{"id":10008132,"date":"2023-08-22T12:59:56","date_gmt":"2023-08-22T04:59:56","guid":{"rendered":"https:\/\/blog.itmax.cn\/?p=10008132"},"modified":"2023-08-22T12:59:56","modified_gmt":"2023-08-22T04:59:56","slug":"%e5%90%8c%e4%ba%8b%e5%86%99%e4%ba%86%e4%b8%aa%e6%83%8a%e5%a4%a9-bug%ef%bc%8c%e8%bf%98%e4%b8%8d%e5%ae%b9%e6%98%93%e8%a2%ab%e5%8f%91%e7%8e%b0%e3%80%82%e3%80%82","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10008132","title":{"rendered":"\u540c\u4e8b\u5199\u4e86\u4e2a\u60ca\u5929 bug\uff0c\u8fd8\u4e0d\u5bb9\u6613\u88ab\u53d1\u73b0\u3002\u3002"},"content":{"rendered":"

\u4f5c\u8005\uff1a\u6811\u6d1e\u541b \/
\u94fe\u63a5\uff1ahttps:\/\/juejin.cn\/post\/7064376361334358046<\/a><\/p>\n

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\u4ece6\u70b932\u5206\u5f00\u59cb\u5c11\u91cf\u7528\u6237\u8bbf\u95eeapp\u65f6\u4f1a\u51fa\u73b0\u9996\u9875\u8bbf\u95ee\u5f02\u5e38\uff0c\u52307\u70b920\u5206\u9996\u9875\u670d\u52a1\u5927\u89c4\u6a21\u4e0d\u53ef\u7528\uff0c7\u70b936\u5206\u95ee\u9898\u89e3\u51b3\u3002<\/p>\n

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6:58 \u53d1\u73b0\u62a5\u8b66\uff0c\u540c\u65f6\u53d1\u73b0\u7fa4\u91cc\u53cd\u9988\u9996\u9875\u51fa\u73b0\u7f51\u7edc\u7e41\u5fd9\uff0c\u8003\u8651\u5230\u524d\u51e0\u65e5<\/strong>\u665a\u4e0a\u95e8\u5e97\u5217\u8868\u670d\u52a1\u4e0a\u7ebf\u53d1\u5e03\u8fc7\uff0c\u6240\u4ee5\u8003\u8651\u56de\u6eda\u4ee3\u7801\u7d27\u6025\u5904\u7406\u95ee\u9898\u3002<\/p>\n

7:07 \u5f00\u59cb\u5148\u540e\u8054\u7cfbXXX\u67e5\u770b\u89e3\u51b3\u95ee\u9898\u3002<\/p>\n

7:36 \u4ee3\u7801\u56de\u6eda\u5b8c\uff0c\u670d\u52a1\u6062\u590d\u6b63\u5e38\u3002<\/p>\n

