{"id":47306,"date":"2024-12-02T16:06:24","date_gmt":"2024-12-02T08:06:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47306\/"},"modified":"2024-12-02T16:06:24","modified_gmt":"2024-12-02T08:06:24","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e5%a6%82%e4%bd%95%e5%9c%a8%e5%8f%8d%e5%ba%94%e5%bc%8f%e7%bc%96%e7%a8%8b%e4%b8%8a%e4%b8%8b%e6%96%87%e4%b8%ad%e5%ae%9e%e7%8e%b0%e5%b9%b6%e8%a1%8c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47306\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f<\/h1>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u300b<\/span>\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1729993480671d9b08bdf1c.jpg\" class=\"aligncenter\" title=\"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u63d2\u56fe\" alt=\"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97<\/strong><\/p>\n<p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u8303\u5f0f\u4e3a\u5e76\u884c\u8ba1\u7b97\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\uff0c\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5e76\u884c\u6d41\u548c\u54cd\u5e94\u5f0f\u6d41\u6765\u5b9e\u73b0\u3002<\/p>\n<p><strong>\u5e76\u884c\u6d41<\/strong><\/p>\n<p>\u5e76\u884c\u6d41\u662f Java 8 \u4e2d\u5f15\u5165\u7684\u4e00\u4e2a\u5e76\u884c\u5904\u7406\u6846\u67b6\uff0c\u5141\u8bb8\u6211\u4eec\u4ee5\u5e76\u884c\u65b9\u5f0f\u5904\u7406\u6570\u636e\u96c6\u5408\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>parallel()<\/code> \u65b9\u6cd5\u5c06\u987a\u5e8f\u6d41\u8f6c\u6362\u4e3a\u5e76\u884c\u6d41\uff1a<\/p>\n<pre>List&lt;Integer&gt; numbers = List.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);\nnumbers.parallelStream()\n    .forEach(System.out::println);<\/pre>\n<p>\u8fd9\u5c06\u5728\u591a\u4e2a\u5904\u7406\u5668\u5185\u6838\u4e0a\u5e76\u884c\u6253\u5370\u6570\u5b57\u3002<\/p>\n<p><strong>\u54cd\u5e94\u5f0f\u6d41<\/strong><\/p>\n<p>\u54cd\u5e94\u5f0f\u6d41\u662f\u4e00\u4e2a\u5f02\u6b65\u6570\u636e\u5904\u7406\u6846\u67b6\uff0c\u5b83\u4e3a\u5904\u7406\u53ef\u65e0\u9650\u6d41\u5f0f\u4f20\u8f93\u7684\u6570\u636e\u63d0\u4f9b\u4e86\u6807\u51c6\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u54cd\u5e94\u5f0f\u6d41\u5e93\u5b9e\u73b0\u57fa\u4e8e\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b\u7684\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u5927\u91cf\u6570\u5b57\u7684\u6587\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u8ba1\u7b97\u8fd9\u4e9b\u6570\u5b57\u7684\u603b\u548c\u3002\u4f7f\u7528 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u548c\u53cd\u5e94\u5f0f\u7f16\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5e76\u884c\u6267\u884c\u6b64\u4efb\u52a1\uff1a<\/p>\n<pre>Flux&lt;Integer&gt; numbers = Flux.fromIterable(fileReader.readNumbers());\nMono&lt;Integer&gt; total = numbers.parallel()\n    .reduce(0, Integer::sum);<\/pre>\n<p>\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c<code>numbers<\/code> \u662f\u4e00\u4e2a\u54cd\u5e94\u5f0f\u6d41\uff0c\u5b83\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u5b57\u5e76\u5c06\u5176\u4f5c\u4e3a\u4e8b\u4ef6\u53d1\u51fa\u3002<code>parallel()<\/code> \u8fd0\u7b97\u7b26\u5c06\u6d41\u8f6c\u6362\u4e3a\u5e76\u884c\u6d41\uff0c\u5141\u8bb8\u5e76\u884c\u8ba1\u7b97\u6bcf\u4e2a\u6570\u5b57\u3002<code>reduce()<\/code> \u8fd0\u7b97\u7b26\u5c06\u6d41\u7684\u5143\u7d20\u7d2f\u79ef\u5230\u4e00\u4e2a\u6700\u7ec8\u7ed3\u679c\u4e2d\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u662f\u6570\u5b57\u7684\u603b\u548c\u3002<\/p>\n<p>\u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 <code>subscribe()<\/code> \u65b9\u6cd5\u5904\u7406\u54cd\u5e94\u5f0f\u6d41\u7ed3\u679c\uff1a<\/p>\n<pre>total.subscribe(result -&gt; System.out.println(\"Total: \" + result));<\/pre>\n<p>\u8fd9\u5c06\u6253\u5370\u6570\u5b57\u603b\u548c\u3002<\/p>\n<p>\u6587\u4e2d\u5173\u4e8e\u53cd\u5e94\u5f0f\u7f16\u7a0b\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f \u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u300b\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9\u6587\u7ae0\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60\u6587\u7ae0\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97 \u51fd\u6570\u5f0f\u7f16\u7a0b\u8303\u5f0f\u4e3a\u5e76\u884c\u8ba1\u7b97\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u5728\u53cd\u5e94\u5f0f\u7f16\u7a0b\u4e0a\u4e0b\u6587\u4e2d\uff0c\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u5e76\u884c\u6d41\u548c\u54cd\u5e94\u5f0f\u6d41\u6765\u5b9e\u73b0\u3002 \u5e76\u884c\u6d41 \u5e76\u884c\u6d41\u662f Java 8 \u4e2d\u5f15\u5165\u7684\u4e00\u4e2a\u5e76\u884c\u5904\u7406\u6846\u67b6\uff0c\u5141\u8bb8\u6211\u4eec\u4ee5\u5e76\u884c\u65b9\u5f0f\u5904\u7406\u6570\u636e\u96c6\u5408\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 parallel() \u65b9\u6cd5\u5c06\u987a\u5e8f\u6d41\u8f6c\u6362\u4e3a\u5e76\u884c\u6d41\uff1a List&lt;Integer&gt; numbers = List.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10); numbers.parallelStream() .forEach(System.out::println); \u8fd9\u5c06\u5728\u591a\u4e2a\u5904\u7406\u5668\u5185\u6838\u4e0a\u5e76\u884c\u6253\u5370\u6570\u5b57\u3002 \u54cd\u5e94\u5f0f\u6d41 \u54cd\u5e94\u5f0f\u6d41\u662f\u4e00\u4e2a\u5f02\u6b65\u6570\u636e\u5904\u7406\u6846\u67b6\uff0c\u5b83\u4e3a\u5904\u7406\u53ef\u65e0\u9650\u6d41\u5f0f\u4f20\u8f93\u7684\u6570\u636e\u63d0\u4f9b\u4e86\u6807\u51c6\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u54cd\u5e94\u5f0f\u6d41\u5e93\u5b9e\u73b0\u57fa\u4e8e\u4e8b\u4ef6\u9a71\u52a8\u6a21\u578b\u7684\u5e76\u884c\u8ba1\u7b97\u3002 \u5b9e\u6218\u6848\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b\u5927\u91cf\u6570\u5b57\u7684\u6587\u4ef6\uff0c\u6211\u4eec\u9700\u8981\u8ba1\u7b97\u8fd9\u4e9b\u6570\u5b57\u7684\u603b\u548c\u3002\u4f7f\u7528 Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u548c\u53cd\u5e94\u5f0f\u7f16\u7a0b\uff0c\u6211\u4eec\u53ef\u4ee5\u5e76\u884c\u6267\u884c\u6b64\u4efb\u52a1\uff1a Flux&lt;Integer&gt; numbers = Flux.fromIterable(fileReader.readNumbers()); Mono&lt;Integer&gt; total = numbers.parallel() .reduce(0, Integer::sum); \u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0cnumbers \u662f\u4e00\u4e2a\u54cd\u5e94\u5f0f\u6d41\uff0c\u5b83\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u5b57\u5e76\u5c06\u5176\u4f5c\u4e3a\u4e8b\u4ef6\u53d1\u51fa\u3002parallel() \u8fd0\u7b97\u7b26\u5c06\u6d41\u8f6c\u6362\u4e3a\u5e76\u884c\u6d41\uff0c\u5141\u8bb8\u5e76\u884c\u8ba1\u7b97\u6bcf\u4e2a\u6570\u5b57\u3002reduce() \u8fd0\u7b97\u7b26\u5c06\u6d41\u7684\u5143\u7d20\u7d2f\u79ef\u5230\u4e00\u4e2a\u6700\u7ec8\u7ed3\u679c\u4e2d\uff0c\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u5b83\u662f\u6570\u5b57\u7684\u603b\u548c\u3002 \u7136\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 subscribe() \u65b9\u6cd5\u5904\u7406\u54cd\u5e94\u5f0f\u6d41\u7ed3\u679c\uff1a total.subscribe(result -&gt; System.out.println(&#8220;Total: &#8221; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-47306","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47306","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=47306"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47306\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}