{"id":5353,"date":"2022-07-30T14:56:38","date_gmt":"2022-07-30T06:56:38","guid":{"rendered":"https:\/\/www.xttblog.com\/?p=5353"},"modified":"2022-07-30T14:56:38","modified_gmt":"2022-07-30T06:56:38","slug":"5-%e7%a7%8d%e9%99%90%e6%b5%81%e7%ae%97%e6%b3%95%ef%bc%8c7-%e7%a7%8d%e9%99%90%e6%b5%81%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=5353","title":{"rendered":"5 \u79cd\u9650\u6d41\u7b97\u6cd5\uff0c7 \u79cd\u9650\u6d41\u65b9\u5f0f"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u524d\u8a00<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u8fd1\u51e0\u5e74\uff0c\u968f\u7740\u5fae\u670d\u52a1\u7684\u6d41\u884c\uff0c\u670d\u52a1\u548c\u670d\u52a1\u4e4b\u95f4\u7684\u4f9d\u8d56\u8d8a\u6765\u8d8a\u5f3a\uff0c\u8c03\u7528\u5173\u7cfb\u8d8a\u6765\u8d8a\u590d\u6742\uff0c\u670d\u52a1\u548c\u670d\u52a1\u4e4b\u95f4\u7684<strong>\u300c\u7a33\u5b9a\u6027\u300d<\/strong>\u8d8a\u6765\u8d8a\u91cd\u8981\u3002\u5728\u9047\u5230\u7a81\u53d1\u7684\u8bf7\u6c42\u91cf\u6fc0\u589e\uff0c\u6076\u610f\u7684\u7528\u6237\u8bbf\u95ee\uff0c\u4ea6\u6216\u8bf7\u6c42\u9891\u7387\u8fc7\u9ad8\u7ed9\u4e0b\u6e38\u670d\u52a1\u5e26\u6765\u8f83\u5927\u538b\u529b\u65f6\uff0c\u6211\u4eec\u5e38\u5e38\u9700\u8981\u901a\u8fc7\u7f13\u5b58\u3001\u9650\u6d41\u3001\u7194\u65ad\u964d\u7ea7\u3001\u8d1f\u8f7d\u5747\u8861\u7b49\u591a\u79cd\u65b9\u5f0f\u4fdd\u8bc1\u670d\u52a1\u7684\u7a33\u5b9a\u6027\u3002\u5176\u4e2d<strong>\u300c\u9650\u6d41\u300d<\/strong>\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u73af\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4ecb\u7ecd<strong>\u300c\u9650\u6d41\u300d<\/strong>\u76f8\u5173\u77e5\u8bc6\uff085 \u79cd\u9650\u6d41\u7b97\u6cd5\uff0c7 \u79cd\u9650\u6d41\u65b9\u5f0f\uff09\u3002\u63a5\u53e3\u7ea7\u6545\u969c\u76844\u79cd\u5e94\u5bf9\u65b9\u6cd5\uff0c\u5206\u522b\u662f\u964d\u7ea7\u3001\u7194\u65ad\u3001\u9650\u6d41\u548c\u6392\u961f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u9650\u6d41<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u9650\u6d41\u300d<\/strong>\u987e\u540d\u601d\u4e49\uff0c\u5c31\u662f\u5bf9\u8bf7\u6c42\u6216\u5e76\u53d1\u6570\u8fdb\u884c\u9650\u5236\uff1b\u901a\u8fc7\u5bf9\u4e00\u4e2a\u65f6\u95f4\u7a97\u53e3\u5185\u7684\u8bf7\u6c42\u91cf\u8fdb\u884c\u9650\u5236\u6765\u4fdd\u969c\u7cfb\u7edf\u7684\u6b63\u5e38\u8fd0\u884c\u3002\u5982\u679c\u6211\u4eec\u7684\u670d\u52a1\u8d44\u6e90\u6709\u9650\u3001\u5904\u7406\u80fd\u529b\u6709\u9650\uff0c\u5c31\u9700\u8981\u5bf9\u8c03\u7528\u6211\u4eec\u670d\u52a1\u7684\u4e0a\u6e38\u8bf7\u6c42\u8fdb\u884c\u9650\u5236\uff0c\u4ee5\u9632\u6b62\u81ea\u8eab\u670d\u52a1\u7531\u4e8e\u8d44\u6e90\u8017\u5c3d\u800c\u505c\u6b62\u670d\u52a1\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u9650\u6d41\u4e2d\u6709\u4e24\u4e2a\u6982\u5ff5\u9700\u8981\u4e86\u89e3\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>\u300c\u9608\u503c\u300d<\/strong>\uff1a\u5728\u4e00\u4e2a\u5355\u4f4d\u65f6\u95f4\u5185\u5141\u8bb8\u7684\u8bf7\u6c42\u91cf\u3002\u5982 QPS \u9650\u5236\u4e3a10\uff0c\u8bf4\u660e 1 \u79d2\u5185\u6700\u591a\u63a5\u53d7 10 \u6b21\u8bf7\u6c42\u3002<\/li><li><strong>\u300c\u62d2\u7edd\u7b56\u7565\u300d<\/strong>\uff1a\u8d85\u8fc7\u9608\u503c\u7684\u8bf7\u6c42\u7684\u62d2\u7edd\u7b56\u7565\uff0c\u5e38\u89c1\u7684\u62d2\u7edd\u7b56\u7565\u6709\u76f4\u63a5\u62d2\u7edd\u3001\u6392\u961f\u7b49\u5f85\u7b49\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5\u300d<\/strong>\u53c8\u53eb<strong>\u300c\u8ba1\u6570\u5668\u7b97\u6cd5\u300d<\/strong>\uff0c\u662f\u4e00\u79cd<strong>\u300c\u7b80\u5355\u300d<\/strong>\u65b9\u4fbf\u7684\u9650\u6d41\u7b97\u6cd5\u3002\u4e3b\u8981\u901a\u8fc7\u4e00\u4e2a\u652f\u6301<strong>\u300c\u539f\u5b50\u64cd\u4f5c\u300d<\/strong>\u7684\u8ba1\u6570\u5668\u6765\u7d2f\u8ba1 1 \u79d2\u5185\u7684\u8bf7\u6c42\u6b21\u6570\uff0c\u5f53 1 \u79d2\u5185\u8ba1\u6570\u8fbe\u5230\u9650\u6d41\u9608\u503c\u65f6\u89e6\u53d1\u62d2\u7edd\u7b56\u7565\u3002\u6bcf\u8fc7 1 \u79d2\uff0c\u8ba1\u6570\u5668\u91cd\u7f6e\u4e3a 0 \u5f00\u59cb\u91cd\u65b0\u8ba1\u6570\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u7801\u5b9e\u73b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u7b80\u5355\u7684\u4ee3\u7801\u5b9e\u73b0\uff0cQPS \u9650\u5236\u4e3a 2\uff0c\u8fd9\u91cc\u7684\u4ee3\u7801\u505a\u4e86\u4e00\u4e9b<strong>\u300c\u4f18\u5316\u300d<\/strong>\uff0c\u5e76\u6ca1\u6709\u5355\u72ec\u5f00\u4e00\u4e2a\u7ebf\u7a0b\u53bb\u6bcf\u9694 1 \u79d2\u91cd\u7f6e\u8ba1\u6570\u5668\uff0c\u800c\u662f\u5728\u6bcf\u6b21\u8c03\u7528\u65f6\u8fdb\u884c\u65f6\u95f4\u95f4\u9694\u8ba1\u7b97\u6765\u786e\u5b9a\u662f\u5426\u5148\u91cd\u7f6e\u8ba1\u6570\u5668\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class RateLimiterSimpleWindow {\n    \/\/ \u9608\u503c\n    private static Integer QPS = 2;\n    \/\/ \u65f6\u95f4\u7a97\u53e3\uff08\u6beb\u79d2\uff09\n    private static long TIME_WINDOWS = 1000;\n    \/\/ \u8ba1\u6570\u5668\n    private static AtomicInteger REQ_COUNT = new AtomicInteger();\n    \n    private static long START_TIME = System.currentTimeMillis();\n\n    public synchronized static boolean tryAcquire() {\n        if ((System.currentTimeMillis() - START_TIME) &gt; TIME_WINDOWS) {\n            REQ_COUNT.set(0);\n            START_TIME = System.currentTimeMillis();\n        }\n        return REQ_COUNT.incrementAndGet() &lt;= QPS;\n    }\n\n    public static void main(String[] args) throws InterruptedException {\n        for (int i = 0; i &lt; 10; i++) {\n            Thread.sleep(250);\n            LocalTime now = LocalTime.now();\n            if (!tryAcquire()) {\n                System.out.println(now + \" \u88ab\u9650\u6d41\");\n            } else {\n                System.out.println(now + \" \u505a\u70b9\u4ec0\u4e48\");\n            }\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>20:53:43.038922 \u505a\u70b9\u4ec0\u4e48\n20:53:43.291435 \u505a\u70b9\u4ec0\u4e48\n20:53:43.543087 \u88ab\u9650\u6d41\n20:53:43.796666 \u505a\u70b9\u4ec0\u4e48\n20:53:44.050855 \u505a\u70b9\u4ec0\u4e48\n20:53:44.303547 \u88ab\u9650\u6d41\n20:53:44.555008 \u88ab\u9650\u6d41\n20:53:44.809083 \u505a\u70b9\u4ec0\u4e48\n20:53:45.063828 \u505a\u70b9\u4ec0\u4e48\n20:53:45.314433 \u88ab\u9650\u6d41<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ece\u8f93\u51fa\u7ed3\u679c\u4e2d\u53ef\u4ee5\u770b\u5230\u5927\u6982\u6bcf\u79d2\u64cd\u4f5c 3 \u6b21\uff0c\u7531\u4e8e\u9650\u5236 QPS \u4e3a 2\uff0c\u6240\u4ee5\u5e73\u5747\u4f1a\u6709\u4e00\u6b21\u88ab\u9650\u6d41\u3002\u770b\u8d77\u6765\u53ef\u4ee5\u4e86\uff0c\u4e0d\u8fc7\u6211\u4eec\u601d\u8003\u4e00\u4e0b\u5c31\u4f1a\u53d1\u73b0\u8fd9\u79cd\u7b80\u5355\u7684\u9650\u6d41\u65b9\u5f0f\u662f\u6709\u95ee\u9898\u7684\uff0c\u867d\u7136\u6211\u4eec\u9650\u5236\u4e86 QPS \u4e3a 2\uff0c\u4f46\u662f\u5f53\u9047\u5230\u65f6\u95f4\u7a97\u53e3\u7684\u4e34\u754c\u7a81\u53d8\u65f6\uff0c\u5982 1s \u4e2d\u7684\u540e 500 ms \u548c\u7b2c 2s \u7684\u524d 500ms \u65f6\uff0c\u867d\u7136\u662f\u52a0\u8d77\u6765\u662f 1s \u65f6\u95f4\uff0c\u5374\u53ef\u4ee5\u88ab\u8bf7\u6c42 4 \u6b21\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2022\/07\/xianliu0.png\" alt=\"\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5\" \/><figcaption>\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b80\u5355\u4fee\u6539\u6d4b\u8bd5\u4ee3\u7801\uff0c\u53ef\u4ee5\u8fdb\u884c\u9a8c\u8bc1\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u5148\u4f11\u7720 400ms\uff0c\u53ef\u4ee5\u66f4\u5feb\u7684\u5230\u8fbe\u65f6\u95f4\u7a97\u53e3\u3002\nThread.sleep(400);\nfor (int i = 0; i &lt; 10; i++) {\n    Thread.sleep(250);\n    if (!tryAcquire()) {\n        System.out.println(\"\u88ab\u9650\u6d41\");\n    } else {\n        System.out.println(\"\u505a\u70b9\u4ec0\u4e48\");\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f97\u5230\u8f93\u51fa\u4e2d\u53ef\u4ee5\u770b\u5230\u8fde\u7eed 4 \u6b21\u8bf7\u6c42\uff0c\u95f4\u9694 250 ms \u6ca1\u6709\u5374\u88ab\u9650\u5236\u3002\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>20:51:17.395087 \u505a\u70b9\u4ec0\u4e48\n20:51:17.653114 \u505a\u70b9\u4ec0\u4e48\n20:51:17.903543 \u505a\u70b9\u4ec0\u4e48\n20:51:18.154104 \u88ab\u9650\u6d41\n20:51:18.405497 \u505a\u70b9\u4ec0\u4e48\n20:51:18.655885 \u505a\u70b9\u4ec0\u4e48\n20:51:18.906177 \u505a\u70b9\u4ec0\u4e48\n20:51:19.158113 \u88ab\u9650\u6d41\n20:51:19.410512 \u505a\u70b9\u4ec0\u4e48\n20:51:19.661629 \u505a\u70b9\u4ec0\u4e48<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6ed1\u52a8\u7a97\u53e3\u7b97\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6211\u4eec\u5df2\u7ecf\u77e5\u9053\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5\u7684\u5b9e\u73b0\u65b9\u5f0f\u4ee5\u53ca\u5b83\u6240\u5b58\u5728\u7684\u95ee\u9898\uff0c\u800c\u6ed1\u52a8\u7a97\u53e3\u7b97\u6cd5\u662f\u5bf9\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5\u7684\u6539\u8fdb\u3002\u65e2\u7136\u56fa\u5b9a\u7a97\u53e3\u7b97\u6cd5\u5728\u9047\u5230\u65f6\u95f4\u7a97\u53e3\u7684\u4e34\u754c\u7a81\u53d8\u65f6\u4f1a\u6709\u95ee\u9898\uff0c\u90a3\u4e48\u6211\u4eec\u5728\u9047\u5230\u4e0b\u4e00\u4e2a\u65f6\u95f4\u7a97\u53e3\u524d\u4e5f\u8c03\u6574\u65f6\u95f4\u7a97\u53e3\u4e0d\u5c31\u53ef\u4ee5\u4e86\u5417\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u6ed1\u52a8\u7a97\u53e3\u7684\u793a\u610f\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2022\/07\/xianliu1.png\" alt=\"\u6ed1\u52a8\u7a97\u53e3\u7b97\u6cd5\" \/><figcaption>\u6ed1\u52a8\u7a97\u53e3\u7b97\u6cd5<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u56fe\u7684\u793a\u4f8b\u4e2d\uff0c\u6bcf 500ms \u6ed1\u52a8\u4e00\u6b21\u7a97\u53e3\uff0c\u53ef\u4ee5\u53d1\u73b0\u7a97\u53e3\u6ed1\u52a8\u7684\u95f4\u9694\u8d8a\u77ed\uff0c\u65f6\u95f4\u7a97\u53e3\u7684\u4e34\u754c\u7a81\u53d8\u95ee\u9898\u53d1\u751f\u7684\u6982\u7387\u4e5f\u5c31\u8d8a\u5c0f\uff0c\u4e0d\u8fc7\u53ea\u8981\u6709\u65f6\u95f4\u7a97\u53e3\u7684\u5b58\u5728\uff0c\u8fd8\u662f\u6709\u53ef\u80fd\u53d1\u751f<strong>\u300c\u65f6\u95f4\u7a97\u53e3\u7684\u4e34\u754c\u7a81\u53d8\u95ee\u9898\u300d<\/strong>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u7801\u5b9e\u73b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u57fa\u4e8e\u4ee5\u4e0a\u6ed1\u52a8\u7a97\u53e3\u601d\u8def\u5b9e\u73b0\u7684\u7b80\u5355\u7684\u6ed1\u52a8\u7a97\u53e3\u9650\u6d41\u5de5\u5177\u7c7b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.time.LocalTime;\nimport java.util.concurrent.atomic.AtomicInteger;\n\n\/**\n * \u6ed1\u52a8\u7a97\u53e3\u9650\u6d41\u5de5\u5177\u7c7b\n *\/\npublic class RateLimiterSlidingWindow {\n    \/**\n     * \u9608\u503c\n     *\/\n    private int qps = 2;\n    \/**\n     * \u65f6\u95f4\u7a97\u53e3\u603b\u5927\u5c0f\uff08\u6beb\u79d2\uff09\n     *\/\n    private long windowSize = 1000;\n    \/**\n     * \u591a\u5c11\u4e2a\u5b50\u7a97\u53e3\n     *\/\n    private Integer windowCount = 10;\n    \/**\n     * \u7a97\u53e3\u5217\u8868\n     *\/\n    private WindowInfo[] windowArray = new WindowInfo[windowCount];\n\n    public RateLimiterSlidingWindow(int qps) {\n        this.qps = qps;\n        long currentTimeMillis = System.currentTimeMillis();\n        for (int i = 0; i &lt; windowArray.length; i++) {\n            windowArray[i] = new WindowInfo(currentTimeMillis, new AtomicInteger(0));\n        }\n    }\n\n    \/**\n     * 1. \u8ba1\u7b97\u5f53\u524d\u65f6\u95f4\u7a97\u53e3\n     * 2. \u66f4\u65b0\u5f53\u524d\u7a97\u53e3\u8ba1\u6570 &amp; \u91cd\u7f6e\u8fc7\u671f\u7a97\u53e3\u8ba1\u6570\n     * 3. \u5f53\u524d QPS \u662f\u5426\u8d85\u8fc7\u9650\u5236\n     *\n     * @return\n     *\/\n    public synchronized boolean tryAcquire() {\n        long currentTimeMillis = System.currentTimeMillis();\n        \/\/ 1. \u8ba1\u7b97\u5f53\u524d\u65f6\u95f4\u7a97\u53e3\n        int currentIndex = (int)(currentTimeMillis % windowSize \/ (windowSize \/ windowCount));\n        \/\/ 2.  \u66f4\u65b0\u5f53\u524d\u7a97\u53e3\u8ba1\u6570 &amp; \u91cd\u7f6e\u8fc7\u671f\u7a97\u53e3\u8ba1\u6570\n        int sum = 0;\n        for (int i = 0; i &lt; windowArray.length; i++) {\n            WindowInfo windowInfo = windowArray[i];\n            if ((currentTimeMillis - windowInfo.getTime()) &gt; windowSize) {\n                windowInfo.getNumber().set(0);\n                windowInfo.setTime(currentTimeMillis);\n            }\n            if (currentIndex == i &amp;&amp; windowInfo.getNumber().get() &lt; qps) {\n                windowInfo.getNumber().incrementAndGet();\n            }\n            sum = sum + windowInfo.getNumber().get();\n        }\n        \/\/ 3. \u5f53\u524d QPS \u662f\u5426\u8d85\u8fc7\u9650\u5236\n        return sum &lt;= qps;\n    }\n\n    private class WindowInfo {\n        \/\/ \u7a97\u53e3\u5f00\u59cb\u65f6\u95f4\n        private Long time;\n        \/\/ \u8ba1\u6570\u5668\n        private AtomicInteger number;\n\n        public WindowInfo(long time, AtomicInteger number) {\n            this.time = time;\n            this.number = number;\n        }\n        \/\/ get...set...\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u6d4b\u8bd5\u7528\u4f8b\uff0c\u8bbe\u7f6e QPS \u4e3a 2,\u6d4b\u8bd5\u6b21\u6570 20 \u6b21\uff0c\u6bcf\u6b21\u95f4\u9694 300 \u6beb\u79d2\uff0c\u9884\u8ba1\u6210\u529f\u6b21\u6570\u5728 12 \u6b21\u5de6\u53f3\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public static void main(String[] args) throws InterruptedException {\n    int qps = 2, count = 20, sleep = 300, success = count * sleep \/ 1000 * qps;\n    System.out.println(String.format(\"\u5f53\u524dQPS\u9650\u5236\u4e3a:%d,\u5f53\u524d\u6d4b\u8bd5\u6b21\u6570:%d,\u95f4\u9694:%dms,\u9884\u8ba1\u6210\u529f\u6b21\u6570:%d\", qps, count, sleep, success));\n    success = 0;\n    RateLimiterSlidingWindow myRateLimiter = new RateLimiterSlidingWindow(qps);\n    for (int i = 0; i &lt; count; i++) {\n        Thread.sleep(sleep);\n        if (myRateLimiter.tryAcquire()) {\n            success++;\n            if (success % qps == 0) {\n                System.out.println(LocalTime.now() + \": success, \");\n            } else {\n                System.out.print(LocalTime.now() + \": success, \");\n            }\n        } else {\n            System.out.println(LocalTime.now() + \": fail\");\n        }\n    }\n    System.out.println();\n    System.out.println(\"\u5b9e\u9645\u6d4b\u8bd5\u6210\u529f\u6b21\u6570:\" + success);\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u6d4b\u8bd5\u7684\u7ed3\u679c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5f53\u524dQPS\u9650\u5236\u4e3a:2,\u5f53\u524d\u6d4b\u8bd5\u6b21\u6570:20,\u95f4\u9694:300ms,\u9884\u8ba1\u6210\u529f\u6b21\u6570:12\n16:04:27.077782: success, 16:04:27.380715: success, \n16:04:27.684244: fail\n16:04:27.989579: success, 16:04:28.293347: success, \n16:04:28.597658: fail\n16:04:28.901688: fail\n16:04:29.205262: success, 16:04:29.507117: success, \n16:04:29.812188: fail\n16:04:30.115316: fail\n16:04:30.420596: success, 16:04:30.725897: success, \n16:04:31.028599: fail\n16:04:31.331047: fail\n16:04:31.634127: success, 16:04:31.939411: success, \n16:04:32.242380: fail\n16:04:32.547626: fail\n16:04:32.847965: success, \n\u5b9e\u9645\u6d4b\u8bd5\u6210\u529f\u6b21\u6570:11<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6ed1\u52a8\u65e5\u5fd7\u7b97\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ed1\u52a8\u65e5\u5fd7\u7b97\u6cd5\u662f\u5b9e\u73b0\u9650\u6d41\u7684\u53e6\u4e00\u79cd\u65b9\u6cd5\uff0c\u8fd9\u79cd\u65b9\u6cd5\u6bd4\u8f83\u7b80\u5355\u3002\u57fa\u672c\u903b\u8f91\u5c31\u662f\u8bb0\u5f55\u4e0b\u6240\u6709\u7684\u8bf7\u6c42\u65f6\u95f4\u70b9\uff0c\u65b0\u8bf7\u6c42\u5230\u6765\u65f6\u5148\u5224\u65ad\u6700\u8fd1\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u8bf7\u6c42\u6570\u91cf\u662f\u5426\u8d85\u8fc7\u6307\u5b9a\u9608\u503c\uff0c\u7531\u6b64\u6765\u786e\u5b9a\u662f\u5426\u8fbe\u5230\u9650\u6d41\uff0c\u8fd9\u79cd\u65b9\u5f0f\u6ca1\u6709\u4e86\u65f6\u95f4\u7a97\u53e3\u7a81\u53d8\u7684\u95ee\u9898\uff0c\u9650\u6d41\u6bd4\u8f83\u51c6\u786e\uff0c\u4f46\u662f\u56e0\u4e3a\u8981\u8bb0\u5f55\u4e0b\u6bcf\u6b21\u8bf7\u6c42\u7684\u65f6\u95f4\u70b9\uff0c\u6240\u4ee5<strong>\u300c\u5360\u7528\u7684\u5185\u5b58\u8f83\u591a\u300d<\/strong>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u7801\u5b9e\u73b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u7b80\u5355\u5b9e\u73b0\u7684 \u4e00\u4e2a\u6ed1\u52a8\u65e5\u5fd7\u7b97\u6cd5\uff0c\u56e0\u4e3a\u6ed1\u52a8\u65e5\u5fd7\u8981\u6bcf\u6b21\u8bf7\u6c42\u5355\u72ec\u5b58\u50a8\u4e00\u6761\u8bb0\u5f55\uff0c\u53ef\u80fd\u5360\u7528\u5185\u5b58\u8fc7\u591a\u3002\u6240\u4ee5\u4e0b\u9762\u8fd9\u4e2a\u5b9e\u73b0\u5176\u5b9e\u4e0d\u7b97\u4e25\u8c28\u7684\u6ed1\u52a8\u65e5\u5fd7\uff0c\u66f4\u50cf\u4e00\u4e2a\u628a 1 \u79d2\u65f6\u95f4\u5207\u5206\u6210 1000 \u4e2a\u65f6\u95f4\u7a97\u53e3\u7684\u6ed1\u52a8\u7a97\u53e3\u7b97\u6cd5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import