIdToTradeOrderList\uff1b\nTradeOrder\u6709\u5b57\u6bb5    private Long assetNo;\n    private Date expireTime;\uff08\u4e0eAssetInfo\u7684expireTime\u662f\u4e00\u4e2a\uff09\nList<AssetInfo> assetInfoList;\u6709\u5b57\u6bb5\n     private Long assetNo;\n    private Date expireTime;\n        private String orderNo;\n    \n  Map<String, Integer> collect\uff1bkey\u662forderNo\u3002\n  <\/code><\/pre>\n\n\n\n
\u6709\u4e2a\u529f\u80fd\uff0c\u5bf9templateIdToTradeOrderList\u6392\u5e8f\uff0c\u5148\u6309expireTime\u5012\u5e8f\uff0c\u540e\u6309collect\u7684value\u503c\u5012\u5e8f<\/p>\n\n\n\n
\u5728\u5bf9templateIdToTradeOrderList\u8fdb\u884c\u6392\u5e8f\u4e4b\u524d\uff0c\u6211\u4eec\u9700\u8981\u4e86\u89e3\u6392\u5e8f\u7684\u80cc\u666f\u548c\u76ee\u7684\u3002\u6392\u5e8f\u4e0d\u4ec5\u53ef\u4ee5\u63d0\u9ad8\u6570\u636e\u7684\u53ef\u8bfb\u6027\uff0c\u8fd8\u80fd\u4f18\u5316\u540e\u7eed\u7684\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u3002<\/p>\n\n\n\n
\u603b\u7ed3\u6765\u8bf4\uff0c\u901a\u8fc7\u5408\u7406\u7684\u6392\u5e8f\u7b56\u7565\u548c\u9ad8\u6548\u7684\u5b9e\u73b0\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u786e\u4fdd\u4ea4\u6613\u8ba2\u5355\u7684\u6392\u5e8f\u65e2\u5feb\u901f\u53c8\u51c6\u786e\uff0c\u4ece\u800c\u63d0\u9ad8\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n\n\n\n
\u4f8b\u5982\uff0c\u5728\u7535\u5546\u5e73\u53f0\u4e0a\uff0c\u7528\u6237\u901a\u5e38\u5e0c\u671b\u770b\u5230\u6700\u6709\u4ef7\u503c\u6216\u8005\u5373\u5c06\u5230\u671f\u7684\u5546\u54c1\uff0c\u6392\u5e8f\u529f\u80fd\u56e0\u6b64\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n\n\n\n
\u5728\u5904\u7406\u5927\u91cf\u4ea4\u6613\u8ba2\u5355\u65f6\uff0c\u4fdd\u8bc1\u6392\u5e8f\u7684\u6027\u80fd\u548c\u51c6\u786e\u6027\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u8fd9\u91cc\uff0c\u6211\u4eec\u5c06\u63a2\u7d22\u5982\u4f55\u9ad8\u6548\u5730\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u3002<\/p>\n\n\n\n
\u5728\u5b9e\u73b0\u6392\u5e8f\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5f15\u5165\u66f4\u591a\u7684\u53c2\u6570\u6765\u4f18\u5316\u6392\u5e8f\u6761\u4ef6\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u8003\u8651\u6dfb\u52a0\u5546\u54c1\u7684\u9500\u91cf\u3001\u8bc4\u4ef7\u7b49\u6307\u6807\uff0c\u4f7f\u6392\u5e8f\u7ed3\u679c\u66f4\u52a0\u7b26\u5408\u7528\u6237\u9884\u671f\u3002<\/p>\n\n\n\n
