{"id":1125,"date":"2016-01-08T20:05:05","date_gmt":"2016-01-08T12:05:05","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=1125"},"modified":"2026-08-15T17:03:43","modified_gmt":"2026-08-15T09:03:43","slug":"android-%e6%80%a7%e8%83%bd%e4%bc%98%e5%8c%96%e4%b9%8b%e4%bd%bf%e7%94%a8%e7%ba%bf%e7%a8%8b%e6%b1%a0%e5%a4%84%e7%90%86%e5%bc%82%e6%ad%a5%e4%bb%bb%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=1125","title":{"rendered":"\u5f02\u6b65\u4efb\u52a1\u673a\u5236"},"content":{"rendered":"<p><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-3498\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image.png\" alt=\"\" width=\"2151\" height=\"1105\" srcset=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image.png 2151w, https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image-768x395.png 768w, https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image-1536x789.png 1536w, https:\/\/ai.zhousir.top\/wp-content\/uploads\/2024\/05\/image-2048x1052.png 2048w\" sizes=\"(max-width: 2151px) 100vw, 2151px\" \/><\/a><\/p>\n<p>\u8bf4\u5230\u7ebf\u7a0b\uff0c\u6211\u60f3\u5927\u5bb6\u90fd\u4e0d\u964c\u751f\uff0c\u56e0\u4e3a\u5728\u5f00\u53d1\u65f6\u5019\u6216\u591a\u6216\u5c11\u90fd\u4f1a\u7528\u5230\u7ebf\u7a0b\uff0c\u800c\u901a\u5e38\u521b\u5efa\u7ebf\u7a0b\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<!--more--><\/p>\n<p>1\u3001\u7ee7\u627fThread\u7c7b<br \/>\n2\u3001\u5b9e\u73b0Runnable\u63a5\u53e3<br \/>\n\u867d\u8bf4\u8fd9\u4e24\u79cd\u65b9\u5f0f\u90fd\u53ef\u4ee5\u521b\u5efa\u51fa\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u4e0d\u8fc7\u5b83\u4eec\u4e4b\u95f4\u8fd8\u662f\u6709\u4e00\u70b9\u533a\u522b\u7684\uff0c\u4e3b\u8981\u533a\u522b\u5728\u4e8e\u5728\u591a\u7ebf\u7a0b\u8bbf\u95ee\u540c\u4e00\u8d44\u6e90\u7684\u60c5\u51b5\u4e0b\uff0c\u7528Runnable\u63a5\u53e3\u521b\u5efa\u7684\u7ebf\u7a0b\u53ef\u4ee5\u5904\u7406\u540c\u4e00\u8d44\u6e90\uff0c\u800c\u7528Thread\u7c7b\u521b\u5efa\u7684\u7ebf\u7a0b\u5219\u5404\u81ea\u72ec\u7acb\u5904\u7406\uff0c\u5404\u81ea\u62e5\u6709\u81ea\u5df1\u7684\u8d44\u6e90\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5728Java\u4e2d\u5927\u591a\u6570\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u90fd\u662f\u901a\u8fc7\u5b9e\u73b0Runnable\u6765\u5b8c\u6210\u7684\uff0c\u800c\u5bf9\u4e8eAndroid\u6765\u8bf4\u4e5f\u4e0d\u4f8b\u5916\uff0c\u5f53\u6d89\u53ca\u5230\u9700\u8981\u5f00\u542f\u7ebf\u7a0b\u53bb\u5b8c\u6210\u67d0\u4ef6\u4e8b\u65f6\uff0c\u6211\u4eec\u90fd\u4f1a\u8fd9\u6837\u5199\uff1a<\/p>\n<pre>[java]\n        new Thread(new Runnable() {\n            @Override\n            public void run() {\n                \/\/do sth .\n            }\n        }).start();\n[\/java]<\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2a\u7ebf\u7a0b\u5e76\u6267\u884c\uff0c\u5b83\u5728\u4efb\u52a1\u7ed3\u675f\u540eGC\u4f1a\u81ea\u52a8\u56de\u6536\u8be5\u7ebf\u7a0b\uff0c\u4e00\u5207\u770b\u8d77\u6765\u5982\u6b64\u7f8e\u5999\uff0c\u662f\u7684\uff0c\u5b83\u5728\u7ebf\u7a0b\u5e76\u53d1\u4e0d\u591a\u7684\u7a0b\u5e8f\u4e2d\u786e\u5b9e\u4e0d\u9519\uff0c\u800c\u5047\u5982\u8fd9\u4e2a\u7a0b\u5e8f\u6709\u5f88\u591a\u5730\u65b9\u9700\u8981\u5f00\u542f\u5927\u91cf\u7ebf\u7a0b\u6765\u5904\u7406\u4efb\u52a1\uff0c\u90a3\u4e48\u5982\u679c\u8fd8\u662f\u7528\u4e0a\u8ff0\u7684\u65b9\u5f0f\u53bb\u521b\u5efa\u7ebf\u7a0b\u5904\u7406\u7684\u8bdd\uff0c\u90a3\u4e48\u5c06\u5bfc\u81f4\u7cfb\u7edf\u7684\u6027\u80fd\u8868\u73b0\u7684\u975e\u5e38\u7cdf\u7cd5\uff0c\u66f4\u522b\u8bf4\u5728\u5185\u5b58\u6709\u9650\u7684\u79fb\u52a8\u8bbe\u5907\u4e0a\uff0c\u4e3b\u8981\u7684\u5f71\u54cd\u5982\u4e0b\uff1a<\/p>\n<p>1\u3001\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u90fd\u9700\u8981\u65f6\u95f4\uff0c\u5f53\u6709\u5927\u91cf\u7684\u7ebf\u7a0b\u521b\u5efa\u548c\u9500\u6bc1\u65f6\uff0c\u90a3\u4e48\u8fd9\u4e9b\u65f6\u95f4\u7684\u6d88\u8017\u5219\u6bd4\u8f83\u660e\u663e\uff0c\u5c06\u5bfc\u81f4\u6027\u80fd\u4e0a\u7684\u7f3a\u5931<\/p>\n<p>2\u3001\u5927\u91cf\u7684\u7ebf\u7a0b\u521b\u5efa\u3001\u6267\u884c\u548c\u9500\u6bc1\u662f\u975e\u5e38\u8017cpu\u548c\u5185\u5b58\u7684\uff0c\u8fd9\u6837\u5c06\u76f4\u63a5\u5f71\u54cd\u7cfb\u7edf\u7684\u541e\u5410\u91cf\uff0c\u5bfc\u81f4\u6027\u80fd\u6025\u5267\u4e0b\u964d\uff0c\u5982\u679c\u5185\u5b58\u8d44\u6e90\u5360\u7528\u7684\u6bd4\u8f83\u591a\uff0c\u8fd8\u5f88\u53ef\u80fd\u9020\u6210OOM<\/p>\n<p>3\u3001\u5927\u91cf\u7684\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u5f88\u5bb9\u6613\u5bfc\u81f4GC\u9891\u7e41\u7684\u6267\u884c\uff0c\u4ece\u800c\u53d1\u751f\u5185\u5b58\u6296\u52a8\u73b0\u8c61\uff0c\u800c\u53d1\u751f\u4e86\u5185\u5b58\u6296\u52a8\uff0c\u5bf9\u4e8e\u79fb\u52a8\u7aef\u6765\u8bf4\uff0c\u6700\u5927\u7684\u5f71\u54cd\u5c31\u662f\u9020\u6210\u754c\u9762\u5361\u987f<br \/>\n\u800c\u9488\u5bf9\u4e0a\u8ff0\u6240\u63cf\u8ff0\u7684\u95ee\u9898\uff0c\u89e3\u51b3\u7684\u529e\u6cd5\u5f52\u6839\u5230\u5e95\u5c31\u662f\uff1a\u91cd\u7528\u5df2\u6709\u7684\u7ebf\u7a0b\uff0c\u4ece\u800c\u51cf\u5c11\u7ebf\u7a0b\u7684\u521b\u5efa\u3002<br \/>\n\u6240\u4ee5\u8fd9\u5c31\u6d89\u53ca\u5230\u7ebf\u7a0b\u6c60\uff08ExecutorService\uff09\u7684\u6982\u5ff5\u4e86\uff0c\u7ebf\u7a0b\u6c60\u7684\u57fa\u672c\u4f5c\u7528\u5c31\u662f\u8fdb\u884c\u7ebf\u7a0b\u7684\u590d\u7528\uff0c\u4e0b\u9762\u5c06\u5177\u4f53\u4ecb\u7ecd\u7ebf\u7a0b\u6c60\u7684\u4f7f\u7528<\/p>\n<p>ExecutorService<\/p>\n<p>\u901a\u8fc7\u4e0a\u8ff0\u5206\u6790\uff0c\u6211\u4eec\u77e5\u9053\u4e86\u901a\u8fc7new Thread().start()\u65b9\u5f0f\u521b\u5efa\u7ebf\u7a0b\u53bb\u5904\u7406\u4efb\u52a1\u7684\u5f0a\u7aef\uff0c\u800c\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e9b\u95ee\u9898\uff0cJava\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86ExecutorService\u7ebf\u7a0b\u6c60\u6765\u4f18\u5316\u548c\u7ba1\u7406\u7ebf\u7a0b\u7684\u4f7f\u7528<\/p>\n<p>\u4f7f\u7528\u7ebf\u7a0b\u6c60\u7ba1\u7406\u7ebf\u7a0b\u7684\u4f18\u70b9<\/p>\n<p>1\u3001\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\u7531\u7ebf\u7a0b\u6c60\u7ef4\u62a4\uff0c\u4e00\u4e2a\u7ebf\u7a0b\u5728\u5b8c\u6210\u4efb\u52a1\u540e\u5e76\u4e0d\u4f1a\u7acb\u5373\u9500\u6bc1\uff0c\u800c\u662f\u7531\u540e\u7eed\u7684\u4efb\u52a1\u590d\u7528\u8fd9\u4e2a\u7ebf\u7a0b\uff0c\u4ece\u800c\u51cf\u5c11\u7ebf\u7a0b\u7684\u521b\u5efa\u548c\u9500\u6bc1\uff0c\u8282\u7ea6\u7cfb\u7edf\u7684\u5f00\u9500<\/p>\n<p>2\u3001\u7ebf\u7a0b\u6c60\u65e8\u5728\u7ebf\u7a0b\u7684\u590d\u7528\uff0c\u8fd9\u5c31\u53ef\u4ee5\u8282\u7ea6\u6211\u4eec\u7528\u4ee5\u5f80\u7684\u65b9\u5f0f\u521b\u5efa\u7ebf\u7a0b\u548c\u9500\u6bc1\u6240\u6d88\u8017\u7684\u65f6\u95f4\uff0c\u51cf\u5c11\u7ebf\u7a0b\u9891\u7e41\u8c03\u5ea6\u7684\u5f00\u9500\uff0c\u4ece\u800c\u8282\u7ea6\u7cfb\u7edf\u8d44\u6e90\uff0c\u63d0\u9ad8\u7cfb\u7edf\u541e\u5410\u91cf<\/p>\n<p>3\u3001\u5728\u6267\u884c\u5927\u91cf\u5f02\u6b65\u4efb\u52a1\u65f6\u63d0\u9ad8\u4e86\u6027\u80fd<\/p>\n<p>4\u3001Java\u5185\u7f6e\u7684\u4e00\u5957ExecutorService\u7ebf\u7a0b\u6c60\u76f8\u5173\u7684api\uff0c\u53ef\u4ee5\u66f4\u65b9\u4fbf\u7684\u63a7\u5236\u7ebf\u7a0b\u7684\u6700\u5927\u5e76\u53d1\u6570\u3001\u7ebf\u7a0b\u7684\u5b9a\u65f6\u4efb\u52a1\u3001\u5355\u7ebf\u7a0b\u7684\u987a\u5e8f\u6267\u884c\u7b49<br \/>\nExecutorService\u7b80\u4ecb<\/p>\n<p>\u901a\u5e38\u6765\u8bf4\u6211\u4eec\u8bf4\u5230\u7ebf\u7a0b\u6c60\u7b2c\u4e00\u65f6\u95f4\u60f3\u5230\u7684\u5c31\u662f\u5b83\uff1aExecutorService\uff0c\u5b83\u662f\u4e00\u4e2a\u63a5\u53e3\uff0c\u5176\u5b9e\u5982\u679c\u8981\u4ece\u771f\u6b63\u610f\u4e49\u4e0a\u6765\u8bf4\uff0c\u5b83\u53ef\u4ee5\u53eb\u505a\u7ebf\u7a0b\u6c60\u7684\u670d\u52a1\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u4f17\u591a\u63a5\u53e3api\u6765\u63a7\u5236\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\uff0c\u800c\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u7ebf\u7a0b\u6c60\u5c31\u662f\uff1aThreadPoolExecutor\uff0c\u5b83\u5b9e\u73b0\u4e86ExecutorService\u63a5\u53e3\uff0c\u5e76\u5c01\u88c5\u4e86\u4e00\u7cfb\u5217\u7684api\u4f7f\u5f97\u5b83\u5177\u6709\u7ebf\u7a0b\u6c60\u7684\u7279\u6027\uff0c\u5176\u4e2d\u5305\u62ec\u5de5\u4f5c\u961f\u5217\u3001\u6838\u5fc3\u7ebf\u7a0b\u6570\u3001\u6700\u5927\u7ebf\u7a0b\u6570\u7b49\u3002<\/p>\n<p>\u7ebf\u7a0b\u6c60\uff1aThreadPoolExecutor<\/p>\n<p>\u65e2\u7136\u7ebf\u7a0b\u6c60\u5c31\u662fThreadPoolExecutor\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u6c60\u53ea\u9700\u8981new ThreadPoolExecutor(\u2026);\u5c31\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u6c60\uff0c\u800c\u5982\u679c\u8fd9\u6837\u521b\u5efa\u7ebf\u7a0b\u6c60\u7684\u8bdd\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6e\u4e00\u5806\u4e1c\u897f\uff0c\u975e\u5e38\u9ebb\u70e6\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u4e00\u4e0b\u5b83\u7684\u6784\u9020\u65b9\u6cd5\u5c31\u77e5\u9053\u4e86\uff1a<\/p>\n<pre>[java]\npublic ThreadPoolExecutor(int corePoolSize,\n                              int maximumPoolSize,\n                              long keepAliveTime,\n                              TimeUnit unit,\n                              BlockingQueue&amp;lt;Runnable&amp;gt; workQueue,\n                              ThreadFactory threadFactory,\n                              RejectedExecutionHandler handler) {...}\n[\/java]<\/pre>\n<p>\u6240\u4ee5\uff0c\u5b98\u65b9\u4e5f\u4e0d\u63a8\u8350\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u6765\u521b\u5efa\u7ebf\u7a0b\u6c60\uff0c\u800c\u662f\u63a8\u8350\u4f7f\u7528Executors\u7684\u5de5\u5382\u65b9\u6cd5\u6765\u521b\u5efa\u7ebf\u7a0b\u6c60\uff0cExecutors\u7c7b\u662f\u5b98\u65b9\u63d0\u4f9b\u7684\u4e00\u4e2a\u5de5\u5382\u7c7b\uff0c\u5b83\u91cc\u9762\u5c01\u88c5\u597d\u4e86\u4f17\u591a\u529f\u80fd\u4e0d\u4e00\u6837\u7684\u7ebf\u7a0b\u6c60\uff0c\u4ece\u800c\u4f7f\u5f97\u6211\u4eec\u521b\u5efa\u7ebf\u7a0b\u6c60\u975e\u5e38\u7684\u7b80\u4fbf\uff0c\u4e3b\u8981\u63d0\u4f9b\u4e86\u5982\u4e0b\u4e94\u79cd\u529f\u80fd\u4e0d\u4e00\u6837\u7684\u7ebf\u7a0b\u6c60\uff1a<\/p>\n<p>1\u3001newFixedThreadPool() \uff1a<br \/>\n\u4f5c\u7528\uff1a\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\uff0c\u8be5\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u6570\u91cf\u59cb\u7ec8\u4e0d\u53d8\uff0c\u5373\u4e0d\u4f1a\u518d\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\uff0c\u4e5f\u4e0d\u4f1a\u9500\u6bc1\u5df2\u7ecf\u521b\u5efa\u597d\u7684\u7ebf\u7a0b\uff0c\u81ea\u59cb\u81ea\u7ec8\u90fd\u662f\u90a3\u51e0\u4e2a\u56fa\u5b9a\u7684\u7ebf\u7a0b\u5728\u5de5\u4f5c\uff0c\u6240\u4ee5\u8be5\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u63a7\u5236\u7ebf\u7a0b\u7684\u6700\u5927\u5e76\u53d1\u6570\u3002<br \/>\n\u6817\u5b50\uff1a\u5047\u5982\u6709\u4e00\u4e2a\u65b0\u4efb\u52a1\u63d0\u4ea4\u65f6\uff0c\u7ebf\u7a0b\u6c60\u4e2d\u5982\u679c\u6709\u7a7a\u95f2\u7684\u7ebf\u7a0b\u5219\u7acb\u5373\u4f7f\u7528\u7a7a\u95f2\u7ebf\u7a0b\u6765\u5904\u7406\u4efb\u52a1\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5219\u4f1a\u628a\u8fd9\u4e2a\u65b0\u4efb\u52a1\u5b58\u5728\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\u4e2d\uff0c\u4e00\u65e6\u6709\u7ebf\u7a0b\u7a7a\u95f2\u4e86\uff0c\u5219\u6309FIFO\u65b9\u5f0f\u5904\u7406\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\u3002<\/p>\n<p>2\u3001newCachedThreadPool() \uff1a<br \/>\n\u4f5c\u7528\uff1a\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\u3002\u5373\u8be5\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u6570\u91cf\u4e0d\u786e\u5b9a\uff0c\u662f\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u52a8\u6001\u8c03\u6574\u7684\u3002<br \/>\n\u6817\u5b50\uff1a\u5047\u5982\u8be5\u7ebf\u7a0b\u6c60\u4e2d\u7684\u6240\u6709\u7ebf\u7a0b\u90fd\u6b63\u5728\u5de5\u4f5c\uff0c\u800c\u6b64\u65f6\u6709\u65b0\u4efb\u52a1\u63d0\u4ea4\uff0c\u90a3\u4e48\u5c06\u4f1a\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\u53bb\u5904\u7406\u8be5\u4efb\u52a1\uff0c\u800c\u6b64\u65f6\u5047\u5982\u4e4b\u524d\u6709\u4e00\u4e9b\u7ebf\u7a0b\u5b8c\u6210\u4e86\u4efb\u52a1\uff0c\u73b0\u5728\u53c8\u6709\u65b0\u4efb\u52a1\u63d0\u4ea4\uff0c\u90a3\u4e48\u5c06\u4e0d\u4f1a\u521b\u5efa\u65b0\u7ebf\u7a0b\u53bb\u5904\u7406\uff0c\u800c\u662f\u590d\u7528\u7a7a\u95f2\u7684\u7ebf\u7a0b\u53bb\u5904\u7406\u65b0\u4efb\u52a1\u3002\u90a3\u4e48\u6b64\u65f6\u6709\u4eba\u6709\u7591\u95ee\u4e86\uff0c\u90a3\u8fd9\u6837\u6765\u8bf4\u8be5\u7ebf\u7a0b\u6c60\u7684\u7ebf\u7a0b\u5c82\u4e0d\u662f\u4f1a\u8d8a\u96c6\u8d8a\u591a\uff1f\u5176\u5b9e\u5e76\u4e0d\u4f1a\uff0c\u56e0\u4e3a\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u90fd\u6709\u4e00\u4e2a\u201c\u4fdd\u6301\u6d3b\u52a8\u65f6\u95f4\u201d\u7684\u53c2\u6570\uff0c\u901a\u8fc7\u914d\u7f6e\u5b83\uff0c\u5982\u679c\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7a7a\u95f2\u7ebf\u7a0b\u7684\u7a7a\u95f2\u65f6\u95f4\u8d85\u8fc7\u8be5\u201c\u4fdd\u5b58\u6d3b\u52a8\u65f6\u95f4\u201d\u5219\u7acb\u523b\u505c\u6b62\u8be5\u7ebf\u7a0b\uff0c\u800c\u8be5\u7ebf\u7a0b\u6c60\u9ed8\u8ba4\u7684\u201c\u4fdd\u6301\u6d3b\u52a8\u65f6\u95f4\u201d\u4e3a60s\u3002<\/p>\n<p>3\u3001newSingleThreadExecutor() \uff1a<br \/>\n\u4f5c\u7528\uff1a\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u7684\u7ebf\u7a0b\u6c60\uff0c\u5373\u6bcf\u6b21\u53ea\u80fd\u6267\u884c\u4e00\u4e2a\u7ebf\u7a0b\u4efb\u52a1\uff0c\u591a\u4f59\u7684\u4efb\u52a1\u4f1a\u4fdd\u5b58\u5230\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\u4e2d\uff0c\u7b49\u5f85\u8fd9\u4e00\u4e2a\u7ebf\u7a0b\u7a7a\u95f2\uff0c\u5f53\u8fd9\u4e2a\u7ebf\u7a0b\u7a7a\u95f2\u4e86\u518d\u6309FIFO\u65b9\u5f0f\u987a\u5e8f\u6267\u884c\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\u3002<\/p>\n<p>4\u3001newScheduledThreadPool() \uff1a<br \/>\n\u4f5c\u7528\uff1a\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u53ef\u4ee5\u63a7\u5236\u7ebf\u7a0b\u6c60\u5185\u7ebf\u7a0b\u5b9a\u65f6\u6216\u5468\u671f\u6027\u6267\u884c\u67d0\u4efb\u52a1\u7684\u7ebf\u7a0b\u6c60\u3002<\/p>\n<p>5\u3001newSingleThreadScheduledExecutor() \uff1a<br \/>\n\u4f5c\u7528\uff1a\u8be5\u65b9\u6cd5\u8fd4\u56de\u4e00\u4e2a\u53ef\u4ee5\u63a7\u5236\u7ebf\u7a0b\u6c60\u5185\u7ebf\u7a0b\u5b9a\u65f6\u6216\u5468\u671f\u6027\u6267\u884c\u67d0\u4efb\u52a1\u7684\u7ebf\u7a0b\u6c60\u3002\u53ea\u4e0d\u8fc7\u548c\u4e0a\u9762\u7684\u533a\u522b\u662f\u8be5\u7ebf\u7a0b\u6c60\u5927\u5c0f\u4e3a1\uff0c\u800c\u4e0a\u9762\u7684\u53ef\u4ee5\u6307\u5b9a\u7ebf\u7a0b\u6c60\u7684\u5927\u5c0f\u3002<br \/>\n\u597d\u4e86\uff0c\u5199\u4e86\u4e00\u5806\u6765\u4ecb\u7ecd\u8fd9\u4e94\u79cd\u7ebf\u7a0b\u6c60\u7684\u4f5c\u7528\uff0c\u63a5\u4e0b\u6765\u5c31\u662f\u83b7\u53d6\u8fd9\u4e94\u79cd\u7ebf\u7a0b\u6c60\uff0c\u901a\u8fc7Executors\u7684\u5de5\u5382\u65b9\u6cd5\u6765\u83b7\u53d6\uff1a<\/p>\n<pre>[java]\n    ExecutorService fixedThreadPool = Executors.newFixedThreadPool(5);\n    ExecutorService singleThreadPool = Executors.newSingleThreadExecutor();\n    ExecutorService cachedThreadPool = Executors.newCachedThreadPool();\n    ScheduledExecutorService scheduledThreadPool = Executors.newScheduledThreadPool(5);\n    ScheduledExecutorService singleThreadScheduledPool = Executors.newSingleThreadScheduledExecutor();\n[\/java]<\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u901a\u8fc7Executors\u7684\u5de5\u5382\u65b9\u6cd5\u6765\u521b\u5efa\u7ebf\u7a0b\u6c60\u6781\u5176\u7b80\u4fbf\uff0c\u5176\u5b9e\u5b83\u7684\u5185\u90e8\u8fd8\u662f\u901a\u8fc7new ThreadPoolExecutor(\u2026)\u7684\u65b9\u5f0f\u521b\u5efa\u7ebf\u7a0b\u6c60\u7684\uff0c\u6211\u4eec\u770b\u4e00\u4e0b\u8fd9\u4e9b\u5de5\u5382\u65b9\u6cd5\u7684\u5185\u90e8\u5b9e\u73b0\uff1a<\/p>\n<pre>[java]\n    public static ExecutorService newFixedThreadPool(int nThreads) {\n        return new ThreadPoolExecutor(nThreads, nThreads,\n                                      0L, TimeUnit.MILLISECONDS,\n                                      new LinkedBlockingQueue&amp;lt;Runnable&amp;gt;());\n    }\n    public static ExecutorService newSingleThreadExecutor() {\n        return new FinalizableDelegatedExecutorService\n            (new ThreadPoolExecutor(1, 1,\n                                    0L, TimeUnit.MILLISECONDS,\n                                    new LinkedBlockingQueue&amp;lt;Runnable&amp;gt;()));\n    }\n    public static ExecutorService newCachedThreadPool() {\n        return new ThreadPoolExecutor(0, Integer.MAX_VALUE,\n                                      60L, TimeUnit.SECONDS,\n                                      new SynchronousQueue&amp;lt;Runnable&amp;gt;());\n    }\n[\/java]<\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u6e05\u695a\u7684\u770b\u5230\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5185\u90e8\u5b9e\u73b0\u90fd\u662f\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aThreadPoolExecutor\u5bf9\u8c61\u6765\u521b\u5efa\u7684\uff0c\u6b63\u6240\u8c13\u4e07\u53d8\u4e0d\u79bb\u5176\u5b97\uff0c\u6240\u4ee5\u6211\u4eec\u8981\u4e86\u89e3\u7ebf\u7a0b\u6c60\u8fd8\u662f\u5f97\u4e86\u89e3ThreadPoolExecutor\u8fd9\u4e2a\u7ebf\u7a0b\u6c60\u7c7b\uff0c\u5176\u4e2d\u7531\u4e8e\u548c\u5b9a\u65f6\u4efb\u52a1\u76f8\u5173\u7684\u7ebf\u7a0b\u6c60\u6bd4\u8f83\u7279\u6b8a\uff08newScheduledThreadPool()\u3001newSingleThreadScheduledExecutor()\uff09\uff0c\u5b83\u4eec\u521b\u5efa\u7684\u7ebf\u7a0b\u6c60\u5185\u90e8\u5b9e\u73b0\u662f\u7531ScheduledThreadPoolExecutor\u8fd9\u4e2a\u7c7b\u5b9e\u73b0\u7684\uff0c\u800cScheduledThreadPoolExecutor\u662f\u7ee7\u627f\u4e8eThreadPoolExecutor\u6269\u5c55\u800c\u6210\u7684\uff0c\u6240\u4ee5\u672c\u8d28\u8fd8\u662f\u4e00\u6837\u7684\uff0c\u53ea\u4e0d\u8fc7\u591a\u5c01\u88c5\u4e86\u4e00\u4e9b\u5b9a\u65f6\u4efb\u52a1\u76f8\u5173\u7684api\uff0c\u6240\u4ee5\u6211\u4eec\u4e3b\u8981\u5c31\u662f\u8981\u4e86\u89e3ThreadPoolExecutor\uff0c\u4ece\u6784\u9020\u65b9\u6cd5\u5f00\u59cb\uff1a<\/p>\n<pre>[java]\n    public ThreadPoolExecutor(int corePoolSize,\n                              int maximumPoolSize,\n                              long keepAliveTime,\n                              TimeUnit unit,\n                              BlockingQueue&amp;lt;Runnable&amp;gt; workQueue,\n                              ThreadFactory threadFactory,\n                              RejectedExecutionHandler handler) {\/\/...}\n[\/java]<\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u5b83\u6784\u9020\u65b9\u6cd5\u7684\u53c2\u6570\u6bd4\u8f83\u591a\uff0c\u6709\u4e03\u4e2a\uff0c\u4e0b\u9762\u4e00\u4e00\u6765\u8bf4\u660e\u8fd9\u4e9b\u53c2\u6570\u7684\u4f5c\u7528\uff1a<\/p>\n<p>corePoolSize\uff1a\u7ebf\u7a0b\u6c60\u4e2d\u7684\u6838\u5fc3\u7ebf\u7a0b\u6570\u91cf<br \/>\nmaximumPoolSize\uff1a\u7ebf\u7a0b\u6c60\u4e2d\u7684\u6700\u5927\u7ebf\u7a0b\u6570\u91cf<br \/>\nkeepAliveTime\uff1a\u8fd9\u4e2a\u5c31\u662f\u4e0a\u9762\u8bf4\u5230\u7684\u201c\u4fdd\u6301\u6d3b\u52a8\u65f6\u95f4\u201c\uff0c\u4e0a\u9762\u53ea\u662f\u5927\u6982\u8bf4\u660e\u4e86\u4e00\u4e0b\u5b83\u7684\u4f5c\u7528\uff0c\u4e0d\u8fc7\u5b83\u8d77\u4f5c\u7528\u5fc5\u987b\u5728\u4e00\u4e2a\u524d\u63d0\u4e0b\uff0c\u5c31\u662f\u5f53\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u6570\u91cf\u8d85\u8fc7\u4e86corePoolSize\u65f6\uff0c\u5b83\u8868\u793a\u591a\u4f59\u7684\u7a7a\u95f2\u7ebf\u7a0b\u7684\u5b58\u6d3b\u65f6\u95f4\uff0c\u5373\uff1a\u591a\u4f59\u7684\u7a7a\u95f2\u7ebf\u7a0b\u5728\u8d85\u8fc7keepAliveTime\u65f6\u95f4\u5185\u6ca1\u6709\u4efb\u52a1\u7684\u8bdd\u5219\u88ab\u9500\u6bc1\u3002\u800c\u8fd9\u4e2a\u4e3b\u8981\u5e94\u7528\u5728\u7f13\u5b58\u7ebf\u7a0b\u6c60\u4e2d<br \/>\nunit\uff1a\u5b83\u662f\u4e00\u4e2a\u679a\u4e3e\u7c7b\u578b\uff0c\u8868\u793akeepAliveTime\u7684\u5355\u4f4d\uff0c\u5e38\u7528\u7684\u5982\uff1aTimeUnit.SECONDS\uff08\u79d2\uff09\u3001TimeUnit.MILLISECONDS\uff08\u6beb\u79d2\uff09<br \/>\nworkQueue\uff1a\u4efb\u52a1\u961f\u5217\uff0c\u4e3b\u8981\u7528\u6765\u5b58\u50a8\u5df2\u7ecf\u63d0\u4ea4\u4f46\u672a\u88ab\u6267\u884c\u7684\u4efb\u52a1\uff0c\u4e0d\u540c\u7684\u7ebf\u7a0b\u6c60\u91c7\u7528\u7684\u6392\u961f\u7b56\u7565\u4e0d\u4e00\u6837\uff0c\u7a0d\u540e\u518d\u8bb2<br \/>\nthreadFactory\uff1a\u7ebf\u7a0b\u5de5\u5382\uff0c\u7528\u6765\u521b\u5efa\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\uff0c\u901a\u5e38\u7528\u9ed8\u8ba4\u7684\u5373\u53ef<br \/>\nhandler\uff1a\u901a\u5e38\u53eb\u505a\u62d2\u7edd\u7b56\u7565\uff0c1\u3001\u5728\u7ebf\u7a0b\u6c60\u5df2\u7ecf\u5173\u95ed\u7684\u60c5\u51b5\u4e0b 2\u3001\u4efb\u52a1\u592a\u591a\u5bfc\u81f4\u6700\u5927\u7ebf\u7a0b\u6570\u548c\u4efb\u52a1\u961f\u5217\u5df2\u7ecf\u9971\u548c\uff0c\u65e0\u6cd5\u518d\u63a5\u6536\u65b0\u7684\u4efb\u52a1 \u3002\u5728\u4e0a\u9762\u4e24\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ea\u8981\u6ee1\u8db3\u5176\u4e2d\u4e00\u79cd\u65f6\uff0c\u5728\u4f7f\u7528execute()\u6765\u63d0\u4ea4\u65b0\u7684\u4efb\u52a1\u65f6\u5c06\u4f1a\u62d2\u7edd\uff0c\u800c\u9ed8\u8ba4\u7684\u62d2\u7edd\u7b56\u7565\u662f\u629b\u4e00\u4e2aRejectedExecutionException\u5f02\u5e38<br \/>\n\u4e0a\u9762\u7684\u53c2\u6570\u7406\u89e3\u8d77\u6765\u90fd\u6bd4\u8f83\u7b80\u5355\uff0c\u4e0d\u8fc7workQueue\u8fd9\u4e2a\u4efb\u52a1\u961f\u5217\u5374\u8981\u518d\u6b21\u8bf4\u660e\u4e00\u4e0b\uff0c\u5b83\u662f\u4e00\u4e2aBlockingQueue\u5bf9\u8c61\uff0c\u800c\u6cdb\u578b\u5219\u9650\u5b9a\u5b83\u662f\u7528\u6765\u5b58\u653eRunnable\u5bf9\u8c61\u7684\uff0c\u521a\u521a\u4e0a\u9762\u8bb2\u4e86\uff0c\u4e0d\u540c\u7684\u7ebf\u7a0b\u6c60\u5b83\u7684\u4efb\u52a1\u961f\u5217\u5b9e\u73b0\u80af\u5b9a\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u6240\u4ee5\uff0c\u4fdd\u8bc1\u4e0d\u540c\u7ebf\u7a0b\u6c60\u6709\u7740\u4e0d\u540c\u7684\u529f\u80fd\u7684\u6838\u5fc3\u5c31\u662f\u8fd9\u4e2aworkQueue\u7684\u5b9e\u73b0\u4e86\uff0c\u7ec6\u5fc3\u7684\u4f1a\u53d1\u73b0\u5728\u521a\u521a\u7684\u7528\u6765\u521b\u5efa\u7ebf\u7a0b\u6c60\u7684\u5de5\u5382\u65b9\u6cd5\u4e2d\uff0c\u9488\u5bf9\u4e0d\u540c\u7684\u7ebf\u7a0b\u6c60\u4f20\u5165\u7684workQueue\u4e5f\u4e0d\u4e00\u6837\uff0c\u4e0b\u9762\u6211\u603b\u7ed3\u4e00\u4e0b\u8fd9\u4e94\u79cd\u7ebf\u7a0b\u6c60\u5206\u522b\u7528\u7684\u662f\u4ec0\u4e48BlockingQueue\uff1a<\/p>\n<p>1\u3001newFixedThreadPool()\u2014&gt;LinkedBlockingQueue<br \/>\n2\u3001newSingleThreadExecutor()\u2014&gt;LinkedBlockingQueue<br \/>\n3\u3001newCachedThreadPool()\u2014&gt;SynchronousQueue<br \/>\n4\u3001newScheduledThreadPool()\u2014&gt;DelayedWorkQueue<br \/>\n5\u3001newSingleThreadScheduledExecutor()\u2014&gt;DelayedWorkQueue<br \/>\n\u8fd9\u4e9b\u961f\u5217\u5206\u522b\u8868\u793a\uff1a<\/p>\n<p>LinkedBlockingQueue\uff1a\u65e0\u754c\u7684\u961f\u5217<br \/>\nSynchronousQueue\uff1a\u76f4\u63a5\u63d0\u4ea4\u7684\u961f\u5217<br \/>\nDelayedWorkQueue\uff1a\u7b49\u5f85\u961f\u5217<br \/>\n\u5f53\u7136\u5b9e\u73b0\u4e86BlockingQueue\u63a5\u53e3\u7684\u961f\u5217\u8fd8\u6709\uff1aArrayBlockingQueue\uff08\u6709\u754c\u7684\u961f\u5217\uff09\u3001PriorityBlockingQueue\uff08\u4f18\u5148\u7ea7\u961f\u5217\uff09\u3002\u8fd9\u4e9b\u961f\u5217\u7684\u8be6\u7ec6\u4f5c\u7528\u5c31\u4e0d\u591a\u4ecb\u7ecd\u4e86\u3002<\/p>\n<p>\u7ebf\u7a0b\u6c60ThreadPoolExecutor\u7684\u4f7f\u7528<\/p>\n<p>\u4f7f\u7528\u7ebf\u7a0b\u6c60\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u4e00\u4e2a\u6781\u5176\u91cd\u8981\u7684\u65b9\u6cd5\uff0c\u5373\uff1a<\/p>\n<pre>[java]execute(Runnable command) [\/java]<\/pre>\n<p>\u8be5\u65b9\u6cd5\u610f\u4e3a\u6267\u884c\u7ed9\u5b9a\u7684\u4efb\u52a1\uff0c\u8be5\u4efb\u52a1\u5904\u7406\u53ef\u80fd\u5728\u65b0\u7684\u7ebf\u7a0b\u3001\u5df2\u5165\u6c60\u7684\u7ebf\u7a0b\u6216\u8005\u6b63\u8c03\u7528\u7684\u7ebf\u7a0b\uff0c\u8fd9\u7531ThreadPoolExecutor\u7684\u5b9e\u73b0\u51b3\u5b9a\u3002<br \/>\nnewFixedThreadPool<br \/>\n\u521b\u5efa\u4e00\u4e2a\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\uff0c\u793a\u4f8b\u4e3a\uff1a<\/p>\n<pre>[java]\n    ExecutorService fixedThreadPool = Executors.newFixedThreadPool(3);\n    for (int i = 1; i &amp;lt;= 10; i++) {\n        final int index = i;\n        fixedThreadPool.execute(new Runnable() {\n             @Override\n             public void run() {\n                 String threadName = Thread.currentThread().getName();\n                 Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot;+threadName+&quot;,\u6b63\u5728\u6267\u884c\u7b2c&quot; + index + &quot;\u4e2a\u4efb\u52a1&quot;);\n                 try {\n                        Thread.sleep(2000);\n                 } catch (InterruptedException e) {\n                        e.printStackTrace();\n                 }\n             }\n         });\n     }\n[\/java]<\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u7ebf\u7a0b\u6570\u4e3a3\u7684\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\uff0c\u540c\u7406\u8be5\u7ebf\u7a0b\u6c60\u652f\u6301\u7684\u7ebf\u7a0b\u6700\u5927\u5e76\u53d1\u6570\u4e5f\u662f3\uff0c\u800c\u6211\u6a21\u62df\u4e8610\u4e2a\u4efb\u52a1\u8ba9\u5b83\u5904\u7406\uff0c\u6267\u884c\u7684\u60c5\u51b5\u5219\u662f\u9996\u5148\u6267\u884c\u524d\u4e09\u4e2a\u4efb\u52a1\uff0c\u540e\u97627\u4e2a\u5219\u4f9d\u6b21\u8fdb\u5165\u4efb\u52a1\u961f\u5217\u8fdb\u884c\u7b49\u5f85\uff0c\u6267\u884c\u5b8c\u524d\u4e09\u4e2a\u4efb\u52a1\u540e\uff0c\u518d\u901a\u8fc7FIFO\u7684\u65b9\u5f0f\u4ece\u4efb\u52a1\u961f\u5217\u4e2d\u53d6\u4efb\u52a1\u6267\u884c\uff0c\u76f4\u5230\u6700\u540e\u4efb\u52a1\u90fd\u6267\u884c\u5b8c\u6bd5\u3002<br \/>\n\u4e3a\u4e86\u4f53\u73b0\u51fa\u7ebf\u7a0b\u7684\u590d\u7528\uff0c\u6211\u7279\u5730\u5728Log\u4e2d\u52a0\u4e0a\u4e86\u5f53\u524d\u7ebf\u7a0b\u7684\u540d\u79f0\uff0c\u6548\u679c\u4e3a\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151116182357008\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\nnewSingleThreadExecutor<br \/>\n\u521b\u5efa\u4e00\u4e2a\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u7684\u7ebf\u7a0b\u6c60\uff0c\u6bcf\u6b21\u53ea\u80fd\u6267\u884c\u4e00\u4e2a\u7ebf\u7a0b\u4efb\u52a1\uff0c\u591a\u4f59\u7684\u4efb\u52a1\u4f1a\u4fdd\u5b58\u5230\u4e00\u4e2a\u4efb\u52a1\u961f\u5217\u4e2d\uff0c\u7b49\u5f85\u7ebf\u7a0b\u5904\u7406\u5b8c\u518d\u4f9d\u6b21\u5904\u7406\u4efb\u52a1\u961f\u5217\u4e2d\u7684\u4efb\u52a1\uff0c\u793a\u4f8b\u4e3a\uff1a<\/p>\n<pre>[java]\n        ExecutorService singleThreadPool = Executors.newSingleThreadExecutor();\n        for (int i = 1; i &amp;lt;= 10; i++) {\n            final int index = i;\n            singleThreadPool.execute(new Runnable() {\n                @Override\n                public void run() {\n                    String threadName = Thread.currentThread().getName();\n                    Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot;+threadName+&quot;,\u6b63\u5728\u6267\u884c\u7b2c&quot; + index + &quot;\u4e2a\u4efb\u52a1&quot;);\n                    try {\n                        Thread.sleep(1000);\n                    } catch (InterruptedException e) {\n                        e.printStackTrace();\n                    }\n                }\n            });\n        }\n[\/java]<\/pre>\n<p>\u4ee3\u7801\u8fd8\u662f\u5dee\u4e0d\u591a\uff0c\u53ea\u4e0d\u8fc7\u6539\u4e86\u7ebf\u7a0b\u6c60\u7684\u5b9e\u73b0\u65b9\u5f0f\uff0c\u6548\u679c\u6211\u60f3\u5927\u5bb6\u90fd\u77e5\u9053\uff0c\u5373\u4f9d\u6b21\u4e00\u4e2a\u4e00\u4e2a\u7684\u5904\u7406\u4efb\u52a1\uff0c\u800c\u4e14\u90fd\u662f\u590d\u7528\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u6548\u679c\u4e3a\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151116182627850\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u5176\u5b9e\u6211\u4eec\u901a\u8fc7newSingleThreadExecutor()\u548cnewFixedThreadPool()\u7684\u65b9\u6cd5\u53d1\u73b0\uff0c\u521b\u5efa\u4e00\u4e2asingleThreadExecutorPool\u5b9e\u9645\u4e0a\u5c31\u662f\u521b\u5efa\u4e00\u4e2a\u6838\u5fc3\u7ebf\u7a0b\u6570\u548c\u6700\u5927\u7ebf\u7a0b\u6570\u90fd\u4e3a1\u7684fixedThreadPool\u3002<br \/>\nnewCachedThreadPool<br \/>\n\u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8c03\u6574\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u7684\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\uff0c\u793a\u4f8b\u4e3a\uff1a<\/p>\n<pre>[java]\n        ExecutorService cachedThreadPool = Executors.newCachedThreadPool();\n        for (int i = 1; i &amp;lt;= 10; i++) {\n            final int index = i;\n            try {\n                Thread.sleep(1000);\n            } catch (InterruptedException e) {\n                e.printStackTrace();\n            }\n            cachedThreadPool.execute(new Runnable() {\n                @Override\n                public void run() {\n                    String threadName = Thread.currentThread().getName();\n                    Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot; + threadName + &quot;,\u6b63\u5728\u6267\u884c\u7b2c&quot; + index + &quot;\u4e2a\u4efb\u52a1&quot;);\n                    try {\n                        long time = index * 500;\n                        Thread.sleep(time);\n                    } catch (InterruptedException e) {\n                        e.printStackTrace();\n                    }\n                }\n            });\n        }[\/java]<\/pre>\n<p>\u4e3a\u4e86\u4f53\u73b0\u8be5\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u81ea\u52a8\u6839\u636e\u5b9e\u73b0\u60c5\u51b5\u8fdb\u884c\u7ebf\u7a0b\u7684\u91cd\u7528\uff0c\u800c\u4e0d\u662f\u4e00\u5473\u7684\u521b\u5efa\u65b0\u7684\u7ebf\u7a0b\u53bb\u5904\u7406\u4efb\u52a1\uff0c\u6211\u8bbe\u7f6e\u4e86\u6bcf\u96941s\u53bb\u63d0\u4ea4\u4e00\u4e2a\u65b0\u4efb\u52a1\uff0c\u8fd9\u4e2a\u65b0\u4efb\u52a1\u6267\u884c\u7684\u65f6\u95f4\u4e5f\u662f\u52a8\u6001\u53d8\u5316\u7684\uff0c\u6240\u4ee5\uff0c\u6548\u679c\u4e3a\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151116184528454\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\nnewScheduledThreadPool<br \/>\n\u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u5b9a\u65f6\u6216\u8005\u5468\u671f\u6027\u6267\u884c\u4efb\u52a1\u7684\u7ebf\u7a0b\u6c60\uff0c\u793a\u4f8b\u4e3a\uff1a<\/p>\n<pre>[java]\n        ScheduledExecutorService scheduledThreadPool = Executors.newScheduledThreadPool(3);\n        \/\/\u5ef6\u8fdf2\u79d2\u540e\u6267\u884c\u8be5\u4efb\u52a1\n        scheduledThreadPool.schedule(new Runnable() {\n            @Override\n            public void run() {\n\n            }\n        }, 2, TimeUnit.SECONDS);\n        \/\/\u5ef6\u8fdf1\u79d2\u540e\uff0c\u6bcf\u96942\u79d2\u6267\u884c\u4e00\u6b21\u8be5\u4efb\u52a1\n        scheduledThreadPool.scheduleAtFixedRate(new Runnable() {\n            @Override\n            public void run() {\n\n            }\n        }, 1, 2, TimeUnit.SECONDS);\n[\/java]<\/pre>\n<p>newSingleThreadScheduledExecutor<br \/>\n\u521b\u5efa\u4e00\u4e2a\u53ef\u4ee5\u5b9a\u65f6\u6216\u8005\u5468\u671f\u6027\u6267\u884c\u4efb\u52a1\u7684\u7ebf\u7a0b\u6c60\uff0c\u8be5\u7ebf\u7a0b\u6c60\u7684\u7ebf\u7a0b\u6570\u4e3a1\uff0c\u793a\u4f8b\u4e3a\uff1a<\/p>\n<pre>[java]        ScheduledExecutorService singleThreadScheduledPool = Executors.newSingleThreadScheduledExecutor();\n        \/\/\u5ef6\u8fdf1\u79d2\u540e\uff0c\u6bcf\u96942\u79d2\u6267\u884c\u4e00\u6b21\u8be5\u4efb\u52a1\n        singleThreadScheduledPool.scheduleAtFixedRate(new Runnable() {\n            @Override\n            public void run() {\n                String threadName = Thread.currentThread().getName();\n                Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot; + threadName + &quot;,\u6b63\u5728\u6267\u884c&quot;);\n            }\n        },1,2,TimeUnit.SECONDS);\n[\/java]<\/pre>\n<p>\u5b9e\u9645\u4e0a\u8fd9\u4e2a\u548c\u4e0a\u9762\u7684\u6ca1\u4ec0\u4e48\u592a\u5927\u533a\u522b\uff0c\u53ea\u4e0d\u8fc7\u662f\u7ebf\u7a0b\u6c60\u5185\u7ebf\u7a0b\u6570\u91cf\u7684\u4e0d\u540c\uff0c\u6548\u679c\u4e3a\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151116194526184\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><br \/>\n\u6bcf\u96942\u79d2\u5c31\u4f1a\u6267\u884c\u4e00\u6b21\u8be5\u4efb\u52a1<\/p>\n<p>\u81ea\u5b9a\u4e49\u7ebf\u7a0b\u6c60ThreadPoolExecutor<\/p>\n<p>Java\u5185\u7f6e\u53ea\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e94\u79cd\u5e38\u7528\u7684\u7ebf\u7a0b\u6c60\uff0c\u4e00\u822c\u6765\u8bf4\u8fd9\u8db3\u591f\u7528\u4e86\uff0c\u4e0d\u8fc7\u6709\u65f6\u5019\u6211\u4eec\u4e5f\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u6765\u81ea\u5b9a\u4e49\u6211\u4eec\u81ea\u5df1\u7684\u7ebf\u7a0b\u6c60\uff0c\u800c\u8981\u81ea\u5b9a\u4e49\u4e0d\u540c\u529f\u80fd\u7684\u7ebf\u7a0b\u6c60\uff0c\u4e0a\u9762\u6211\u4eec\u4e5f\u8bf4\u4e86\u7ebf\u7a0b\u6c60\u529f\u80fd\u7684\u4e0d\u540c\u5f52\u6839\u5230\u5e95\u8fd8\u662f\u5185\u90e8\u7684BlockingQueue\u5b9e\u73b0\u4e0d\u540c\uff0c\u6240\u4ee5\uff0c\u6211\u4eec\u8981\u5b9e\u73b0\u6211\u4eec\u81ea\u5df1\u76f8\u8981\u7684\u7ebf\u7a0b\u6c60\uff0c\u5c31\u5fc5\u987b\u4eceBlockingQueue\u7684\u5b9e\u73b0\u4e0a\u505a\u624b\u811a\uff0c\u800c\u4e0a\u9762\u4e5f\u8bf4\u4e86BlockingQueue\u7684\u5b9e\u73b0\u7c7b\u6709\u591a\u4e2a\uff0c\u90a3\u4e48\u8fd9\u6b21\u6211\u4eec\u5c31\u9009\u7528PriorityBlockingQueue\u6765\u5b9e\u73b0\u4e00\u4e2a\u529f\u80fd\u662f\u6309\u4efb\u52a1\u7684\u4f18\u5148\u7ea7\u6765\u5904\u7406\u7684\u7ebf\u7a0b\u6c60\u3002<\/p>\n<p>1\u3001\u9996\u5148\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u57fa\u4e8ePriorityBlockingQueue\u5b9e\u73b0\u7684\u7ebf\u7a0b\u6c60\uff0c\u4e3a\u4e86\u6d4b\u8bd5\u65b9\u4fbf\uff0c\u6211\u8fd9\u91cc\u628a\u6838\u5fc3\u7ebf\u7a0b\u6570\u91cf\u8bbe\u7f6e\u4e3a3\uff0c\u5982\u4e0b\uff1a<\/p>\n<p>ExecutorService