{"id":1327,"date":"2023-05-28T10:19:30","date_gmt":"2023-05-28T02:19:30","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=1327"},"modified":"2023-05-28T10:19:31","modified_gmt":"2023-05-28T02:19:31","slug":"%e9%9d%a2%e8%af%95%e5%ae%98-%e6%9c%89%e4%ba%86%e8%a7%a3%e8%bf%87%e7%ba%bf%e7%a8%8b%e6%b1%a0%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86%e5%90%97%ef%bc%9f%e8%af%b4%e8%af%b4%e7%9c%8b","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/%e9%9d%a2%e8%af%95%e5%ae%98-%e6%9c%89%e4%ba%86%e8%a7%a3%e8%bf%87%e7%ba%bf%e7%a8%8b%e6%b1%a0%e7%9a%84%e5%b7%a5%e4%bd%9c%e5%8e%9f%e7%90%86%e5%90%97%ef%bc%9f%e8%af%b4%e8%af%b4%e7%9c%8b\/","title":{"rendered":"\u9762\u8bd5\u5b98: \u6709\u4e86\u89e3\u8fc7\u7ebf\u7a0b\u6c60\u7684\u5de5\u4f5c\u539f\u7406\u5417\uff1f\u8bf4\u8bf4\u770b"},"content":{"rendered":"
\n
\n

\u9762\u8bd5\u5b98: \u6709\u4e86\u89e3\u8fc7\u7ebf\u7a0b\u6c60\u7684\u5de5\u4f5c\u539f\u7406\u5417\uff1f\u8bf4\u8bf4\u770b<\/span><\/h1>\n

\u524d\u8a00<\/span><\/h2>\n

\u76ee\u524d\u6b63\u5728\u51fa\u4e00\u4e2aJava\u591a\u7ebf\u7a0b\u4e13\u9898<\/code>\u957f\u671f\u7cfb\u5217\u6559\u7a0b\uff0c\u4ece\u5165\u95e8\u5230\u8fdb\u9636\u542b\u6e90\u7801\u89e3\u8bfb<\/code>, \u7bc7\u5e45\u4f1a\u8f83\u591a, \u559c\u6b22\u7684\u8bdd\uff0c\u7ed9\u4e2a\u5173\u6ce8\u2764\ufe0f ~<\/p>\n

<\/section>\n

\u672c\u8282\u4e3b\u8981\u5e26\u5927\u5bb6\u4eceThreadPoolExecutor<\/code>\u6e90\u7801\u89d2\u5ea6\u6765\u4e86\u89e3\u4e00\u4e0b\u7ebf\u7a0b\u6c60\u7684\u5de5\u4f5c\u539f\u7406,\u4e00\u8d77\u6765\u770b\u4e0b\u5427~<\/p>\n

Executor \u63a5\u53e3<\/span><\/h2>\n

\u9996\u5148Executor<\/code>\u8fd9\u4e2a\u63a5\u53e3\u662f\u7ebf\u7a0b\u6c60\u5b9e\u73b0\u7684\u9876\u5c42\u63a5\u53e3\u7c7b\uff0c\u6211\u4eec\u4e0a\u8282\u9047\u5230\u7684ExecutorService<\/code>\u4e5f\u662f\u7ee7\u627f\u4e86Executor<\/code><\/p>\n

