{"id":201317,"date":"2025-05-10T09:53:56","date_gmt":"2025-05-10T01:53:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201317\/"},"modified":"2025-05-10T09:53:56","modified_gmt":"2025-05-10T01:53:56","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87redis%e5%87%8f%e5%ba%93%e5%ad%98%e7%9a%84%e7%a7%92%e6%9d%80%e5%9c%ba%e6%99%af%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201317\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7redis\u51cf\u5e93\u5b58\u7684\u79d2\u6740\u573a\u666f\u5b9e\u73b0"},"content":{"rendered":"

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

\u5982\u4f55\u901a\u8fc7redis\u51cf\u5e93\u5b58\u7684\u79d2\u6740\u573a\u666f\u5b9e\u73b0<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6765\u5230golang\u5b66\u4e60\u7f51\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60\u6570\u636e\u5e93\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300a\u5982\u4f55\u901a\u8fc7redis\u51cf\u5e93\u5b58\u7684\u79d2\u6740\u573a\u666f\u5b9e\u73b0\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0bredis\u51cf\u5e93\u5b58\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n

Redis\u6263\u5e93\u5b58\uff0c\u4e3b\u8981\u76ee\u7684\u662f\u51cf\u5c11\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\uff0c\u4e4b\u524d\u7684\u51cf\u5e93\u5b58\uff0c\u76f4\u63a5\u8bbf\u95ee\u6570\u636e\u5e93\uff0c\u8bfb\u53d6\u5e93\u5b58\uff0c\u5f53\u9ad8\u5e76\u53d1\u8bf7\u6c42\u5230\u6765\u7684\u65f6\u5019\uff0c\u5927\u91cf\u7684\u8bfb\u53d6\u6570\u636e\u6709\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6570\u636e\u5e93\u7684\u5d29\u6e83\u3002<\/p>\n

\u5927\u5bb6\u53ef\u4ee5\u5148\u8bfb\u4e00\u4e0b\u300a\u79d2\u6740\u7cfb\u7edf\u8bbe\u8ba1\u300b\u5bf9\u6574\u4f53\u7684\u79d2\u6740\u6d41\u7a0b\u6709\u4e2a\u4e86\u89e3\u4e4b\u540e\uff0c\u5728\u6765\u8bfb\u4e00\u4e0b\u8fd9\u7bc7\u6587\u7ae0\u3002<\/p>\n

\u672c\u6587\u53ea\u662f\u89e3\u51b3\u79d2\u6740\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u573a\u666f\u5373\u6570\u636e\u9884\u52a0\u8f7d\uff0c\u5373\u628a\u5e93\u5b58\u6570\u636e\u4e8b\u5148\u52a0\u8f7d\u5230\u7f13\u5b58\uff0c\u7136\u540e\u901a\u8fc7\u7f13\u5b58\u6765\u66f4\u65b0\u5e93\u5b58\u3002<\/p>\n

