{"id":832,"date":"2023-12-16T10:23:20","date_gmt":"2023-05-09T00:34:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/java-callable-future-%e7%a4%ba%e4%be%8b\/"},"modified":"2025-08-03T11:45:44","modified_gmt":"2025-08-03T03:45:44","slug":"java-callable-future-%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/java-callable-future-%e7%a4%ba%e4%be%8b\/","title":{"rendered":"Java Callable Future\u5b8c\u5168\u6307\u5357\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u6700\u4f73\u5b9e\u8df5"},"content":{"rendered":"

\u5728\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\uff0cJava\u7684Callable\u548cFuture\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u5728\u4e4b\u524d\u7684\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86\u8bb8\u591a\u5173\u4e8eJava\u7ebf\u7a0b\u7684\u77e5\u8bc6\uff0c\u4f46\u6709\u65f6\u6211\u4eec\u5e0c\u671b\u7ebf\u7a0b\u80fd\u591f\u8fd4\u56de\u4e00\u4e9b\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7684\u503c\u3002Java 5\u5f15\u5165\u4e86\u5e76\u53d1\u5305\u4e2d\u7684java.util.concurrent.Callable\u63a5\u53e3\uff0c\u5b83\u7c7b\u4f3c\u4e8eRunnable\u63a5\u53e3\uff0c\u4f46\u5b83\u53ef\u4ee5\u8fd4\u56de\u4efb\u610f\u5bf9\u8c61\u5e76\u4e14\u80fd\u591f\u629b\u51fa\u5f02\u5e38\u3002<\/p>\n

Java Callable\u63a5\u53e3<\/h2>\n

Java\u7684Callable\u63a5\u53e3\u4f7f\u7528\u6cdb\u578b\u6765\u5b9a\u4e49\u8fd4\u56de\u5bf9\u8c61\u7684\u7c7b\u578b\u3002Executors\u7c7b\u63d0\u4f9b\u4e86\u5728\u7ebf\u7a0b\u6c60\u4e2d\u6267\u884cJava Callable\u7684\u6709\u7528\u65b9\u6cd5\u3002\u7531\u4e8eCallable\u4efb\u52a1\u662f\u5e76\u884c\u8fd0\u884c\u7684\uff0c\u6240\u4ee5\u6211\u4eec\u5fc5\u987b\u7b49\u5f85\u8fd4\u56de\u7684\u5bf9\u8c61\u3002<\/p>\n

Java Future\u63a5\u53e3<\/h2>\n

Java\u7684Callable\u4efb\u52a1\u8fd4\u56dejava.util.concurrent.Future\u5bf9\u8c61\u3002\u4f7f\u7528Java Future\u5bf9\u8c61\uff0c\u6211\u4eec\u53ef\u4ee5\u4e86\u89e3Callable\u4efb\u52a1\u7684\u72b6\u6001\u5e76\u83b7\u53d6\u8fd4\u56de\u7684\u5bf9\u8c61\u3002\u5b83\u63d0\u4f9b\u4e86get()\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7b49\u5f85Callable\u4efb\u52a1\u5b8c\u6210\uff0c\u7136\u540e\u8fd4\u56de\u7ed3\u679c\u3002Java Future\u63d0\u4f9b\u4e86cancel()\u65b9\u6cd5\u6765\u53d6\u6d88\u5173\u8054\u7684Callable\u4efb\u52a1\u3002get()\u65b9\u6cd5\u6709\u4e00\u4e2a\u91cd\u8f7d\u7248\u672c\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u7b49\u5f85\u7ed3\u679c\u7684\u65f6\u95f4\uff0c\u8fd9\u5bf9\u4e8e\u907f\u514d\u5f53\u524d\u7ebf\u7a0b\u957f\u65f6\u95f4\u88ab\u963b\u585e\u5f88\u6709\u7528\u3002\u8fd8\u6709isDone()\u548cisCancelled()\u65b9\u6cd5\uff0c\u7528\u4e8e\u4e86\u89e3\u5173\u8054\u7684Callable\u4efb\u52a1\u7684\u5f53\u524d\u72b6\u6001\u3002\u8fd9\u662f\u4e00\u4e2a\u7b80\u5355\u7684Java Callable\u4efb\u52a1\u7684\u4f8b\u5b50\uff0c\u5728\u4e00\u79d2\u949f\u540e\u8fd4\u56de\u6267\u884c\u4efb\u52a1\u7684\u7ebf\u7a0b\u540d\u79f0\u3002\u6211\u4eec\u4f7f\u7528Executor\u6846\u67b6\u5e76\u884c\u6267\u884c100\u4e2a\u4efb\u52a1\uff0c\u5e76\u4f7f\u7528Java Future\u83b7\u53d6\u63d0\u4ea4\u4efb\u52a1\u7684\u7ed3\u679c\u3002<\/p>\n