\u00a0public<\/span>\u00a0void<\/span>\u00a0execute<\/span>(Runnable\u00a0command)<\/span>\u00a0<\/span>{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u5982\u679c\u4efb\u52a1\u4e0d\u5b58\u5728\u00a0\u629b\u7a7a\u5f02\u5e38<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(command\u00a0==\u00a0null<\/span>)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0throw<\/span>\u00a0new<\/span>\u00a0NullPointerException();\n\u00a0\u00a0\u00a0\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u83b7\u53d6\u5f53\u524d\u72b6\u6001\u503c<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0c\u00a0=\u00a0ctl.get();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u5f53\u524d\u7ebf\u7a0b\u6570\u5c0f\u4e8ecorePoolSize,\u5219\u8c03\u7528addWorker\u521b\u5efa\u6838\u5fc3\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(workerCountOf(c)\u00a0<\u00a0corePoolSize)\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(addWorker(command,\u00a0true<\/span>))\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return<\/span>;\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0c\u00a0=\u00a0ctl.get();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u5982\u679c\u4e0d\u5c0f\u4e8ecorePoolSize\uff0c\u5219\u5c06\u4efb\u52a1\u6dfb\u52a0\u5230workQueue\u961f\u5217\u3002<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(isRunning(c)\u00a0&&\u00a0workQueue.offer(command))\u00a0{\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0int<\/span>\u00a0recheck\u00a0=\u00a0ctl.get();\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u5982\u679cisRunning\u8fd4\u56defalse(\u72b6\u6001\u68c0\u67e5)\uff0c\u5219remove\u8fd9\u4e2a\u4efb\u52a1\uff0c\u7136\u540e\u6267\u884c\u62d2\u7edd\u7b56\u7565\u3002<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if<\/span>\u00a0(!\u00a0isRunning(recheck)\u00a0&&\u00a0remove(command))\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0reject(command);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u7ebf\u7a0b\u6c60\u5904\u4e8erunning\u72b6\u6001\uff0c\u4f46\u662f\u6ca1\u6709\u7ebf\u7a0b\uff0c\u5219\u521b\u5efa\u7ebf\u7a0b<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else<\/span>\u00a0if<\/span>\u00a0(workerCountOf(recheck)\u00a0==\u00a00<\/span>)\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0addWorker(null<\/span>,\u00a0false<\/span>);\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u5982\u679c\u653e\u5165workQueue\u5931\u8d25\uff0c\u5219\u521b\u5efa\u975e\u6838\u5fc3\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1\uff0c<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0else<\/span>\u00a0if<\/span>\u00a0(!addWorker(command,\u00a0false<\/span>))\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u5982\u679c\u8fd9\u65f6\u521b\u5efa\u5931\u8d25\uff0c\u5c31\u4f1a\u6267\u884c\u62d2\u7edd\u7b56\u7565\u3002<\/span>\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0reject(command);\n\u00a0\u00a0\u00a0\u00a0}\n<\/code><\/pre>\n
\u5728\u6e90\u7801\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u591a\u6b21\u8fdb\u884c\u4e86isRunning<\/code>\u5224\u65ad\u3002\u5728\u591a\u7ebf\u7a0b\u7684\u73af\u5883\u4e0b\uff0c\u7ebf\u7a0b\u6c60\u7684\u72b6\u6001\u662f\u591a\u53d8\u7684\u3002\u5f88\u6709\u53ef\u80fd\u521a\u83b7\u53d6\u7ebf\u7a0b\u6c60\u72b6\u6001\u540e\u7ebf\u7a0b\u6c60\u72b6\u6001\u5c31\u6539\u53d8\u4e86<\/p>\n
\u603b\u7ed3<\/span><\/h3>\n
\u4e0b\u9762\u7ed9\u5927\u5bb6\u7b80\u8981\u7684\u603b\u7ed3\u4e00\u4e0b\u7ebf\u7a0b\u6c60\u7684\u5904\u7406\u6d41\u7a0b<\/p>\n
    \n
  1. \n
    \n
