{"id":202694,"date":"2025-05-22T11:33:08","date_gmt":"2025-05-22T03:33:08","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202694\/"},"modified":"2025-05-22T11:33:08","modified_gmt":"2025-05-22T03:33:08","slug":"%e4%bd%bf%e7%94%a8java-lambda%e8%a1%a8%e8%be%be%e5%bc%8f%e8%bf%9b%e8%a1%8c%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e7%9a%84%e4%bc%98%e5%8a%bf%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202694\/","title":{"rendered":"\u4f7f\u7528Java lambda\u8868\u8fbe\u5f0f\u8fdb\u884c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u4f7f\u7528Java lambda\u8868\u8fbe\u5f0f\u8fdb\u884c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u6587\u7ae0\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300a\u4f7f\u7528Java lambda\u8868\u8fbe\u5f0f\u8fdb\u884c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729932884671cae5459818.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java Lambda \u8868\u8fbe\u5f0f\uff1a\u51fd\u6570\u5f0f\u7f16\u7a0b\u4f18\u52bf<\/strong><\/p>\n<p>Java Lambda \u8868\u8fbe\u5f0f\u662f\u533f\u540d\u51fd\u6570\uff0c\u5141\u8bb8\u6211\u4eec\u5728\u4e0d\u521b\u5efa\u5355\u72ec\u7c7b\u7684\u60c5\u51b5\u4e0b\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u98ce\u683c\u3002\u4e0e\u4f20\u7edf\u65b9\u6cd5\u76f8\u6bd4\uff0cLambda \u8868\u8fbe\u5f0f\u5e26\u6765\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li><strong>\u4ee3\u7801\u7b80\u6d01\uff1a<\/strong>Lambda \u8868\u8fbe\u5f0f\u7b80\u5316\u4e86\u4ee3\u7801\uff0c\u51cf\u5c11\u4e86\u5197\u4f59\uff0c\u4f7f\u4ee3\u7801\u66f4\u5177\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<li><strong>\u533f\u540d\u51fd\u6570\uff1a<\/strong>Lambda \u8868\u8fbe\u5f0f\u5141\u8bb8\u5b9a\u4e49\u533f\u540d\u51fd\u6570\uff0c\u4fbf\u4e8e\u5c06\u51fd\u6570\u4f20\u9012\u7ed9\u5176\u4ed6\u65b9\u6cd5\u4f5c\u4e3a\u53c2\u6570\u3002<\/li>\n<li><strong>\u51fd\u6570\u5f0f\u63a5\u53e3\uff1a<\/strong>Java 8 \u5f15\u5165\u4e86\u51fd\u6570\u5f0f\u63a5\u53e3\uff0c\u8fd9\u662f\u4e00\u79cd\u4ec5\u5305\u542b\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5\u7684\u63a5\u53e3\u3002Lambda \u8868\u8fbe\u5f0f\u53ef\u4ee5\u5b9e\u73b0\u51fd\u6570\u5f0f\u63a5\u53e3\uff0c\u4ece\u800c\u66f4\u5bb9\u6613\u8868\u8fbe\u51fd\u6570\u5f0f\u7f16\u7a0b\u6982\u5ff5\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4e00\u4e2a\u9700\u8981\u5bf9\u5217\u8868\u4e2d\u7684\u5143\u7d20\u5e94\u7528\u7b5b\u9009\u5668\u548c\u6620\u5c04\u64cd\u4f5c\u7684\u573a\u666f\u3002\u4f20\u7edf\u4e0a\uff0c\u6211\u4eec\u9700\u8981\u7f16\u5199\u4e24\u4e2a\u5355\u72ec\u7684\u65b9\u6cd5\u6765\u5206\u522b\u6267\u884c\u8fd9\u4e9b\u64cd\u4f5c\u3002\u4f7f\u7528 Lambda \u8868\u8fbe\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u64cd\u4f5c\u7ed3\u5408\u5230\u5355\u4e2a\u7b80\u6d01\u7684\u8868\u8fbe\u4e2d\uff1a<\/p>\n<pre>List&lt;Integer&gt; numbers = Arrays.asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);\n\n\/\/ \u7b5b\u9009\u5668\uff1a\u4ec5\u4fdd\u7559\u5076\u6570\nList&lt;Integer&gt; evenNumbers = numbers.stream()\n    .filter(n -&gt; n % 2 == 0)\n    .collect(Collectors.toList());\n\n\/\/ \u6620\u5c04\uff1a\u5c06\u5076\u6570\u5e73\u65b9\nList&lt;Integer&gt; squaredEvenNumbers = evenNumbers.stream()\n    .map(n -&gt; n * n)\n    .collect(Collectors.toList());<\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>filter()<\/code> \u65b9\u6cd5\u4f7f\u7528 Lambda \u8868\u8fbe\u5f0f\u5e94\u7528\u7b5b\u9009\u5668\uff0c\u800c <code>map()<\/code> \u65b9\u6cd5\u4f7f\u7528 Lambda \u8868\u8fbe\u5f0f\u5e94\u7528\u6620\u5c04\u3002\u7ed3\u679c\u662f\u4e24\u4e2a\u7b80\u6d01\u3001\u9ad8\u6548\u7684\u64cd\u4f5c\uff0c\u4ea7\u751f\u6211\u4eec\u60f3\u8981\u7684\u5217\u8868\u53d8\u6362\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300a\u4f7f\u7528Java lambda\u8868\u8fbe\u5f0f\u8fdb\u884c\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4f18\u52bf\u662f\u4ec0\u4e48\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8ejava,\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528Java lambda\u8868\u8fbe\u5f0f&#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-202694","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202694","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=202694"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202694\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202694"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202694"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202694"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}