{"id":202630,"date":"2025-05-22T11:16:09","date_gmt":"2025-05-22T03:16:09","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202630\/"},"modified":"2025-05-22T11:16:09","modified_gmt":"2025-05-22T03:16:09","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e5%b9%b6%e8%a1%8c%e8%ae%a1%e7%ae%97%e7%9a%84%e7%a4%be%e5%8c%ba%e5%92%8c%e8%b5%84%e6%ba%90%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202630\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5e76\u884c\u8ba1\u7b97\u7684\u793e\u533a\u548c\u8d44\u6e90\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5e76\u884c\u8ba1\u7b97\u7684\u793e\u533a\u548c\u8d44\u6e90\uff1f<\/h1>\n<p>\u5c0f\u4f19\u4f34\u4eec\u5bf9\u6587\u7ae0\u7f16\u7a0b\u611f\u5174\u8da3\u5417\uff1f\u662f\u5426\u6b63\u5728\u5b66\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff1f\u5982\u679c\u662f\uff0c\u90a3\u4e48\u672c\u6587\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5e76\u884c\u8ba1\u7b97\u7684\u793e\u533a\u548c\u8d44\u6e90\uff1f\u300b\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff0c\u672c\u7bc7\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\u3002\u5728\u4e4b\u540e\u7684\u6587\u7ae0\u4e2d\u4e5f\u4f1a\u591a\u591a\u5206\u4eab\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u652f\u6301\u5e76\u884c\u8ba1\u7b97\uff0c\u5229\u7528 Lambda \u548c Streams \u5728\u591a\u4e2a\u6838\u5fc3\u4e0a\u5206\u914d\u5de5\u4f5c\u8d1f\u8f7d\u3002\u793e\u533a\u8d44\u6e90\u5305\u62ec Stack Overflow\u3001Java Champion \u793e\u533a\u548c Reddit r\/JavaProgramming\u3002Java \u5e76\u53d1 API\u3001JSR-166y \u548c Doug Lea \u7684\u300a\u5e76\u53d1 in Java\u300b\u63d0\u4f9b\u4e86\u5de5\u5177\u548c\u6307\u5bfc\u3002\u5728\u5b9e\u6218\u4e2d\uff0cJava Streams \u53ef\u4ee5\u5e76\u884c\u6267\u884c\u8ba1\u7b97\uff0c\u4f8b\u5982\u6c42\u548c\u5927\u6570\u636e\u96c6\uff0c\u63d0\u9ad8\u6548\u7387\u548c\u5229\u7528\u7387\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729925687671c923724ade.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u5e76\u884c\u8ba1\u7b97\uff1a\u793e\u533a\u548c\u8d44\u6e90<\/strong><\/p>\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u901a\u8fc7\u5f15\u5165\u51fd\u6570\u4f5c\u4e3a\u4e00\u7b49\u516c\u6c11\uff0c\u4e3a\u5e76\u884c\u8ba1\u7b97\u63d0\u4f9b\u4e86\u72ec\u7279\u7684\u80fd\u529b\u3002\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 Lambdas \u548c Streams \u5728\u591a\u4e2a\u6838\u5fc3\u4e0a\u6709\u6548\u5730\u5206\u914d\u5de5\u4f5c\u8d1f\u8f7d\u3002<\/p>\n<p><strong>\u793e\u533a\u652f\u6301<\/strong><\/p>\n<ul>\n<li><strong>Stack Overflow<\/strong>\uff1a\u4e00\u4e2a\u5e9e\u5927\u7684\u95ee\u7b54\u793e\u533a\uff0c\u53ef\u83b7\u53d6\u6709\u5173 Java \u5e76\u884c\u7f16\u7a0b\u7684\u5e2e\u52a9\u548c\u89c1\u89e3\u3002<\/li>\n<li><strong>Java Champion \u793e\u533a<\/strong>\uff1a\u4e00\u7fa4\u8d44\u6df1\u7684 Java \u5f00\u53d1\u4eba\u5458\uff0c\u81f4\u529b\u4e8e\u63a8\u5e7f\u6700\u4f73\u5b9e\u8df5\uff0c\u5305\u62ec\u5e76\u884c\u7f16\u7a0b\u3002<\/li>\n<li><strong>Reddit r\/JavaProgramming<\/strong>\uff1a\u4e00\u4e2a\u6d3b\u8dc3\u7684\u5b50\u8bba\u575b\uff0c\u8ba8\u8bba\u6709\u5173 Java \u7f16\u7a0b\u7684\u5404\u79cd\u4e3b\u9898\uff0c\u5305\u62ec\u5e76\u884c\u8ba1\u7b97\u3002<\/li>\n<\/ul>\n<p><strong>\u8d44\u6e90<\/strong><\/p>\n<ul>\n<li><strong>Java \u5e76\u53d1 API<\/strong>\uff1a\u63d0\u4f9b\u4e86\u7528\u4e8e\u7f16\u5199\u5e76\u53d1\u4ee3\u7801\u7684\u7c7b\u548c\u63a5\u53e3\uff0c\u4f8b\u5982 <code>ExecutorService<\/code> \u548c <code>Callable<\/code>\u3002<\/li>\n<li><strong>JSR-166y<\/strong>\uff1aJava \u6d41 API \u7684\u89c4\u8303\uff0c\u652f\u6301\u5e76\u884c\u5904\u7406\u6570\u636e\u6d41\u3002<\/li>\n<li><strong>\u300a\u5e76\u53d1 in Java\u300b\uff08Doug Lea \u6240\u8457\uff09<\/strong>\uff1a\u4e00\u672c\u7ecf\u5178\u8457\u4f5c\uff0c\u6df1\u5165\u63a2\u8ba8 Java \u4e2d\u7684\u5e76\u53d1\u6982\u5ff5\u548c\u6700\u4f73\u5b9e\u8df5\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4f7f\u7528 Java Streams \u5bf9\u5927\u6570\u636e\u96c6\u8fdb\u884c\u6c42\u548c\u3002\u4ee5\u4e0b\u4ee3\u7801\u4f7f\u7528\u5e76\u884c\u6d41\uff0c\u5728\u6240\u6709\u53ef\u7528\u7684\u5904\u7406\u5668\u6838\u5fc3\u4e0a\u5e76\u884c\u6267\u884c\u8ba1\u7b97\uff1a<\/p>\n<pre>Double sum = dataset.stream()\n    .parallel()\n    .map(value -&gt; expensiveComputation(value))\n    .reduce(0.0, Double::sum);<\/pre>\n<p>\u8fd9\u4e2a\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u8f7b\u677e\u5229\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u5c06\u8ba1\u7b97\u5206\u6563\u5230\u591a\u4e2a\u7ebf\u7a0b\uff0c\u4ece\u800c\u663e\u8457\u7f29\u77ed\u8ba1\u7b97\u65f6\u95f4\u3002<\/p>\n<p>\u901a\u8fc7\u5229\u7528 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5f3a\u5927\u529f\u80fd\u548c\u4e30\u5bcc\u7684\u793e\u533a\u652f\u6301\uff0c\u60a8\u53ef\u4ee5\u9ad8\u6548\u5730\u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\uff0c\u5e76\u6700\u5927\u5316\u673a\u5668\u7684\u8ba1\u7b97\u80fd\u529b\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u516c\u4f17\u53f7\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5e76\u884c\u8ba1\u7b97\u7684\u793e\u533a&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202630","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202630","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202630"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202630\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}