{"id":201291,"date":"2025-05-10T08:29:37","date_gmt":"2025-05-10T00:29:37","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201291\/"},"modified":"2025-05-10T08:29:37","modified_gmt":"2025-05-10T00:29:37","slug":"redis%e9%ab%98%e5%b9%b6%e5%8f%91%e5%9c%ba%e6%99%af%e4%b8%8b%e7%a7%92%e6%9d%80%e8%b6%85%e5%8d%96%e8%a7%a3%e5%86%b3%e6%96%b9%e6%a1%88%e7%a7%92%e6%9d%80%e5%9c%ba%e6%99%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201291\/","title":{"rendered":"Redis\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u79d2\u6740\u8d85\u5356\u89e3\u51b3\u65b9\u6848(\u79d2\u6740\u573a\u666f)"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>Redis\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u79d2\u6740\u8d85\u5356\u89e3\u51b3\u65b9\u6848(\u79d2\u6740\u573a\u666f)<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u5728\u6570\u636e\u5e93\u5b9e\u6218\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u4e00\u4e9b\u8fd9\u6837\u90a3\u6837\u7684\u95ee\u9898\uff0c\u7136\u540e\u8981\u5361\u597d\u534a\u5929\uff0c\u7b49\u95ee\u9898\u89e3\u51b3\u4e86\u624d\u53d1\u73b0\u539f\u6765\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u662f\u6ca1\u6709\u638c\u63e1\u597d\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u5c31\u6574\u7406\u5206\u4eab\u300aRedis\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u79d2\u6740\u8d85\u5356\u89e3\u51b3\u65b9\u6848(\u79d2\u6740\u573a\u666f)\u300b\uff0c\u804a\u804aRedis\u9ad8\u5e76\u53d1\u3001\u79d2\u6740\uff0c\u5e0c\u671b\u53ef\u4ee5\u5e2e\u52a9\u5230\u6b63\u5728\u52aa\u529b\u8d5a\u94b1\u7684\u4f60\u3002<\/p>\n<h2>1 \u4ec0\u4e48\u662f\u79d2\u6740<\/h2>\n<p>\u79d2\u6740\u6700\u76f4\u89c2\u7684\u5b9a\u4e49\uff1a<strong>\u5728\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u800c\u4e0b\u5355\u67d0\u4e00\u4e2a\u5546\u54c1\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u53eb\u79d2\u6740<\/strong><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364563b14bbd1207f.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u3010\u79d2\u6740\u573a\u666f\u3011<\/strong><\/p>\n<ul>\n<li>\u706b\u8f66\u7968\u62a2\u7968<\/li>\n<li>\u53cc\u5341\u4e00\u9650\u8d2d\u5546\u54c1<\/li>\n<li>\u70ed\u5ea6\u9ad8\u7684\u660e\u661f\u6f14\u5531\u4f1a\u95e8\u7968<\/li>\n<li>\u2026<\/li>\n<\/ul>\n<h2>2 \u4e3a\u4ec0\u4e48\u8981\u9632\u6b62\u8d85\u5356<\/h2>\n<p>\u65e9\u8d77\u768412306\u8d2d\u7968\uff0c\u521a\u88ab\u5f00\u53d1\u51fa\u6765\u4f7f\u7528\u7684\u65f6\u5019\uff0c12306\u4f1a\u7ecf\u5e38\u51fa\u73b0 <strong>\u8d85\u5356<\/strong> \u8fd9\u79cd\u73b0\u8c61\uff0c\u4e5f\u5c31\u662f\u8bf4\u8f66\u7968\u53ea\u526910\u5f20\u4e86\uff0c\u5374\u88ab20\u4e2a\u4eba\u4e70\u5230\u4e86\uff0c\u8fd9\u79cd\u73b0\u8c61\u5c31\u662f\u8d85\u5356\uff01<\/p>\n<p>\u8fd8\u6709\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u8bf4\u6ca1\u6709\u4e00\u5b9a\u7684\u4fdd\u62a4\u63aa\u65bd\uff0c\u7cfb\u7edf\u4f1a\u88ab\u8fd9\u79cd\u9ad8\u6d41\u91cf\u9020\u6210<strong>\u5b95\u673a<\/strong><\/p>\n<ul>\n<li>\u5e93\u5b58100\u4ef6 \u4f60\u5356\u4e861000\u4ef6 \u7b49\u7740\u4e8f\u94b1\u5427\uff01<\/li>\n<li>\u9632\u6b62\u9ed1\u5ba2<\/li>\n<li>\u5047\u5982\u6211\u4eec\u7f51\u7ad9\u60f3\u4e0b\u53d1\u4f18\u60e0\u7ed9\u7fa4\u4f17\uff0c\u4f46\u662f\u88ab\u9ed1\u5ba2\u5229\u7528\u6280\u672f\u5c06\u4e0b\u53d1\u7ed9\u7fa4\u4f17\u7684\u5229\u76ca\u6536\u5165\u56ca\u4e2d<\/li>\n<li>\u4fdd\u8bc1\u7528\u6237\u4f53\u9a8c<\/li>\n<li>\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\uff0c\u7f51\u9875\u4e0d\u80fd\u6253\u4e0d\u5f00\u3001\u8ba2\u5355\u4e0d\u80fd\u652f\u4ed8 \u8981\u4fdd\u8bc1\u7f51\u7ad9\u7684\u4f7f\u7528\uff01<\/li>\n<\/ul>\n<h2>3 \u5355\u4f53\u67b6\u6784\u5e38\u89c4\u79d2\u6740<\/h2>\n<h3>3.1 \u5e38\u89c4\u51cf\u5e93\u5b58\u4ee3\u7801<\/h3>\n<pre>\/**\n * @Author oldlu\n *\/\n@Service\n@Transactional  \/\/\u63a7\u5236\u4e8b\u52a1\npublic class OrderServiceImpl implements OrderService {\n\n    @Autowired\n    private StockMapper stockMapper;\n\n    private OrderMapper orderMapper;\n\n    \/\/\u5728\u975e\u5e76\u53d1\u60c5\u51b5\u4e0b\u65e0\u95ee\u9898\n    @Override\n    public Integer kill(Integer id) {\n        \/\/\u6839\u636e\u5546\u54c1id\u6821\u9a8c\u5e93\u5b58\u662f\u5426\u8fd8\u5b58\u5728\n        Stock stock = stockMapper.checkStock(id);\n        \/\/\u5f53\u5df2\u552e\u548c\u5e93\u5b58\u76f8\u7b49\u5c31\u5e93\u5b58\u4e0d\u8db3\u4e86\n        if(stock.getSale().equals(stock.getCount())){\n            throw new RuntimeException(\"\u5e93\u5b58\u4e0d\u8db3!\");\n        }else{\n            \/\/\u6263\u9664\u5e93\u5b58  (\u5df2\u552e\u6570\u91cf+1)\n            stock.setSale(stock.getSale()+1);\n            stockMapper.updateSale(stock);   \/\/\u66f4\u65b0\u4fe1\u606f\n            \/\/\u521b\u5efa\u8ba2\u5355\n            Order order = new Order();\n            order.setSid(stock.getId()).setName(stock.getName()).setCreateDate(new Date());\n            orderMapper.createOrder(order); \/\/\u521b\u5efa\u8ba2\u5355\n            return order.getId();   \/\/mybatis\u4e3b\u952e\u751f\u6210\u7b56\u7565 \u76f4\u63a5\u8fd4\u56de\u521b\u5efa\u7684id\n        }\n    }\n}\n<\/pre>\n<p>\u6d4b\u8bd5controller<\/p>\n<pre>\/**\n * @Author oldlu\n *\/\n@RestController\n@RequestMapping(\"\/stock\")\npublic class StockController {\n    @Autowired\n    private OrderService orderService;\n    \/\/\u5f00\u53d1\u79d2\u6740\u65b9\u6cd5\n    @GetMapping(\"\/kill\/{id}\")\n    public String kill(@PathVariable(\"id\") Integer id){\n        System.out.println(\"\u79d2\u6740\u5546\u54c1\u7684ID=====================&gt;\"+id);\n        try {\n            \/\/\u6839\u636e\u79d2\u6740\u5546\u54c1id\u8c03\u7528\u79d2\u6740\u4e1a\u52a1\n            