{"id":202880,"date":"2025-05-22T08:41:30","date_gmt":"2025-05-22T00:41:30","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202880\/"},"modified":"2025-05-22T08:41:30","modified_gmt":"2025-05-22T00:41:30","slug":"java%e5%87%bd%e6%95%b0%e5%bc%8f%e7%bc%96%e7%a8%8b%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8%e9%9b%86%e5%90%88%e6%a1%86%e6%9e%b6%e5%ae%9e%e7%8e%b0%e5%b9%b6%e8%a1%8c%e8%ae%a1%e7%ae%97%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202880\/","title":{"rendered":"Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f"},"content":{"rendered":"

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

Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u300b<\/span>\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u6587\u7ae0<\/span>\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u548c\u6d41\u5f0f API \u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff0c\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u521b\u5efa\u4e00\u4e2a\u96c6\u5408\u3002\u5c06\u96c6\u5408\u8f6c\u6362\u4e3a\u5e76\u884c\u6d41\u3002\u4f7f\u7528\u4e2d\u95f4\u64cd\u4f5c\u5904\u7406\u5143\u7d20\u3002\u4f7f\u7528\u7ec8\u6b62\u64cd\u4f5c\u5904\u7406\u7ed3\u679c\u3002\u8fd9\u79cd\u65b9\u6cd5\u63d0\u4f9b\u4e86\u5e76\u884c\u6027\u3001\u6613\u7528\u6027\u3001\u53ef\u6269\u5c55\u6027\u548c\u5229\u7528 JVM \u4f18\u5316\u7684\u4f18\u70b9\u3002<\/p>\n

<\/p>\n

Java \u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5b83\u5f3a\u8c03\u4e0d\u53ef\u53d8\u6027\u3001\u7eaf\u51fd\u6570\u548c\u9ad8\u9636\u51fd\u6570\u7684\u4f7f\u7528\u3002\u5728 Java \u4e2d\uff0clambda \u8868\u8fbe\u5f0f\u548c stream API \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u6765\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\u3002<\/p>\n

\u96c6\u5408\u6846\u67b6<\/strong><\/p>\n

Java \u96c6\u5408\u6846\u67b6\u63d0\u4f9b\u4e86\u5404\u79cd\u96c6\u5408\u7c7b\u578b\uff0c\u4f8b\u5982 List\u3001Set \u548c Map\u3002\u8fd9\u4e9b\u96c6\u5408\u53ef\u4ee5\u4f7f\u7528 Java 8 \u6dfb\u52a0\u7684\u6d41\u5f0f API \u6765\u8fdb\u884c\u5e76\u884c\u64cd\u4f5c\u3002<\/p>\n

\u6d41\u5f0f API<\/strong><\/p>\n

\u6d41\u5f0f API \u63d0\u4f9b\u4e86\u4e00\u7ec4\u65b9\u6cd5\u6765\u8868\u793a\u5e8f\u5217\u5143\u7d20\u3002\u6d41\u53ef\u4ee5\u4ece\u96c6\u5408\u521b\u5efa\uff0c\u5e76\u4f7f\u7528\u4e2d\u95f4\u64cd\u4f5c\uff08\u4f8b\u5982 filter()\u3001map()\uff09\u5bf9\u5176\u8fdb\u884c\u8f6c\u6362\u3002\u6d41\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7ec8\u6b62\u64cd\u4f5c\uff08\u4f8b\u5982 forEach()\uff09\u5bf9\u5143\u7d20\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

\u5e76\u884c\u6d41<\/strong><\/p>\n

\u6d41\u53ef\u4ee5\u4f7f\u7528 parallel() \u65b9\u6cd5\u8f6c\u6362\u4e3a\u5e76\u884c\u6d41\u3002\u5e76\u884c\u6d41\u901a\u8fc7\u5c06\u5143\u7d20\u7684\u5904\u7406\u62c6\u5206\u4e3a\u591a\u4e2a\u4efb\u52a1\u5e76\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e0a\u540c\u65f6\u6267\u884c\u5b83\u4eec\u6765\u5b9e\u73b0\u5e76\u884c\u6027\u3002<\/p>\n

\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

\u4ee5\u4e0b\u4ee3\u7801\u793a\u4f8b\u6f14\u793a\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u548c\u6d41\u5f0f API \u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1a<\/p>\n

import java.util.ArrayList;\nimport java.util.List;\n\npublic class ParallelStreamExample {\n\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u5b57\u7b26\u4e32\u5217\u8868\n        List<String> strings = new ArrayList<>();\n        strings.add(\"A\");\n        strings.add(\"B\");\n        strings.add(\"C\");\n        strings.add(\"D\");\n        strings.add(\"E\");\n\n        \/\/ \u4f7f\u7528\u5e76\u884c\u6d41\u8fc7\u6ee4\u5927\u4e8e 2 \u7684\u5b57\u7b26\u4e32\n        strings.parallelStream()\n                .filter(str -> str.length() > 2)\n                .forEach(System.out::println);\n    }\n}<\/pre>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4ece\u4e00\u4e2a\u5b57\u7b26\u4e32\u5217\u8868\u521b\u5efa\u4e86\u4e00\u4e2a\u5e76\u884c\u6d41\u3002\u6d41\u4f7f\u7528 filter() \u65b9\u6cd5\u8fc7\u6ee4\u5927\u4e8e 2 \u7684\u5b57\u7b26\u4e32\u3002\u6700\u540e\uff0c\u6d41\u4f7f\u7528 forEach() \u65b9\u6cd5\u5c06\u6bcf\u4e2a\u5143\u7d20\u6253\u5370\u5230\u63a7\u5236\u53f0\u3002<\/p>\n
\u4f18\u70b9<\/strong><\/p>\n
\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u548c\u6d41\u5f0f API \u8fdb\u884c\u5e76\u884c\u8ba1\u7b97\u5177\u6709\u4ee5\u4e0b\u4f18\u70b9\uff1a<\/p>\n
    \n
  • \u63d0\u9ad8\u5e76\u884c\u6027\uff0c\u7f29\u77ed\u8ba1\u7b97\u65f6\u95f4<\/li>\n
  • \u6613\u4e8e\u4f7f\u7528\uff0c\u53ea\u9700\u51e0\u884c\u4ee3\u7801\u5373\u53ef\u5b9e\u73b0\u5e76\u884c\u6027<\/li>\n
  • \u53ef\u6269\u5c55\u6027\u5f3a\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8f7b\u677e\u6dfb\u52a0\u66f4\u591a\u7ebf\u7a0b<\/li>\n
  • \u5229\u7528 Java \u865a\u62df\u673a (JVM) \u7684\u5185\u7f6e\u4f18\u5316<\/li>\n<\/ul>\n
    \u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aJava\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846\u67b6\u5b9e\u73b0\u5e76\u884c\u8ba1\u7b97\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    Java\u51fd\u6570\u5f0f\u7f16\u7a0b\u5982\u4f55\u4f7f\u7528\u96c6\u5408\u6846...<\/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-202880","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202880","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=202880"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202880\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202880"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}