\u4f7f\u7528\u601d\u8def\uff1a<\/h2>\n
    \n
  • \u7cfb\u7edf\u521d\u59cb\u5316\u7684\u65f6\u5019\uff0c\u5c06\u5546\u54c1\u5e93\u5b58\u52a0\u8f7d\u5230Redis \u7f13\u5b58\u4e2d\u4fdd\u5b58\u3002<\/li>\n
  • \u6536\u5230\u8bf7\u6c42\u7684\u65f6\u5019,\u5148\u5728Redis\u4e2d\u62ff\u5230\u8be5\u5546\u54c1\u7684\u5e93\u5b58\u503c\uff0c\u8fdb\u884c\u5e93\u5b58\u9884\u51cf\uff0c\u5982\u679c\u51cf\u5b8c\u4e4b\u540e\u5e93\u5b58\u4e0d\u8db3\uff0c\u76f4\u63a5\u8fd4\u56de\u903b\u8f91Exception\u5c31\u4e0d\u9700\u8981\u8bbf\u95ee\u6570\u636e\u5e93\u518d\u53bb\u51cf\u5e93\u5b58\u4e86\uff0c\u5982\u679c\u5e93\u5b58\u503c\u6b63\u786e\uff0c\u8fdb\u884c\u4e0b\u4e00\u6b65\u3002<\/li>\n
  • \u5c06\u8bf7\u6c42\u5165\u961f\uff0c\u7acb\u5373\u7ed9\u524d\u7aef\u8fd4\u56de\u4e00\u4e2a\u503c\uff0c\u8868\u793a\u6b63\u5728\u6392\u961f\u4e2d\uff0c\u7136\u540e\u8fdb\u884c\u79d2\u6740\u903b\u8f91\uff0c\u540e\u7aef\u961f\u5217\u8fdb\u884c\u79d2\u6740\u903b\u8f91\uff0c\u524d\u7aef\u8f6e\u8be2\u540e\u7aef\u53d1\u6765\u7684\u8bf7\u6c42\uff0c\u5982\u679c\u79d2\u6740\u6210\u529f\uff0c\u8fd4\u56de\u79d2\u6740\uff0c\u6210\u529f\uff0c\u4e0d\u6210\u529f\u5c31\u8fd4\u56de\u5931\u8d25\u3002<\/li>\n<\/ul>\n