\u8981\u5b9e\u73b0\u8fd9\u4e2a\u6392\u5e8f\u9700\u6c42\uff0c\u6838\u5fc3\u6311\u6218\u5728\u4e8e TradeOrder<\/code> \u5bf9\u8c61\u672c\u8eab\u6ca1\u6709 orderNo<\/code> \u5b57\u6bb5<\/strong>\uff0c\u56e0\u6b64\u65e0\u6cd5\u76f4\u63a5\u4ece collect<\/code> Map \u4e2d\u83b7\u53d6\u6392\u5e8f\u6240\u9700\u7684\u6743\u91cd\u503c\u3002<\/p>\n\n\n\n
\u6211\u4eec\u9700\u8981\u901a\u8fc7 assetInfoList<\/code> \u4f5c\u4e3a\u201c\u6865\u6881\u201d\uff0c\u5efa\u7acb assetNo<\/code> \u5230\u6392\u5e8f\u6743\u91cd\u7684\u6620\u5c04\u3002<\/p>\n\n\n\n
\u5728Java\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528Stream API\u6765\u9ad8\u6548\u5730\u5904\u7406\u548c\u6392\u5e8f\u6570\u636e\u3002\u901a\u8fc7\u6d41\u7684\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9e\u73b0\u66f4\u4e3a\u7b80\u6d01\u548c\u6613\u8bfb\u7684\u4ee3\u7801\u3002<\/p>\n\n\n\n
\u4f18\u5316\u5b9e\u73b0\u65b9\u6848<\/h3>\n\n\n\n
\u5728\u5904\u7406\u6392\u5e8f\u7684\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u591a\u7ea7\u6392\u5e8f\u7684\u9700\u6c42\uff0c\u4f8b\u5982\u5148\u6309\u8fc7\u671f\u65f6\u95f4\u6392\u5e8f\uff0c\u518d\u6309\u6743\u91cd\u6392\u5e8f\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5408\u7406\u7684\u6bd4\u8f83\u5668\u8bbe\u8ba1\u5c31\u663e\u5f97\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n\n\n\n
\u5b9e\u73b0\u6392\u5e8f\u529f\u80fd\u7684\u65b9\u6848\u53ef\u4ee5\u5206\u4e3a\u591a\u4e2a\u6b65\u9aa4\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u6536\u96c6\u6240\u6709\u5f85\u6392\u5e8f\u7684\u6570\u636e\uff0c\u5e76\u51c6\u5907\u597d\u6392\u5e8f\u7684\u89c4\u5219\u548c\u6761\u4ef6\u3002<\/p>\n\n\n\n
Java<\/p>\n\n\n\n
\/\/ 1. \u9884\u5904\u7406\uff1a\u5efa\u7acb assetNo -> orderNo \u7684\u6620\u5c04\nMap<Long, String> assetNoToOrderNoMap = assetInfoList.stream()\n        .collect(Collectors.toMap(AssetInfo::getAssetNo, AssetInfo::getOrderNo, (v1, v2) -> v1));\n\n\/\/ 2. \u5b9a\u4e49\u6392\u5e8f\u89c4\u5219\nComparator<TradeOrder> tradeOrderComparator = Comparator\n        \/\/ \u7b2c\u4e00\u4f18\u5148\u7ea7\uff1aexpireTime \u5012\u5e8f (null \u653e\u6700\u540e)\n        .comparing(TradeOrder::getExpireTime, Comparator.nullsLast(Comparator.reverseOrder()))\n        \/\/ \u7b2c\u4e8c\u4f18\u5148\u7ea7\uff1a\u6839\u636e orderNo \u5bf9\u5e94\u7684 collect value \u5012\u5e8f\n        .thenComparing(order -> {\n            String orderNo = assetNoToOrderNoMap.get(order.getAssetNo());\n            \/\/ \u5982\u679c\u627e\u4e0d\u5230 orderNo \u6216\u8005 collect \u91cc\u6ca1\u503c\uff0c\u9ed8\u8ba4\u6743\u91cd\u4e3a 0\n            return collect.getOrDefault(orderNo, 0);\n        }, Comparator.reverseOrder());\n\n\/\/ 3. \u6267\u884c\u6392\u5e8f\ntemplateIdToTradeOrderList.sort(tradeOrderComparator);\n<\/code><\/pre>\n\n\n\n