package com.Olivia.threads;\r\n\r\nimport java.util.ArrayList;\r\nimport java.util.Date;\r\nimport java.util.List;\r\nimport java.util.concurrent.Callable;\r\nimport java.util.concurrent.ExecutionException;\r\nimport java.util.concurrent.ExecutorService;\r\nimport java.util.concurrent.Executors;\r\nimport java.util.concurrent.Future;\r\n\r\npublic class MyCallable implements Callable<String> {\r\n\r\n    @Override\r\n    public String call() throws Exception {\r\n        Thread.sleep(1000);\r\n        \/\/\u8fd4\u56de\u6267\u884c\u6b64\u53ef\u8c03\u7528\u4efb\u52a1\u7684\u7ebf\u7a0b\u540d\u79f0\r\n        return Thread.currentThread().getName();\r\n    }\r\n    \r\n    public static void main(String args[]){\r\n        \/\/\u4eceExecutors\u5de5\u5177\u7c7b\u83b7\u53d6ExecutorService\uff0c\u7ebf\u7a0b\u6c60\u5927\u5c0f\u4e3a10\r\n        ExecutorService executor = Executors.newFixedThreadPool(10);\r\n        \/\/\u521b\u5efa\u4e00\u4e2a\u5217\u8868\u6765\u4fdd\u5b58\u4e0eCallable\u5173\u8054\u7684Future\u5bf9\u8c61\r\n        List<Future<String>> list = new ArrayList<Future<String>>();\r\n        \/\/\u521b\u5efaMyCallable\u5b9e\u4f8b\r\n        Callable<String> callable = new MyCallable();\r\n        for(int i=0; i< 100; i++){\r\n            \/\/\u63d0\u4ea4Callable\u4efb\u52a1\u7531\u7ebf\u7a0b\u6c60\u6267\u884c\r\n            Future<String> future = executor.submit(callable);\r\n            \/\/\u5c06Future\u6dfb\u52a0\u5230\u5217\u8868\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Future\u83b7\u53d6\u8fd4\u56de\u503c\r\n            list.add(future);\r\n        }\r\n        for(Future<String> fut : list){\r\n            try {\r\n                \/\/\u6253\u5370Future\u7684\u8fd4\u56de\u503c\uff0c\u6ce8\u610f\u63a7\u5236\u53f0\u8f93\u51fa\u7684\u5ef6\u8fdf\r\n                \/\/\u56e0\u4e3aFuture.get()\u4f1a\u7b49\u5f85\u4efb\u52a1\u5b8c\u6210\r\n                System.out.println(new Date()+ \"::\"+fut.get());\r\n            } catch (InterruptedException | ExecutionException e) {\r\n                e.printStackTrace();\r\n            }\r\n        }\r\n        \/\/\u73b0\u5728\u5173\u95ed\u6267\u884c\u5668\u670d\u52a1\r\n        executor.shutdown();\r\n    }\r\n\r\n}\r\n<\/code><\/pre>\n
\u5f53\u6211\u4eec\u6267\u884c\u4e0a\u8ff0\u7a0b\u5e8f\u65f6\uff0c\u4f60\u4f1a\u6ce8\u610f\u5230\u8f93\u51fa\u6709\u5ef6\u8fdf\uff0c\u56e0\u4e3aJava\u7684Future get()\u65b9\u6cd5\u4f1a\u7b49\u5f85Java Callable\u4efb\u52a1\u5b8c\u6210\u3002\u540c\u65f6\u8fd8\u8981\u6ce8\u610f\uff0c\u53ea\u670910\u4e2a\u7ebf\u7a0b\u5728\u6267\u884c\u8fd9\u4e9b\u4efb\u52a1\u3002\u4ee5\u4e0b\u662f\u4e0a\u8ff0\u7a0b\u5e8f\u7684\u90e8\u5206\u8f93\u51fa\u793a\u4f8b\uff1a<\/p>\n