    \u7b2c\u4e00\u6b65\uff1a\u7cfb\u7edf\u521d\u59cb\u5316\u540e\u5c31\u5c06\u6240\u6709\u5546\u54c1\u5e93\u5b58\u653e\u5165\u7f13\u5b58<\/h2>\n
    \/**\n * \u79d2\u6740\u63a5\u53e3\u4f18\u5316\u4e4b---   \u7b2c\u4e00\u6b65:  \u7cfb\u7edf\u521d\u59cb\u5316\u540e\u5c31\u5c06\u6240\u6709\u5546\u54c1\u5e93\u5b58\u653e\u5165 \u7f13\u5b58\n *\/\n@Override\npublic void afterPropertiesSet() throws Exception {\n    List\n   \n     goods = goodsService.getGoodsList();\n    if (goods == null) {\n        return;\n    }\n    for (GoodsVo goodsVo : goods) {\n        redisService.set(GoodsKey.getId(), goodsVo.getStockCount());\n        isOverMap.put(goodsVo.getId(), false);\/\/\u5148\u521d\u59cb\u5316 \u6bcf\u4e2a\u5546\u54c1\u90fd\u662ffalse \u5c31\u662f\u8fd8\u6709\n    }\n}\n   <\/pre>\n
    \u7b2c\u4e8c\u6b65\uff1a \u9884\u51cf\u5e93\u5b58\u4ece\u7f13\u5b58\u4e2d\u51cf\u5e93\u5b58<\/h2>\n
    \/**\u79d2\u6740\u63a5\u53e3\u4f18\u5316\u4e4b ----\u7b2c\u4e8c\u6b65\uff1a \u9884\u51cf\u5e93\u5b58 \u4ece\u7f13\u5b58\u4e2d\u51cf\u5e93\u5b58\n * \u5229\u7528 redis \u4e2d\u7684\u65b9\u6cd5\uff0c\u51cf\u53bb\u5e93\u5b58\uff0c\u8fd4\u56de\u503c\u4e3a \u51cf\u53bb1 \u4e4b\u540e\u7684\u503c\n * *\/\nlong stock = redisService.decr(GoodsKey.getGoodsStock, \"\" + goodsId);\n\/*\u8fd9\u91cc\u5224\u65ad\u4e0d\u80fd\u5c0f\u4e8e\u7b49\u4e8e\uff0c\u56e0\u4e3a\u51cf\u53bb\u4e4b\u540e\u7b49\u4e8e \u8bf4\u660e\u8fd8\u6709\u662f\u6b63\u5e38\u8303\u56f4*\/\nif (stock \n
    \u6574\u4f53\u7684\u903b\u8f91\u5982\u4e0b\uff1a<\/p>\n
    1.\u5148\u5c06\u6240\u6709\u6570\u636e\u8bfb\u51fa\u6765\uff0c\u521d\u59cb\u5316\u5230\u7f13\u5b58\u4e2d\uff0c\u5e76\u4ee5 stock + goodid \u7684\u5f62\u6210\u5b58\u5165Redis\u3002<\/p>\n
    2.\u5728\u79d2\u6740\u7684\u65f6\u5019\uff0c\u5148\u8fdb\u884c\u9884\u51cf\u5e93\u5b58\u68c0\u6d4b\uff0c\u4eceredis\u4e2d\uff0c\u5229\u7528decr \u51cf\u53bb\u5bf9\u5e94\u5546\u54c1\u7684\u5e93\u5b58\uff0c\u5982\u679c\u5e93\u5b58\u5c0f\u4e8e0\uff0c\u8bf4\u660e\u6b64\u65f6 \u5e93\u5b58\u4e0d\u8db3\uff0c\u5219\u4e0d\u9700\u8981\u8bbf\u95ee\u6570\u636e\u5e93\u3002\u76f4\u63a5\u629b\u51fa\u5f02\u5e38\u5373\u53ef\u3002
    \u6211\u4eec\u4e0a\u9762\u8fd8\u4f7f\u7528\u5230\u4e86isOverMap\uff0c\u8fd9\u4e2a\u662f\u5185\u5b58\u6807\u8bb0\u3002<\/p>\n
    \u5185\u5b58\u6807\u8bb0<\/h2>\n
    \u7531\u4e8e\u63a5\u53e3\u4f18\u5316\u5f88\u591a\u57fa\u4e8eRedis\u7684\u7f13\u5b58\u64cd\u4f5c\uff0c\u5f53\u5e76\u53d1\u5f88\u9ad8\u7684\u65f6\u5019\uff0c\u4e5f\u4f1a\u7ed9Redis\u670d\u52a1\u5668\u5e26\u6765\u5f88\u5927\u7684\u8d1f\u62c5\uff0c\u5982\u679c\u53ef\u4ee5\u51cf\u5c11\u5bf9Redis\u670d\u52a1\u5668\u7684\u8bbf\u95ee\uff0c\u4e5f\u53ef\u4ee5\u8fbe\u5230\u7684\u4f18\u5316\u7684\u6548\u679c\u3002<\/p>\n
    \u4e8e\u662f\uff0c\u53ef\u4ee5\u52a0\u4e00\u4e2a\u5185\u5b58map,\u6807\u8bb0\u5bf9\u5e94\u5546\u54c1\u7684\u5e93\u5b58\u91cf\u662f\u5426\u8fd8\u6709\uff0c\u5728\u8bbf\u95eeRedis\u4e4b\u524d\uff0c\u5728map\u4e2d\u62ff\u5230\u5bf9\u5e94\u5546\u54c1\u7684\u5e93\u5b58\u91cf\u6807\u8bb0\uff0c\u5c31\u53ef\u4ee5\u4e0d\u9700\u8981\u8bbf\u95eeRedis \u5c31\u53ef\u4ee5\u5224\u65ad\u6ca1\u6709\u5e93\u5b58\u4e86\u3002<\/p>\n
