{"id":202928,"date":"2025-05-22T08:57:06","date_gmt":"2025-05-22T00:57:06","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202928\/"},"modified":"2025-05-22T08:57:06","modified_gmt":"2025-05-22T00:57:06","slug":"java%e6%96%b9%e6%b3%95%e7%9a%84%e8%ae%bf%e9%97%ae%e6%9d%83%e9%99%90%e5%92%8c%e4%bd%9c%e7%94%a8%e5%9f%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202928\/","title":{"rendered":"Java\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df<\/h1>\n<p><span style=\"font-size: 15px\">\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730000318671db5bec920e.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df\u662f\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u4eec\u63a7\u5236\u5bf9\u65b9\u6cd5\u7684\u53ef\u8bbf\u95ee\u6027\u548c\u53ef\u89c1\u6027\u3002<\/p>\n<p><strong>\u8bbf\u95ee\u6743\u9650<\/strong><\/p>\n<p>\u8bbf\u95ee\u6743\u9650\u6307\u5b9a\u53ef\u4ee5\u8bbf\u95ee\u65b9\u6cd5\u7684\u4ee3\u7801\u8303\u56f4\u3002Java \u4e2d\u6709\u56db\u79cd\u8bbf\u95ee\u6743\u9650\u7ea7\u522b\uff1a<\/p>\n<ul>\n<li><strong>public:<\/strong> \u8be5\u65b9\u6cd5\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u8bbf\u95ee\u3002<\/li>\n<li><strong>protected:<\/strong> \u8be5\u65b9\u6cd5\u53ef\u4ee5\u5728\u540c\u4e00\u4e2a\u5305\u4e2d\u6216\u5176\u5b50\u7c7b\u4e2d\u8bbf\u95ee\u3002<\/li>\n<li><strong>default (package-private):<\/strong> \u8be5\u65b9\u6cd5\u53ea\u80fd\u5728\u540c\u4e00\u4e2a\u5305\u4e2d\u8bbf\u95ee\u3002<\/li>\n<li><strong>private:<\/strong> \u8be5\u65b9\u6cd5\u53ea\u80fd\u5728\u5b9a\u4e49\u5b83\u7684\u7c7b\u4e2d\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<p><strong>\u4f5c\u7528\u57df<\/strong><\/p>\n<p>\u4f5c\u7528\u57df\u6307\u5b9a\u65b9\u6cd5\u7684\u53ef\u89c1\u6027\u3002Java \u4e2d\u6709\u4e24\u79cd\u4f5c\u7528\u57df\uff1a<\/p>\n<ul>\n<li><strong>\u7c7b\u4f5c\u7528\u57df:<\/strong> \u65b9\u6cd5\u5728\u6574\u4e2a\u7c7b\u4e2d\u53ef\u89c1\u3002<\/li>\n<li><strong>\u5c40\u90e8\u4f5c\u7528\u57df:<\/strong> \u65b9\u6cd5\u4ec5\u5728\u5b9a\u4e49\u5b83\u7684\u4ee3\u7801\u5757\uff08\u5982\u65b9\u6cd5\u6216\u5faa\u73af\uff09\u4e2d\u53ef\u89c1\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a <code>Person<\/code> \u7684\u7c7b\uff0c\u5b83\u6709\u4e00\u4e2a\u516c\u5171\u65b9\u6cd5 <code>getName()<\/code> \u548c\u4e00\u4e2a\u79c1\u6709\u65b9\u6cd5 <code>getAddress()<\/code>\uff1a<\/p>\n<pre>public class Person {\n    public String getName() {\n        return \"John Doe\";\n    }\n\n    private String getAddress() {\n        return \"123 Main Street\";\n    }\n}<\/pre>\n<ul>\n<li><code>getName()<\/code> \u65b9\u6cd5\u5177\u6709\u516c\u5171\u8bbf\u95ee\u6743\u9650\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u8bbf\u95ee\u3002<\/li>\n<li><code>getAddress()<\/code> \u65b9\u6cd5\u5177\u6709\u79c1\u6709\u8bbf\u95ee\u6743\u9650\uff0c\u56e0\u6b64\u53ea\u80fd\u5728 <code>Person<\/code> \u7c7b\u4e2d\u8bbf\u95ee\u3002<\/li>\n<\/ul>\n<p>\u5728\u4ee5\u4e0b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5b9e\u4f8b\u5316 <code>Person<\/code> \u5bf9\u8c61\u5e76\u8c03\u7528 <code>getName()<\/code> \u65b9\u6cd5\uff1a<\/p>\n<pre>Person person = new Person();\nString name = person.getName();<\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u7f16\u8bd1\u5e76\u8fd0\u884c\u6210\u529f\uff0c\u56e0\u4e3a <code>getName()<\/code> \u65b9\u6cd5\u662f\u516c\u5171\u7684\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u8bbf\u95ee\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u5c1d\u8bd5\u8c03\u7528 <code>getAddress()<\/code> \u65b9\u6cd5\uff1a<\/p>\n<pre>String address = person.getAddress();<\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u5c06\u7f16\u8bd1\u5931\u8d25\uff0c\u56e0\u4e3a <code>getAddress()<\/code> \u65b9\u6cd5\u662f\u79c1\u6709\u7684\uff0c\u53ea\u80fd\u5728 <code>Person<\/code> \u7c7b\u4e2d\u8bbf\u95ee\u3002<\/p>\n<p>\u901a\u8fc7\u7ed3\u5408\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df\u7684\u6982\u5ff5\uff0cJava \u7a0b\u5e8f\u5458\u53ef\u4ee5\u63a7\u5236\u5bf9\u4ee3\u7801\u7684\u53ef\u8bbf\u95ee\u6027\u548c\u53ef\u89c1\u6027\uff0c\u4ece\u800c\u63d0\u9ad8\u5b89\u5168\u6027\u3001\u6a21\u5757\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<p>\u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aJava\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df\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\u8bbf\u95ee\u6743\u9650,\u4f5c\u7528\u57df\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java\u65b9\u6cd5\u7684\u8bbf\u95ee\u6743\u9650\u548c\u4f5c\u7528\u57df &#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-202928","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202928","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=202928"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202928\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}