{"id":3663,"date":"2025-04-26T19:05:07","date_gmt":"2025-04-26T11:05:07","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3663"},"modified":"2025-04-26T19:05:07","modified_gmt":"2025-04-26T11:05:07","slug":"%e7%ba%bf%e7%a8%8b%e6%b1%a0%e5%a4%84%e7%90%86%e4%bb%bb%e5%8a%a1%e7%9a%84%e8%bf%87%e7%a8%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/04\/26\/%e7%ba%bf%e7%a8%8b%e6%b1%a0%e5%a4%84%e7%90%86%e4%bb%bb%e5%8a%a1%e7%9a%84%e8%bf%87%e7%a8%8b%ef%bc%9f\/","title":{"rendered":"\u7ebf\u7a0b\u6c60\u5904\u7406\u4efb\u52a1\u7684\u8fc7\u7a0b\uff1f"},"content":{"rendered":"\n<p>\u57fa\u4e8e JDK \u5b98\u65b9 ThreadPoolExecutor \u6e90\u7801\u884c\u4e3a\u603b\u7ed3\uff0c<strong>\u6807\u51c6\u7684\u7ebf\u7a0b\u6c60\u5904\u7406\u4efb\u52a1\u6d41\u7a0b<\/strong>\u5982\u4e0b\uff1a<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u80cc\u666f\uff08\u7ebf\u7a0b\u6c60\u4e3b\u8981\u7ec4\u6210\uff09<\/h2>\n\n\n\n<p>\u5728\u6267\u884c\u4efb\u52a1\u524d\uff0c\u7ebf\u7a0b\u6c60\u4e2d\u6709\u8fd9\u4e9b\u91cd\u8981\u7ec4\u4ef6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>corePoolSize<\/strong>\uff1a\u6838\u5fc3\u7ebf\u7a0b\u6570<\/li>\n\n\n\n<li><strong>maximumPoolSize<\/strong>\uff1a\u6700\u5927\u7ebf\u7a0b\u6570<\/li>\n\n\n\n<li><strong>workQueue<\/strong>\uff1a\u963b\u585e\u4efb\u52a1\u961f\u5217<\/li>\n\n\n\n<li><strong>threadFactory<\/strong>\uff1a\u7ebf\u7a0b\u5de5\u5382<\/li>\n\n\n\n<li><strong>handler\uff08RejectedExecutionHandler\uff09<\/strong>\uff1a\u62d2\u7edd\u7b56\u7565<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u4efb\u52a1\u63d0\u4ea4<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8c03\u7528 <code>executor.execute(Runnable task)<\/code> \u6216 <code>submit(Callable task)<\/code> \u63d0\u4ea4\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u5224\u65ad\u5f53\u524d\u8fd0\u884c\u7ebf\u7a0b\u6570\u91cf\uff08<code>workerCount<\/code>\uff09\u662f\u5426\u5c0f\u4e8e corePoolSize<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u5c0f\u4e8e corePoolSize\uff1a<\/h3>\n\n\n\n<p>\u2705 \u2794 <strong>\u76f4\u63a5\u521b\u5efa\u4e00\u4e2a\u65b0\u7ebf\u7a0b<\/strong>\u6765\u6267\u884c\u8fd9\u4e2a\u4efb\u52a1\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u901a\u8fc7 <code>threadFactory<\/code> \u521b\u5efa\u7ebf\u7a0b\u5e76\u542f\u52a8\u3002<\/li>\n\n\n\n<li>\u65b0\u7ebf\u7a0b\u5f00\u59cb\u5904\u7406\u63d0\u4ea4\u7684\u4efb\u52a1\u3002<\/li>\n<\/ul>\n\n\n\n<p>\uff08<strong>\u6ce8\u610f<\/strong>\uff1a\u8fd9\u4e2a\u65b0\u5efa\u7ebf\u7a0b\u5c5e\u4e8e<strong>\u6838\u5fc3\u7ebf\u7a0b<\/strong>\u3002\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u5927\u4e8e\u7b49\u4e8e corePoolSize\uff1a<\/h3>\n\n\n\n<p>\u23e9 \u8fdb\u5165\u4e0b\u4e00\u6b65\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u5c1d\u8bd5\u5c06\u4efb\u52a1\u52a0\u5165\u5de5\u4f5c\u961f\u5217\uff08workQueue.offer\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u961f\u5217\u672a\u6ee1\uff08offer \u6210\u529f\uff09\uff1a<\/h3>\n\n\n\n<p>\u2705 \u2794 <strong>\u628a\u4efb\u52a1\u653e\u8fdb\u7b49\u5f85\u961f\u5217<\/strong>\uff0c\u7b49\u5f85\u5df2\u6709\u7ebf\u7a0b\u6765\u5904\u7406\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6838\u5fc3\u7ebf\u7a0b\u4f1a\u4e0d\u65ad\u4ece\u961f\u5217\u4e2d\u53d6\u4efb\u52a1\u6267\u884c\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u961f\u5217\u5df2\u6ee1\uff08offer \u5931\u8d25\uff09\uff1a<\/h3>\n\n\n\n<p>\u23e9 \u8fdb\u5165\u4e0b\u4e00\u6b65\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u5224\u65ad\u5f53\u524d\u7ebf\u7a0b\u6570\uff08workerCount\uff09\u662f\u5426\u5c0f\u4e8e maximumPoolSize<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u5c0f\u4e8e maximumPoolSize\uff1a<\/h3>\n\n\n\n<p>\u2705 \u2794 <strong>\u518d\u521b\u5efa\u4e00\u4e2a\u65b0\u7ebf\u7a0b<\/strong>\u6765\u6267\u884c\u8fd9\u4e2a\u4efb\u52a1\u3002<\/p>\n\n\n\n<p>\uff08\u6ce8\u610f\uff1a<strong>\u8fd9\u4e2a\u65b0\u7ebf\u7a0b\u4e0d\u662f\u6838\u5fc3\u7ebf\u7a0b\uff0c\u662f\u6269\u5c55\u7ebf\u7a0b\uff08\u975e\u6838\u5fc3\u7ebf\u7a0b\uff09<\/strong>\u3002\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">\u5982\u679c\u7b49\u4e8e\u6216\u5927\u4e8e maximumPoolSize\uff1a<\/h3>\n\n\n\n<p>\u23e9 \u8fdb\u5165\u4e0b\u4e00\u6b65\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. \u6267\u884c\u62d2\u7edd\u7b56\u7565\uff08RejectedExecutionHandler\uff09<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5f53\u7ebf\u7a0b\u6570\u5df2\u5230\u4e0a\u9650\u3001\u961f\u5217\u4e5f\u6ee1\u4e86\uff0c\u5c31\u8c03\u7528\u62d2\u7edd\u7b56\u7565\u3002<\/li>\n\n\n\n<li>\u62d2\u7edd\u7b56\u7565\u53ef\u4ee5\u662f\uff1a<\/li>\n\n\n\n<li>\u629b\u5f02\u5e38\uff08\u9ed8\u8ba4\uff1aAbortPolicy\uff09<\/li>\n\n\n\n<li>\u7531\u63d0\u4ea4\u4efb\u52a1\u7684\u7ebf\u7a0b\u81ea\u5df1\u6267\u884c\uff08CallerRunsPolicy\uff09<\/li>\n\n\n\n<li>\u4e22\u5f03\u6700\u65b0\u4efb\u52a1\uff08DiscardPolicy\uff09<\/li>\n\n\n\n<li>\u4e22\u5f03\u6700\u8001\u4efb\u52a1\u5e76\u91cd\u8bd5\uff08DiscardOldestPolicy\uff09<\/li>\n<\/ul>\n\n\n\n<p>\uff08<strong>\u5c0f\u6280\u5de7\uff1a\u9762\u8bd5\u65f6\u52a0\u4e00\u53e5\uff0c\u4e00\u822c\u91cd\u8981\u4e1a\u52a1\u8fd8\u4f1a\u52a0\u65e5\u5fd7\u62a5\u8b66\uff01<\/strong>\uff09<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u4efb\u52a1\u6267\u884c<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6838\u5fc3\u7ebf\u7a0b\u6216\u6269\u5c55\u7ebf\u7a0b\u4ece\u961f\u5217\u4e2d\u4e0d\u65ad\u62c9\u53d6\u4efb\u52a1\u6267\u884c\uff08<code>Runnable.run()<\/code>\uff09\u3002<\/li>\n\n\n\n<li>\u4efb\u52a1\u6267\u884c\u5b8c\uff0c\u7ebf\u7a0b\u7ee7\u7eed\u53d6\u4e0b\u4e00\u4e2a\u4efb\u52a1\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u7ebf\u7a0b\u7a7a\u95f2\u8d85\u65f6\uff08\u8d85\u8fc7 