\n\n\n\n
\u6b64\u5916\uff0c\u6392\u5e8f\u540e\u7ed3\u679c\u7684\u9a8c\u8bc1\u4e5f\u662f\u4e0d\u53ef\u5ffd\u89c6\u7684\u73af\u8282\u3002\u6211\u4eec\u9700\u8981\u901a\u8fc7\u6d4b\u8bd5\u7528\u4f8b\u6765\u4fdd\u8bc1\u6392\u5e8f\u7684\u6b63\u786e\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n
\ud83d\udca1 \u5173\u952e\u70b9\u89e3\u6790<\/h3>\n\n\n\n
1. \u4e3a\u4ec0\u4e48\u5148\u5efa assetNoToOrderNoMap<\/code>\uff1f<\/h4>\n\n\n\n
\u5728\u6392\u5e8f\u8fc7\u7a0b\u4e2d\uff0cComparator<\/code> \u4f1a\u88ab\u8c03\u7528 $O(N \\log N)$ \u6b21\u3002\u5982\u679c\u5728\u6392\u5e8f\u95ed\u5305\u91cc\u53bb\u904d\u5386 assetInfoList<\/code> \u67e5\u627e orderNo<\/code>\uff0c\u6027\u80fd\u4f1a\u6781\u5dee\uff08\u53d8\u6210 $O(N^2)$\uff09\u3002\u4f7f\u7528 HashMap<\/code> \u53ef\u4ee5\u5c06\u5355\u6b21\u67e5\u627e\u5f00\u9500\u964d\u4e3a $O(1)$\u3002<\/p>\n\n\n\n
2. \u5904\u7406\u201c\u8de8\u5bf9\u8c61\u201d\u6392\u5e8f<\/h4>\n\n\n\n
\u7531\u4e8e\u6392\u5e8f\u4f9d\u636e\uff08collect<\/code> \u4e2d\u7684\u503c\uff09\u4e0d\u5728 TradeOrder<\/code> \u5bf9\u8c61\u91cc\uff0c\u6211\u4eec\u901a\u8fc7 order -> { ... }<\/code> \u8fd9\u79cd\u81ea\u5b9a\u4e49\u63d0\u53d6\u5668\uff0c\u52a8\u6001\u5730\u6839\u636e\u5f53\u524d\u8ba2\u5355\u7684 assetNo<\/code> \u53bb\u627e\u5b83\u7684 orderNo<\/code>\uff0c\u518d\u4ece collect<\/code> \u91cc\u53d6\u6743\u91cd\u3002<\/p>\n\n\n\n
3. \u6392\u5e8f\u65b9\u5411\u8bf4\u660e<\/h4>\n\n\n\n
    \n
  • Comparator.reverseOrder()<\/code>\uff1a\u5b9e\u73b0\u5012\u5e8f<\/strong>\uff08\u4ece\u5927\u5230\u5c0f\uff0c\u6216\u4ece\u665a\u5230\u65e9\uff09\u3002<\/li>\n\n\n\n
  • Comparator.nullsLast(...)<\/code>\uff1a\u5982\u679c expireTime<\/code> \u4e3a\u7a7a\uff0c\u5c06\u5176\u6392\u5728\u6700\u540e\uff0c\u907f\u514d\u7a7a\u6307\u9488\u5f02\u5e38\u4e14\u7b26\u5408\u4e1a\u52a1\u903b\u8f91\u3002<\/li>\n<\/ul>\n\n\n\n
    4. \u6027\u80fd\u4f18\u5316\u5efa\u8bae<\/h4>\n\n\n\n
    \u5b9e\u4f8b\u6f14\u793a\u5c06\u8fdb\u4e00\u6b65\u5e2e\u52a9\u6211\u4eec\u7406\u89e3\u5982\u4f55\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\u5b9e\u73b0\u8fd9\u4e9b\u6392\u5e8f\u903b\u8f91\u3002\u901a\u8fc7\u5b9e\u9645\u6570\u636e\u7684\u64cd\u4f5c\uff0c\u6211\u4eec\u53ef\u4ee5\u6e05\u6670\u5730\u770b\u5230\u6392\u5e8f\u5e26\u6765\u7684\u53d8\u5316\u3002<\/p>\n\n\n\n
