{"id":10006124,"date":"2022-08-07T04:19:41","date_gmt":"2022-08-06T20:19:41","guid":{"rendered":"https:\/\/ityet.com\/?p=10006124"},"modified":"2022-08-07T04:19:41","modified_gmt":"2022-08-06T20:19:41","slug":"%e9%9d%a2%e5%90%91%e5%8d%95%e5%85%83%e6%b5%8b%e8%af%95%e7%9a%84%e4%bb%a3%e7%a0%81%e9%87%8d%e6%9e%84","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006124","title":{"rendered":"\u9762\u5411\u5355\u5143\u6d4b\u8bd5\u7684\u4ee3\u7801\u91cd\u6784"},"content":{"rendered":"<h2>\u524d\u8a00<\/h2>\n<p>\u91cd\u6784\u4ee3\u7801\u65f6\uff0c\u6211\u4eec\u5e38\u5e38\u7ea0\u7ed3\u4e8e\u8fd9\u6837\u7684\u95ee\u9898\uff1a<\/p>\n<ul>\n<li>\u9700\u8981\u8fdb\u4e00\u6b65\u62bd\u8c61\u5417\uff1f\u4f1a\u4e0d\u4f1a\u5bfc\u81f4\u8fc7\u5ea6\u8bbe\u8ba1\uff1f<\/li>\n<li>\u5982\u679c\u9700\u8981\u8fdb\u4e00\u6b65\u62bd\u8c61\u7684\u8bdd\uff0c\u5982\u4f55\u8fdb\u884c\u62bd\u8c61\u5462\uff1f\u6709\u4ec0\u4e48\u901a\u7528\u7684\u6b65\u9aa4\u6216\u8005\u6cd5\u5219\u5417\uff1f<\/li>\n<\/ul>\n<p>\u5355\u5143\u6d4b\u8bd5\u662f\u6211\u4eec\u5e38\u7528\u7684\u9a8c\u8bc1\u4ee3\u7801\u6b63\u786e\u6027\u7684\u5de5\u5177\uff0c\u4f46\u662f\u5982\u679c\u53ea\u7528\u6765\u9a8c\u8bc1\u6b63\u786e\u6027\u7684\u8bdd\uff0c\u90a3\u5c31\u662f\u771f\u662f 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class=\"java\">   public void producerConsumer() {\n        BlockingQueue&lt;Integer&gt; blockingQueue = new LinkedBlockingQueue&lt;&gt;();\n        Thread producerThread  = new Thread(() -&gt; {\n            for (int i = 0; i &lt; 10; i++) {\n                blockingQueue.add(i + ThreadLocalRandom.current().nextInt(100));\n            }\n        });\n        Thread consumerThread = new Thread(() -&gt; {\n            try {\n                while (true) {\n                    Integer result = blockingQueue.take();\n                    System.out.println(result);\n                }\n            } catch (InterruptedException ignore) {\n            }\n        });\n        producerThread.start();\n        consumerThread.start();\n    }<\/code><\/pre>\n<p>\u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u4e3b\u8981\u53ef\u4ee5\u5212\u5206\u4e3a3\u90e8\u5206\uff1a<\/p>\n<ul>\n<li>\u751f\u4ea7\u8005\uff1a\u5f80\u963b\u585e\u961f\u5217\u91cc\u6dfb\u52a010\u4e2a\u6570\u636e\uff0c\u5177\u4f53\u903b\u8f91\uff1a\u5c06 0-9 \u7684\u6bcf\u4e00\u4e2a\u6570\u5b57\uff0c\u5206\u522b\u52a0\u4e0a [0,100) \u7684\u968f\u673a\u6570<\/li>\n<li>\u6d88\u8d39\u8005\uff1a\u4ece\u963b\u585e\u961f\u5217\u4e2d\u83b7\u53d6\u6570\u5b57\uff0c\u5e76\u6253\u5370<\/li>\n<li>\u4e3b\u7ebf\u7a0b\uff1a\u542f\u52a8\u4e24\u4e2a\u7ebf\u7a0b\uff0c\u5206\u522b\u662f\u751f\u4ea7\u8005\u548c\u6d88\u8d39\u8005<\/li>\n<\/ul>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u770b\u4e0a\u53bb\u8fd8\u662f\u633a\u7b80\u6d01\u7684\uff0c\u4f46\u662f\uff0c\u7b97\u5f97\u4e0a\u4e00\u6bb5\u597d\u4ee3\u7801\u5417\uff1f\u5c1d\u8bd5\u4e0b\u7ed9\u8fd9\u6bb5\u4ee3\u7801\u52a0\u4e0a\u5355\u5143\u6d4b\u8bd5\u3002\u4ec5\u4ec5\u8fd0\u884c\u4e00\u4e0b\u8fd9\u4e2a\u4ee3\u7801\u80af\u5b9a\u662f\u4e0d\u591f\u7684\uff0c\u56e0\u4e3a\u6211\u4eec\u65e0\u6cd5\u786e\u8ba4\u751f\u4ea7\u6d88\u8d39\u903b\u8f91\u662f\u5426\u6b63\u786e\u6267\u884c\u3002\u6211\u4e5f\u53ea\u80fd\u53d1\u51fa\u201c\u5b8c\u5168\u4e0d\u77e5\u9053\u5982\u4f55\u4e0b\u624b\u201d\u7684\u611f\u53f9\uff0c\u8fd9\u4e0d\u662f\u56e0\u4e3a\u6211\u4eec\u7684\u5355\u5143\u6d4b\u8bd5\u7f16\u5199\u6280\u5de7\u4e0d\u591f\uff0c\u800c\u662f\u56e0\u4e3a\u4ee3\u7801\u672c\u8eab\u5b58\u5728\u7684\u95ee\u9898\uff1a<\/p>\n<ol>\n<li>\u8fdd\u80cc\u5355\u4e00\u804c\u8d23\u539f\u5219\uff1a\u8fd9\u4e00\u4e2a\u51fd\u6570\u540c\u65f6\u505a\u4e86 \u6570\u636e\u4f20\u9012\uff0c\u5904\u7406\u6570\u636e\uff0c\u542f\u52a8\u7ebf\u7a0b\u4e09\u4ef6\u4e8b\u60c5\u3002\u5355\u5143\u6d4b\u8bd5\u8981\u517c\u987e\u8fd9\u4e09\u4e2a\u529f\u80fd\uff0c\u5c31\u4f1a\u5f88\u96be\u5199\u3002<\/li>\n<li>\n<p>\u8fd9\u4e2a\u4ee3\u7801\u672c\u8eab\u662f\u4e0d\u53ef\u91cd\u590d\u7684\uff0c\u4e0d\u5229\u4e8e\u5355\u5143\u6d4b\u8bd5\uff0c\u4e0d\u53ef\u91cd\u590d\u4f53\u73b0\u5728<\/p>\n<ul>\n<li>\u9700\u8981\u6d4b\u8bd5\u7684\u903b\u8f91\u4f4d\u4e8e\u5f02\u6b65\u7ebf\u7a0b\u4e2d\uff0c\u5bf9\u4e8e\u5b83\u4ec0\u4e48\u65f6\u5019\u6267\u884c\uff1f\u4ec0\u4e48\u65f6\u5019\u6267\u884c\u5b8c\uff1f\u90fd\u662f\u4e0d\u53ef\u63a7\u7684<\/li>\n<li>\u903b\u8f91\u4e2d\u542b\u6709\u968f\u673a\u6570<\/li>\n<li>\u6d88\u8d39\u8005\u76f4\u63a5\u5c06\u6570\u636e\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\u4e2d\uff0c\u5728\u4e0d\u540c\u73af\u5883\u4e2d\u65e0\u6cd5\u786e\u5b9a\u8fd9\u91cc\u7684\u884c\u4e3a\u662f\u4ec0\u4e48\uff0c\u6709\u53ef\u80fd\u662f\u8f93\u51fa\u5230\u4e86\u5c4f\u5e55\u4e0a\uff0c\u4e5f\u53ef\u80fd\u662f\u88ab\u91cd\u5b9a\u5411\u5230\u4e86\u6587\u4ef6\u4e2d<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8bf4\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u5148\u505c\u4e00\u505c\uff0c\u8ba8\u8bba\u4e00\u4e2a\u70b9\uff0c\u300e\u53ef\u6d4b\u8bd5\u610f\u5473\u7740\u4ec0\u4e48\u300f\uff1f\u56e0\u4e3a\u524d\u9762\u8bf4\u5230\uff0c\u91cd\u6784\u7684\u76ee\u7684\u662f\u8ba9\u4ee3\u7801\u53ef\u6d4b\u8bd5\uff0c\u8fd9\u91cc\u6709\u5fc5\u8981\u91cd\u70b9\u8ba8\u8bba\u4e0b\u8fd9\u4e2a\u6982\u5ff5\u3002<\/p>\n<h3>\u53ef\u6d4b\u8bd5\u610f\u5473\u7740\u4ec0\u4e48\uff1f<\/h3>\n<p>\u9996\u5148\u6211\u4eec\u8981\u4e86\u89e3\u53ef\u6d4b\u8bd5\u610f\u5473\u7740\u4ec0\u4e48\uff0c\u5982\u679c\u8bf4\u4e00\u6bb5\u4ee3\u7801\u662f\u53ef\u6d4b\u8bd5\u7684\uff0c\u90a3\u4e48\u5b83\u4e00\u5b9a\u7b26\u5408\u4e0b\u9762\u7684\u6761\u4ef6\uff1a<\/p>\n<ol>\n<li>\u53ef\u4ee5\u5728\u672c\u5730\u8bbe\u8ba1\u5b8c\u5907\u7684\u6d4b\u8bd5\u7528\u4f8b\uff0c\u79f0\u4e4b\u4e3a\u5b8c\u5168\u8986\u76d6\u7684\u5355\u5143\u6d4b\u8bd5\uff1b<\/li>\n<li>\u53ea\u8981\u5b8c\u5168\u8986\u76d6\u7684\u5355\u5143\u6d4b\u8bd5\u7528\u4f8b\u5168\u90e8\u6b63\u786e\u8fd0\u884c\uff0c\u90a3\u4e48\u8fd9\u4e00\u6bb5\u903b\u8f91\u80af\u5b9a\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff1b<\/li>\n<\/ol>\n<p>\u518d\u8fdb\u4e00\u6b65\uff0c\u5982\u679c\u4e00\u4e2a\u51fd\u6570\u7684\u8fd4\u56de\u503c\u53ea\u548c\u53c2\u6570\u6709\u5173\uff0c\u53ea\u8981\u53c2\u6570\u786e\u5b9a\uff0c\u8fd4\u56de\u503c\u5c31\u662f\u552f\u4e00\u786e\u5b9a\u7684\uff0c\u90a3\u4e48\u8fd9\u6837\u7684\u51fd\u6570\u4e00\u5b9a\u80fd\u88ab\u5b8c\u5168\u8986\u76d6\u3002\u8fd9\u4e2a\u597d\u7684\u7279\u6027\u53eb<strong>\u5f15\u7528\u900f\u660e\u3002<\/strong><\/p>\n<p>\u4f46\u662f\u73b0\u5b9e\u4e2d\u7684\u4ee3\u7801\u5927\u591a\u90fd\u4e0d\u4f1a\u6709\u8fd9\u4e48\u597d\u7684\u6027\u8d28\uff0c\u53cd\u800c\u5177\u6709\u5f88\u591a\u201c\u574f\u7684\u6027\u8d28\u201d\uff0c\u8fd9\u4e9b\u574f\u7684\u6027\u8d28\u4e5f\u5e38\u88ab\u79f0\u4e3a\u526f\u4f5c\u7528\uff1a<\/p>\n<ol>\n<li>\u4ee3\u7801\u4e2d\u542b\u6709\u8fdc\u7a0b\u8c03\u7528\uff0c\u65e0\u6cd5\u786e\u5b9a\u8fd9\u6b21\u8c03\u7528\u662f\u5426\u4f1a\u6210\u529f\uff1b<\/li>\n<li>\u542b\u6709\u968f\u673a\u6570\u751f\u6210\u903b\u8f91\uff0c\u5bfc\u81f4\u884c\u4e3a\u4e0d\u786e\u5b9a\uff1b<\/li>\n<li>\u6267\u884c\u7ed3\u679c\u548c\u5f53\u524d\u65e5\u671f\u6709\u5173\uff0c\u6bd4\u5982\u53ea\u6709\u5de5\u4f5c\u65e5\u7684\u65e9\u4e0a\uff0c\u95f9\u949f\u624d\u4f1a\u54cd\u8d77\uff1b<\/li>\n<\/ol>\n<p>\u597d\u5728\u6211\u4eec\u53ef\u4ee5\u7528\u4e00\u4e9b\u6280\u5de7\u5c06\u8fd9\u4e9b\u526f\u4f5c\u7528\u4ece\u6838\u5fc3\u903b\u8f91\u4e2d\u62bd\u79bb\u51fa\u6765\u3002<\/p>\n<p>\u201c\u5f15\u7528\u900f\u660e\u201d \u8981\u6c42\u51fd\u6570\u7684\u51fa\u53c2\u7531\u5165\u53c2\u552f\u4e00\u786e\u5b9a\uff0c\u4e4b\u524d\u7684\u4f8b\u5b50\u5bb9\u6613\u8ba9\u4eba\u4ea7\u751f\u8bef\u89e3\uff0c\u89c9\u5f97\u51fa\u53c2\u548c\u5165\u53c2\u4e00\u5b9a\u8981\u662f\u6570\u636e\uff0c\u8ba9\u6211\u4eec\u628a\u89c6\u91ce\u518d\u6253\u5f00\u4e00\u70b9\uff0c\u51fa\u5165\u53c2\u53ef\u4ee5\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u4e5f\u53ef\u4ee5\u662f\u5f15\u7528\u900f\u660e\u7684\u3002<\/p>\n<p>\u666e\u901a\u7684\u51fd\u6570\u53c8\u53ef\u4ee5\u79f0\u4f5c\u4e00\u9636\u51fd\u6570\uff0c\u800c\u63a5\u6536\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\uff0c\u6216\u8005\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\u7684\u51fd\u6570\u79f0\u4e3a<strong>\u9ad8\u9636\u51fd\u6570<\/strong>\uff0c\u9ad8\u9636\u51fd\u6570\u4e5f\u53ef\u4ee5\u662f\u5f15\u7528\u900f\u660e\u7684\u3002<\/p>\n<p>\u5bf9\u4e8e\u9ad8\u9636\u51fd\u6570 f(g) (g \u662f\u4e00\u4e2a\u51fd\u6570)\u6765\u8bf4\uff0c\u53ea\u8981\u5bf9\u4e8e\u7279\u5b9a\u7684\u51fd\u6570 g\uff0c\u8fd4\u56de\u903b\u8f91\u4e5f\u662f\u56fa\u5b9a\uff0c\u5b83\u5c31\u662f\u5f15\u7528\u900f\u660e\u7684\u4e86\uff0c \u800c\u4e0d\u7528\u5728\u4e4e\u53c2\u6570 g \u6216\u8005\u8fd4\u56de\u7684\u51fd\u6570\u662f\u5426\u6709\u526f\u4f5c\u7528\u3002\u5229\u7528\u8fd9\u4e2a\u7279\u6027\uff0c\u6211\u4eec\u5f88\u5bb9\u6613\u5c06\u4e00\u4e2a\u6709\u526f\u4f5c\u7528\u7684\u51fd\u6570\u8f6c\u6362\u4e3a\u4e00\u4e2a\u5f15\u7528\u900f\u660e\u7684\u9ad8\u9636\u51fd\u6570\u3002<\/p>\n<p>\u4e00\u4e2a\u5178\u578b\u7684\u62e5\u6709\u526f\u4f5c\u7528\u7684\u51fd\u6570\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"java\">      public int f() {\n        return ThreadLocalRandom.current().nextInt(100) + 1;\n    }<\/code><\/pre>\n<p>\u5b83\u751f\u6210\u4e86\u968f\u673a\u6570\u5e76\u4e14\u52a0 1\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u968f\u673a\u6570\uff0c\u5bfc\u81f4\u5b83\u4e0d\u53ef\u6d4b\u8bd5\u3002\u4f46\u662f\u6211\u4eec\u5c06\u5b83\u8f6c\u6362\u4e3a\u4e00\u4e2a\u53ef\u6d4b\u8bd5\u7684\u9ad8\u9636\u51fd\u6570\uff0c\u53ea\u8981\u5c06\u968f\u673a\u6570\u751f\u6210\u903b\u8f91\u4f5c\u4e3a\u4e00\u4e2a\u53c2\u6570\u4f20\u5165\uff0c\u5e76\u4e14\u8fd4\u56de\u4e00\u4e2a\u51fd\u6570\u5373\u53ef\uff1a<\/p>\n<pre><code class=\"java\">        public int g(Supplier&lt;Integer&gt; integerSupplier) {\n        return integerSupplier.get() + 1;\n    }<\/code><\/pre>\n<p>\u4e0a\u9762\u7684 g \u5c31\u662f\u4e00\u4e2a\u5f15\u7528\u900f\u660e\u7684\u51fd\u6570\uff0c\u53ea\u8981\u7ed9 g \u4f20\u9012\u4e00\u4e2a\u6570\u5b57\u751f\u6210\u5668\uff0c\u8fd4\u56de\u503c\u4e00\u5b9a\u662f\u4e00\u4e2a \u201c\u7528\u6570\u5b57\u751f\u6210\u5668\u751f\u6210\u4e00\u4e2a\u6570\u5b57\u5e76\u4e14\u52a01\u201d \u7684\u903b\u8f91\uff0c\u5e76\u4e14\u4e0d\u5b58\u5728\u5206\u652f\u6761\u4ef6\u548c\u8fb9\u754c\u60c5\u51b5\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u7528\u4f8b\u5373\u53ef\u8986\u76d6\uff1a<\/p>\n<pre><code class=\"java\">        public void testG() {\n        Supplier&lt;Integer&gt; result = g(() -&gt; 1);\n        assert result.get() == 2;\n    }<\/code><\/pre>\n<p>\u8fd9\u91cc\u6211\u867d\u7136\u4f7f\u7528\u4e86 Lambda \u8868\u8fbe\u5f0f\u7b80\u5316\u4ee3\u7801\uff0c\u4f46\u662f \u201c\u51fd\u6570\u201d \u5e76\u4e0d\u4ec5\u4ec5\u662f\u6307 Lambda \u8868\u8fbe\u5f0f\uff0cOOP \u4e2d\u7684\u5145\u8840\u6a21\u578b\u7684\u5bf9\u8c61\uff0c\u63a5\u53e3\u7b49\u7b49\uff0c\u53ea\u8981\u5176\u4e2d\u542b\u6709\u903b\u8f91\uff0c\u5b83\u4eec\u7684\u4f20\u9012\u548c\u8fd4\u56de\u90fd\u53ef\u4ee5\u770b\u4f5c \u201c\u51fd\u6570\u201d\u3002<\/p>\n<h3>\u7b2c\u4e00\u8f6e\u91cd\u6784<\/h3>\n<p>\u6211\u4eec\u672c\u7ae0\u56de\u5230\u5f00\u5934\u7684\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u7684\u4f8b\u5b50\uff0c\u7528\u4e0a\u4e00\u7ae0\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u5bf9\u5b83\u8fdb\u884c\u91cd\u6784\u3002<\/p>\n<p>\u90a3\u6bb5\u4ee3\u7801\u65e0\u6cd5\u6d4b\u8bd5\u7684\u7b2c\u4e00\u4e2a\u95ee\u9898\u5c31\u662f\u804c\u8d23\u4e0d\u6e05\u6670\uff0c\u5b83\u65e2\u505a\u6570\u636e\u4f20\u9012\uff0c\u53c8\u505a\u6570\u636e\u5904\u7406\u3002\u56e0\u6b64\u6211\u4eec\u8003\u8651\u5c06\u751f\u4ea7\u8005\u6d88\u8d39\u8005\u6570\u636e\u4f20\u9012\u7684\u4ee3\u7801\u5355\u72ec\u62bd\u53d6\u51fa\u6765\uff1a<\/p>\n<pre><code class=\"java\">         public &lt;T&gt; void  producerConsumerInner(Consumer&lt;Consumer&lt;T&gt;&gt; producer,\n                                           Consumer&lt;Supplier&lt;T&gt;&gt; consumer) {\n        BlockingQueue&lt;T&gt; blockingQueue = new LinkedBlockingQueue&lt;&gt;();\n        new Thread(() -&gt; producer.accept(blockingQueue::add)).start();\n        new Thread(() -&gt; consumer.accept(() -&gt; {\n            try {\n                return blockingQueue.take();\n            } catch (InterruptedException e) {\n                throw new RuntimeException(e);\n            }\n        })).start();\n    }<\/code><\/pre>\n<p>\u8fd9\u4e00\u6bb5\u4ee3\u7801\u7684\u804c\u8d23\u5c31\u5f88\u6e05\u6670\u4e86\uff0c\u6211\u4eec\u7ed9\u8fd9\u4e2a\u65b9\u6cd5\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u7684\u76ee\u6807\u4e5f\u5341\u5206\u660e\u786e\uff0c\u5373\u9a8c\u8bc1\u6570\u636e\u80fd\u591f\u6b63\u786e\u5730\u4ece\u751f\u4ea7\u8005\u4f20\u9012\u5230\u6d88\u8d39\u8005\u3002\u4f46\u662f\u5f88\u5feb\u6211\u4eec\u53c8\u9047\u5230\u4e86\u4e4b\u524d\u63d0\u5230\u7684\u7b2c\u4e8c\u4e2a\u95ee\u9898\uff0c\u5373\u5f02\u6b65\u7ebf\u7a0b\u4e0d\u53ef\u63a7\uff0c\u4f1a\u5bfc\u81f4\u5355\u6d4b\u6267\u884c\u7684\u4e0d\u7a33\u5b9a\uff0c\u7528\u4e0a\u4e00\u7ae0\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u5c06\u6267\u884c\u5668\u4f5c\u4e3a\u4e00\u4e2a\u5165\u53c2\u62bd\u79bb\u51fa\u53bb\uff1a<\/p>\n<pre><code class=\"java\">    public &lt;T&gt; void  producerConsumerInner(Executor executor,\n                                      Consumer&lt;Consumer&lt;T&gt;&gt; producer,\n                                      Consumer&lt;Supplier&lt;T&gt;&gt; consumer) {\n        BlockingQueue&lt;T&gt; blockingQueue = new LinkedBlockingQueue&lt;&gt;();\n        executor.execute(() -&gt; producer.accept(blockingQueue::add));\n        executor.execute(() -&gt; consumer.accept(() -&gt; {\n            try {\n                return blockingQueue.take();\n            } catch (InterruptedException e) {\n                throw new RuntimeException(e);\n            }\n        }));\n    }<\/code><\/pre>\n<p>\u8fd9\u65f6\u6211\u4eec\u5c31\u4e3a\u5b83\u5199\u4e00\u4e2a\u7a33\u5b9a\u7684\u5355\u5143\u6d4b\u8bd5\u4e86\uff1a<\/p>\n<pre><code