{"id":202727,"date":"2025-05-22T11:10:43","date_gmt":"2025-05-22T03:10:43","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202727\/"},"modified":"2025-05-22T11:10:43","modified_gmt":"2025-05-22T03:10:43","slug":"java%e4%b8%adlambda%e8%a1%a8%e8%be%be%e5%bc%8f%e7%9a%84%e6%9c%aa%e6%9d%a5%e5%8f%91%e5%b1%95%e5%92%8c%e8%b6%8b%e5%8a%bf%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202727\/","title":{"rendered":"Java\u4e2dLambda\u8868\u8fbe\u5f0f\u7684\u672a\u6765\u53d1\u5c55\u548c\u8d8b\u52bf\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u4e2dLambda\u8868\u8fbe\u5f0f\u7684\u672a\u6765\u53d1\u5c55\u548c\u8d8b\u52bf\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u4e2dLambda\u8868\u8fbe\u5f0f\u7684\u672a\u6765\u53d1\u5c55\u548c\u8d8b\u52bf\u662f\u4ec0\u4e48\uff1f\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n<p>\u672a\u6765\u53d1\u5c55\uff1a\u5c40\u90e8\u53d8\u91cf\u6355\u83b7\u548c\u5bf9\u8c61\u65b9\u6cd5\u5f15\u7528\u7b49\u6539\u8fdb\u3002\u66f4\u5e7f\u6cdb\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b\u3001\u5e76\u884c\u7f16\u7a0b\u548c\u53cd\u5e94\u5f0f\u7f16\u7a0b\u7684\u96c6\u6210\u3002\u73b0\u72b6\u548c\u8d8b\u52bf\uff1alambda \u8868\u8fbe\u5f0f\u7b80\u5316\u4e86\u4ee3\u7801\uff0c\u63d0\u9ad8\u4e86\u7f16\u7a0b\u7075\u6d3b\u6027\u3002\u5728\u5e76\u884c\u7f16\u7a0b\u548c\u51fd\u6570\u5f0f\u7f16\u7a0b\u4e2d\u53d1\u6325\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5b9e\u6218\u6848\u4f8b\uff1a\u5e94\u7528 lambda \u8868\u8fbe\u5f0f\u8fdb\u884c\u5217\u8868\u8f6c\u6362\u3001\u5bf9\u8c61\u6392\u5e8f\u548c\u4e8b\u4ef6\u5904\u7406\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729937082671cbeba489d8.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u4e2d lambda \u8868\u8fbe\u5f0f\u7684\u672a\u6765\u53d1\u5c55\u548c\u8d8b\u52bf<\/strong><\/p>\n<p>Lambda \u8868\u8fbe\u5f0f\u51fa\u73b0\u5728 Java 8 \u4e2d\uff0c\u5f7b\u5e95\u6539\u53d8\u4e86 Java \u7f16\u7a0b\u65b9\u5f0f\u3002\u5b83\u4eec\u4e3a\u4ee3\u7801\u63d0\u4f9b\u4e86\u7b80\u6d01\u6027\u548c\u7075\u6d3b\u6027\uff0c\u5e76\u7b80\u5316\u4e86\u5e76\u884c\u7f16\u7a0b\u548c\u51fd\u6570\u5f0f\u7f16\u7a0b\u3002<\/p>\n<p><strong>\u672a\u6765\u53d1\u5c55<\/strong><\/p>\n<p>Java 10 \u548c\u66f4\u9ad8\u7248\u672c\u5f15\u5165\u4e86\u5bf9 lambda \u8868\u8fbe\u5f0f\u7684\u8fdb\u4e00\u6b65\u6539\u8fdb\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5c40\u90e8\u53d8\u91cf\u6355\u83b7\uff1a<\/strong>lambda \u8868\u8fbe\u5f0f\u73b0\u5728\u53ef\u4ee5\u6355\u83b7\u5c40\u90e8\u53d8\u91cf\uff0c\u8fd9\u63d0\u9ad8\u4e86\u7075\u6d3b\u6027\u5e76\u51cf\u5c11\u4e86\u4ee3\u7801\u5197\u4f59\u3002<\/li>\n<li><strong>\u5bf9\u8c61::\u65b9\u6cd5\u5f15\u7528\uff1a<\/strong>\u8fd9\u5141\u8bb8\u4ee5\u66f4\u7b80\u6d01\u7684\u65b9\u5f0f\u8c03\u7528\u5bf9\u8c61\u65b9\u6cd5\uff0c\u4ece\u800c\u63d0\u9ad8\u4e86\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/li>\n<\/ul>\n<p><strong>\u8d8b\u52bf<\/strong><\/p>\n<p>\u4ee5\u4e0b\u8d8b\u52bf\u53ef\u80fd\u4f1a\u5851\u9020 