{"id":29257,"date":"2024-03-18T20:29:38","date_gmt":"2024-03-18T11:29:38","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ae%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%83%97%e3%83%bc%e3%83%ab%e3%81%ae%e7%8a%b6%e6%85%8b%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e7%a2%ba%e8%aa%8d%e3%81%97%e3%81%be\/"},"modified":"2024-03-22T20:33:36","modified_gmt":"2024-03-22T11:33:36","slug":"java%e3%81%ae%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%83%97%e3%83%bc%e3%83%ab%e3%81%ae%e7%8a%b6%e6%85%8b%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e7%a2%ba%e8%aa%8d%e3%81%97%e3%81%be","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%ae%e3%82%b9%e3%83%ac%e3%83%83%e3%83%89%e3%83%97%e3%83%bc%e3%83%ab%e3%81%ae%e7%8a%b6%e6%85%8b%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e7%a2%ba%e8%aa%8d%e3%81%97%e3%81%be\/","title":{"rendered":"Java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u306f\u3069\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3057\u307e\u3059\u304b\uff1f"},"content":{"rendered":"

Java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001ThreadPoolExecutor\u30af\u30e9\u30b9\u306e\u3044\u304f\u3064\u304b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u306e\u3044\u304f\u3064\u304b\u3067\u3059\u3002<\/p>\n

    \n
  1. \u30d7\u30fc\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b\u3002<\/li>\n
  2. \u30a2\u30af\u30c6\u30a3\u30d6\u306a\u6570\u3092\u53d6\u5f97\u3059\u308b\u3002<\/li>\n
  3. \u5b8c\u4e86\u3057\u305f\u30bf\u30b9\u30af\u306e\u4ef6\u6570\u3092\u53d6\u5f97\u3059\u308b\u3002<\/li>\n
  4. \u30bf\u30b9\u30af\u306e\u6570\u3092\u53d6\u5f97\u3059\u308b\u3002<\/li>\n
  5. \u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u3055\u308c\u307e\u3057\u305f\u304b\uff1f<\/li>\n
  6. \u7d42\u4e86\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n<\/ol>\n

    \u305d\u308c\u306b\u52a0\u3048\u3066\u3001java.util.concurrent.ThreadPoolExecutor\u30af\u30e9\u30b9\u306etoString()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u8a73\u7d30\u60c5\u5831\u3092\u51fa\u529b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u73fe\u5728\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u30b3\u30a2\u30b9\u30ec\u30c3\u30c9\u6570\u3001\u6700\u5927\u30b9\u30ec\u30c3\u30c9\u6570\u3001\u30ef\u30fc\u30af\u30ad\u30e5\u30fc\u306e\u30b5\u30a4\u30ba\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n

    \u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\uff0c\u5c55\u793a\u4e86\u5982\u4f55\u67e5\u770b\u7ebf\u7a0b\u6c60\u7684\u72b6\u6001\uff1a<\/p>\n

    import<\/span> java.util.concurrent.ExecutorService;\r\nimport<\/span> java.util.concurrent.Executors;\r\n\r\npublic<\/span> class<\/span> ThreadPoolStatusExample<\/span> {\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(String[] args)<\/span> {\r\n        ExecutorService<\/span> executorService<\/span> =<\/span> Executors.newFixedThreadPool(5<\/span>);\r\n        \r\n        \/\/ \u63d0\u4ea4\u4e00\u4e9b\u4efb\u52a1\u7ed9\u7ebf\u7a0b\u6c60<\/span>\r\n        for<\/span> (int<\/span> i<\/span> =<\/span> 0<\/span>; i < 10<\/span>; i++) {\r\n            executorService.execute(() -> {\r\n                try<\/span> {\r\n                    Thread.sleep(1000<\/span>);\r\n                    System.out.println(\"Task executed by thread: \"<\/span> + Thread.currentThread().getName());\r\n                } catch<\/span> (InterruptedException e) {\r\n                    e.printStackTrace();\r\n                }\r\n            });\r\n        }\r\n        \r\n        \/\/ \u8f93\u51fa\u7ebf\u7a0b\u6c60\u7684\u72b6\u6001<\/span>\r\n        System.out.println(\"Pool Size: \"<\/span> + ((ThreadPoolExecutor) executorService).getPoolSize());\r\n        System.out.println(\"Active Count: \"<\/span> + ((ThreadPoolExecutor) executorService).getActiveCount());\r\n        System.out.println(\"Completed Task Count: \"<\/span> + ((ThreadPoolExecutor) executorService).getCompletedTaskCount());\r\n        System.out.println(\"Task Count: \"<\/span> + ((ThreadPoolExecutor) executorService).getTaskCount());\r\n        System.out.println(\"Is Shut Down: \"<\/span> + ((ThreadPoolExecutor) executorService).isShutdown());\r\n        System.out.println(\"Is Terminated: \"<\/span> + ((ThreadPoolExecutor) executorService).isTerminated());\r\n        \r\n        \/\/ \u5173\u95ed\u7ebf\u7a0b\u6c60<\/span>\r\n        executorService.shutdown();\r\n    }\r\n}\r\n<\/code><\/pre>\n
    \u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u3092\u4f5c\u6210\u3057\u30015\u3064\u306e\u56fa\u5b9a\u30b9\u30ec\u30c3\u30c9\u6570\u3092\u6301\u3061\u3001\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306b10\u500b\u306e\u30bf\u30b9\u30af\u3092\u63d0\u51fa\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001ThreadPoolExecutor\u578b\u306b\u30ad\u30e3\u30b9\u30c8\u3057\u3066\u3001\u95a2\u9023\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u60c5\u5831\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001shutdown()\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u3092\u9589\u3058\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
    Java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001ThreadPoolExecutor\u30af\u30e9\u30b9\u306e\u3044\u304f\u3064\u304b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u306e\u3044\u304f\u3064\u304b\u3067\u3059\u3002 \u30d7\u30fc\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b\u3002 \u30a2\u30af\u30c6\u30a3\u30d6\u306a […]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-29257","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nJava\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u306f\u3069\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3057\u307e\u3059\u304b\uff1f - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u306f\u3069\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3057\u307e\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u306f\u3069\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3057\u307e\u3059\u304b\uff1f\" \/>\n<meta property=\"og:description\" content=\"Java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001ThreadPoolExecutor\u30af\u30e9\u30b9\u306e\u3044\u304f\u3064\u304b\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u306e\u3044\u304f\u3064\u304b\u3067\u3059\u3002 \u30d7\u30fc\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u53d6\u5f97\u3059\u308b\u3002 \u30a2\u30af\u30c6\u30a3\u30d6\u306a […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/java\u306e\u30b9\u30ec\u30c3\u30c9\u30d7\u30fc\u30eb\u306e\u72b6\u614b\u306f\u3069\u306e\u3088\u3046\u306b\u78ba\u8a8d\u3057\u307e\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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