{"id":203178,"date":"2025-05-22T08:34:53","date_gmt":"2025-05-22T00:34:53","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203178\/"},"modified":"2025-05-22T08:34:53","modified_gmt":"2025-05-22T00:34:53","slug":"java-%e5%a4%9a%e7%ba%bf%e7%a8%8b%e5%90%8c%e6%ad%a5%e4%b9%8b%e8%b0%9c%ef%bc%9a%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e5%85%b1%e4%ba%ab%e5%8f%98%e9%87%8f-lt_num2-%e7%9a%84%e7%ab%9e%e4%ba%89%e6%9d%a1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203178\/","title":{"rendered":"Java \u591a\u7ebf\u7a0b\u540c\u6b65\u4e4b\u8c1c\uff1a\u5982\u4f55\u907f\u514d\u5171\u4eab\u53d8\u91cf lt_num2 \u7684\u7ade\u4e89\u6761\u4ef6\uff1f"},"content":{"rendered":"

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

Java \u591a\u7ebf\u7a0b\u540c\u6b65\u4e4b\u8c1c\uff1a\u5982\u4f55\u907f\u514d\u5171\u4eab\u53d8\u91cf lt_num2 \u7684\u7ade\u4e89\u6761\u4ef6\uff1f<\/h1>\n

\u600e\u4e48\u5165\u95e8\u6587\u7ae0\u7f16\u7a0b\uff1f\u9700\u8981\u5b66\u4e60\u54ea\u4e9b\u77e5\u8bc6\u70b9\uff1f\u8fd9\u662f\u65b0\u624b\u4eec\u521a\u63a5\u89e6\u7f16\u7a0b\u65f6\u5e38\u89c1\u7684\u95ee\u9898\uff1b\u4e0b\u9762\u5c31\u6765\u7ed9\u5927\u5bb6\u6574\u7406\u5206\u4eab\u4e00\u4e9b\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u80fd\u591f\u7ed9\u521d\u5b66\u8005\u4e00\u4e9b\u5e2e\u52a9\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u4ecb\u7ecd\u300aJava \u591a\u7ebf\u7a0b\u540c\u6b65\u4e4b\u8c1c\uff1a\u5982\u4f55\u907f\u514d\u5171\u4eab\u53d8\u91cf lt_num2 \u7684\u7ade\u4e89\u6761\u4ef6\uff1f\u300b\uff0c\u6d89\u53ca\u5230\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u6536\u85cf\u4e00\u4e0b<\/p>\n

<\/p>\n

java \u591a\u7ebf\u7a0b\u540c\u6b65\u7591\u95ee\u8fdb\u9636<\/strong><\/p>\n

\u60a8\u9047\u5230\u7684\u591a\u7ebf\u7a0b\u95ee\u9898\u6e90\u4e8e\u5bf9\u5171\u4eab\u53d8\u91cf lt_num2 \u7f3a\u4e4f\u540c\u6b65\u3002<\/p>\n

\u5728\u60a8\u7684\u4ee3\u7801\u4e2d\uff0cnum() \u65b9\u6cd5\u662f\u5206\u914d\u7ed9\u591a\u7ebf\u7a0b\u5904\u7406\u7684\u4e1a\u52a1\u903b\u8f91\u3002\u5728 main \u65b9\u6cd5\u4e2d\uff0c\u60a8\u5728\u5faa\u73af\u4e2d\u8c03\u7528 num() \u65b9\u6cd5\u65f6\u6f0f\u6389\u4e86\u5bf9 lt_num2 \u7684\u540c\u6b65\u3002<\/p>\n

\u5f53\u7b2c\u4e00\u4e2a\u7ebf\u7a0b\u8c03\u7528 num(lt_num2) \u65f6\uff0c\u5b83\u53ef\u80fd\u4f1a\u53d1\u73b0 lt_num2 \u5df2\u88ab\u5176\u4ed6\u7ebf\u7a0b\u589e\u52a0\u3002\u4f8b\u5982\uff0c\u5728 lt_num2=i \u4e4b\u524d\u52a0\u9501\uff0c\u53ef\u4ee5\u9632\u6b62\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9e\u73b0\u540c\u6b65\u7684\uff1a<\/p>\n

public class ThreadExample {\n\n    \/\/ \u4f7f\u7528 ReentrantLock \u9501\u673a\u5236\n    private static ReentrantLock lock = new ReentrantLock();\n\n    public static void main(String[] args) {\n        int lt_num2 = 1;\n\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u6c60\uff0c\u7ebf\u7a0b\u6570\u4e0e\u60a8\u8981\u5904\u7406\u7684\u4e1a\u52a1\u903b\u8f91\u6570\u91cf\u76f8\u540c\n        ExecutorService executorService = Executors.newFixedThreadPool(20);\n\n        \/\/ \u904d\u5386\u9700\u8981\u5904\u7406\u7684\u4e1a\u52a1\u903b\u8f91\n        for (int i = 1; i <= 20; i++) {\n            executorService.submit(() -> {\n                lock.lock();\n                try {\n                    \/\/ \u540c\u6b65\u4ee3\u7801\u5757\n                    num(lt_num2);\n                    lt_num2++;\n                } finally {\n                    lock.unlock();\n                }\n            });\n        }\n\n        executorService.shutdown();\n        executorService.awaitTermination(1, TimeUnit.MINUTES);\n    }\n\n    private static void num(int num) {\n        \/\/ \u4e1a\u52a1\u5904\u7406\u903b\u8f91\n        System.out.println(\"\u5f53\u524d\u5904\u7406\u6570\u5b57\uff1a\" + num);\n    }\n}<\/pre>\n
\u901a\u8fc7\u5728 lt_num2=i \u4e4b\u524d\u52a0\u9501\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u5728 lt_num2 \u503c\u88ab\u589e\u52a0\u4e4b\u524d\uff0c\u53ea\u6709\u5355\u4e2a\u7ebf\u7a0b\u80fd\u8bbf\u95ee\u5b83\u3002\u8fd9\u5c06\u4fdd\u8bc1\u60a8\u7684\u4e1a\u52a1\u903b\u8f91\u6309\u987a\u5e8f\u5904\u7406\uff0c\u5e76\u4e14\u4e0d\u4f1a\u51fa\u73b0\u91cd\u590d\u3002<\/p>\n
\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aJava \u591a\u7ebf\u7a0b\u540c\u6b65\u4e4b\u8c1c\uff1a\u5982\u4f55\u907f\u514d\u5171\u4eab\u53d8\u91cf lt_num2 \u7684\u7ade\u4e89\u6761\u4ef6\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Java \u591a\u7ebf\u7a0b\u540c\u6b65\u4e4b\u8c1c\uff1a\u5982\u4f55\u907f...<\/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-203178","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203178","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=203178"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203178\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}