class=\"java\">    private void testProducerConsumerInner() {\n        producerConsumerInner(Runnable::run,\n                (Consumer&lt;Consumer&lt;Integer&gt;&gt;) producer -&gt; {\n                    producer.accept(1);\n                    producer.accept(2);\n                },\n                consumer -&gt; {\n                    assert consumer.get() == 1;\n                    assert consumer.get() == 2;\n                });\n    }<\/code><\/pre>\n<p>\u53ea\u8981\u8fd9\u4e2a\u6d4b\u8bd5\u80fd\u591f\u901a\u8fc7\uff0c\u5c31\u80fd\u8bf4\u660e\u751f\u4ea7\u6d88\u8d39\u5728\u903b\u8f91\u4e0a\u662f\u6ca1\u6709\u95ee\u9898\u7684\u3002\u4e00\u4e2a\u770b\u8d77\u6765\u6bd4\u4e4b\u524d\u7684\u5206\u6bb5\u51fd\u6570\u590d\u6742\u5f88\u591a\u7684\u903b\u8f91\uff0c\u672c\u8d28\u4e0a\u5374\u53ea\u662f\u5b83\u5b9a\u4e49\u57df\u4e0a\u7684\u4e00\u4e2a\u6052\u7b49\u51fd\u6570\uff08\u56e0\u4e3a\u53ea\u8981\u4e00\u4e2a\u7528\u4f8b\u5c31\u80fd\u8986\u76d6\u5168\u90e8\u60c5\u51b5\uff09\uff0c\u662f\u4e0d\u662f\u5f88\u60ca\u8bb6\u3002    <\/p>\n<p>\u5982\u679c\u4e0d\u592a\u559c\u6b22\u4e0a\u8ff0\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b\u98ce\u683c\uff0c\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u5c06\u5176\u6539\u9020\u6210 OOP \u98ce\u683c\u7684\u62bd\u8c61\u7c7b<\/p>\n<pre><code class=\"java\">public abstract class ProducerConsumer&lt;T&gt; {\n\n    private final Executor executor;\n\n    private final BlockingQueue&lt;T&gt; blockingQueue;\n\n    public ProducerConsumer(Executor executor) {\n        this.executor = executor;\n        this.blockingQueue = new LinkedBlockingQueue&lt;&gt;();\n    }\n    \n    public void start() {\n        executor.execute(this::produce);\n        executor.execute(this::consume);\n    }\n\n    abstract void produce();\n\n    abstract void consume();\n\n    protected void produceInner(T item) {\n        blockingQueue.add(item);\n    }\n\n    protected T consumeInner() {\n        try {\n            return blockingQueue.take();\n        } catch (InterruptedException e) {\n            throw new RuntimeException(e);\n        }\n    }\n}<\/code><\/pre>\n<p>\u6b64\u65f6\u5355\u5143\u6d4b\u8bd5\u5c31\u4f1a\u50cf\u662f\u8fd9\u4e2a\u6837\u5b50\uff1a<\/p>\n<pre><code class=\"java\">    private void testProducerConsumerAbCls() {\n        new ProducerConsumer&lt;Integer&gt;(Runnable::run) {\n            @Override\n            void produce() {\n                produceInner(1);\n                produceInner(2);\n            }\n\n            @Override\n            void consume() {\n                assert consumeInner() == 1;\n                assert consumeInner() == 2;\n            }\n        }.start();\n    }<\/code><\/pre>\n<p>\u4e3b\u51fd\u6570<\/p>\n<pre><code class=\"java\"> public void producerConsumer() {\n        new ProducerConsumer&lt;Integer&gt;(Executors.newFixedThreadPool(2)) {\n            @Override\n            void produce() {\n                for (int i = 0; i &lt; 10; i++) {\n                    produceInner(i + ThreadLocalRandom.current().nextInt(100));\n                }\n            }\n\n            @Override\n            void consume() {\n                while (true) {\n                    Integer result = consumeInner();\n                    System.out.println(result);\n                }\n            }\n        }.start();\n    }<\/code><\/pre>\n<h3>\u7b2c\u4e8c\u8f6e\u91cd\u6784<\/h3>\n<p>\u5728\u7b2c\u4e00\u8f6e\u91cd\u6784\u4e2d\uff0c\u6211\u4eec\u4ec5\u4ec5\u4fdd\u969c\u4e86\u6570\u636e\u4f20\u9012\u903b\u8f91\u662f\u6b63\u786e\u7684\uff0c\u5728\u7b2c\u4e8c\u8f6e\u91cd\u6784\u4e2d\uff0c\u6211\u4eec\u8fd8\u5c06\u8fdb\u4e00\u6b65\u6269\u5927\u53ef\u6d4b\u8bd5\u7684\u8303\u56f4\u3002<\/p>\n<p>\u4ee3\u7801\u4e2d\u5f71\u54cd\u6211\u4eec\u8fdb\u4e00\u6b65\u6269\u5927\u6d4b\u8bd5\u8303\u56f4\u56e0\u7d20\u8fd8\u6709\u4e24\u4e2a\uff1a<\/p>\n<ul>\n<li>\u968f\u673a\u6570\u751f\u6210\u903b\u8f91<\/li>\n<li>\u6253\u5370\u903b\u8f91<\/li>\n<\/ul>\n<p>\u53ea\u8981\u5c06\u8fd9\u4e24\u4e2a\u903b\u8f91\u50cf\u4e4b\u524d\u4e00\u6837\u62bd\u51fa\u6765\u5373\u53ef\uff1a<\/p>\n<pre><code class=\"java\">public class NumberProducerConsumer extends ProducerConsumer&lt;Integer&gt; {\n\n    private final Supplier&lt;Integer&gt; numberGenerator;\n\n    private final Consumer&lt;Integer&gt; numberConsumer;\n\n    public NumberProducerConsumer(Executor executor,\n                                  Supplier&lt;Integer&gt; numberGenerator,\n                                  Consumer&lt;Integer&gt; numberConsumer) {\n        super(executor);\n        this.numberGenerator = numberGenerator;\n        this.numberConsumer = numberConsumer;\n    }\n\n    @Override\n    void produce() {\n        for (int i = 0; i &lt; 10; i++) {\n            produceInner(i + numberGenerator.get());\n        }\n    }\n\n    @Override\n    void consume() {\n        while (true) {\n            Integer result = consumeInner();\n            numberConsumer.accept(result);\n        }\n    }\n}<\/code><\/pre>\n<p>\u8fd9\u6b21\u91c7\u7528 OOP \u548c \u51fd\u6570\u5f0f \u6df7\u7f16\u7684\u98ce\u683c\uff0c\u4e5f\u53ef\u4ee5\u8003\u8651\u5c06 numberGenerator \u548c numberConsumer \u4e24\u4e2a\u65b9\u6cd5\u53c2\u6570\u6539\u6210\u62bd\u8c61\u65b9\u6cd5\uff0c\u8fd9\u6837\u5c31\u662f\u66f4\u52a0\u7eaf\u7cb9\u7684 OOP\u3002<\/p>\n<p>\u5b83\u4e5f\u53ea\u9700\u8981\u4e00\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u5373\u53ef\u5b9e\u73b0\u5b8c\u5168\u8986\u76d6\uff1a<\/p>\n<pre><code class=\"java\">        private void testProducerConsumerInner2() {\n        AtomicInteger expectI = new AtomicInteger();\n        producerConsumerInner2(Runnable::run, () -&gt; 0, i -&gt; {\n            assert i == expectI.getAndIncrement();\n        });\n        assert expectI.get() == 10;\n    }<\/code><\/pre>\n<p>\u6b64\u65f6\u4e3b\u51fd\u6570\u53d8\u6210\uff1a<\/p>\n<pre><code class=\"java\">        public void producerConsumer() {\n        new NumberProducerConsumer(Executors.newFixedThreadPool(2),\n                () -&gt; ThreadLocalRandom.current().nextInt(100),\n                System.out::println).start();\n    }<\/code><\/pre>\n<p>\u7ecf\u8fc7\u4e24\u8f6e\u91cd\u6784\uff0c\u6211\u4eec\u5c06\u4e00\u4e2a\u5f88\u968f\u610f\u7684\u9762\u6761\u4ee3\u7801\u91cd\u6784\u6210\u4e86\u5f88\u4f18\u96c5\u7684\u7ed3\u6784\uff0c\u9664\u4e86\u66f4\u52a0\u53ef\u6d4b\u8bd5\u5916\uff0c\u4ee3\u7801\u4e5f\u66f4\u52a0\u7b80\u6d01\u62bd\u8c61\uff0c\u53ef\u590d\u7528\uff0c\u8fd9\u4e9b\u90fd\u662f\u9762\u5411\u5355\u6d4b\u91cd\u6784\u6240\u5e26\u6765\u7684\u9644\u52a0\u597d\u5904\u3002<\/p>\n<p>\u4f60\u53ef\u80fd\u4f1a\u6ce8\u610f\u5230\uff0c\u5373\u4f7f\u7ecf\u8fc7\u4e86\u4e24\u8f6e\u91cd\u6784\uff0c\u6211\u4eec\u4f9d\u65e7\u4e0d\u4f1a\u76f4\u63a5\u5bf9\u4e3b\u51fd\u6570 producerConsumer \u8fdb\u884c\u6d4b\u8bd5\uff0c\u800c\u53ea\u662f\u65e0\u9650\u63a5\u8fd1\u8986\u76d6\u91cc\u9762\u7684\u5168\u90e8\u903b\u8f91\uff0c\u56e0\u4e3a\u6211\u8ba4\u4e3a\u5b83\u4e0d\u5728\u201c\u6d4b\u8bd5\u7684\u8fb9\u754c\u201d\u5185\uff0c\u6211\u66f4\u503e\u5411\u4e8e\u7528\u96c6\u6210\u6d4b\u8bd5\u53bb\u6d4b\u8bd5\u5b83\uff0c\u96c6\u6210\u6d4b\u8bd5\u5219\u4e0d\u5728\u672c\u7bc7\u6587\u7ae0\u8ba8\u8bba\u7684\u8303\u56f4\u5185\u3002\u4e0b\u4e00\u7ae0\u5219\u91cd\u70b9\u8ba8\u8bba\u6d4b\u8bd5\u8fb9\u754c\u7684\u95ee\u9898\u3002<\/p>\n<h2>\u5355\u5143\u6d4b\u8bd5\u7684\u8fb9\u754c<\/h2>\n<p>\u8fb9\u754c\u5185\u7684\u4ee3\u7801\u90fd\u662f\u5355\u5143\u6d4b\u8bd5\u53ef\u4ee5\u6709\u6548\u8986\u76d6\u5230\u7684\u4ee3\u7801\uff0c\u800c\u8fb9\u754c\u5916\u7684\u4ee3\u7801\u5219\u662f\u6ca1\u6709\u5355\u5143\u6d4b\u8bd5\u4fdd\u969c\u7684\u3002<\/p>\n<p>\u4e0a\u4e00\u7ae0\u6240\u63cf\u8ff0\u7684\u91cd\u6784\u8fc7\u7a0b\u672c\u8d28\u4e0a\u5c31\u662f\u4e00\u4e2a\u5728\u63a2\u7d22\u4e2d\u4e0d\u65ad\u6269\u5927\u6d4b\u8bd5\u8fb9\u754c\u7684\u8fc7\u7a0b\u3002\u4f46\u662f\u5355\u5143\u6d4b\u8bd5\u7684\u8fb9\u754c\u662f\u4e0d\u53ef\u80fd\u65e0\u9650\u6269\u5927\u7684\uff0c\u56e0\u4e3a\u5b9e\u9645\u7684\u5de5\u7a0b\u4e2d\u5fc5\u7136\u6709\u5927\u91cf\u7684\u4e0d\u53ef\u6d4b\u8bd5\u90e8\u5206\uff0c\u6bd4\u5982 RPC \u8c03\u7528\uff0c\u53d1\u6d88\u606f\uff0c\u6839\u636e\u5f53\u524d\u65f6\u95f4\u505a\u8ba1\u7b97\u7b49\u7b49\uff0c\u5b83\u4eec\u5fc5\u7136\u5f97\u5728\u67d0\u4e2a\u5730\u65b9\u4f20\u5165\u6d4b\u8bd5\u8fb9\u754c\uff0c\u800c\u8fd9\u4e00\u90e8\u5206\u5c31\u662f\u4e0d\u53ef\u6d4b\u8bd5\u7684\u3002<\/p>\n<p>\u7406\u60f3\u7684\u6d4b\u8bd5\u8fb9\u754c\u5e94\u8be5\u662f\u8fd9\u6837\u7684\uff0c\u7cfb\u7edf\u4e2d\u6240\u6709\u6838\u5fc3\u590d\u6742\u7684\u903b\u8f91\u5168\u90e8\u5305\u542b\u5728\u4e86\u8fb9\u754c\u5185\u90e8\uff0c\u7136\u540e\u8fb9\u754c\u5916\u90fd\u662f\u4e0d\u5305\u542b\u903b\u8f91\u7684\uff0c\u975e\u5e38\u7b80\u5355\u7684\u4ee3\u7801\uff0c\u6bd4\u5982\u5c31\u662f\u4e00\u884c\u63a5\u53e3\u8c03\u7528\u3002\u8fd9\u6837\u4efb\u4f55\u5bf9\u4e8e\u7cfb\u7edf\u7684\u6539\u52a8\u90fd\u53ef\u4ee5\u5728\u5355\u5143\u6d4b\u8bd5\u4e2d\u5c31\u5f97\u5230\u5feb\u901f\u4e14\u5145\u5206\u7684\u9a8c\u8bc1\uff0c\u96c6\u6210\u6d4b\u8bd5\u65f6\u53ea\u9700\u8981\u7b80\u5355\u6d4b\u8bd5\u4e0b\u5373\u53ef\uff0c\u5982\u679c\u51fa\u73b0\u95ee\u9898\uff0c\u4e00\u5b9a\u662f\u5bf9\u5916\u90e8\u63a5\u53e3\u7684\u7406\u89e3\u6709\u8bef\uff0c\u800c\u4e0d\u662f\u7cfb\u7edf\u5185\u90e8\u6539\u9519\u4e86\u3002<\/p>\n<p>\u6e05\u6670\u7684\u5355\u5143\u6d4b\u8bd5\u8fb9\u754c\u5212\u5206\u6709\u5229\u4e8e\u6784\u5efa\u66f4\u52a0\u7a33\u5b9a\u7684\u7cfb\u7edf\u6838\u5fc3\u4ee3\u7801\uff0c\u56e0\u4e3a\u6211\u4eec\u5728\u63a8\u8fdb\u6d4b\u8bd5\u8fb9\u754c\u7684\u8fc7\u7a0b\u4e2d\u4f1a\u4e0d\u65ad\u5730\u5c06\u526f\u4f5c\u7528\u4ece\u6838\u5fc3\u4ee3\u7801\u4e2d\u5265\u79bb\u51fa\u53bb\uff0c\u6700\u7ec8\u4f1a\u5f97\u5230\u4e00\u4e2a\u5b8c\u6574\u4e14\u53ef\u6d4b\u8bd5\u7684\u6838\u5fc3\uff0c\u5c31\u5982\u540c\u4e0b\u56fe\u7684\u5bf9\u6bd4\u4e00\u6837\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/Users\/yuekai\/Pictures\/markdown\/ut1.png\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u597d\u4ee3\u7801\u4ece\u6765\u90fd\u4e0d\u662f\u4e00\u8e74\u800c\u5c31\u7684\uff0c\u90fd\u662f\u5148\u5199\u4e00\u4e2a\u5927\u6982\uff0c\u7136\u540e\u9010\u6e10\u8fed\u4ee3\u548c\u91cd\u6784\u7684\uff0c\u4ece\u8fd9\u4e2a\u89d2\u5ea6\u6765\u8bf4\uff0c\u91cd\u6784\u522b\u4eba\u7684\u4ee3\u7801\u548c\u5199\u65b0\u4ee3\u7801\u6ca1\u6709\u5f88\u5927\u7684\u533a\u522b\u3002<\/p>\n<p>\u4ece\u4e0a\u9762\u7684\u5185\u5bb9\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u603b\u7ed3\u51fa\u4e00