{"id":202729,"date":"2025-05-22T09:03:46","date_gmt":"2025-05-22T01:03:46","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202729\/"},"modified":"2025-05-22T09:03:46","modified_gmt":"2025-05-22T01:03:46","slug":"java-%e5%87%bd%e6%95%b0%e8%ae%bf%e9%97%ae%e6%9d%83%e9%99%90%e6%8e%a7%e5%88%b6%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202729\/","title":{"rendered":"Java \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u6700\u4f73\u5b9e\u8df5\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u6700\u4f73\u5b9e\u8df5\uff1f<\/h1>\n<p>\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u8981\u52aa\u529b\uff0c\u4f46\u662f\u4e0d\u8981\u6025\uff01\u4eca\u5929\u7684\u8fd9\u7bc7\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aJava \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u300b<\/span>\u5c06\u4f1a\u4ecb\u7ecd\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u60f3\u6df1\u5165\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u53ef\u4ee5\u5173\u6ce8\u6211\uff01\u6211\u4f1a\u6301\u7eed\u66f4\u65b0\u76f8\u5173\u6587\u7ae0\u7684\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u80fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n<p>Java \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u6700\u4f73\u5b9e\u8df5\uff1a\u4f7f\u7528\u6700\u4e25\u683c\u7684\u6743\u9650\u9650\u5236\u8bbf\u95ee\u3002\u4ec5\u5728\u9700\u8981\u65f6\u653e\u5bbd\u6743\u9650\u3002\u907f\u514d\u4f7f\u7528 public\u3002\u4f7f\u7528\u63a5\u53e3\u548c\u62bd\u8c61\u7c7b\u8fdb\u884c\u62bd\u8c61\u3002\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u9a8c\u8bc1\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729937142671cbef6c782b.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<p>\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u5bf9\u4e8e\u4fdd\u62a4\u5e94\u7528\u7a0b\u5e8f\u514d\u53d7\u672a\u7ecf\u6388\u6743\u8bbf\u95ee\u81f3\u5173\u91cd\u8981\u3002\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u8bbf\u95ee\u6743\u9650\u4fee\u9970\u7b26\u6765\u63a7\u5236\u51fd\u6570\u7684\u53ef\u89c1\u6027\u3002<\/p>\n<p><strong>\u8bbf\u95ee\u6743\u9650\u4fee\u9970\u7b26<\/strong><\/p>\n<ul>\n<li><strong>public\uff1a<\/strong> \u51fd\u6570\u5bf9\u6240\u6709\u7c7b\u53ef\u89c1\u3002<\/li>\n<li><strong>protected\uff1a<\/strong> \u51fd\u6570\u5bf9\u540c\u4e00\u5305\u4e2d\u7684\u6240\u6709\u7c7b\u548c\u6d3e\u751f\u7c7b\u53ef\u89c1\u3002<\/li>\n<li><strong>default\uff08\u5305\u79c1\u6709\uff09\uff1a<\/strong> \u51fd\u6570\u4ec5\u5bf9\u540c\u4e00\u5305\u4e2d\u7684\u7c7b\u53ef\u89c1\u3002<\/li>\n<li><strong>private\uff1a<\/strong> \u51fd\u6570\u4ec5\u5bf9\u5b9a\u4e49\u5b83\u7684\u7c7b\u53ef\u89c1\u3002<\/li>\n<\/ul>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<ul>\n<li><strong>\u4f7f\u7528\u6700\u4e25\u683c\u7684\u6743\u9650\uff1a<\/strong> \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u6700\u4e25\u683c\u7684\u6743\u9650\u6765\u9650\u5236\u5bf9\u51fd\u6570\u7684\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u53ea\u6709\u5728\u9700\u8981\u65f6\u624d\u653e\u5bbd\u6743\u9650\uff1a<\/strong> \u5f53\u4e00\u4e2a\u51fd\u6570\u9700\u8981\u88ab\u53e6\u4e00\u4e2a\u7c7b\uff08\u5305\u5916\uff09\u8bbf\u95ee\u65f6\uff0c\u624d\u5c06\u5176\u6743\u9650\u653e\u5bbd\u5230 