    1.\u751f\u6210\u4e00\u4e2amap\uff0c\u5e76\u5728\u521d\u59cb\u5316\u7684\u65f6\u5019\uff0c\u5c06\u6240\u6709\u5546\u54c1\u7684id\u4e3a\u952e\uff0c\u6807\u8bb0false \u5b58\u5165map\u4e2d\u3002<\/p>\n
    private Map\n    \n      isOverMap = new HashMap\n     \n      (); \/** * \u79d2\u6740\u63a5\u53e3\u4f18\u5316\u4e4b--- \u7b2c\u4e00\u6b65: \u7cfb\u7edf\u521d\u59cb\u5316\u540e\u5c31\u5c06\u6240\u6709\u5546\u54c1\u5e93\u5b58\u653e\u5165 \u7f13\u5b58 *\/ @Override public void afterPropertiesSet() throws Exception { List\n      \n        goods = goodsService.getGoodsList(); if (goods == null) { return; } for (GoodsVo goodsVo : goods) { redisService.set(GoodsKey.getGoodsStock, \"\" + goodsVo.getId(), goodsVo.getStockCount()); isOverMap.put(goodsVo.getId(), false);\/\/\u5148\u521d\u59cb\u5316 \u6bcf\u4e2a\u5546\u54c1\u90fd\u662ffalse \u5c31\u662f\u8fd8\u6709 } } \n      \n     \n    <\/pre>\n
    \/**\u518d\u4f18\u5316\uff1a \u4f18\u5316 \u5e93\u5b58\u4e4b\u540e\u7684\u8bf7\u6c42\u4e0d\u8bbf\u95eeredis \u901a\u8fc7\u5224\u65ad \u5bf9\u5e94 map \u7684\u503c\n  * *\/\nboolean isOver = isOverMap.get(goodsId);\nif (isOver) {\n     return Result.error(CodeMsg.MIAO_SHA_NO_STOCK);\n}\n\nif (stock \n
    2.\u5728\u9884\u51cf\u5e93\u5b58\u4e4b\u524d\uff0c\u4ecemap\u4e2d\u53d6\u6807\u8bb0\uff0c\u82e5\u6807\u8bb0\u4e3afalse,\u8bf4\u660e\u5e93\u5b58<\/p>\n
    3.\u9884\u51cf\u5e93\u5b58\uff0c\u5f53\u9047\u5230\u5e93\u5b58\u4e0d\u8db3\u7684\u65f6\u5019\uff0c\u5c06\u8be5\u5546\u54c1\u7684\u6807\u8bb0\u7f6e\u4e3atrue,\u8868\u793a\u8be5\u5546\u54c1\u7684\u5e93\u5b58\u4e0d\u8db3\u3002\u8fd9\u6837\uff0c\u4e0b\u9762\u7684\u6240\u6709\u8bf7\u6c42\uff0c\u5c06\u88ab\u62e6\u622a\uff0c\u65e0\u9700\u8bbf\u95eeredis\u8fdb\u884c\u9884\u51cf\u5e93\u5b58\u3002<\/p>\n
    \u6240\u4ee5\u5229\u7528\u7f13\u5b58\u7684\u6574\u4f53\u601d\u8def\u5982\u4e0b\uff1a<\/p>\n
    \u5c06\u5546\u54c1\u7684\u5e93\u5b58\u6570\u636e\u52a0\u8f7d\u81f3\u5185\u5b58\uff0c\u540c\u65f6\u521d\u59cb\u5316\u5185\u5b58\u6807\u8bb0\uff0c\u5373\u628a\u6bcf\u4e2a\u4ea7\u54c1\u7684id\u5b58\u653e\u81f3map\uff0c\u90fd\u662f\u521d\u59cb\u5316\u4e3afalse\uff0c\u5728\u6bcf\u6b21\u9700\u8981\u6267\u884c\u79d2\u6740\u903b\u8f91\u4e4b\u524d\uff0c\u5728\u5728\u5185\u5b58\u6807\u8bb0\u4e2d\u53d6\u503c\uff0c\u5982\u679c\u4ecd\u6709\u5e93\u5b58\u5373map\u91cc\u8fd4\u56de\u7684\u4e3afalse,\u5219 \u6267\u884c\u79d2\u6740\u903b\u8f91\uff0c\u5426\u5219\u76f4\u63a5\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n
    \u540c\u65f6\u6263\u51cf\u5e93\u5b58\u65f6\uff0c\u9700\u8981\u5224\u65ad\u7f13\u5b58\u4e2d\u7684\u5e93\u5b58\u6570\u91cf\u662f\u5426\u4ecd\u7136\u5927\u4e8e0\uff0c\u5982\u679c\u5c0f\u4e8e\u7b49\u4e8e0\uff0c\u4fee\u6539\u5185\u5b58\u6807\u8bb0\u3002<\/p>\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
    \u5982\u4f55\u901a\u8fc7redis\u51cf\u5e93\u5b58\u7684\u79d2\u6740\u573a...<\/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-201317","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201317","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=201317"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201317\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}