    \u5982\u679c assetInfoList<\/code> \u975e\u5e38\u5927\uff0c\u4e14 templateIdToTradeOrderList<\/code> \u91cc\u7684 assetNo<\/code> \u53ea\u662f\u5176\u5b50\u96c6\uff0c\u53ef\u4ee5\u5728\u751f\u6210 Map \u65f6\u52a0\u4e00\u4e2a\u8fc7\u6ee4\uff1a<\/p>\n\n\n\n
    Java<\/p>\n\n\n\n
    Set<Long> needAssetNos = templateIdToTradeOrderList.stream()\n        .map(TradeOrder::getAssetNo)\n        .collect(Collectors.toSet());\n\nMap<Long, String> assetNoToOrderNoMap = assetInfoList.stream()\n        .filter(a -> needAssetNos.contains(a.getAssetNo())) \/\/ \u53ea\u5904\u7406\u9700\u8981\u7684\u8d44\u4ea7\n        .collect(Collectors.toMap(AssetInfo::getAssetNo, AssetInfo::getOrderNo, (v1, v2) -> v1));\n<\/code><\/pre>\n\n\n\n
    \ud83e\uddea \u7ed3\u679c\u9a8c\u8bc1\u793a\u4f8b<\/h3>\n\n\n\n
    \u5047\u8bbe\u6570\u636e\u5982\u4e0b\uff1a<\/p>\n\n\n\n
      \n
    • Order A<\/strong>: expireTime<\/code> = 2025-01-01, collect<\/code> \u6743\u91cd = 100<\/li>\n\n\n\n
    • Order B<\/strong>: expireTime<\/code> = 2025-05-01, collect<\/code> \u6743\u91cd = 50<\/li>\n\n\n\n
    • Order C<\/strong>: expireTime<\/code> = 2025-05-01, collect<\/code> \u6743\u91cd = 80<\/li>\n<\/ul>\n\n\n\n
      \u6392\u5e8f\u540e\u987a\u5e8f\uff1a<\/strong><\/p>\n\n\n\n
        \n
      1. Order C<\/strong>\uff1aexpireTime<\/code> \u6700\u665a\uff085\u6708\uff09\uff0c\u4e14\u5728\u540c\u4e3a5\u6708\u7684 B \u548c C \u4e2d\uff0c\u5b83\u7684\u6743\u91cd\uff0880\uff09\u66f4\u9ad8\u3002<\/li>\n\n\n\n
      2. Order B<\/strong>\uff1aexpireTime<\/code> \u6700\u665a\uff085\u6708\uff09\uff0c\u6743\u91cd 50\u3002<\/li>\n\n\n\n
      3. Order A<\/strong>\uff1aexpireTime<\/code> \u6700\u65e9\uff081\u6708\uff09\u3002<\/li>\n<\/ol>\n\n\n\n
          \u589e\u52a0\u96be\u5ea6\uff0c\u52a0\u5165TradeOrder\u53ea\u6709assetNo\u5b57\u6bb5\u6ca1\u6709expireTime\u5b57\u6bb5\uff0c\u8fd8\u80fd\u5b9e\u73b0\u6211\u7684\u8981\u6c42\u5417<\/p>\n\n\n\n
        \u5f53\u7136\u53ef\u4ee5\u5b9e\u73b0\u3002\u8fd9\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\u975e\u5e38\u5e38\u89c1\uff1a\u6392\u5e8f\u4f9d\u8d56\u7684\u7ef4\u5ea6\u4e0d\u5728\u4e3b\u5bf9\u8c61\u91cc\uff0c\u800c\u5728\u5173\u8054\u5bf9\u8c61\u91cc\u3002<\/strong><\/p>\n\n\n\n