lambda \u8868\u8fbe\u5f0f\u5728 Java \u4e2d\u7684\u672a\u6765\uff1a<\/p>\n<ul>\n<li><strong>\u66f4\u5e7f\u6cdb\u7684\u51fd\u6570\u5f0f\u7f16\u7a0b\uff1a<\/strong>Java \u6b63\u5728\u62e5\u62b1\u51fd\u6570\u5f0f\u7f16\u7a0b\u8303\u4f8b\uff0clambda \u8868\u8fbe\u5f0f\u5728\u5176\u4e2d\u626e\u6f14\u7740\u81f3\u5173\u91cd\u8981\u7684\u89d2\u8272\u3002<\/li>\n<li><strong>\u5e76\u884c\u7f16\u7a0b\u7684\u6269\u5927\u4f7f\u7528\uff1a<\/strong>lambda \u8868\u8fbe\u5f0f\u7b80\u5316\u4e86\u5e76\u884c\u7f16\u7a0b\uff0c\u8fd9\u5c06\u5728\u9700\u8981\u66f4\u9ad8\u541e\u5410\u91cf\u548c\u66f4\u4f4e\u5ef6\u8fdf\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u53d8\u5f97\u8d8a\u6765\u8d8a\u666e\u904d\u3002<\/li>\n<li><strong>\u4e0e\u53cd\u5e94\u5f0f\u7f16\u7a0b\u7684\u96c6\u6210\uff1a<\/strong>lambda \u8868\u8fbe\u5f0f\u4e0e\u53cd\u5e94\u5f0f\u7f16\u7a0b\u6a21\u578b\u5f88\u597d\u5730\u96c6\u6210\uff0c\u8fd9\u5141\u8bb8\u521b\u5efa\u5bf9\u4e8b\u4ef6\u505a\u51fa\u53cd\u5e94\u7684\u5f02\u6b65\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6f14\u793a\u4e86 Java \u4e2d lambda \u8868\u8fbe\u5f0f\u7684\u4f7f\u7528\uff1a<\/p>\n<pre>\/\/ \u5bf9\u5217\u8868\u5e94\u7528 lambda \u8868\u8fbe\u5f0f\u8fdb\u884c\u8f6c\u6362\nList&lt;Integer&gt; numbers = Arrays.asList(1, 2, 3);\nList&lt;Integer&gt; squares = numbers.stream().map(x -&gt; x * x).toList();\n\n\/\/ \u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u5bf9\u5bf9\u8c61\u8fdb\u884c\u6392\u5e8f\nList&lt;Person&gt; people = Arrays.asList(\n    new Person(\"John\", 25),\n    new Person(\"Jane\", 22)\n);\npeople.sort((p1, p2) -&gt; p1.age - p2.age);\n\n\/\/ \u4f7f\u7528 lambda \u8868\u8fbe\u5f0f\u8fdb\u884c\u4e8b\u4ef6\u5904\u7406\nButton button = new Button();\nbutton.setOnAction(e -&gt; System.out.println(\"Button clicked!\"));<\/pre>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>Java \u4e2d\u7684 lambda \u8868\u8fbe\u5f0f\u4e0d\u65ad\u53d1\u5c55\u548c\u5b8c\u5584\uff0c\u5728\u672a\u6765\u5c06\u7ee7\u7eed\u662f\u4e00\u4e2a\u4e0d\u53ef\u6216\u7f3a\u7684\u7279\u6027\u3002\u5b83\u4eec\u4e3a\u4ee3\u7801\u63d0\u4f9b\u7b80\u6d01\u6027\u3001\u7075\u6d3b\u6027\u5e76\u652f\u6301\u591a\u79cd\u7f16\u7a0b\u8303\u4f8b\uff0c\u5c06\u7ee7\u7eed\u5851\u9020 Java \u7684\u672a\u6765\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aJava\u4e2dLambda\u8868\u8fbe\u5f0f\u7684\u672a\u6765\u53d1\u5c55\u548c\u8d8b\u52bf\u662f\u4ec0\u4e48\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u4e2dLambda\u8868\u8fbe\u5f0f\u7684\u672a&#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-202727","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202727","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=202727"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202727\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}