    \u7ebf\u7a0b\u603b\u6570\u91cf\u5c0f\u4e8e\u7ebf\u7a0b\u6c60\u4e2d\u4fdd\u7559\u7684\u7ebf\u7a0b\u6570\u91cf(corePoolSize)\uff0c\u65e0\u8bba\u7ebf\u7a0b\u662f\u5426\u7a7a\u95f2\uff0c\u90fd\u4f1a\u65b0\u5efa\u4e00\u4e2a\u6838\u5fc3\u7ebf\u7a0b\u6267\u884c\u4efb\u52a1,\u8fd9\u4e00\u6b65\u9700\u8981\u83b7\u53d6\u5168\u5c40\u9501<\/code><\/p>\n<\/section>\n<\/li>\n
  2. \n
    \n
    \u7ebf\u7a0b\u603b\u6570\u91cf\u5927\u4e8ecorePoolSize\u65f6\uff0c\u65b0\u6765\u7684\u7ebf\u7a0b\u4efb\u52a1\u4f1a\u8fdb\u5165\u4efb\u52a1\u961f\u5217\u4e2d\u7b49\u5f85\uff0c\u7136\u540e\u7a7a\u95f2\u7684\u6838\u5fc3\u7ebf\u7a0b\u4f1a\u4f9d\u6b21\u53bb\u7f13\u5b58\u961f\u5217\u4e2d\u53d6\u4efb\u52a1\u6765\u6267\u884c,\u4ece\u800c\u8fbe\u5230\u7ebf\u7a0b\u7684\u590d\u7528<\/p>\n<\/section>\n<\/li>\n
  3. \n
    \n
    \u5f53\u7f13\u5b58\u961f\u5217\u6ee1\u4e86\uff0c\u4f1a\u521b\u5efa\u975e\u6838\u5fc3\u7ebf\u7a0b\u53bb\u6267\u884c\u8fd9\u4e2a\u4efb\u52a1\u3002<\/p>\n<\/section>\n<\/li>\n
  4. \n
    \n
    \u7f13\u5b58\u961f\u5217\u6ee1\u4e86\uff0c \u4e14\u603b\u7ebf\u7a0b\u6570\u8fbe\u5230\u4e86maximumPoolSize\uff0c\u5219\u4f1a\u91c7\u53d6\u62d2\u7edd\u7b56\u7565\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/section>\n<\/li>\n<\/ol>\n
    \u7ed3\u675f\u8bed<\/span><\/h2>\n
    \u5b83\u7684\u6e90\u7801\u8fd8\u662f\u6bd4\u8f83\u957f\u7684\uff0c\u4e00\u7bc7\u6587\u7ae0\u8bf4\u4e0d\u6e05\u695a\uff0c\u6709\u5174\u8da3\u7684\u540c\u5b66\u53ef\u4ee5\u901a\u8fc7\u672c\u7bc7\u6587\u7ae0\u7684\u7406\u89e3\u7ee7\u7eed\u9605\u8bfb\u5b83\u7684\u6e90\u7801\u3002<\/p>\n
    \u4e0b\u4e00\u8282, \u7ee7\u7eed\u5e26\u5927\u5bb6\u8be6\u63a2\u8ba8ThreadPoolExecutor\u4e2d\u662f\u5982\u4f55\u8fdb\u884c\u7ebf\u7a0b\u590d\u7528<\/code><\/p>\n<\/section>\n
    \u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7: \u7a0b\u5e8f\u5458\u76ae\u5361\u79cb<\/p><\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"
    \u9762\u8bd5\u5b98: \u6709\u4e86\u89e3\u8fc7\u7ebf\u7a0b\u6c60\u7684\u5de5\u4f5c\u539f\u7406\u5417\uff1f\u8bf4\u8bf4\u770b \u524d\u8a00 \u76ee\u524d\u6b63\u5728\u51fa\u4e00\u4e2aJava\u591a\u7ebf\u7a0b\u4e13\u9898\u957f\u671f\u7cfb\u5217\u6559\u7a0b\uff0c\u4ece\u5165\u95e8\u5230\u8fdb\u9636\u542b\u6e90\u7801\u89e3\u8bfb, \u7bc7\u5e45\u4f1a …<\/p>\n","protected":false},"author":1,"featured_media":1324,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[2],"tags":[],"class_list":["post-1327","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528042059873-150x150.jpeg","content_first_image":null,"post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528042059873-300x128.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528042059873.jpeg","post_frist_image":null,"post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528042059873-300x128.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528042059873.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230528042059873.jpeg","post_all_images":[],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"Java","post_date":"2023-05-28","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":292,"next_post_id":1331,"next_post_title":"\u9762\u8bd5\u5b98: \u7ebf\u7a0b\u6c60\u662f\u5982\u4f55\u505a\u5230\u7ebf\u7a0b\u590d\u7528\u7684\uff1f\u6709\u4e86\u89e3\u8fc7\u5417\uff0c\u8bf4\u8bf4\u770b","previous_post_id":1323,"previous_post_title":"Java\u591a\u7ebf\u7a0b\u4e13\u9898\u4e4b\u7ebf\u7a0b\u6c60\u7684\u57fa\u672c\u4f7f\u7528","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1327","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1327"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/1327\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/1324"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1327"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1327"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1327"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}