java.time.LocalTime;\nimport java.util.HashSet;\nimport java.util.Set;\nimport java.util.TreeMap;\n\n\/**\n * \u6ed1\u52a8\u65e5\u5fd7\u65b9\u5f0f\u9650\u6d41\n * \u8bbe\u7f6e QPS \u4e3a 2\n *\/\npublic class RateLimiterSildingLog {\n\n    \/**\n     * \u9608\u503c\n     *\/\n    private Integer qps = 2;\n    \/**\n     * \u8bb0\u5f55\u8bf7\u6c42\u7684\u65f6\u95f4\u6233,\u548c\u6570\u91cf\n     *\/\n    private TreeMap&lt;Long, Long&gt; treeMap = new TreeMap&lt;&gt;();\n\n    \/**\n     * \u6e05\u7406\u8bf7\u6c42\u8bb0\u5f55\u95f4\u9694, 60 \u79d2\n     *\/\n    private long claerTime = 60 * 1000;\n\n    public RateLimiterSildingLog(Integer qps) {\n        this.qps = qps;\n    }\n\n    public synchronized boolean tryAcquire() {\n        long now = System.currentTimeMillis();\n        \/\/ \u6e05\u7406\u8fc7\u671f\u7684\u6570\u636e\u8001\u6570\u636e\uff0c\u6700\u957f 60 \u79d2\u6e05\u7406\u4e00\u6b21\n        if (!treeMap.isEmpty() &amp;&amp; (treeMap.firstKey() - now) &gt; claerTime) {\n            Set&lt;Long&gt; keySet = new HashSet&lt;&gt;(treeMap.subMap(0L, now - 1000).keySet());\n            for (Long key : keySet) {\n                treeMap.remove(key);\n            }\n        }\n        \/\/ \u8ba1\u7b97\u5f53\u524d\u8bf7\u6c42\u6b21\u6570\n        int sum = 0;\n        for (Long value : treeMap.subMap(now - 1000, now).values()) {\n            sum += value;\n        }\n        \/\/ \u8d85\u8fc7QPS\u9650\u5236\uff0c\u76f4\u63a5\u8fd4\u56de false\n        if (sum + 1 &gt; qps) {\n            return false;\n        }\n        \/\/ \u8bb0\u5f55\u672c\u6b21\u8bf7\u6c42\n        if (treeMap.containsKey(now)) {\n            treeMap.compute(now, (k, v) -&gt; v + 1);\n        } else {\n            treeMap.put(now, 1L);\n        }\n        return sum &lt;= qps;\n    }\n\n    public static void main(String[] args) throws InterruptedException {\n        RateLimiterSildingLog rateLimiterSildingLog = new RateLimiterSildingLog(3);\n        for (int i = 0; i &lt; 10; i++) {\n            Thread.sleep(250);\n            LocalTime now = LocalTime.now();\n            if (rateLimiterSildingLog.tryAcquire()) {\n                System.out.println(now + \" \u505a\u70b9\u4ec0\u4e48\");\n            } else {\n                System.out.println(now + \" \u88ab\u9650\u6d41\");\n            }\n        }\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7801\u4e2d\u628a\u9608\u503c QPS \u8bbe\u5b9a\u4e3a 3\uff0c\u8fd0\u884c\u53ef\u4ee5\u5f97\u5230\u5982\u4e0b\u65e5\u5fd7\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>20:51:17.395087 \u505a\u70b9\u4ec0\u4e48\n20:51:17.653114 \u505a\u70b9\u4ec0\u4e48\n20:51:17.903543 \u505a\u70b9\u4ec0\u4e48\n20:51:18.154104 \u88ab\u9650\u6d41\n20:51:18.405497 \u505a\u70b9\u4ec0\u4e48\n20:51:18.655885 \u505a\u70b9\u4ec0\u4e48\n20:51:18.906177 \u505a\u70b9\u4ec0\u4e48\n20:51:19.158113 \u88ab\u9650\u6d41\n20:51:19.410512 \u505a\u70b9\u4ec0\u4e48\n20:51:19.661629 \u505a\u70b9\u4ec0\u4e48<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u6f0f\u6876\u7b97\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6f0f\u6876\u7b97\u6cd5\u4e2d\u7684\u6f0f\u6876\u662f\u4e00\u4e2a\u5f62\u8c61\u7684\u6bd4\u55bb\uff0c\u8fd9\u91cc\u53ef\u4ee5\u7528\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6a21\u5f0f\u8fdb\u884c\u8bf4\u660e\uff0c\u8bf7\u6c42\u662f\u4e00\u4e2a\u751f\u4ea7\u8005\uff0c\u6bcf\u4e00\u4e2a\u8bf7\u6c42\u90fd\u5982\u4e00\u6ef4\u6c34\uff0c\u8bf7\u6c42\u5230\u6765\u540e\u653e\u5230\u4e00\u4e2a\u961f\u5217\uff08\u6f0f\u6876\uff09\u4e2d\uff0c\u800c\u6876\u5e95\u6709\u4e00\u4e2a\u5b54\uff0c\u4e0d\u65ad\u7684\u6f0f\u51fa\u6c34\u6ef4\uff0c\u5c31\u5982\u6d88\u8d39\u8005\u4e0d\u65ad\u7684\u5728\u6d88\u8d39\u961f\u5217\u4e2d\u7684\u5185\u5bb9\uff0c\u6d88\u8d39\u7684\u901f\u7387\uff08\u6f0f\u51fa\u7684\u901f\u5ea6\uff09\u7b49\u4e8e\u9650\u6d41\u9608\u503c\u3002\u5373\u5047\u5982 QPS \u4e3a 2\uff0c\u5219\u6bcf <code>1s \/ 2= 500ms<\/code> \u6d88\u8d39\u4e00\u6b21\u3002\u6f0f\u6876\u7684\u6876\u6709\u5927\u5c0f\uff0c\u5c31\u5982\u961f\u5217\u7684\u5bb9\u91cf\uff0c\u5f53\u8bf7\u6c42\u5806\u79ef\u8d85\u8fc7\u6307\u5b9a\u5bb9\u91cf\u65f6\uff0c\u4f1a\u89e6\u53d1\u62d2\u7edd\u7b56\u7565\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u6f0f\u6876\u7b97\u6cd5\u7684\u793a\u610f\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2022\/07\/xianliu2.png\" alt=\"\u6f0f\u6876\u7b97\u6cd5\" \/><figcaption>\u6f0f\u6876\u7b97\u6cd5<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u7531\u4ecb\u7ecd\u53ef\u4ee5\u77e5\u9053\uff0c\u6f0f\u6876\u6a21\u5f0f\u4e2d\u7684\u6d88\u8d39\u5904\u7406\u603b\u662f\u80fd\u4ee5\u6052\u5b9a\u7684\u901f\u5ea6\u8fdb\u884c\uff0c\u53ef\u4ee5\u5f88\u597d\u7684<strong>\u300c\u4fdd\u62a4\u81ea\u8eab\u7cfb\u7edf\u300d<\/strong>\u4e0d\u88ab\u7a81\u5982\u5176\u6765\u7684\u6d41\u91cf\u51b2\u57ae\uff1b\u4f46\u662f\u8fd9\u4e5f\u662f\u6f0f\u6876\u6a21\u5f0f\u7684\u7f3a\u70b9\uff0c\u5047\u8bbe QPS \u4e3a 2\uff0c\u540c\u65f6 2 \u4e2a\u8bf7\u6c42\u8fdb\u6765\uff0c2 \u4e2a\u8bf7\u6c42\u5e76\u4e0d\u80fd\u540c\u65f6\u8fdb\u884c\u5904\u7406\u54cd\u5e94\uff0c\u56e0\u4e3a\u6bcf <code>1s \/ 2= 500ms<\/code> \u53ea\u80fd\u5904\u7406\u4e00\u4e2a\u8bf7\u6c42\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ee4\u724c\u6876\u7b97\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee4\u724c\u6876\u7b97\u6cd5\u540c\u6837\u662f\u5b9e\u73b0\u9650\u6d41\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u601d\u8def\uff0c\u6700\u4e3a\u5e38\u7528\u7684 Google \u7684 Java \u5f00\u53d1\u5de5\u5177\u5305 Guava \u4e2d\u7684\u9650\u6d41\u5de5\u5177\u7c7b RateLimiter \u5c31\u662f\u4ee4\u724c\u6876\u7684\u4e00\u4e2a\u5b9e\u73b0\u3002\u4ee4\u724c\u6876\u7684\u5b9e\u73b0\u601d\u8def\u7c7b\u4f3c\u4e8e\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7cfb\u7edf\u670d\u52a1\u4f5c\u4e3a\u751f\u4ea7\u8005\uff0c\u6309\u7167\u6307\u5b9a\u9891\u7387\u5411\u6876\uff08\u5bb9\u5668\uff09\u4e2d\u6dfb\u52a0\u4ee4\u724c\uff0c\u5982 QPS \u4e3a 2\uff0c\u6bcf 500ms \u5411\u6876\u4e2d\u6dfb\u52a0\u4e00\u4e2a\u4ee4\u724c\uff0c\u5982\u679c\u6876\u4e2d\u4ee4\u724c\u6570\u91cf\u8fbe\u5230\u9608\u503c\uff0c\u5219\u4e0d\u518d\u6dfb\u52a0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8bf7\u6c42\u6267\u884c\u4f5c\u4e3a\u6d88\u8d39\u8005\uff0c\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u9700\u8981\u53bb\u6876\u4e2d\u62ff\u53d6\u4e00\u4e2a\u4ee4\u724c\uff0c\u53d6\u5230\u4ee4\u724c\u5219\u7ee7\u7eed\u6267\u884c\uff1b\u5982\u679c\u6876\u4e2d\u65e0\u4ee4\u724c\u53ef\u53d6\uff0c\u5c31\u89e6\u53d1\u62d2\u7edd\u7b56\u7565\uff0c\u53ef\u4ee5\u662f\u8d85\u65f6\u7b49\u5f85\uff0c\u4e5f\u53ef\u4ee5\u662f\u76f4\u63a5\u62d2\u7edd\u672c\u6b21\u8bf7\u6c42\uff0c\u7531\u6b64\u8fbe\u5230\u9650\u6d41\u76ee\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u4ee4\u724c\u6876\u9650\u6d41\u7b97\u6cd5\u793a\u610f\u56fe\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/cdn.jsdelivr.net\/gh\/xmt1139057136\/xttblog\/2022\/07\/xianliu3.png\" alt=\"\u4ee4\u724c\u6876\u7b97\u6cd5\" \/><figcaption>\u4ee4\u724c\u6876\u7b97\u6cd5<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u601d\u8003\u4ee4\u724c\u6876\u7684\u5b9e\u73b0\u53ef\u4ee5\u4ee5\u4e0b\u7279\u70b9\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>1s \/ \u9608\u503c\uff08QPS\uff09 = \u4ee4\u724c\u6dfb\u52a0\u65f6\u95f4\u95f4\u9694\u3002<\/li><li>\u6876\u7684\u5bb9\u91cf\u7b49\u4e8e\u9650\u6d41\u7684\u9608\u503c\uff0c\u4ee4\u724c\u6570\u91cf\u8fbe\u5230\u9608\u503c\u65f6\uff0c\u4e0d\u518d\u6dfb\u52a0\u3002<\/li><li>\u53ef\u4ee5\u9002\u5e94\u6d41\u91cf\u7a81\u53d1\uff0cN \u4e2a\u8bf7\u6c42\u5230\u6765\u53ea\u9700\u8981\u4ece\u6876\u4e2d\u83b7\u53d6 N \u4e2a\u4ee4\u724c\u5c31\u53ef\u4ee5\u7ee7\u7eed\u5904\u7406\u3002<\/li><li>\u6709\u542f\u52a8\u8fc7\u7a0b\uff0c\u4ee4\u724c\u6876\u542f\u52a8\u65f6\u6876\u4e2d\u65e0\u4ee4\u724c\uff0c\u7136\u540e\u6309\u7167\u4ee4\u724c\u6dfb\u52a0\u65f6\u95f4\u95f4\u9694\u6dfb\u52a0\u4ee4\u724c\uff0c\u82e5\u542f\u52a8\u65f6\u5c31\u6709\u9608\u503c\u6570\u91cf\u7684\u8bf7\u6c42\u8fc7\u6765\uff0c\u4f1a\u56e0\u4e3a\u6876\u4e2d\u6ca1\u6709\u8db3\u591f\u7684\u4ee4\u724c\u800c\u89e6\u53d1\u62d2\u7edd\u7b56\u7565\uff0c\u4e0d\u8fc7\u5982 RateLimiter \u9650\u6d41\u5de5\u5177\u5df2\u7ecf\u4f18\u5316\u4e86\u8fd9\u7c7b\u95ee\u9898\u3002<\/li><\/ol>\n\n\n\n<h3 class=\"wp-block-heading\">\u4ee3\u7801\u5b9e\u73b0<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Google \u7684 Java \u5f00\u53d1\u5de5\u5177\u5305 Guava \u4e2d\u7684\u9650\u6d41\u5de5\u5177\u7c7b RateLimiter \u5c31\u662f\u4ee4\u724c\u6876\u7684\u4e00\u4e2a\u5b9e\u73b0\uff0c\u65e5\u5e38\u5f00\u53d1\u4e2d\u6211\u4eec\u4e5f\u4e0d\u4f1a\u624b\u52a8\u5b9e\u73b0\u4e86\uff0c\u8fd9\u91cc\u76f4\u63a5\u4f7f\u7528 RateLimiter \u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f15\u5165\u4f9d\u8d56\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;exclusion&gt;\n  \t&lt;groupId&gt;com.google.guava&lt;\/groupId&gt;\n    &lt;artifactId&gt;guava&lt;\/artifactId&gt;\n  \t&lt;version&gt;31.0.1-jre&lt;\/version&gt;\n&lt;\/exclusion&gt;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">RateLimiter \u9650\u6d41\u4f53\u9a8c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ qps 2\nRateLimiter rateLimiter = RateLimiter.create(2);\nfor (int i = 0; i &lt; 10; i++) {\n    String time = LocalDateTime.now().format(DateTimeFormatter.ISO_LOCAL_TIME);\n    System.out.println(time + \":\" + rateLimiter.tryAcquire());\n    Thread.sleep(250);\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7801\u4e2d\u9650\u5236 QPS \u4e3a 2\uff0c\u4e5f\u5c31\u662f\u6bcf\u9694 500ms \u751f\u6210\u4e00\u4e2a\u4ee4\u724c\uff0c\u4f46\u662f\u7a0b\u5e8f\u6bcf\u9694 250ms \u83b7\u53d6\u4e00\u6b21\u4ee4\u724c\uff0c\u6240\u4ee5\u4e24\u6b21\u83b7\u53d6\u4e2d\u53ea\u6709\u4e00\u6b21\u4f1a\u6210\u529f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>17:19:06.797557:true\n17:19:07.061419:false\n17:19:07.316283:true\n17:19:07.566746:false\n17:19:07.817035:true\n17:19:08.072483:false\n17:19:08.326347:true\n17:19:08.577661:false\n17:19:08.830252:true\n17:19:09.085327:false<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u601d\u8003<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u867d\u7136\u6f14\u793a\u4e86 Google Guava \u5de5\u5177\u5305\u4e2d\u7684 RateLimiter \u7684\u5b9e\u73b0\uff0c\u4f46\u662f\u6211\u4eec\u9700\u8981\u601d\u8003\u4e00\u4e2a\u95ee\u9898\uff0c\u5c31\u662f\u4ee4\u724c\u7684\u6dfb\u52a0\u65b9\u5f0f\uff0c\u5982\u679c\u6309\u7167\u6307\u5b9a\u95f4\u9694\u6dfb\u52a0\u4ee4\u724c\uff0c\u90a3\u4e48\u9700\u8981\u5f00\u4e00\u4e2a\u7ebf\u7a0b\u53bb\u5b9a\u65f6\u6dfb\u52a0\uff0c\u5982\u679c\u6709\u5f88\u591a\u4e2a\u63a5\u53e3\u5f88\u591a\u4e2a RateLimiter \u5b9e\u4f8b\uff0c<strong>\u300c\u7ebf\u7a0b\u6570\u4f1a\u968f\u4e4b\u589e\u52a0\u300d<\/strong>\uff0c\u8fd9\u663e\u7136\u4e0d\u662f\u4e00\u4e2a\u597d\u7684\u529e\u6cd5\u3002\u663e\u7136 Google \u4e5f\u8003\u8651\u5230\u4e86\u8fd9\u4e2a\u95ee\u9898\uff0c\u5728 RateLimiter \u4e2d\uff0c\u662f<strong>\u300c\u5728\u6bcf\u6b21\u4ee4\u724c\u83b7\u53d6\u65f6\u624d\u8fdb\u884c\u8ba1\u7b97\u4ee4\u724c\u662f\u5426\u8db3\u591f\u7684\u300d<\/strong>\u3002\u5b83\u901a\u8fc7\u5b58\u50a8\u7684\u4e0b\u4e00\u4e2a\u4ee4\u724c\u751f\u6210\u7684\u65f6\u95f4\uff0c\u548c\u5f53\u524d\u83b7\u53d6\u4ee4\u724c\u7684\u65f6\u95f4\u5dee\uff0c\u518d\u7ed3\u5408\u9608\u503c\uff0c\u53bb\u8ba1\u7b97\u4ee4\u724c\u662f\u5426\u8db3\u591f\uff0c\u540c\u65f6\u518d\u8bb0\u5f55\u4e0b\u4e00\u4e2a\u4ee4\u724c\u7684\u751f\u6210\u65f6\u95f4\u4ee5\u4fbf\u4e0b\u4e00\u6b21\u8c03\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f Guava \u4e2d RateLimiter \u7c7b\u7684\u5b50\u7c7b SmoothRateLimiter \u7684 <code>resync()<\/code> \u65b9\u6cd5\u7684\u4ee3\u7801\u5206\u6790\uff0c\u53ef\u4ee5\u770b\u5230\u5176\u4e2d\u7684\u4ee4\u724c\u8ba1\u7b97\u903b\u8f91\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>void resync(long nowMicros) { \/\/ \u5f53\u524d\u5fae\u79d2\u65f6\u95f4\n    \/\/ \u5f53\u524d\u65f6\u95f4\u662f\u5426\u5927\u4e8e\u4e0b\u4e00\u4e2a\u4ee4\u724c\u751f\u6210\u65f6\u95f4\n    if (nowMicros &gt; this.nextFreeTicketMicros) { \n      \t\/\/ \u53ef\u751f\u6210\u7684\u4ee4\u724c\u6570 newPermits = \uff08\u5f53\u524d\u65f6\u95f4 - \u4e0b\u4e00\u4e2a\u4ee4\u724c\u751f\u6210\u65f6\u95f4\uff09\/ \u4ee4\u724c\u751f\u6210\u65f6\u95f4\u95f4\u9694\u3002\n      \t\/\/ \u5982\u679c QPS \u4e3a2\uff0c\u8fd9\u91cc\u7684 coolDownIntervalMicros \u5c31\u662f 500000.0 \u5fae\u79d2(500ms)\n        double newPermits = (double)(nowMicros - this.nextFreeTicketMicros) \/ this.coolDownIntervalMicros();\n\t\t\t\t\/\/ \u66f4\u65b0\u4ee4\u724c\u5e93\u5b58 storedPermits\u3002\n      \tthis.storedPermits = Math.min(this.maxPermits, this.storedPermits + newPermits);\n\t\t\t\t\/\/ \u66f4\u65b0\u4e0b\u4e00\u4e2a\u4ee4\u724c\u751f\u6210\u65f6\u95f4 nextFreeTicketMicros\n      \tthis.nextFreeTicketMicros = nowMicros;\n    }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Redis \u5206\u5e03\u5f0f\u9650\u6d41<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u7528\u6765\u4f5c\u4e3a\u6570\u636e\u5e93\u3001\u7f13\u5b58\u3001\u6d88\u606f\u4e2d\u95f4\u4ef6\u7b49\u3002Redis \u662f\u5355\u7ebf\u7a0b\u7684\uff0c\u53c8\u5728\u5185\u5b58\u4e2d\u64cd\u4f5c\uff0c\u6240\u4ee5\u901f\u5ea6\u6781\u5feb\uff0c\u5f97\u76ca\u4e8e Redis \u7684\u5404\u79cd\u7279\u6027\uff0c\u6240\u4ee5\u4f7f\u7528 Redis \u5b9e\u73b0\u4e00\u4e2a\u9650\u6d41\u5de5\u5177\u662f\u5341\u5206\u65b9\u4fbf\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u7684\u6f14\u793a\u90fd\u57fa\u4e8eSpring Boot \u9879\u76ee\uff0c\u5e76\u9700\u8981\u4ee5\u4e0b\u4f9d\u8d56\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;dependency&gt;\n    &lt;groupId&gt;org.springframework.boot&lt;\/groupId&gt;\n    &lt;artifactId&gt;spring-boot-starter-data-redis&lt;\/artifactId&gt;\n&lt;\/dependency&gt;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u914d\u7f6e Redis \u4fe1\u606f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>spring:\n  redis:\n    database: 0\n    password: \n    port: 6379\n    host: 127.0.0.1\n    lettuce:\n      shutdown-timeout: 100ms\n      pool:\n        min-idle: 5\n        max-idle: 10\n        max-active: 8\n        max-wait: 1ms<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \u4e2d\u7684\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41\u662f\u4f7f\u7528 <code>incr<\/code> \u547d\u4ee4\u5b9e\u73b0\u7684\uff0c<code>incr<\/code> \u547d\u4ee4\u901a\u5e38\u7528\u6765\u81ea\u589e\u8ba1\u6570\uff1b\u5982\u679c\u6211\u4eec\u4f7f\u7528\u65f6\u95f4\u6233\u4fe1\u606f\u4f5c\u4e3a key\uff0c\u81ea\u7136\u5c31\u53ef\u4ee5\u7edf\u8ba1\u6bcf\u79d2\u7684\u8bf7\u6c42\u91cf\u4e86\uff0c\u4ee5\u6b64\u8fbe\u5230\u9650\u6d41\u76ee\u7684\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u6709\u4e24\u70b9\u8981\u6ce8\u610f\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>\u5bf9\u4e8e\u4e0d\u5b58\u5728\u7684 key\uff0c\u7b2c\u4e00\u6b21\u65b0\u589e\u65f6\uff0cvalue \u59cb\u7ec8\u4e3a 1\u3002<\/li><li>INCR \u548c EXPIRE \u547d\u4ee4\u64cd\u4f5c\u5e94\u8be5\u5728\u4e00\u4e2a<strong>\u300c\u539f\u5b50\u64cd\u4f5c\u300d<\/strong>\u4e2d\u63d0\u4ea4\uff0c\u4ee5\u4fdd\u8bc1\u6bcf\u4e2a key \u90fd\u6b63\u786e\u8bbe\u7f6e\u4e86\u8fc7\u671f\u65f6\u95f4\uff0c\u4e0d\u7136\u4f1a\u6709 key \u503c\u65e0\u6cd5\u81ea\u52a8\u5220\u9664\u800c\u5bfc\u81f4\u7684\u5185\u5b58\u6ea2\u51fa\u3002<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u7531\u4e8e Redis \u4e2d\u5b9e\u73b0\u4e8b\u52a1\u7684\u590d\u6742\u6027\uff0c\u6240\u4ee5\u8fd9\u91cc\u76f4\u63a5\u53ea\u7528 <code>lua<\/code> \u811a\u672c\u6765\u5b9e\u73b0\u539f\u5b50\u64cd\u4f5c\u3002\u4e0b\u9762\u662f <code>lua<\/code> \u811a\u672c\u5185\u5bb9\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>local count = redis.call(\"incr\",KEYS[1])\nif count == 1 then\n  redis.call('expire',KEYS[1],ARGV[2])\nend\nif count &gt; tonumber(ARGV[1]) then\n  return 0\nend\nreturn 1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u4f7f\u7528 Spring Boot \u4e2d <code>RedisTemplate<\/code> \u6765\u5b9e\u73b0\u7684 <code>lua<\/code> \u811a\u672c\u8c03\u7528\u6d4b\u8bd5\u4ee3\u7801\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@SpringBootTest\nclass RedisLuaLimiterByIncr {\n    private static String KEY_PREFIX = \"limiter_\";\n    private static String QPS = \"4\";\n    private static String EXPIRE_TIME = \"1\";\n\n    @Autowired\n    private StringRedisTemplate stringRedisTemplate;\n\n    @Test\n    public void redisLuaLimiterTests() throws InterruptedException, IOException {\n        for (int i = 0; i &lt; 15; i++) {\n            Thread.sleep(200);\n            System.out.println(LocalTime.now() + \" \" + acquire(\"user1\"));\n        }\n    }\n\n    \/**\n     * \u8ba1\u6570\u5668\u9650\u6d41\n     *\n     * @param key\n     * @return\n     *\/\n    