        \u4e3a\u4e86\u4f7f\u4ee3\u7801\u66f4\u52a0\u5065\u58ee\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u8003\u8651\u5f02\u5e38\u5904\u7406\u3002\u5f53\u6570\u636e\u4e0d\u5408\u6cd5\u6216\u8005\u7f3a\u5931\u65f6\uff0c\u5e94\u8be5\u59a5\u5584\u5904\u7406\uff0c\u4ee5\u9632\u6b62\u7a0b\u5e8f\u5d29\u6e83\u3002<\/p>\n\n\n\n
        \u65e2\u7136 TradeOrder<\/code> \u53ea\u6709 assetNo<\/code>\uff0c\u6211\u4eec\u5c31\u9700\u8981\u901a\u8fc7 assetNo<\/code> \u8fd9\u4e00\u7ebd\u5e26\uff0c\u628a AssetInfo<\/code> \u4e2d\u7684 expireTime<\/code> \u548c collect<\/code> \u4e2d\u7684\u6743\u91cd\u5168\u90e8\u62c9\u901a\u3002<\/p>\n\n\n\n
        \u5b9e\u73b0\u65b9\u6848\uff1a\u6784\u5efa\u201c\u6392\u5e8f\u4e0a\u4e0b\u6587\u6620\u5c04\u8868\u201d<\/h3>\n\n\n\n
        \u4e3a\u4e86\u4fdd\u8bc1\u6392\u5e8f\u6027\u80fd\uff08\u907f\u514d\u5728\u6392\u5e8f\u5faa\u73af\u4e2d\u8fdb\u884c $O(N)$ \u7684\u67e5\u627e\uff09\uff0c\u6211\u4eec\u9700\u8981\u9884\u5148\u6784\u5efa\u4e00\u4e2a\u5305\u542b\u6240\u6709\u6392\u5e8f\u7ef4\u5ea6\u7684 Map<Long, SortContext><\/code><\/strong>\u3002<\/p>\n\n\n\n
        \u7b2c\u4e00\u6b65\uff1a\u5b9a\u4e49\u6392\u5e8f\u8f85\u52a9\u7c7b<\/h4>\n\n\n\n
        \uff08\u6216\u8005\u76f4\u63a5\u4f7f\u7528\u4e00\u4e2a Map \u5957 Map\uff0c\u4f46\u5b9a\u4e49\u4e00\u4e2a\u7b80\u5355\u7c7b\u66f4\u6e05\u6670\uff09<\/p>\n\n\n\n
        Java<\/p>\n\n\n\n
        @Data\n@AllArgsConstructor\nclass SortContext {\n    Date expireTime;\n    int weight;\n}\n<\/code><\/pre>\n\n\n\n
        \u7b2c\u4e8c\u6b65\uff1a\u4ee3\u7801\u5b9e\u73b0\u903b\u8f91<\/h4>\n\n\n\n
        Java<\/p>\n\n\n\n
        \/\/ 1. \u9884\u5904\u7406\uff1a\u5c06\u6240\u6709\u8d44\u4ea7\u4fe1\u606f\u8f6c\u5316\u4e3a\u6392\u5e8f\u6743\u91cd\u6620\u5c04\u8868\n\/\/ Map<assetNo, SortContext>\nMap<Long, SortContext> assetSortMap = assetInfoList.stream()\n        .collect(Collectors.toMap(\n                AssetInfo::getAssetNo,\n                info -> {\n                    \/\/ \u4ece\u4f60\u7684 collect \u4e2d\u83b7\u53d6\u6743\u91cd\n                    int weight = collect.getOrDefault(info.getOrderNo(), 0);\n                    return new SortContext(info.getExpireTime(), weight);\n                },\n                (v1, v2) -> v1 \/\/ \u9632\u6b62 assetNo \u91cd\u590d\n        ));\n\n\/\/ 2. \u5b9a\u4e49\u6392\u5e8f\u89c4\u5219\nComparator<TradeOrder> tradeOrderComparator = Comparator\n        .comparing((TradeOrder order) -> {\n            \/\/ \u83b7\u53d6\u8d44\u4ea7\u6392\u5e8f\u4e0a\u4e0b\u6587\uff0c\u5982\u679c\u627e\u4e0d\u5230\uff08\u810f\u6570\u636e\uff09\uff0c\u5219\u7ed9\u4e00\u4e2a\u201c\u6700\u5c0f\u503c\u201d\u5360\u4f4d\n            