Integer orderId = orderService.kill(id);\n            return \"\u79d2\u6740\u6210\u529f,\u8ba2\u5355ID\u4e3a\uff1a\"+String.valueOf(orderId);\n        }catch (Exception e){\n            e.printStackTrace();\n            return e.getMessage();\n        }\n    }\n}\n<\/pre>\n<p>\u6b63\u5e38\u60c5\u51b5\u770b\u4e0d\u4f1a\u6709\u4ec0\u4e48\u95ee\u9898,\u5c31\u662f\u4f60\u8bbf\u95ee\u4e00\u4e0b\u5e93\u5b58\u5c11\u4e00\u4e2a<\/p>\n<h3>3.2 \u6a21\u62df\u9ad8\u5e76\u53d1<\/h3>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364563b14bbd735ce.png\" class=\"aligncenter\"><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364563b14bbdd4d73.png\" class=\"aligncenter\"><\/p>\n<h3>3.3 \u8d85\u5356\u73b0\u8c61<\/h3>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364663b14bbe41476.png\" class=\"aligncenter\"><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364663b14bbea7b74.png\" class=\"aligncenter\"><\/p>\n<h3>3.4 \u5206\u6790\u539f\u56e0<\/h3>\n<p>\u7ebf\u7a0b\u4e0d\u5b89\u5168,\u65b9\u6cd5\u5c31\u662f\u52a0\u9501,\u5355\u673a\u7b80\u5355\u52a0\u9501\u5373\u53ef\u89e3\u51b3,\u5982\u679c\u662f\u5206\u5e03\u5f0f\u96c6\u7fa4\u6a21\u5f0f\u642d\u5efa\u90a3\u5c31\u8981\u8003\u8651\u5206\u5e03\u5f0f\u9501<\/p>\n<h2>4 \u7b80\u5355\u5b9e\u73b0\u60b2\u89c2\u4e50\u89c2\u9501\u89e3\u51b3\u5355\u4f53\u67b6\u6784\u8d85\u5356<\/h2>\n<h3>4.1 \u60b2\u89c2\u9501<\/h3>\n<pre>\/**\n * @Author oldlu\n *\/\n@RestController\n@RequestMapping(\"\/stock\")\npublic class StockController {\n\n    @Autowired\n    private OrderService orderService;\n\n    \/\/\u5f00\u53d1\u79d2\u6740\u65b9\u6cd5\n    @GetMapping(\"\/kill\/{id}\")\n    public String kill(@PathVariable(\"id\") Integer id){\n        System.out.println(\"\u79d2\u6740\u5546\u54c1\u7684ID=====================&gt;\"+id);\n        try {\n            \/\/\u4f7f\u7528\u60b2\u89c2\u9501\n            synchronized (this){\n                \/\/\u6839\u636e\u79d2\u6740\u5546\u54c1id\u8c03\u7528\u79d2\u6740\u4e1a\u52a1\n                Integer orderId = orderService.kill(id);\n                return \"\u79d2\u6740\u6210\u529f,\u8ba2\u5355ID\u4e3a\uff1a\"+String.valueOf(orderId);\n            }\n        }catch (Exception e){\n            e.printStackTrace();\n            return e.getMessage();\n        }\n    }\n\n}\n<\/pre>\n<p>\u8fd9\u6837\u6548\u7387\u5f88\u5dee<strong>\u4f1a\u9020\u6210\u7ebf\u7a0b\u963b\u585e\uff0c\u7ebf\u7a0b\u6392\u961f\u95ee\u9898<\/strong>,\u5bf9\u7528\u6237\u7684\u4f53\u9a8c\u4e0d\u662f\u5f88\u597d,\u5fc5\u987b\u5904\u7406\u5b8c\u4e00\u4e2a\u624d\u80fd\u7ee7\u7eed.