{"id":202597,"date":"2025-05-22T11:05:44","date_gmt":"2025-05-22T03:05:44","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202597\/"},"modified":"2025-05-22T11:05:44","modified_gmt":"2025-05-22T03:05:44","slug":"java%e5%87%bd%e6%95%b0%e5%a4%9a%e7%ba%bf%e7%a8%8b%e5%a4%b1%e6%95%88%e7%9a%84%e4%bb%a3%e7%a0%81%e9%87%8d%e6%9e%84%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202597\/","title":{"rendered":"Java\u51fd\u6570\u591a\u7ebf\u7a0b\u5931\u6548\u7684\u4ee3\u7801\u91cd\u6784\u6307\u5357"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u51fd\u6570\u591a\u7ebf\u7a0b\u5931\u6548\u7684\u4ee3\u7801\u91cd\u6784\u6307\u5357<\/h1>\n<p>\u73cd\u60dc\u65f6\u95f4\uff0c\u52e4\u594b\u5b66\u4e60\uff01\u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u51fd\u6570\u591a\u7ebf\u7a0b\u5931\u6548\u7684\u4ee3\u7801\u91cd\u6784\u6307\u5357\u300b<\/span>\uff0c\u6b63\u6587\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u6216\u8005\u662f\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u6709\u7591\u95ee\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u6211\uff01\u540e\u9762\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u5185\u5bb9\u7684\uff0c\u5e0c\u671b\u90fd\u80fd\u5e2e\u5230\u6b63\u5728\u5b66\u4e60\u7684\u5927\u5bb6\uff01<\/p>\n<p>\u95ee\u9898\uff1a\u5982\u4f55\u89e3\u51b3 Java \u51fd\u6570\u7684\u591a\u7ebf\u7a0b\u5931\u6548\uff1f\u91cd\u6784\u6307\u5357\uff1a\u4f7f\u7528\u540c\u6b65\u5173\u952e\u5b57\uff08synchronized\uff09\u786e\u4fdd\u7279\u5b9a\u4ee3\u7801\u5757\u4ec5\u7531\u4e00\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\u3002\u4f7f\u7528\u539f\u5b50\u7c7b\uff08\u5982 AtomicInteger\uff09\u63d0\u4f9b\u7ebf\u7a0b\u5b89\u5168\u7684\u53d8\u91cf\u3002\u4f7f\u7528\u5e76\u53d1\u96c6\u5408\uff08\u5982 ConcurrentHashMap\uff09\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168\u7684\u6570\u636e\u8bbf\u95ee\u3002\u4f7f\u7528\u9694\u79bb\u6280\u672f\uff08\u5982\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\uff09\u521b\u5efa\u5171\u4eab\u6570\u636e\u7684\u9694\u79bb\u526f\u672c\u3002\u4f7f\u7528\u4e0d\u53ef\u53d8\u5bf9\u8c61\uff0c\u5b83\u4eec\u4e0d\u80fd\u5728\u521b\u5efa\u540e\u66f4\u6539\uff0c\u56e0\u6b64\u53ef\u4ee5\u5b89\u5168\u5730\u8de8\u7ebf\u7a0b\u5171\u4eab\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729921404671c817c2c8c6.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u591a\u7ebf\u7a0b\u5931\u6548\u7684\u4ee3\u7801\u91cd\u6784\u6307\u5357<\/strong><\/p>\n<p><strong>\u95ee\u9898\u63cf\u8ff0<\/strong><\/p>\n<p>\u5f53\u591a\u4e2a\u7ebf\u7a0b\u8bbf\u95ee\u5171\u4eab\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u5bfc\u81f4\u51fd\u6570\u884c\u4e3a\u4e0d\u4e00\u81f4\uff0c\u4ece\u800c\u5bfc\u81f4\u591a\u7ebf\u7a0b\u5931\u6548\u3002\u8fd9\u662f\u56e0\u4e3a\uff0cJava \u51fd\u6570\u901a\u5e38\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u4e0d\u80fd\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e2d\u540c\u65f6\u6267\u884c\u800c\u4e0d\u4f1a\u51fa\u73b0\u95ee\u9898\u3002<\/p>\n<p><strong>\u91cd\u6784\u6307\u5357<\/strong><\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u591a\u7ebf\u7a0b\u5931\u6548\uff0c\u9700\u8981\u5bf9\u4ee3\u7801\u8fdb\u884c\u91cd\u6784\uff0c\u4f7f\u5176\u7ebf\u7a0b\u5b89\u5168\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u91cd\u6784\u6280\u672f\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u540c\u6b65\u5173\u952e\u5b57<\/strong>\uff1a<code>synchronized<\/code> \u5173\u952e\u5b57\u53ef\u4ee5\u786e\u4fdd\u4e00\u6b21\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u6267\u884c\u7279\u5b9a\u7684\u4ee3\u7801\u5757\u3002\u8fd9\u53ef\u4ee5\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u8bbf\u95ee\u5171\u4eab\u6570\u636e\u3002<\/li>\n<li><strong>\u4f7f\u7528\u539f\u5b50\u7c7b<\/strong>\uff1a\u539f\u5b50\u7c7b\uff08\u5982 <code>AtomicInteger<\/code> \u548c <code>AtomicBoolean<\/code>\uff09\u63d0\u4f9b\u7ebf\u7a0b\u5b89\u5168\u7684\u53d8\u91cf\uff0c\u53ef\u4ee5\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e2d\u5b89\u5168\u4f7f\u7528\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5e76\u53d1\u96c6\u5408<\/strong>\uff1a<code>ConcurrentHashMap<\/code> \u548c <code>ConcurrentLinkedQueue<\/code> \u7b49\u5e76\u53d1\u96c6\u5408\u4e13\u4e3a\u591a\u7ebf\u7a0b\u73af\u5883\u800c\u8bbe\u8ba1\uff0c\u53ef\u786e\u4fdd\u7ebf\u7a0b\u5b89\u5168\u7684\u6570\u636e\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u4f7f\u7528\u9694\u79bb\u6280\u672f<\/strong>\uff1a\u9694\u79bb\u6280\u672f\uff08\u5982\u7ebf\u7a0b\u5c40\u90e8\u5b58\u50a8\u548c\u526f\u672c\uff09\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u521b\u5efa\u4e00\u4e2a\u5171\u4eab\u6570\u636e\u7684\u9694\u79bb\u526f\u672c\uff0c\u4ece\u800c\u9632\u6b62\u591a\u7ebf\u7a0b\u5931\u6548\u3002<\/li>\n<li><strong>\u4f7f\u7528\u4e0d\u53ef\u53d8\u5bf9\u8c61<\/strong>\uff1a\u4e0d\u53ef\u53d8\u5bf9\u8c61\u5728\u521b\u5efa\u540e\u4e0d\u80fd\u66f4\u6539\uff0c\u56e0\u6b64\u53ef\u4ee5\u5b89\u5168\u5730\u8de8\u7ebf\u7a0b\u5171\u4eab\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>public class SharedCounter {\n\n    private int count;\n\n    public synchronized void increment() {\n        count++;\n    }\n}<\/pre>\n<p>\u8fd9\u4e2a <code>SharedCounter<\/code> \u7c7b\u7ebf\u7a0b\u5b89\u5168\uff0c\u56e0\u4e3a\u5b83\u4f7f\u7528 <code>synchronized<\/code> \u5173\u952e\u5b57\u6765\u4fdd\u62a4 <code>increment<\/code> \u65b9\u6cd5\u3002\u8fd9\u610f\u5473\u7740\u4e00\u6b21\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u6267\u884c\u6b64\u65b9\u6cd5\uff0c\u4ece\u800c\u9632\u6b62\u591a\u4e2a\u7ebf\u7a0b\u540c\u65f6\u4fee\u6539 <code>count<\/code> \u53d8\u91cf\u3002<\/p>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>\u901a\u8fc7\u5e94\u7528\u8fd9\u4e9b\u91cd\u6784\u6280\u672f\uff0c\u53ef\u4ee5\u6d88\u9664\u591a\u7ebf\u7a0b\u5931\u6548\u9519\u8bef\uff0c\u786e\u4fdd\u4ee3\u7801\u5728\u5e76\u53d1\u7684 Java \u73af\u5883\u4e2d\u6b63\u5e38\u8fd0\u884c\u3002\u91cd\u8981\u7684\u662f\u8981\u9009\u62e9\u6700\u9002\u5408\u7279\u5b9a\u573a\u666f\u7684\u91cd\u6784\u6280\u672f\uff0c\u5e76\u8fdb\u884c\u5145\u5206\u7684\u6d4b\u8bd5\u4ee5\u9a8c\u8bc1\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/p>\n<p>\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aJava\u51fd\u6570\u591a\u7ebf\u7a0b\u5931\u6548\u7684\u4ee3\u7801\u91cd\u6784\u6307\u5357\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6587\u7ae0\u77e5\u8bc6\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u51fd\u6570\u591a\u7ebf\u7a0b\u5931\u6548\u7684\u4ee3\u7801\u91cd\u6784&#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-202597","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202597","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=202597"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202597\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}