SortContext ctx = assetSortMap.get(order.getAssetNo());\n            return ctx != null ? ctx.getExpireTime() : null;\n        }, Comparator.nullsLast(Comparator.reverseOrder())) \/\/ \u8fc7\u671f\u65f6\u95f4\u8fdc\uff08\u5927\uff09\u7684\u5728\u524d\n        .thenComparing((TradeOrder order) -> {\n            SortContext ctx = assetSortMap.get(order.getAssetNo());\n            return ctx != null ? ctx.getWeight() : 0;\n        }, Comparator.reverseOrder()); \/\/ \u6743\u91cd\u9ad8\u7684\u5728\u524d\n\n\/\/ 3. \u6267\u884c\u6392\u5e8f\ntemplateIdToTradeOrderList.sort(tradeOrderComparator);\n<\/code><\/pre>\n\n\n\n
        \n\n\n\n
        \ud83d\udca1 \u6df1\u5ea6\u89e3\u6790<\/h3>\n\n\n\n
        1. \u4e3a\u4ec0\u4e48\u4e00\u5b9a\u8981\u505a\u201c\u6570\u636e\u9884\u62c9\u53d6\u201d\uff1f<\/h4>\n\n\n\n
        \u6392\u5e8f\u7b97\u6cd5\uff08\u5982 TimSort<\/code>\uff09\u7684\u5e73\u5747\u590d\u6742\u5ea6\u662f $O(N \\log N)$\u3002<\/p>\n\n\n\n
          \n
        • \u9519\u8bef\u505a\u6cd5<\/strong>\uff1a\u5728 comparing<\/code> \u95ed\u5305\u91cc\u53bb\u904d\u5386 assetInfoList<\/code>\u3002\u8fd9\u4f1a\u5bfc\u81f4\u590d\u6742\u5ea6\u98d9\u5347\u81f3 $O(N^2)$\uff0c\u5f53\u8ba2\u5355\u8d85\u8fc7 1000 \u6761\u65f6\u4f1a\u4ea7\u751f\u660e\u663e\u7684\u6027\u80fd\u5361\u987f\u3002<\/li>\n\n\n\n
        • \u6b63\u786e\u505a\u6cd5<\/strong>\uff1a\u5148\u7528\u4e00\u4e2a\u5faa\u73af\uff08$O(N)$\uff09\u6784\u5efa assetSortMap<\/code>\uff0c\u540e\u7eed\u6392\u5e8f\u65f6\u7684\u67e5\u627e\u5c31\u53d8\u6210\u4e86 $O(1)$\uff0c\u603b\u6027\u80fd\u4f9d\u7136\u4fdd\u6301\u5728 $O(N \\log N)$\u3002<\/li>\n<\/ul>\n\n\n\n
          2. \u5904\u7406\u201c\u6570\u636e\u4e0d\u5bf9\u7b49\u201d<\/h4>\n\n\n\n
          \u5982\u679c TradeOrder<\/code> \u91cc\u7684\u67d0\u4e2a assetNo<\/code> \u5728 assetInfoList<\/code> \u91cc\u6ca1\u627e\u5230\uff08\u6bd4\u5982\u57fa\u7840\u4fe1\u606f\u540c\u6b65\u5ef6\u8fdf\uff09\uff1a<\/p>\n\n\n\n
            \n
          • \u5728 expireTime<\/code> \u7684\u6bd4\u8f83\u4e2d\uff0cComparator.nullsLast<\/code> \u4f1a\u628a\u5b83\u6392\u5728\u6700\u540e\u3002<\/li>\n\n\n\n
          • \u5728\u6743\u91cd\u6bd4\u8f83\u4e2d\uff0cctx != null ? … : 0 \u4f1a\u7ed9\u5b83\u4e00\u4e2a\u6700\u4f4e\u6743\u91cd\u3002\u8fd9\u79cd\u5904\u7406\u65b9\u5f0f\u4fdd\u8bc1\u4e86\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\uff0c\u4e0d\u4f1a\u56e0\u4e3a\u90e8\u5206\u6570\u636e\u7f3a\u5931\u5bfc\u81f4\u6574\u4e2a\u9000\u6b3e\u6d41\u7a0b\u5d29\u6e83\u3002<\/li>\n<\/ul>\n\n\n\n