<\/p>\n<h3>4.2 \u4e50\u89c2\u9501<\/h3>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364763b14bbf13616.png\" class=\"aligncenter\"><\/p>\n<pre>    \/**\n     * \u6263\u9664\u5e93\u5b58\n     * @param stock\n     *\/\n    public void updateSale(Stock stock){\n        \/\/\u6263\u9664\u5e93\u5b58  (\u5df2\u552e\u6570\u91cf+1)\n        stock.setSale(stock.getSale()+1);\n        stockMapper.updateSale(stock);   \/\/\u66f4\u65b0\u4fe1\u606f\n    }\n\n\/**\n * \u6263\u9664\u5e93\u5b58\n * @param stock\n *\/\npublic void updateSale(Stock stock){\n    \/\/\u5728sql\u5c42\u9762\u5b8c\u6210\u9500\u91cf+1 \u548c \u7248\u672c\u53f7 +1 \u5e76\u4e14\u6839\u636e\u5546\u54c1id\u548c\u7248\u672c\u53f7\u540c\u65f6\u67e5\u8be2\u66f4\u65b0\u7684\u5546\u54c1\n    Integer updRows = stockMapper.updateSale(stock);   \/\/\u66f4\u65b0\u4fe1\u606f\n    if(updRows == 0){   \/\/\u4ee3\u8868\u6ca1\u6709\u62ff\u5230\u7248\u672c\u53f7\n        throw new RuntimeException(\"\u62a2\u8d2d\u5931\u8d25,\u8bf7\u91cd\u8bd5\uff01\");\n    }\n}\n<\/pre>\n<p>\u4e5f\u5c31\u662f\u6ca1\u66f4\u65b0\u6210\u529f\u8bf4\u660e\u5df2\u7ecf\u79d2\u6740\u5b8c\u4e86, \u76f8\u5bf9\u60b2\u89c2\u9501\u800c\u8a00\u4e50\u89c2\u9501\u4fdd\u8bc1\u4e86\u4e00\u5b9a\u7684\u6548\u7387\uff0c\u800c\u4e0d\u50cf\u60b2\u89c2\u9501\u90a3\u6837\u4f1a\u9020\u6210\u7ebf\u7a0b\u963b\u585e\u4f7f\u7528\u4e50\u89c2\u9501\u9700\u8981\u4f7f\u7528\u7248\u672c\u53f7\uff0c\u5728\u64cd\u4f5c\u6570\u636e\u7684\u65f6\u5019\u8981\u5bf9\u7248\u672c\u53f7\u8fdb\u884c\u66f4\u65b0<\/p>\n<h3>4.3 redis\u9501setnx<\/h3>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364763b14bbf6d717.jpg\" class=\"aligncenter\"><\/p>\n<p>\u4f46\u662f\u4e0a\u8ff0\u4ee3\u7801\u5728\u9ad8\u5e76\u53d1\uff0c\u53ef\u80fd\u5176\u4ed6\u7ebf\u7a0b\u4f1a\u91ca\u653e\u522b\u4eba\u7684\u9501<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364763b14bbfcc51e.jpg\" class=\"aligncenter\"><\/p>\n<h3>4.4 \u4f7f\u7528Redision<\/h3>\n<p><code>https:\/\/github.com\/redisson\/redisson<\/code><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364863b14bc031768.jpg\" class=\"aligncenter\"><\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20230101\/167256364863b14bc08f160.jpg\" class=\"aligncenter\"><\/p>\n<h2>5 \u5206\u5e03\u5f0f\u9501\u7684\u89e3\u51b3\u65b9\u6848<\/h2>\n<p>\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u89e3\u51b3\u65b9\u6848<\/p>\n<h2>6 \u91c7\u7528\u7f13\u5b58\u961f\u5217\u9632\u6b62\u8d85\u5356<\/h2>\n<p>\u9ad8\u5e76\u53d1\u7f13\u5b58\u961f\u5217\u9632\u6b62\u6ea2\u51fa\u89e3\u51b3\u65b9\u6848<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Redis\u9ad8\u5e76\u53d1\u573a\u666f\u4e0b\u79d2\u6740\u8d85\u5356\u89e3&#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":[101],"tags":[],"class_list":["post-201291","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201291","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=201291"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201291\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}