keepAliveTime\uff09\uff0c\u4e14\u662f\u975e\u6838\u5fc3\u7ebf\u7a0b\uff0c\u5c31\u4f1a\u88ab\u56de\u6536\uff08\u9500\u6bc1\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u7ebf\u7a0b\u6c60\u4efb\u52a1\u5904\u7406\u8fc7\u7a0b\u603b\u7ed3\u7248<\/h2>\n\n\n\n<p>\u4e00\u5f20<strong>\u6807\u51c6\u6d41\u7a0b\u56fe<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u63d0\u4ea4\u4efb\u52a1\n    \u2193\n\u6838\u5fc3\u7ebf\u7a0b\u6570 &lt; corePoolSize\uff1f\n    \u662f \u2192 \u65b0\u5efa\u6838\u5fc3\u7ebf\u7a0b\u6267\u884c\n    \u5426 \u2192 \u5165\u961f\u5217\n             \u2193\n      \u961f\u5217\u6ee1\u4e86\uff1f\n           \u662f \u2192 \u5f53\u524d\u7ebf\u7a0b\u6570 &lt; maximumPoolSize\uff1f\n                    \u662f \u2192 \u521b\u5efa\u975e\u6838\u5fc3\u7ebf\u7a0b\u6267\u884c\n                    \u5426 \u2192 \u6267\u884c\u62d2\u7edd\u7b56\u7565\n           \u5426 \u2192 \u6392\u961f\u7b49\u5f85\u7ebf\u7a0b\u5904\u7406<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u5c0f\u6280\u5de7\uff1a\u9762\u8bd5\u65f6\u53ef\u4ee5\u518d\u52a0\u4e00\u53e5\u603b\u7ed3<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>&#8220;\u7ebf\u7a0b\u6c60\u672c\u8d28\u662f\u901a\u8fc7\u5408\u7406\u7684\u7ebf\u7a0b\u6570\u63a7\u5236\u548c\u4efb\u52a1\u6392\u961f\u673a\u5236\uff0c\u6700\u5927\u5316\u8d44\u6e90\u5229\u7528\u7387\uff0c\u9632\u6b62\u7cfb\u7edf\u8fc7\u8f7d\uff0c\u540c\u65f6\u4fdd\u8bc1\u4efb\u52a1\u5c3d\u53ef\u80fd\u5feb\u901f\u88ab\u5904\u7406\u3002&#8221;<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8e JDK \u5b98\u65b9 ThreadPoolExecutor \u6e90\u7801\u884c\u4e3a\u603b\u7ed3\uff0c\u6807\u51c6\u7684\u7ebf\u7a0b\u6c60\u5904\u7406\u4efb\u52a1\u6d41\u7a0b\u5982\u4e0b\uff1a 1.  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3664,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-3663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java-"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3663","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3663"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3663\/revisions"}],"predecessor-version":[{"id":3665,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3663\/revisions\/3665"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3664"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3663"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3663"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3663"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}