            \u5982\u679c\u4f60\u89c9\u5f97\u5b9a\u4e49 SortContext<\/code> \u7c7b\u592a\u9ebb\u70e6\uff0c\u53ef\u4ee5\u5229\u7528 Comparator<\/code> \u5f3a\u5927\u7684\u7ec4\u5408\u80fd\u529b\uff0c\u76f4\u63a5\u5199\u6210\uff1a<\/p>\n\n\n\n
            Java<\/p>\n\n\n\n
            \u5728\u6570\u636e\u5904\u7406\u8fc7\u7a0b\u4e2d\uff0c\u201c\u6570\u636e\u9884\u62c9\u53d6\u201d\u662f\u786e\u4fdd\u6392\u5e8f\u7b97\u6cd5\u9ad8\u6548\u6267\u884c\u7684\u5173\u952e\u73af\u8282\u3002\u901a\u8fc7\u63d0\u524d\u83b7\u53d6\u5fc5\u8981\u7684\u6570\u636e\uff0c\u53ef\u4ee5\u663e\u8457\u964d\u4f4e\u56e0\u4fe1\u606f\u4e0d\u5bf9\u79f0\u800c\u5bfc\u81f4\u7684\u5904\u7406\u5ef6\u8fdf\u3002\u6b64\u5916\uff0c\u5f53\u67d0\u4e2a\u8d44\u4ea7\u53f7\u7801\u5728\u8d44\u4ea7\u4fe1\u606f\u5217\u8868\u4e2d\u7f3a\u5931\u65f6\uff0c\u5e94\u53ca\u65f6\u91c7\u53d6\u8865\u6551\u63aa\u65bd\uff0c\u4ee5\u786e\u4fdd\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u4e0e\u53ef\u9760\u6027\u3002\u901a\u8fc7\u4f18\u5316\u6392\u5e8f\u903b\u8f91\uff0c\u5982\u5229\u7528 Comparator \u7684\u7ec4\u5408\u80fd\u529b\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u63d0\u9ad8\u4ee3\u7801\u7684\u7b80\u6d01\u6027\u4e0e\u6267\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u6709\u4e2a\u529f\u80fd\uff0c\u5bf9templateIdToTradeOrderList\u6392\u5e8f\uff0c\u5148\u6309expireTime\u5012\u5e8f\uff0c\u540e\u6309col […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,21],"tags":[22,17],"class_list":["post-98","post","type-post","status-publish","format-standard","hentry","category-18","category-21","tag-22","tag-17"],"_links":{"self":[{"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/posts\/98","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/comments?post=98"}],"version-history":[{"count":4,"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/posts\/98\/revisions"}],"predecessor-version":[{"id":102,"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/posts\/98\/revisions\/102"}],"wp:attachment":[{"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/media?parent=98"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/categories?post=98"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.buildyou.top\/index.php\/wp-json\/wp\/v2\/tags?post=98"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}