{"id":202563,"date":"2025-05-22T10:06:07","date_gmt":"2025-05-22T02:06:07","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202563\/"},"modified":"2025-05-22T10:06:07","modified_gmt":"2025-05-22T02:06:07","slug":"java-%e4%b8%ad%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e7%9a%84%e5%b1%80%e9%99%90%e6%80%a7%e5%8f%8a%e9%80%82%e7%94%a8%e5%9c%ba%e6%99%af","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202563\/","title":{"rendered":"Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5c40\u9650\u6027\u53ca\u9002\u7528\u573a\u666f"},"content":{"rendered":"

<\/b> <\/p>\n

Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5c40\u9650\u6027\u53ca\u9002\u7528\u573a\u666f<\/h1>\n

\u5bf9\u4e8e\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u8005\u6765\u8bf4\uff0c\u7262\u56fa\u624e\u5b9e\u7684\u57fa\u7840\u662f\u5341\u5206\u91cd\u8981\u7684\uff0c\u5c31\u6765\u5e26\u5927\u5bb6\u4e00\u70b9\u70b9\u7684\u638c\u63e1\u57fa\u7840\u77e5\u8bc6\u70b9\u3002\u4eca\u5929\u672c\u7bc7\u6587\u7ae0\u5e26\u5927\u5bb6\u4e86\u89e3\u300aJava \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5c40\u9650\u6027\u53ca\u9002\u7528\u573a\u666f\u300b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e86\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u5feb\u70b9\u6536\u85cf\u8d77\u6765\u5427\uff0c\u5426\u5219\u9700\u8981\u65f6\u5c31\u627e\u4e0d\u5230\u4e86\uff01<\/p>\n

Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u6709\u5c40\u9650\u6027\uff0c\u5305\u62ec\u6027\u80fd\u5f00\u9500\u3001\u4ee3\u7801\u53ef\u8bfb\u6027\u548c\u7f3a\u4e4f\u53ef\u53d8\u6027\u3002\u7136\u800c\uff0c\u5b83\u4e5f\u5f88\u6709\u7528\uff0c\u7279\u522b\u662f\u5728\u5e76\u884c\u6027\u3001\u6570\u636e\u8f6c\u6362\u548c\u72b6\u6001\u7ba1\u7406\u65b9\u9762\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Stream API\u53ef\u4ee5\u7b80\u5316\u5e76\u884c\u64cd\u4f5c\uff0c\u5982\u5c06\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u52a0\u500d\u3002<\/p>\n

<\/p>\n

Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5c40\u9650\u6027\u548c\u9002\u7528\u573a\u666f<\/h2>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5b83\u5f3a\u8c03\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\u3002\u5c3d\u7ba1\u5728 Java \u4e2d\u91c7\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u53ef\u4ee5\u5e26\u6765\u8bb8\u591a\u597d\u5904\uff0c\u4f46\u5b83\u4e5f\u6709\u4e00\u4e9b\u5c40\u9650\u6027\uff0c\u9700\u8981\u8003\u8651\u5176\u9002\u7528\u573a\u666f\u3002<\/p>\n

\u5c40\u9650\u6027<\/h3>\n

1. \u6027\u80fd\u5f00\u9500<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u901a\u5e38\u9700\u8981\u5f15\u5165\u989d\u5916\u7684\u5bf9\u8c61\u548c\u5783\u573e\u6536\u96c6\u5f00\u9500\uff0c\u8fd9\u53ef\u80fd\u5bf9\u6027\u80fd\u4ea7\u751f\u8d1f\u9762\u5f71\u54cd\u3002<\/p>\n

2. \u4ee3\u7801\u53ef\u8bfb\u6027<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u7684\u4ee3\u7801\u53ef\u80fd\u6bd4\u4f7f\u7528\u547d\u4ee4\u5f0f\u7f16\u7a0b\u66f4\u96be\u7406\u89e3\u548c\u8c03\u8bd5\uff0c\u5c24\u5176\u5bf9\u4e8e\u4e0d\u719f\u6089\u51fd\u6570\u5f0f\u6982\u5ff5\u7684\u5f00\u53d1\u4eba\u5458\u6765\u8bf4\u3002<\/p>\n

3. \u7f3a\u4e4f\u53ef\u53d8\u6027<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u9650\u5236\u4f7f\u7528\u53ef\u53d8\u6570\u636e\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u96be\u4ee5\u5b9e\u73b0\u67d0\u4e9b\u64cd\u4f5c\u3002<\/p>\n

\u9002\u7528\u573a\u666f<\/h3>\n

\u5c3d\u7ba1\u5b58\u5728\u8fd9\u4e9b\u5c40\u9650\u6027\uff0c\u51fd\u6570\u5f0f\u7f16\u7a0b\u5728\u67d0\u4e9b\u573a\u666f\u4e2d\u4ecd\u7136\u975e\u5e38\u6709\u7528\uff1a<\/p>\n

1. \u5e76\u884c\u6027\u548c\u5e76\u53d1\u6027<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u9f13\u52b1\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\uff0c\u8fd9\u4f7f\u5176\u975e\u5e38\u9002\u5408\u5e76\u884c\u548c\u5e76\u53d1\u73af\u5883\u3002<\/p>\n

2. \u6570\u636e\u8f6c\u6362<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5de5\u5177\uff08\u5982 map\u3001filter \u548c reduce\uff09\u6765\u8f7b\u677e\u8f6c\u6362\u548c\u64cd\u4f5c\u6570\u636e\u3002<\/p>\n

3. \u72b6\u6001\u7ba1\u7406<\/strong><\/p>\n

\u4f7f\u7528\u4e0d\u53ef\u53d8\u6570\u636e\u548c\u7eaf\u51fd\u6570\u53ef\u4ee5\u4f7f\u72b6\u6001\u7ba1\u7406\u66f4\u52a0\u5bb9\u6613\u548c\u53ef\u9884\u6d4b\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b<\/h3>\n

\u793a\u4f8b\uff1a\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u7b80\u5316\u5e76\u884c\u64cd\u4f5c<\/strong><\/p>\n

List<Integer> numbers = Arrays.asList(1, 2, 3, 4, 5);\n\nList<Integer> doubledNumbers = numbers.parallelStream()\n                                     .map(x -> x * 2)\n                                     .collect(Collectors.toList());\n\nSystem.out.println(doubledNumbers); \/\/ [2, 4, 6, 8, 10]<\/pre>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cparallelStream<\/code> \u65b9\u6cd5\u5229\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u5bf9\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u5e94\u7528 x -> x * 2<\/code> \u51fd\u6570\uff0c\u5e76\u751f\u6210\u4e00\u4e2a\u65b0\u5217\u8868\u3002\u8fd9\u6bd4\u4f7f\u7528\u4f20\u7edf\u7684 for \u5faa\u73af\u548c\u53ef\u53d8\u5217\u8868\u8981\u9ad8\u6548\u5f97\u591a\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300aJava \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5c40\u9650\u6027\u53ca\u9002\u7528\u573a\u666f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8ejava,\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u4e2d\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u5c40\u9650\u6027\u53ca...<\/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-202563","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202563","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=202563"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202563\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202563"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}