public boolean acquire(String key) {\n        \/\/ \u5f53\u524d\u79d2\u6570\u4f5c\u4e3a key\n        key = KEY_PREFIX + key + System.currentTimeMillis() \/ 1000;\n        DefaultRedisScript&lt;Long&gt; redisScript = new DefaultRedisScript&lt;&gt;();\n        redisScript.setResultType(Long.class);\n        \/\/lua\u6587\u4ef6\u5b58\u653e\u5728resources\u76ee\u5f55\u4e0b\n        redisScript.setScriptSource(new ResourceScriptSource(new ClassPathResource(\"limiter.lua\")));\n        return stringRedisTemplate.execute(redisScript, Arrays.asList(key), QPS, EXPIRE_TIME) == 1;\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7801\u4e2d\u867d\u7136\u9650\u5236\u4e86 QPS \u4e3a 4\uff0c\u4f46\u662f\u56e0\u4e3a\u8fd9\u79cd\u9650\u6d41\u5b9e\u73b0\u662f\u628a\u6beb\u79d2\u65f6\u95f4\u6233\u4f5c\u4e3a key \u7684\uff0c\u6240\u4ee5\u4f1a\u6709\u4e34\u754c\u7a97\u53e3\u7a81\u53d8\u7684\u95ee\u9898\uff0c\u4e0b\u9762\u662f\u8fd0\u884c\u7ed3\u679c\uff0c\u53ef\u4ee5\u770b\u5230\u56e0\u4e3a\u65f6\u95f4\u7a97\u53e3\u7684\u53d8\u5316\uff0c\u5bfc\u81f4\u4e86 QPS \u8d85\u8fc7\u4e86\u9650\u5236\u503c 4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>17:38:23.122044 true\n17:38:23.695124 true\n17:38:23.903220 true\n# \u6b64\u5904\u6709\u65f6\u95f4\u7a97\u53e3\u53d8\u5316\uff0c\u6240\u4ee5\u4e0b\u9762\u7ee7\u7eed true\n17:38:24.106206 true\n17:38:24.313458 true\n17:38:24.519431 true\n17:38:24.724446 true\n17:38:24.932387 false\n17:38:25.137912 true\n17:38:25.355595 true\n17:38:25.558219 true\n17:38:25.765801 true\n17:38:25.969426 false\n17:38:26.176220 true\n17:38:26.381918 true<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ed1\u52a8\u7a97\u53e3\u9650\u6d41<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u8fc7\u5bf9\u4e0a\u9762\u7684\u57fa\u4e8e <code>incr<\/code> \u547d\u4ee4\u5b9e\u73b0\u7684 Redis \u9650\u6d41\u65b9\u5f0f\u7684\u6d4b\u8bd5\uff0c\u6211\u4eec\u5df2\u7ecf\u53d1\u73b0\u4e86\u56fa\u5b9a\u7a97\u53e3\u9650\u6d41\u6240\u5e26\u6765\u7684\u95ee\u9898\uff0c\u5728\u8fd9\u7bc7\u6587\u7ae0\u7684\u7b2c\u4e09\u90e8\u5206\u5df2\u7ecf\u4ecb\u7ecd\u4e86\u6ed1\u52a8\u7a97\u53e3\u9650\u6d41\u7684\u4f18\u52bf\uff0c\u5b83\u53ef\u4ee5\u5927\u5e45\u5ea6\u964d\u4f4e\u56e0\u4e3a\u7a97\u53e3\u4e34\u754c\u7a81\u53d8\u5e26\u6765\u7684\u95ee\u9898\uff0c\u90a3\u4e48\u5982\u4f55\u4f7f\u7528 Redis \u6765\u5b9e\u73b0\u6ed1\u52a8\u7a97\u53e3\u9650\u6d41\u5462\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u4e3b\u8981\u4f7f\u7528 <code>ZSET<\/code> \u6709\u5e8f\u96c6\u5408\u6765\u5b9e\u73b0\u6ed1\u52a8\u7a97\u53e3\u9650\u6d41\uff0c<code>ZSET<\/code> \u96c6\u5408\u6709\u4e0b\u9762\u51e0\u4e2a\u7279\u70b9\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\"><li>ZSET \u96c6\u5408\u4e2d\u7684 key \u503c\u53ef\u4ee5\u81ea\u52a8\u6392\u5e8f\u3002<\/li><li>ZSET \u96c6\u5408\u4e2d\u7684 value \u4e0d\u80fd\u6709\u91cd\u590d\u503c\u3002<\/li><li>ZSET \u96c6\u5408\u53ef\u4ee5\u65b9\u4fbf\u7684\u4f7f\u7528 ZCARD \u547d\u4ee4\u83b7\u53d6\u5143\u7d20\u4e2a\u6570\u3002<\/li><li>ZSET \u96c6\u5408\u53ef\u4ee5\u65b9\u4fbf\u7684\u4f7f\u7528 ZREMRANGEBYLEX \u547d\u4ee4\u79fb\u9664\u6307\u5b9a\u8303\u56f4\u7684 key \u503c\u3002<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u57fa\u4e8e\u4e0a\u9762\u7684\u56db\u70b9\u7279\u6027\uff0c\u53ef\u4ee5\u7f16\u5199\u51fa\u57fa\u4e8e <code>ZSET<\/code> \u7684\u6ed1\u52a8\u7a97\u53e3\u9650\u6d41 <code>lua<\/code> \u811a\u672c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>--KEYS[1]: \u9650\u6d41 key\n--ARGV[1]: \u65f6\u95f4\u6233 - \u65f6\u95f4\u7a97\u53e3\n--ARGV[2]: \u5f53\u524d\u65f6\u95f4\u6233\uff08\u4f5c\u4e3ascore\uff09\n--ARGV[3]: \u9608\u503c\n--ARGV[4]: score \u5bf9\u5e94\u7684\u552f\u4e00value\n-- 1. \u79fb\u9664\u65f6\u95f4\u7a97\u53e3\u4e4b\u524d\u7684\u6570\u636e\nredis.call('zremrangeByScore', KEYS[1], 0, ARGV[1])\n-- 2. \u7edf\u8ba1\u5f53\u524d\u5143\u7d20\u6570\u91cf\nlocal res = redis.call('zcard', KEYS[1])\n-- 3. \u662f\u5426\u8d85\u8fc7\u9608\u503c\nif (res == nil) or (res &lt; tonumber(ARGV[3])) then\n    redis.call('zadd', KEYS[1], ARGV[2], ARGV[4])\n    return 1\nelse\n    return 0\nend<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0b\u9762\u662f\u4f7f\u7528 Spring Boot \u4e2d <code>RedisTemplate<\/code> \u6765\u5b9e\u73b0\u7684 <code>lua<\/code> \u811a\u672c\u8c03\u7528\u6d4b\u8bd5\u4ee3\u7801\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@SpringBootTest\nclass RedisLuaLimiterByZset {\n\n    private String KEY_PREFIX = \"limiter_\";\n    private String QPS = \"4\";\n\n    @Autowired\n    private StringRedisTemplate stringRedisTemplate;\n\n    @Test\n    public void redisLuaLimiterTests() throws InterruptedException, IOException {\n        for (int i = 0; i &lt; 15; i++) {\n            Thread.sleep(200);\n            System.out.println(LocalTime.now() + \" \" + acquire(\"user1\"));\n        }\n    }\n\n    \/**\n     * \u8ba1\u6570\u5668\u9650\u6d41\n     *\n     * @param key\n     * @return\n     *\/\n    public boolean acquire(String key) {\n        long now = System.currentTimeMillis();\n        key = KEY_PREFIX + key;\n        String oldest = String.valueOf(now - 1_000);\n        String score = String.valueOf(now);\n        String scoreValue = score;\n        DefaultRedisScript&lt;Long&gt; redisScript = new DefaultRedisScript&lt;&gt;();\n        redisScript.setResultType(Long.class);\n        \/\/lua\u6587\u4ef6\u5b58\u653e\u5728resources\u76ee\u5f55\u4e0b\n        redisScript.setScriptSource(new ResourceScriptSource(new ClassPathResource(\"limiter2.lua\")));\n        return stringRedisTemplate.execute(redisScript, Arrays.asList(key), oldest, score, QPS, scoreValue) == 