protected\u3002<\/li>\n<li><strong>\u907f\u514d\u4f7f\u7528 public\uff1a<\/strong> \u5c3d\u91cf\u907f\u514d\u4f7f\u7528 public \u8bbf\u95ee\u6743\u9650\uff0c\u56e0\u4e3a\u8fd9\u4f1a\u4f7f\u51fd\u6570\u5bf9\u5176\u4ed6\u7c7b\u8fc7\u4e8e\u53ef\u89c1\u3002<\/li>\n<li><strong>\u4f7f\u7528\u63a5\u53e3\u548c\u62bd\u8c61\u7c7b\u8fdb\u884c\u62bd\u8c61\uff1a<\/strong> \u4f7f\u7528\u63a5\u53e3\u548c\u62bd\u8c61\u7c7b\u5c06\u63a5\u53e3\u4e0e\u5b9e\u73b0\u7ec6\u8282\u5206\u79bb\u5f00\u6765\uff0c\u5e76\u63a7\u5236\u5bf9\u51fd\u6570\u7684\u8bbf\u95ee\u3002<\/li>\n<li><strong>\u7f16\u5199\u5355\u5143\u6d4b\u8bd5\uff1a<\/strong> \u7f16\u5199\u5355\u5143\u6d4b\u8bd5\u6765\u9a8c\u8bc1\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u662f\u5426\u6309\u9884\u671f\u5de5\u4f5c\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<pre>\/\/ \u5b9a\u4e49\u5177\u6709\u4e0d\u540c\u8bbf\u95ee\u6743\u9650\u7684\u7c7b\uff1a\n\nclass MyClass {\n\n    \/\/ public \u51fd\u6570\u5bf9\u6240\u6709\u7c7b\u53ef\u89c1\uff1a\n    public void publicFunc() {\n        \/\/ ...\n    }\n\n    \/\/ protected \u51fd\u6570\u5bf9\u540c\u4e00\u5305\u4e2d\u7684\u7c7b\u548c\u6d3e\u751f\u7c7b\u53ef\u89c1\uff1a\n    protected void protectedFunc() {\n        \/\/ ...\n    }\n\n    \/\/ \u4e0d\u5e26\u8bbf\u95ee\u6743\u9650\u4fee\u9970\u7b26\u7684\u51fd\u6570\u9ed8\u8ba4\u662f\u5305\u79c1\u6709\u7684\uff1a\n    void defaultFunc() {\n        \/\/ ...\n    }\n\n    \/\/ private \u51fd\u6570\u4ec5\u5bf9\u5b9a\u4e49\u5b83\u7684\u7c7b\u53ef\u89c1\uff1a\n    private void privateFunc() {\n        \/\/ ...\n    }\n}\n\n\/\/ \u5728\u53e6\u4e00\u4e2a\u5305\u4e2d\u4f7f\u7528 MyClass\uff1a\n\nclass OtherClass {\n\n    \/\/ \u521b\u5efa MyClass \u5bf9\u8c61\uff1a\n    MyClass myClass = new MyClass();\n\n    \/\/ \u53ea\u80fd\u8bbf\u95ee public \u548c protected \u51fd\u6570\uff1a\n    public void useMyClass() {\n        myClass.publicFunc();\n        myClass.protectedFunc();\n        \/\/ myClass.defaultFunc(); \/\/ \u7f16\u8bd1\u5668\u9519\u8bef\n        \/\/ myClass.privateFunc(); \/\/ \u7f16\u8bd1\u5668\u9519\u8bef\n    }\n}<\/pre>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aJava \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8ejava,\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u51fd\u6570\u8bbf\u95ee\u6743\u9650\u63a7\u5236\u7684\u6700\u4f73&#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-202729","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202729","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=202729"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202729\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}