\u4e8b\u6545\u6839\u672c\u539f\u56e0-\u4e8b\u6545\u4ee3\u7801\u6a21\u62df<\/h2>\n
public static void test() throws InterruptedException, ExecutionException {\n    Executor executor = Executors.newFixedThreadPool(3);\n    CompletionService<String> service = new ExecutorCompletionService<>(executor);\n        service.submit(new Callable<String>() {\n            @Override\n            public String call() throws Exception {\n                return "HelloWorld--" + Thread.currentThread().getName();\n            }\n        });\n}<\/code><\/pre>\n
\u6839\u6e90\u5c31\u5728\u4e8eExecutorCompletionService\u7ed3\u679c\u6ca1 \u8c03\u7528take\uff0cpoll\u65b9\u6cd5\u3002<\/strong><\/p>\n
\u6b63\u786e\u7684\u5199\u6cd5\u5982\u4e0b\u6240\u793a\uff1a<\/strong><\/p>\n
public static void test() throws InterruptedException, ExecutionException {\n    Executor executor = Executors.newFixedThreadPool(3);\n    CompletionService<String> service = new ExecutorCompletionService<>(executor);\n    service.submit(new Callable<String>() {\n        @Override\n        public String call() throws Exception {\n            return "HelloWorld--" + Thread.currentThread().getName();\n        }\n    });\n    service.take().get();\n}<\/code><\/pre>\n
\u4e00\u884c\u4ee3\u7801\u5f15\u53d1\u7684\u8840\u6848\uff0c\u800c\u4e14\u4e0d\u5bb9\u6613\u88ab\u53d1\u73b0\uff0c\u56e0\u4e3aoom\u662f\u4e00\u4e2a\u5185\u5b58\u7f13\u6162\u589e\u957f\u7684\u8fc7\u7a0b\uff0c\u7a0d\u5fae\u7c97\u5fc3\u5927\u610f\u5c31\u4f1a\u5ffd\u7565\uff0c\u5982\u679c\u662f\u8fd9\u4e2a\u4ee3\u7801\u5757\u7684\u8c03\u7528\u91cf\u5c11\u7684\u8bdd\uff0c\u5f88\u53ef\u80fd\u51e0\u5929\u751a\u81f3\u51e0\u4e2a\u6708\u540e\u66b4\u96f7\u3002<\/p>\n
\u64cd\u4f5c\u4eba\u56de\u6edaor\u91cd\u542f\u670d\u52a1\u5668\u786e\u5b9e\u662f\u6700\u5feb\u7684\u65b9\u5f0f\uff0c\u4f46\u662f\u5982\u679c\u4e0d\u662f\u4e8b\u540e\u5feb\u901f\u5206\u6790\u51faoom\u7684\u4ee3\u7801\uff0c\u800c\u4e14\u4e0d\u5de7\u56de\u6eda\u7684\u7248\u672c\u4e5f\u662f\u5e26oom\u4ee3\u7801\u7684\uff0c\u5c31\u6bd4\u8f83\u60b2\u50ac\u4e86\uff0c\u5982\u521a\u624d\u6240\u8bf4\uff0c\u6d41\u91cf\u5c0f\u4e86\uff0c\u56de\u6eda\u6216\u8005\u91cd\u542f\u90fd\u53ef\u4ee5\u91ca\u653e\u5185\u5b58\uff1b\u4f46\u662f\u6d41\u91cf\u5927\u7684\u60c5\u51b5\u4e0b\uff0c\u9664\u975e\u56de\u6eda\u5230\u6b63\u5e38\u7684\u7248\u672c\uff0c\u5426\u5219GG\u3002<\/p>\n
\u63a8\u8350\u4e00\u4e2a\u5f00\u6e90\u514d\u8d39\u7684 Spring Boot \u5b9e\u6218\u9879\u76ee\uff1ahttps:\/\/github.com\/javastacks\/spring-boot-best-practice<\/a><\/p>\n
\u63a2\u8be2\u95ee\u9898\u7684\u6839\u6e90<\/h2>\n
\u4e3a\u4e86\u66f4\u597d\u7684\u7406\u89e3ExecutorCompletionService\u7684 \u201c\u5957\u8def\u201d \u6211\u4eec\u7528 ExecutorService\u6765\u4f5c\u4e3a\u5bf9\u6bd4\uff0c\u53ef\u4ee5\u8ba9\u6211\u4eec\u66f4\u597d\u7684\u6e05\u695a\uff0c\u4ec0\u4e48\u573a\u666f\u4e0b\u7528ExecutorCompletionService\u3002<\/p>\n