\u4e2a\u7b80\u5355\u7684\u91cd\u6784\u5de5\u4f5c\u6d41\uff1a<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/Users\/yuekai\/Pictures\/markdown\/ut2.png\" alt=\"\u56fe\u7247\" title=\"\u56fe\u7247\" loading=\"lazy\"><\/p>\n<p>\u6309\u7167\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u5c31\u80fd\u591f\u9010\u6b65\u8fed\u4ee3\u51fa\u4e00\u5957\u4f18\u96c5\u4e14\u53ef\u6d4b\u8bd5\u7684\u4ee3\u7801\uff0c\u5373\u4f7f\u56e0\u4e3a\u65f6\u95f4\u95ee\u9898\u6ca1\u6709\u8fed\u4ee3\u5230\u7406\u60f3\u7684\u6d4b\u8bd5\u8fb9\u754c\uff0c\u4e5f\u4f1a\u62e5\u6709\u4e00\u5957\u5927\u90e8\u5206\u53ef\u6d4b\u8bd5\u7684\u4ee3\u7801\uff0c\u540e\u4eba\u53ef\u4ee5\u5728\u524d\u4eba\u7528\u4f8b\u7684\u57fa\u7840\u4e0a\uff0c\u7ee7\u7eed\u6269\u5927\u6d4b\u8bd5\u8fb9\u754c\u3002<\/p>\n<h2>\u8fc7\u5ea6\u8bbe\u8ba1<\/h2>\n<p>\u518d\u8c08\u4e00\u8c08\u8fc7\u5ea6\u8bbe\u8ba1\u7684\u95ee\u9898\u3002<\/p>\n<p>\u6309\u7167\u672c\u6587\u7684\u65b9\u6cd5\u662f\u4e0d\u53ef\u80fd\u51fa\u73b0\u8fc7\u5ea6\u8bbe\u8ba1\u7684\u95ee\u9898\uff0c\u8fc7\u5ea6\u8bbe\u8ba1\u4e00\u822c\u53d1\u751f\u5728\u4e3a\u4e86\u8bbe\u8ba1\u800c\u8bbe\u8ba1\uff0c\u751f\u642c\u786c\u5957\u8bbe\u8ba1\u6a21\u5f0f\u7684\u573a\u5408\uff0c\u4f46\u662f\u672c\u6587\u7684\u6240\u6709\u8bbe\u8ba1\u90fd\u6709\u4e00\u4e2a\u660e\u786e\u7684\u76ee\u7684&#8211;\u63d0\u5347\u4ee3\u7801\u7684\u201c\u53ef\u6d4b\u8bd5\u6027\u201d\uff0c\u6240\u6709\u7684\u6280\u5de7\u90fd\u662f\u5728\u8fc7\u7a0b\u4e2d\u65e0\u610f\u4f7f\u7528\u7684\uff0c\u4e0d\u5b58\u5728\u751f\u786c\u7684\u95ee\u9898\u3002<\/p>\n<p>\u800c\u4e14\u8fc7\u5ea6\u8bbe\u8ba1\u4f1a\u5bfc\u81f4\u201c\u53ef\u6d4b\u8bd5\u6027\u201d\u53d8\u5dee\uff0c\u8fc7\u5ea6\u8bbe\u8ba1\u7684\u4ee3\u7801\u5e38\u5e38\u662f\u628a\u81ea\u5df1\u7684\u6838\u5fc3\u903b\u8f91\u90fd\u7ed9\u62bd\u8c61\u6389\u4e86\uff0c\u5bfc\u81f4\u5355\u5143\u6d4b\u8bd5\u65e0\u5904\u53ef\u6d4b\u3002\u5982\u679c\u53d1\u73b0\u4e00\u6bb5\u4ee3\u7801\u201c\u5199\u5f97\u5f88\u7b80\u6d01\uff0c\u5f88\u62bd\u8c61\uff0c\u4f46\u662f\u5c31\u662f\u4e0d\u597d\u5199\u5355\u5143\u6d4b\u8bd5\u201d\uff0c\u90a3\u4e48\u5927\u6982\u7387\u662f\u88ab\u8fc7\u5ea6\u8bbe\u8ba1\u4e86\u3002<\/p>\n<h2>\u548cTDD\u7684\u533a\u522b<\/h2>\n<p>\u672c\u6587\u5230\u8fd9\u91cc\u90fd\u8fd8\u6ca1\u6709\u63d0\u53ca\u5230 TDD\uff0c\u4f46\u662f\u4e0a\u6587\u4e2d\u9610\u8ff0\u7684\u5185\u5bb9\u80af\u5b9a\u8ba9\u4e0d\u5c11\u8bfb\u8005\u60f3\u5230\u4e86\u8fd9\u4e2a\u540d\u8bcd\uff0cTDD \u662f \u201c\u6d4b\u8bd5\u9a71\u52a8\u5f00\u53d1\u201d 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TDD \u601d\u60f3\u4e0a\u6765\u8bf4\uff0c\u8fd9\u7bc7\u6587\u7ae0\u7684\u603b\u4f53\u601d\u8def\u548c TDD \u662f\u5dee\u4e0d\u591a\u7684\uff0c\u6216\u8005\u6807\u9898\u4e5f\u53ef\u4ee5\u6539\u53eb\u505a \u201cTDD \u5b9e\u8df5\u201d\u3002<\/p>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042279814\">https:\/\/segmentfault.com\/a\/1190000042279814<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u8a00 \u91cd\u6784\u4ee3\u7801\u65f6\uff0c\u6211\u4eec\u5e38\u5e38\u7ea0\u7ed3\u4e8e\u8fd9\u6837\u7684\u95ee\u9898\uff1a \u9700\u8981\u8fdb\u4e00\u6b65\u62bd\u8c61\u5417\uff1f\u4f1a\u4e0d\u4f1a\u5bfc\u81f4\u8fc7\u5ea6\u8bbe\u8ba1\uff1f \u5982\u679c\u9700\u8981\u8fdb\u4e00\u6b65\u62bd\u8c61\u7684\u8bdd\uff0c [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006124","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006124"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006124\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}