priorityThreadPool = new ThreadPoolExecutor(3,3,0L,TimeUnit.SECONDS,new PriorityBlockingQueue());<br \/>\n1<br \/>\n2\u3001\u7136\u540e\u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0Runnable\u63a5\u53e3\u7684\u7c7b\uff0c\u5e76\u5411\u5916\u63d0\u4f9b\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5\u4f9b\u6211\u4eec\u5b9e\u73b0\u81ea\u5b9a\u4e49\u529f\u80fd\uff0c\u5e76\u5b9e\u73b0Comparable\u63a5\u53e3\uff0c\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\u4e3b\u8981\u5c31\u662f\u8fdb\u884c\u4f18\u5148\u7ea7\u7684\u6bd4\u8f83\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>[java]public abstract class PriorityRunnable implements Runnable, Comparable&amp;lt;PriorityRunnable&amp;gt; {\n    private int priority;\n\n    public PriorityRunnable(int priority) {\n        if (priority &amp;lt; 0)\n            throw new IllegalArgumentException();\n        this.priority = priority;\n    }\n\n    @Override\n    public int compareTo(PriorityRunnable another) {\n        int my = this.getPriority();\n        int other = another.getPriority();\n        return my &amp;lt; other ? 1 : my &amp;gt; other ? -1 : 0;\n    }\n\n    @Override\n    public void run() {\n        doSth();\n    }\n\n    public abstract void doSth();\n\n    public int getPriority() {\n        return priority;\n    }\n}\n[\/java]<\/pre>\n<p>3\u3001\u4f7f\u7528\u6211\u4eec\u81ea\u5df1\u7684PriorityRunnable\u63d0\u4ea4\u4efb\u52a1\uff0c\u6574\u4f53\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>[java]       ExecutorService priorityThreadPool = new ThreadPoolExecutor(3, 3, 0L, TimeUnit.SECONDS, new PriorityBlockingQueue&amp;lt;Runnable&amp;gt;());\n        for (int i = 1; i &amp;lt;= 10; i++) {\n            final int priority = i;\n            priorityThreadPool.execute(new PriorityRunnable(priority) {\n                @Override\n                public void doSth() {\n                    String threadName = Thread.currentThread().getName();\n                    Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot; + threadName + &quot;,\u6b63\u5728\u6267\u884c\u4f18\u5148\u7ea7\u4e3a\uff1a&quot; + priority + &quot;\u7684\u4efb\u52a1&quot;);\n                    try {\n                        Thread.sleep(2000);\n                    } catch (InterruptedException e) {\n                        e.printStackTrace();\n                    }\n                }\n            });\n        }\n[\/java]<\/pre>\n<p>\u6d4b\u8bd5\u6548\u679c<\/p>\n<p>\u6211\u4eec\u770b\u4e0b\u521a\u521a\u81ea\u5b9a\u4e49\u7684\u7ebf\u7a0b\u6c60\u662f\u5426\u8fbe\u5230\u4e86\u6211\u4eec\u60f3\u8981\u7684\u529f\u80fd\uff0c\u5373\u6839\u636e\u4efb\u52a1\u7684\u4f18\u5148\u7ea7\u8fdb\u884c\u4f18\u5148\u5904\u7406\u4efb\u52a1\uff0c\u6548\u679c\u5982\u4e0b\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151116212159326\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u53ef\u4ee5\u4ece\u6267\u884c\u7ed3\u679c\u4e2d\u770b\u51fa\uff0c\u7531\u4e8e\u6838\u5fc3\u7ebf\u7a0b\u6570\u8bbe\u7f6e\u4e3a3\uff0c\u521a\u5f00\u59cb\u65f6\uff0c\u7cfb\u7edf\u67093\u4e2a\u7a7a\u95f2\u7ebf\u7a0b\uff0c\u6240\u4ee5\u65e0\u987b\u4f7f\u7528\u4efb\u52a1\u961f\u5217\uff0c\u800c\u662f\u76f4\u63a5\u8fd0\u884c\u524d\u4e09\u4e2a\u4efb\u52a1\uff0c\u800c\u540e\u9762\u518d\u63d0\u4ea4\u4efb\u52a1\u65f6\u7531\u4e8e\u5f53\u524d\u6ca1\u6709\u7a7a\u95f2\u7ebf\u7a0b\u6240\u4ee5\u52a0\u5165\u4efb\u52a1\u961f\u5217\u4e2d\u8fdb\u884c\u7b49\u5f85\uff0c\u6b64\u65f6\uff0c\u7531\u4e8e\u6211\u4eec\u7684\u4efb\u52a1\u961f\u5217\u5b9e\u73b0\u662f\u7531PriorityBlockingQueue\u5b9e\u73b0\u7684\uff0c\u6240\u4ee5\u8fdb\u884c\u7b49\u5f85\u7684\u4efb\u52a1\u4f1a\u7ecf\u8fc7\u4f18\u5148\u7ea7\u5224\u65ad\uff0c\u4f18\u5148\u7ea7\u9ad8\u7684\u653e\u5728\u961f\u5217\u524d\u9762\u5148\u5904\u7406\u3002\u4ece\u6548\u679c\u56fe\u4e2d\u4e5f\u53ef\u4ee5\u770b\u5230\u540e\u9762\u7684\u4efb\u52a1\u662f\u5148\u6267\u884c\u4f18\u5148\u7ea7\u9ad8\u7684\u4efb\u52a1\uff0c\u7136\u540e\u4f9d\u6b21\u9012\u51cf\u3002<\/p>\n<p>\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6c60\u7684\u4f18\u70b9<\/p>\n<p>\u4ece\u4e0a\u9762\u6211\u4eec\u53ef\u4ee5\u5f97\u77e5\uff0c\u521b\u5efa\u4e00\u4e2a\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6c60\u975e\u5e38\u6709\u7528\uff0c\u5b83\u53ef\u4ee5\u5728\u7ebf\u7a0b\u6c60\u4e2d\u7ebf\u7a0b\u6570\u91cf\u4e0d\u8db3\u6216\u7cfb\u7edf\u8d44\u6e90\u7d27\u5f20\u65f6\uff0c\u4f18\u5148\u5904\u7406\u6211\u4eec\u60f3\u8981\u5148\u5904\u7406\u7684\u4efb\u52a1\uff0c\u800c\u4f18\u5148\u7ea7\u4f4e\u7684\u5219\u653e\u5230\u540e\u9762\u518d\u5904\u7406\uff0c\u8fd9\u6781\u5927\u6539\u5584\u4e86\u7cfb\u7edf\u9ed8\u8ba4\u7ebf\u7a0b\u6c60\u4ee5FIFO\u65b9\u5f0f\u5904\u7406\u4efb\u52a1\u7684\u4e0d\u7075\u6d3b<\/p>\n<p>\u6269\u5c55\u7ebf\u7a0b\u6c60ThreadPoolExecutor<\/p>\n<p>\u9664\u4e86\u5185\u7f6e\u7684\u529f\u80fd\u5916\uff0cThreadPoolExecutor\u4e5f\u5411\u5916\u63d0\u4f9b\u4e86\u4e09\u4e2a\u63a5\u53e3\u4f9b\u6211\u4eec\u81ea\u5df1\u6269\u5c55\u6ee1\u8db3\u6211\u4eec\u9700\u6c42\u7684\u7ebf\u7a0b\u6c60\uff0c\u8fd9\u4e09\u4e2a\u63a5\u53e3\u5206\u522b\u662f\uff1a<\/p>\n<p>beforeExecute() &#8211; \u4efb\u52a1\u6267\u884c\u524d\u6267\u884c\u7684\u65b9\u6cd5<br \/>\nafterExecute() -\u4efb\u52a1\u6267\u884c\u7ed3\u675f\u540e\u6267\u884c\u7684\u65b9\u6cd5<br \/>\nterminated() -\u7ebf\u7a0b\u6c60\u5173\u95ed\u540e\u6267\u884c\u7684\u65b9\u6cd5<br \/>\n\u8fd9\u4e09\u4e2a\u65b9\u6cd5\u5728ThreadPoolExecutor\u5185\u90e8\u90fd\u6ca1\u6709\u5b9e\u73b0<\/p>\n<p>\u524d\u9762\u4e24\u4e2a\u65b9\u6cd5\u6211\u4eec\u53ef\u4ee5\u5728ThreadPoolExecutor\u5185\u90e8\u7684runWorker()\u65b9\u6cd5\u4e2d\u627e\u5230\uff0c\u800crunWorker()\u662fThreadPoolExecutor\u7684\u5185\u90e8\u7c7bWorker\u5b9e\u73b0\u7684\u65b9\u6cd5\uff0cWorker\u5b83\u5b9e\u73b0\u4e86Runnable\u63a5\u53e3\uff0c\u4e5f\u6b63\u662f\u7ebf\u7a0b\u6c60\u5185\u5904\u7406\u4efb\u52a1\u7684\u5de5\u4f5c\u7ebf\u7a0b\uff0c\u800cWorker.runWorker()\u65b9\u6cd5\u5219\u662f\u5904\u7406\u6211\u4eec\u6240\u63d0\u4ea4\u7684\u4efb\u52a1\u7684\u65b9\u6cd5\uff0c\u5b83\u4f1a\u540c\u65f6\u88ab\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\uff0c\u6240\u4ee5\u6211\u4eec\u770brunWorker()\u65b9\u6cd5\u7684\u5b9e\u73b0\uff0c\u7531\u4e8e\u6d89\u53ca\u5230\u591a\u4e2a\u7ebf\u7a0b\u7684\u5f02\u6b65\u8c03\u7528\uff0c\u5fc5\u7136\u662f\u9700\u8981\u4f7f\u7528\u9501\u6765\u5904\u7406\uff0c\u800c\u8fd9\u91cc\u4f7f\u7528\u7684\u662fLock\u6765\u5b9e\u73b0\u7684\uff0c\u6211\u4eec\u6765\u770b\u770brunWorker()\u65b9\u6cd5\u5185\u4e3b\u8981\u5b9e\u73b0\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151117141139792\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\u5728task.run()\u4e4b\u524d\u548c\u4e4b\u540e\u5206\u522b\u8c03\u7528\u4e86beforeExecute\u548cafterExecute\u65b9\u6cd5\uff0c\u5e76\u4f20\u5165\u4e86\u6211\u4eec\u7684\u4efb\u52a1Runnable\u5bf9\u8c61<\/p>\n<p>\u800cterminated()\u5219\u662f\u5728\u5173\u95ed\u7ebf\u7a0b\u6c60\u7684\u65b9\u6cd5\u4e2d\u8c03\u7528\uff0c\u800c\u5173\u95ed\u7ebf\u7a0b\u6c60\u6709\u4e24\u4e2a\u65b9\u6cd5\uff0c\u6211\u8d34\u5176\u4e2d\u4e00\u4e2a\uff1a<br \/>\n<img decoding=\"async\" title=\"\" src=\"http:\/\/img.blog.csdn.net\/20151117141553421\" alt=\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u6240\u4ee5\uff0c\u6211\u4eec\u8981\u6269\u5c55\u7ebf\u7a0b\u6c60\uff0c\u53ea\u9700\u8981\u91cd\u5199\u8fd9\u4e09\u4e2a\u65b9\u6cd5\uff0c\u5e76\u5b9e\u73b0\u6211\u4eec\u81ea\u5df1\u7684\u529f\u80fd\u5373\u53ef\uff0c\u8fd9\u4e09\u4e2a\u65b9\u6cd5\u5206\u522b\u90fd\u4f1a\u5728\u4efb\u52a1\u6267\u884c\u524d\u8c03\u7528\u3001\u4efb\u52a1\u6267\u884c\u5b8c\u6210\u540e\u8c03\u7528\u3001\u7ebf\u7a0b\u6c60\u5173\u95ed\u540e\u8c03\u7528\u3002<br \/>\n\u8fd9\u91cc\u6211\u9a8c\u8bc1\u4e00\u4e0b\uff0c\u7ee7\u627f\u81eaThreadPoolExecutor \u5e76\u5b9e\u73b0\u90a3\u4e09\u4e2a\u65b9\u6cd5\uff1a<\/p>\n<pre>[java]\npublic class MyThreadPoolExecutor extends ThreadPoolExecutor {\n    public MyThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue&amp;lt;Runnable&amp;gt; workQueue) {\n        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);\n    }\n\n    @Override\n    protected void beforeExecute(Thread t, Runnable r) {\n        super.beforeExecute(t, r);\n        String threadName = t.getName();\n        Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot; + threadName + &quot;\u51c6\u5907\u6267\u884c\u4efb\u52a1\uff01&quot;);\n    }\n\n    @Override\n    protected void afterExecute(Runnable r, Throwable t) {\n        super.afterExecute(r, t);\n        String threadName = Thread.currentThread().getName();\n        Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\uff1a&quot; + threadName + &quot;\u4efb\u52a1\u6267\u884c\u7ed3\u675f\uff01&quot;);\n    }\n\n    @Override\n    protected void terminated() {\n        super.terminated();\n        Log.v(&quot;zxy&quot;, &quot;\u7ebf\u7a0b\u6c60\u7ed3\u675f\uff01&quot;);\n    }\n}\n\n\u800c\u8fd0\u884c\u540e\u7684\u7ed3\u679c\u5219\u662f\uff0c\u8fd9\u6b63\u7b26\u5408\u521a\u521a\u8bf4\u7684\uff1a\n\n11-17 05:47:51.184 1602-1619\/? V\/zxy: \u7ebf\u7a0b\uff1apool-6-thread-1\u51c6\u5907\u6267\u884c\u4efb\u52a1\uff01\n11-17 05:47:51.184 1602-1619\/? V\/zxy: \u7ebf\u7a0b\uff1apool-6-thread-1\u6b63\u5728\u6267\u884c\u4efb\u52a1\uff01\n11-17 05:47:53.184 1602-1619\/? V\/zxy: \u7ebf\u7a0b\uff1apool-6-thread-1\u4efb\u52a1\u6267\u884c\u7ed3\u675f\uff01\n11-17 05:47:58.896 1602-1619\/? V\/zxy: \u7ebf\u7a0b\u6c60\u7ed3\u675f\uff01\n[\/java]<\/pre>\n<p>\u6240\u4ee5\uff0c\u5728\u4e0a\u9762\u6211\u4eec\u7684\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6c60\u7684\u4ee3\u7801\u4e0a\uff0c\u6211\u4eec\u518d\u6269\u5c55\u4e00\u4e2a\u5177\u6709\u6682\u505c\u529f\u80fd\u7684\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6c60\uff0c\u4ee3\u7801\u5982\u4e0b\uff1a<br \/>\n\u5177\u6709\u6682\u65f6\u529f\u80fd\u7684\u7ebf\u7a0b\u6c60\uff1a<\/p>\n<pre>[java]\npublic class PausableThreadPoolExecutor extends ThreadPoolExecutor {\n    private boolean isPaused;\n    private ReentrantLock pauseLock = new ReentrantLock();\n    private Condition unpaused = pauseLock.newCondition();\n\n    public PausableThreadPoolExecutor(int corePoolSize, int maximumPoolSize, long keepAliveTime, TimeUnit unit, BlockingQueue&amp;lt;Runnable&amp;gt; workQueue) {\n        super(corePoolSize, maximumPoolSize, keepAliveTime, unit, workQueue);\n    }\n\n    @Override\n    protected void beforeExecute(Thread t, Runnable r) {\n        super.beforeExecute(t, r);\n        pauseLock.lock();\n        try {\n            while (isPaused) unpaused.await();\n        } catch (InterruptedException ie) {\n            t.interrupt();\n        } finally {\n            pauseLock.unlock();\n        }\n\n    }\n\n    public void pause() {\n        pauseLock.lock();\n        try {\n            isPaused = true;\n        } finally {\n            pauseLock.unlock();\n        }\n    }\n\n    public void resume() {\n        pauseLock.lock();\n        try {\n            isPaused = false;\n            unpaused.signalAll();\n        } finally {\n            pauseLock.unlock();\n        }\n    }\n}[\/java]<\/pre>\n<p>\u7136\u540e\u7ed3\u5408\u4e0a\u9762\u7684\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6c60\u7684\u5b9e\u73b0\uff0c\u521b\u5efa\u5177\u6709\u6682\u505c\u529f\u80fd\u7684\u4f18\u5148\u7ea7\u7ebf\u7a0b\u6c60\uff1a<\/p>\n<pre>[java]      PausableThreadPoolExecutor pausableThreadPoolExecutor = new PausableThreadPoolExecutor(1, 1, 0L, TimeUnit.SECONDS, new PriorityBlockingQueue&amp;lt;Runnable&amp;gt;());\n        for (int i = 1; i &amp;lt;= 100; i++) {\n            final int priority = i;\n            pausableThreadPoolExecutor.execute(new PriorityRunnable(priority) {\n                @Override\n                public void doSth() {\n                    runOnUiThread(new Runnable() {\n                        @Override\n                        public void run() {\n                            textView.setText(priority + &quot;&quot;);\n                        }\n                    });\n                    try {\n                        Thread.sleep(1000);\n                    } catch (InterruptedException e) {\n                        e.printStackTrace();\n                    }\n                }\n            });\n        }\n[\/java]<\/pre>\n<p>\u8fd9\u91cc\u6211\u4e3a\u4e86\u6f14\u793a\u6548\u679c\uff0c\u628a\u8fd9\u4e2a\u7ebf\u7a0b\u6c60\u8bbe\u4e3a\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u7136\u540e\u76f4\u63a5\u5728TextView\u4e2d\u663e\u793a\u5f53\u524d\u6267\u884c\u7684\u4efb\u52a1\u7684\u4f18\u5148\u7ea7\uff0c\u7136\u540e\u8bbe\u7f6e\u4e2a\u5f00\u5173\uff0c\u63a7\u5236\u7ebf\u7a0b\u6c60\u7684\u6682\u505c\u4e0e\u5f00\u59cb\uff1a<\/p>\n<pre>[java]        if (isPause) {\n            pausableThreadPoolExecutor.resume();\n            isPause = false;\n        } else {\n            pausableThreadPoolExecutor.pause();\n            isPause = true;\n        }[\/java]<\/pre>\n<p>\u6548\u679c\u4e3a\uff1a<br \/>\n\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0<\/p>\n<p>\u4ece\u6548\u679c\u4e0a\u6765\u770b\uff0c\u8be5\u7ebf\u7a0b\u6c60\u548c\u4f18\u5148\u7ea7\u7ebf\u7a0b\u4e00\u6837\uff0c\u800c\u4e14\u8fd8\u591a\u4e86\u4e00\u4e2a\u6682\u505c\u4e0e\u5f00\u59cb\u7684\u529f\u80fd<\/p>\n<p>\u4f18\u5316\u7ebf\u7a0b\u6c60ThreadPoolExecutor<\/p>\n<p>\u867d\u8bf4\u7ebf\u7a0b\u6c60\u6781\u5927\u6539\u5584\u4e86\u7cfb\u7edf\u7684\u6027\u80fd\uff0c\u4e0d\u8fc7\u521b\u5efa\u7ebf\u7a0b\u6c60\u4e5f\u662f\u9700\u8981\u8d44\u6e90\u7684\uff0c\u6240\u4ee5\u7ebf\u7a0b\u6c60\u5185\u7ebf\u7a0b\u6570\u91cf\u7684\u5927\u5c0f\u4e5f\u4f1a\u5f71\u54cd\u7cfb\u7edf\u7684\u6027\u80fd\uff0c\u5927\u4e86\u53cd\u800c\u6d6a\u8d39\u8d44\u6e90\uff0c\u5c0f\u4e86\u53cd\u800c\u5f71\u54cd\u7cfb\u7edf\u7684\u541e\u5410\u91cf\uff0c\u6240\u4ee5\u6211\u4eec\u521b\u5efa\u7ebf\u7a0b\u6c60\u9700\u8981\u628a\u63e1\u4e00\u4e2a\u5ea6\u624d\u80fd\u5408\u7406\u7684\u53d1\u6325\u5b83\u7684\u4f18\u70b9\uff0c\u901a\u5e38\u6765\u8bf4\u6211\u4eec\u8981\u8003\u8651\u7684\u56e0\u7d20\u6709CPU\u7684\u6570\u91cf\u3001\u5185\u5b58\u7684\u5927\u5c0f\u3001\u5e76\u53d1\u8bf7\u6c42\u7684\u6570\u91cf\u7b49\u56e0\u7d20\uff0c\u6309\u9700\u8c03\u6574\u3002<\/p>\n<p>\u901a\u5e38\u6838\u5fc3\u7ebf\u7a0b\u6570\u53ef\u4ee5\u8bbe\u4e3aCPU\u6570\u91cf+1\uff0c\u800c\u6700\u5927\u7ebf\u7a0b\u6570\u53ef\u4ee5\u8bbe\u4e3aCPU\u7684\u6570\u91cf*2+1\u3002<\/p>\n<p>\u83b7\u53d6CPU\u6570\u91cf\u7684\u65b9\u6cd5\u4e3a\uff1a<\/p>\n<pre>[java]\nRuntime.getRuntime().availableProcessors();\n[\/java]<\/pre>\n<p>shutdown()\u548cshutdownNow()\u7684\u533a\u522b<\/p>\n<p>\u5173\u4e8e\u7ebf\u7a0b\u6c60\u7684\u505c\u6b62\uff0cExecutorService\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u4e24\u4e2a\u65b9\u6cd5\uff1ashutdown\u548cshutdownNow\uff0c\u8fd9\u4e24\u4e2a\u65b9\u6cd5\u5404\u6709\u4e0d\u540c\uff0c\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u65b9\u4fbf\u7684\u8fd0\u7528\uff0c\u5982\u4e0b\uff1a<\/p>\n<p>1\u3001shutdown()\u65b9\u6cd5\u5728\u7ec8\u6b62\u524d\u5141\u8bb8\u6267\u884c\u4ee5\u524d\u63d0\u4ea4\u7684\u4efb\u52a1\u3002<br \/>\n2\u3001shutdownNow()\u65b9\u6cd5\u5219\u662f\u963b\u6b62\u6b63\u5728\u4efb\u52a1\u961f\u5217\u4e2d\u7b49\u5f85\u4efb\u52a1\u7684\u542f\u52a8\u5e76\u8bd5\u56fe\u505c\u6b62\u5f53\u524d\u6b63\u5728\u6267\u884c\u7684\u4efb\u52a1\u3002<br \/>\n\u5173\u4e8eAsyncTask\u7684\u5b9e\u73b0<\/p>\n<p>\u5927\u5bb6\u90fd\u77e5\u9053AsyncTask\u5185\u90e8\u5b9e\u73b0\u5176\u5b9e\u5c31\u662fThread+Handler\u3002\u5176\u4e2dHandler\u662f\u4e3a\u4e86\u5904\u7406\u7ebf\u7a0b\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u800c\u8fd9\u4e2aThread\u5230\u5e95\u662f\u6307\u4ec0\u4e48\u5462\uff1f\u901a\u8fc7AsyncTask\u6e90\u7801\u53ef\u4ee5\u5f97\u77e5\uff0c\u5176\u5b9e\u8fd9\u4e2aThread\u662f\u7ebf\u7a0b\u6c60\uff0cAsyncTask\u5185\u90e8\u5b9e\u73b0\u4e86\u4e24\u4e2a\u7ebf\u7a0b\u6c60\uff0c\u5206\u522b\u662f\uff1a\u4e32\u884c\u7ebf\u7a0b\u6c60\u548c\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\u3002\u800c\u8fd9\u4e2a\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u5219\u662f\u901a\u8fc7CPU\u7684\u6570\u91cf\u51b3\u5b9a\u7684\u3002<\/p>\n<p>\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5927\u90fd\u901a\u8fc7AsyncTask::execute()\u6765\u6267\u884c\u4efb\u52a1\u7684\uff0c<br \/>\n\uff0c\u800cexecute()\u5185\u90e8\u5219\u662f\u8c03\u7528executeOnExecutor(sDefaultExecutor, params)\u65b9\u6cd5\u6267\u884c\u7684\uff0c\u7b2c\u4e00\u4e2a\u53c2\u6570\u5c31\u662f\u6307\u5b9a\u5904\u7406\u8be5\u4efb\u52a1\u7684\u7ebf\u7a0b\u6c60\uff0c\u800c\u9ed8\u8ba4\u60c5\u51b5\u4e0bAsyncTask\u662f\u4f20\u5165\u4e32\u884c\u7ebf\u7a0b\u6c60\uff08\u5728\u8fd9\u91cc\u4e0d\u8bb2\u7248\u672c\u7684\u53d8\u5316\uff09\uff0c\u4e5f\u5c31\u662f\u4efb\u52a1\u53ea\u80fd\u5355\u4e2a\u7684\u6309\u987a\u5e8f\u6267\u884c\uff0c\u800c\u6211\u4eec\u8981\u662f\u60f3\u8ba9AsyncTask\u5e76\u884c\u7684\u5904\u7406\u4efb\u52a1\uff0c\u5927\u5bb6\u90fd\u77e5\u9053\u8c03\u7528AsyncTask::executeOnExecutor(sDefaultExecutor, params)\u65b9\u6cd5\u4f20\u5165\u8fd9\u4e2a\u53c2\u6570\u5373\u53ef\uff1aAsyncTask.THREAD_POOL_EXECUTOR\u3002<br \/>\n\u800c\u8fd9\u4e2a\u53c2\u6570\u7684\u610f\u4e49\u5728\u4e8e\u4e3a\u4efb\u52a1\u6307\u5b9a\u4e86\u4e00\u4e2a\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\u53bb\u5904\u7406\uff0c\u4ece\u800c\u8fbe\u5230\u4e86\u5e76\u884c\u5904\u7406\u7684\u529f\u80fd\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u6e90\u7801\u4e2d\u770b\u5230AsyncTask.THREAD_POOL_EXECUTOR\u8fd9\u4e2a\u53c2\u6570\u5c31\u662f\u4e00\u4e2a\u56fa\u5b9a\u7ebf\u7a0b\u6570\u91cf\u7684\u7ebf\u7a0b\u6c60\uff1a<\/p>\n<pre>[java]   public static final Executor THREAD_POOL_EXECUTOR\n            = new ThreadPoolExecutor(CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE,\n                    TimeUnit.SECONDS, sPoolWorkQueue, sThreadFactory);[\/java]<\/pre>\n<p>\u539f\u6587\u51fa\u5904:<a href=\"http:\/\/blog.csdn.net\/u010687392\/article\/details\/49850803\">Sunzxyong<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bf4\u5230\u7ebf\u7a0b\uff0c\u6211\u60f3\u5927\u5bb6\u90fd\u4e0d\u964c\u751f\uff0c\u56e0\u4e3a\u5728\u5f00\u53d1\u65f6\u5019\u6216\u591a\u6216\u5c11\u90fd\u4f1a\u7528\u5230\u7ebf\u7a0b\uff0c\u800c\u901a\u5e38\u521b\u5efa\u7ebf\u7a0b\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[19],"tags":[],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1125"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1125"}],"version-history":[{"count":8,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1125\/revisions"}],"predecessor-version":[{"id":3559,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/1125\/revisions\/3559"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}