\u5148\u770bExecutorService\u4ee3\u7801\uff08\u5efa\u8baedown\u4e0b\u6765\u8dd1\u4e00\u8dd1\uff09<\/strong><\/p>\n
public static void test1() throws Exception{\n    ExecutorService executorService = Executors.newCachedThreadPool();\n    ArrayList<Future<String>> futureArrayList = new ArrayList<>();\n    System.out.println("\u516c\u53f8\u8ba9\u4f60\u901a\u77e5\u5927\u5bb6\u805a\u9910 \u4f60\u5f00\u8f66\u53bb\u63a5\u4eba");\n    Future<String> future10 = executorService.submit(() -> {\n        System.out.println("\u603b\u88c1\uff1a\u6211\u5728\u5bb6\u4e0a\u5927\u53f7 \u6211\u6700\u8fd1\u62c9\u809a\u5b50\u6bd4\u8f83\u6162 \u8981\u8e721\u4e2a\u5c0f\u65f6\u624d\u80fd\u51fa\u6765 \u4f60\u7b49\u4f1a\u6765\u63a5\u6211\u5427");\n        TimeUnit.SECONDS.sleep(10);\n        System.out.println("\u603b\u88c1\uff1a1\u5c0f\u65f6\u4e86 \u6211\u4e0a\u5b8c\u5927\u53f7\u4e86\u3002\u4f60\u6765\u63a5\u5427");\n        return "\u603b\u88c1\u4e0a\u5b8c\u5927\u53f7\u4e86";\n\n    });\n    futureArrayList.add(future10);\n    Future<String> future3 = executorService.submit(() -> {\n        System.out.println("\u7814\u53d1\uff1a\u6211\u5728\u5bb6\u4e0a\u5927\u53f7 \u6211\u6bd4\u8f83\u5feb \u8981\u8e723\u5206\u949f\u5c31\u53ef\u4ee5\u51fa\u6765 \u4f60\u7b49\u4f1a\u6765\u63a5\u6211\u5427");\n        TimeUnit.SECONDS.sleep(3);\n        System.out.println("\u7814\u53d1\uff1a3\u5206\u949f \u6211\u4e0a\u5b8c\u5927\u53f7\u4e86\u3002\u4f60\u6765\u63a5\u5427");\n        return "\u7814\u53d1\u4e0a\u5b8c\u5927\u53f7\u4e86";\n    });\n    futureArrayList.add(future3);\n    Future<String> future6 = executorService.submit(() -> {\n        System.out.println("\u4e2d\u5c42\u7ba1\u7406\uff1a\u6211\u5728\u5bb6\u4e0a\u5927\u53f7  \u8981\u8e7210\u5206\u949f\u5c31\u53ef\u4ee5\u51fa\u6765 \u4f60\u7b49\u4f1a\u6765\u63a5\u6211\u5427");\n        TimeUnit.SECONDS.sleep(6);\n        System.out.println("\u4e2d\u5c42\u7ba1\u7406\uff1a10\u5206\u949f \u6211\u4e0a\u5b8c\u5927\u53f7\u4e86\u3002\u4f60\u6765\u63a5\u5427");\n        return "\u4e2d\u5c42\u7ba1\u7406\u4e0a\u5b8c\u5927\u53f7\u4e86";\n    });\n    futureArrayList.add(future6);\n    TimeUnit.SECONDS.sleep(1);\n    System.out.println("\u90fd\u901a\u77e5\u5b8c\u4e86,\u7b49\u7740\u63a5\u5427\u3002");\n    try {\n        for (Future<String> future : futureArrayList) {\n            String returnStr = future.get();\n            System.out.println(returnStr + "\uff0c\u4f60\u53bb\u63a5\u4ed6");\n        }\n        Thread.currentThread().join();\n    } catch (Exception e) {\n        e.printStackTrace();\n    }\n}<\/code><\/pre>\n
\u4e09\u4e2a\u4efb\u52a1\uff0c\u6bcf\u4e2a\u4efb\u52a1\u6267\u884c\u65f6\u95f4\u5206\u522b\u662f 10s\u30013s\u30016s \u3002\u901a\u8fc7JDK\u7ebf\u7a0b\u6c60\u7684 submit \u63d0\u4ea4\u8fd9\u4e09\u4e2a Callable\u7c7b\u578b\u7684\u4efb\u52a1\u3002<\/p>\n