1;\n    }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u7801\u4e2d\u9650\u5236 QPS \u4e3a 4\uff0c\u8fd0\u884c\u7ed3\u679c\u4fe1\u606f\u4e0e\u4e4b\u4e00\u81f4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>17:36:37.150370 true\n17:36:37.716341 true\n17:36:37.922577 true\n17:36:38.127497 true\n17:36:38.335879 true\n17:36:38.539225 false\n17:36:38.745903 true\n17:36:38.952491 true\n17:36:39.159497 true\n17:36:39.365239 true\n17:36:39.570572 false\n17:36:39.776635 true\n17:36:39.982022 true\n17:36:40.185614 true\n17:36:40.389469 true<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u4ecb\u7ecd\u4e86 Redis \u5b9e\u73b0\u9650\u6d41\u7684\u4e24\u79cd\u65b9\u5f0f\uff0c\u5f53\u7136\u4f7f\u7528 Redis \u4e5f\u53ef\u4ee5\u5b9e\u73b0\u6f0f\u6876\u548c\u4ee4\u724c\u6876\u4e24\u79cd\u9650\u6d41\u7b97\u6cd5\uff0c\u8fd9\u91cc\u5c31\u4e0d\u505a\u6f14\u793a\u4e86\uff0c\u611f\u5174\u8da3\u7684\u53ef\u4ee5\u81ea\u5df1\u7814\u7a76\u4e0b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u7bc7\u6587\u7ae0\u4ecb\u7ecd\u5b9e\u73b0\u9650\u6d41\u7684\u51e0\u79cd\u65b9\u5f0f\uff0c\u4e3b\u8981\u662f<strong>\u300c\u7a97\u53e3\u7b97\u6cd5\u548c\u6876\u7b97\u6cd5\u300d<\/strong>\uff0c\u4e24\u8005\u5404\u6709\u4f18\u52bf\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u7a97\u53e3\u7b97\u6cd5\u5b9e\u73b0\u7b80\u5355\uff0c\u903b\u8f91\u6e05\u6670\uff0c\u53ef\u4ee5\u5f88\u76f4\u89c2\u7684\u5f97\u5230\u5f53\u524d\u7684 QPS \u60c5\u51b5\uff0c\u4f46\u662f\u4f1a\u6709\u65f6\u95f4\u7a97\u53e3\u7684\u4e34\u754c\u7a81\u53d8\u95ee\u9898\uff0c\u800c\u4e14\u4e0d\u50cf\u6876\u4e00\u6837\u6709\u961f\u5217\u53ef\u4ee5\u7f13\u51b2\u3002<\/li><li>\u6876\u7b97\u6cd5\u867d\u7136\u7a0d\u5fae\u590d\u6742\uff0c\u4e0d\u597d\u7edf\u8ba1 QPS \u60c5\u51b5\uff0c\u4f46\u662f\u6876\u7b97\u6cd5\u4e5f\u6709\u4f18\u52bf\u6240\u5728\u3002\n<ul><li>\u6f0f\u6876\u6a21\u5f0f\u6d88\u8d39\u901f\u7387\u6052\u5b9a\uff0c\u53ef\u4ee5\u5f88\u597d\u7684<strong>\u300c\u4fdd\u62a4\u81ea\u8eab\u7cfb\u7edf\u300d<\/strong>\uff0c\u53ef\u4ee5\u5bf9\u6d41\u91cf\u8fdb\u884c\u6574\u5f62\uff0c\u4f46\u662f\u9762\u5bf9\u7a81\u53d1\u6d41\u91cf\u4e0d\u80fd\u5feb\u901f\u54cd\u5e94\u3002<\/li><li>\u4ee4\u724c\u6876\u6a21\u5f0f\u53ef\u4ee5\u9762\u5bf9\u7a81\u53d1\u6d41\u91cf\uff0c\u4f46\u662f\u542f\u52a8\u65f6\u4f1a\u6709\u7f13\u6162\u52a0\u901f\u7684\u8fc7\u7a0b\uff0c\u4e0d\u8fc7\u5e38\u89c1\u7684\u5f00\u6e90\u5de5\u5177\u4e2d\u5df2\u7ecf\u5bf9\u6b64\u4f18\u5316\u3002<\/li><\/ul>\n<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u5355\u673a\u9650\u6d41\u4e0e\u5206\u5e03\u5f0f\u9650\u6d41\u300d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u9762\u6f14\u793a\u7684\u57fa\u4e8e\u4ee3\u7801\u5f62\u5f0f\u7684\u7a97\u53e3\u7b97\u6cd5\u548c\u6876\u7b97\u6cd5\u9650\u6d41\u90fd\u9002\u7528\u4e8e\u5355\u673a\u9650\u6d41\uff0c\u5982\u679c\u9700\u8981\u5206\u5e03\u5f0f\u9650\u6d41\u53ef\u4ee5\u7ed3\u5408\u6ce8\u518c\u4e2d\u5fc3\u3001\u8d1f\u8f7d\u5747\u8861\u8ba1\u7b97\u6bcf\u4e2a\u670d\u52a1\u7684\u9650\u6d41\u9608\u503c\uff0c\u4f46\u8fd9\u6837\u4f1a\u964d\u4f4e\u4e00\u5b9a\u7cbe\u5ea6\uff0c\u5982\u679c\u5bf9\u7cbe\u5ea6\u8981\u6c42\u4e0d\u662f\u592a\u9ad8\uff0c\u53ef\u4ee5\u4f7f\u7528\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u800c Redis \u7684\u9650\u6d41\uff0c\u7531\u4e8e Redis \u7684\u5355\u673a\u6027\uff0c\u672c\u8eab\u5c31\u53ef\u4ee5\u7528\u4e8e\u5206\u5e03\u5f0f\u9650\u6d41\u3002\u4f7f\u7528 Redis \u53ef\u4ee5\u5b9e\u73b0\u5404\u79cd\u53ef\u4ee5\u7528\u4e8e\u9650\u6d41\u7b97\u6cd5\uff0c\u5982\u679c\u89c9\u5f97\u9ebb\u70e6\u4e5f\u53ef\u4ee5\u4f7f\u7528\u5f00\u6e90\u5de5\u5177\u5982 redisson\uff0c\u5df2\u7ecf\u5c01\u88c5\u4e86\u57fa\u4e8e Redis \u7684\u9650\u6d41\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u300c\u5176\u4ed6\u9650\u6d41\u5de5\u5177\u300d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6587\u4e2d\u5df2\u7ecf\u63d0\u5230\u4e86 <code>Guava<\/code> \u7684\u9650\u6d41\u5de5\u5177\u5305\uff0c\u4e0d\u8fc7\u5b83\u6bd5\u7adf\u662f\u5355\u673a\u7684\uff0c\u5f00\u6e90\u793e\u533a\u4e2d\u4e5f\u6709\u5f88\u591a\u5206\u5e03\u5f0f\u9650\u6d41\u5de5\u5177\uff0c\u5982\u963f\u91cc\u5f00\u6e90\u7684 Sentinel \u5c31\u662f\u4e0d\u9519\u7684\u5de5\u5177\uff0cSentinel \u4ee5\u6d41\u91cf\u4e3a\u5207\u5165\u70b9\uff0c\u4ece\u6d41\u91cf\u63a7\u5236\u3001\u7194\u65ad\u964d\u7ea7\u3001\u7cfb\u7edf\u8d1f\u8f7d\u4fdd\u62a4\u7b49\u591a\u4e2a\u7ef4\u5ea6\u4fdd\u62a4\u670d\u52a1\u7684\u7a33\u5b9a\u6027\u3002<\/p>\n<!-- <audio autoplay=\"autoplay\" height=\"100\" width=\"100\" hidden=\"true\"><source src=\"https:\/\/c.coka.la\/orAvPR.mp3\" type=\"audio\/mp3\"\/><\/audio><img decoding=\"async\" src=\"https:\/\/images.weserv.nl\/?url=https:\/\/ws3.sinaimg.cn\/large\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/> --><p><!-- <img decoding=\"async\" src=\"https:\/\/raw.githubusercontent.com\/xmt1139057136\/xttblog\/master\/8fa5dcfcgy1g4em3rzar5j20ib089ae0.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/>--><img decoding=\"async\" src=\"https:\/\/saas.51autoparts.cn\/api\/admin\/sys-file\/oss\/file?fileName=84db51f8561e448f9a4fda2eff0811f9.jpg\" alt=\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/><\/p><p>\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01<b>\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1a<font color=\"red\">xttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p><p>\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a<a href=\"https:\/\/www.xttblog.com\">\u4e1a\u4f59\u8349<\/a>\uff1a &raquo; <a 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