Mon Dec 31 20:40:15 PST 2012::pool-1-thread-1\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-2\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-3\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-4\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-5\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-6\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-7\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-8\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-9\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-10\r\nMon Dec 31 20:40:16 PST 2012::pool-1-thread-2\r\n...\r\n<\/code><\/pre>\n
\u63d0\u793a\uff1a\u5982\u679c\u6211\u4eec\u60f3\u8981\u8986\u76d6Java Future\u63a5\u53e3\u7684\u67d0\u4e9b\u65b9\u6cd5\uff0c\u4f8b\u5982\u5c06get()\u65b9\u6cd5\u8986\u76d6\u4e3a\u5728\u4e00\u6bb5\u9ed8\u8ba4\u65f6\u95f4\u540e\u8d85\u65f6\u800c\u4e0d\u662f\u65e0\u9650\u7b49\u5f85\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0bJava FutureTask\u7c7b\u975e\u5e38\u65b9\u4fbf\uff0c\u5b83\u662fFuture\u63a5\u53e3\u7684\u57fa\u672c\u5b9e\u73b0\u3002\u67e5\u770bJava FutureTask\u793a\u4f8b\u4ee5\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u8fd9\u4e2a\u7c7b\u7684\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u591a\u7ebf\u7a0b\u7f16\u7a0b\u4e2d\uff0cJava\u7684Callable\u548cFuture\u88ab\u5e7f\u6cdb\u4f7f\u7528\u3002\u5728\u4e4b\u524d\u7684\u6587\u7ae0\u4e2d\uff0c\u6211\u4eec\u5df2\u7ecf\u5b66\u4e60\u4e86\u8bb8\u591a\u5173\u4e8eJa […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1417,2189,1397,973,1360],"class_list":["post-832","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-callable","tag-future","tag-java","tag-973","tag-1360"],"yoast_head":"\nJava Callable Future\u5b8c\u5168\u6307\u5357\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u6700\u4f73\u5b9e\u8df5 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u6df1\u5165\u89e3\u6790Java Callable\u548cFuture\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u901a\u8fc7\u5b9e\u4f8b\u4ee3\u7801\u6f14\u793a\u5f02\u6b65\u7f16\u7a0b\u6280\u5de7\u3002\u5b66\u4e60\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406\u591a\u7ebf\u7a0b\u4efb\u52a1\uff0c\u5904\u7406\u8fd4\u56de\u7ed3\u679c\uff0c\u63d0\u5347Java\u5e76\u53d1\u7f16\u7a0b\u80fd\u529b\u3002\" \/>\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\/zh\/blog\/java-callable-future-\u793a\u4f8b\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Java Callable Future\u5b8c\u5168\u6307\u5357\uff1a\u5b9e\u4f8b\u8be6\u89e3\u4e0e\u6700\u4f73\u5b9e\u8df5\" \/>\n<meta property=\"og:description\" content=\"\u6df1\u5165\u89e3\u6790Java Callable\u548cFuture\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u901a\u8fc7\u5b9e\u4f8b\u4ee3\u7801\u6f14\u793a\u5f02\u6b65\u7f16\u7a0b\u6280\u5de7\u3002\u5b66\u4e60\u5982\u4f55\u521b\u5efa\u548c\u7ba1\u7406\u591a\u7ebf\u7a0b\u4efb\u52a1\uff0c\u5904\u7406\u8fd4\u56de\u7ed3\u679c\uff0c\u63d0\u5347Java\u5e76\u53d1\u7f16\u7a0b\u80fd\u529b\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/java-callable-future-\u793a\u4f8b\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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