{"id":203654,"date":"2025-05-22T13:06:20","date_gmt":"2025-05-22T05:06:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203654\/"},"modified":"2025-05-22T13:06:20","modified_gmt":"2025-05-22T05:06:20","slug":"java-%e6%8e%a5%e5%8f%a3%e5%b1%9e%e6%80%a7%e4%b8%ba%e4%bd%95%e5%8f%af%e4%bb%a5%e6%98%af-protected%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203654\/","title":{"rendered":"Java \u63a5\u53e3\u5c5e\u6027\u4e3a\u4f55\u53ef\u4ee5\u662f protected\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Java \u63a5\u53e3\u5c5e\u6027\u4e3a\u4f55\u53ef\u4ee5\u662f protected\uff1f<\/h1>\n<p>\u4eb2\u7231\u7684\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5982\u679c\u4f60\u70b9\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u8bf4\u660e\u4f60\u5bf9\u300aJava \u63a5\u53e3\u5c5e\u6027\u4e3a\u4f55\u53ef\u4ee5\u662f protected\uff1f\u300b\u5f88\u611f\u5174\u8da3\u3002\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u7ed9\u5927\u5bb6\u8be6\u7ec6\u89e3\u6790\u4e00\u4e0b\uff0c\u4e3b\u8981\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u6240\u6709\u8ba4\u771f\u8bfb\u5b8c\u7684\u7ae5\u978b\u4eec\uff0c\u90fd\u6709\u5b9e\u8d28\u6027\u7684\u63d0\u9ad8\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241116\/173173847367383b69dd316.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u63a5\u53e3\u5c5e\u6027\u4e3a\u4f55\u4e0d\u662f public static final\uff1f<\/strong><\/p>\n<p>Java \u4e2d\u7684\u63a5\u53e3\u5c5e\u6027\u901a\u5e38\u90fd\u662f public static final \u7684\uff0c\u4f46\u8fd9\u5e76\u4e0d\u662f\u5f3a\u5236\u6027\u7684\u89c4\u5b9a\u3002\u6709\u65f6\uff0c\u63a5\u53e3\u5c5e\u6027\u4e5f\u53ef\u4ee5\u662f protected \u7684\uff0c\u5982\u793a\u4f8b\u4e2d\u6240\u793a\u3002<\/p>\n<p><strong>\u4e3a\u4f55\u6b64\u5904\u5c5e\u6027\u4e3a protected\uff1f<\/strong><\/p>\n<p>\u793a\u4f8b\u4e2d\u63a5\u53e3 Runner \u7684\u5c5e\u6027 id \u88ab\u6807\u8bb0\u4e3a protected\uff0c\u8fd9\u662f\u6709\u7279\u5b9a\u539f\u56e0\u7684\u3002<\/p>\n<ul>\n<li><strong>\u9632\u6b62\u5c5e\u6027\u88ab\u5916\u90e8\u4fee\u6539\uff1a<\/strong>protected \u5c5e\u6027\u53ef\u4ee5\u88ab\u5b50\u7c7b\u8bbf\u95ee\uff0c\u4f46\u4e0d\u80fd\u88ab\u5176\u4ed6\u7c7b\u76f4\u63a5\u8bbf\u95ee\u3002\u8fd9\u53ef\u4ee5\u9632\u6b62\u5916\u90e8\u4ee3\u7801\u610f\u5916\u4fee\u6539\u63a5\u53e3\u7684\u5c5e\u6027\u3002<\/li>\n<li><strong>\u5141\u8bb8\u591a\u6001\u884c\u4e3a\uff1a<\/strong>protected \u5c5e\u6027\u53ef\u4ee5\u5728\u5b50\u7c7b\u4e2d\u88ab\u91cd\u5199\u3002\u8fd9\u5141\u8bb8\u5b50\u7c7b\u5b9e\u73b0\u4e0d\u540c\u7684\u884c\u4e3a\uff0c\u540c\u65f6\u4ecd\u4fdd\u6301\u63a5\u53e3\u7684\u516c\u5171\u5408\u7ea6\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u7075\u6d3b\u6027\uff1a<\/strong>protected \u5c5e\u6027\u6bd4 private \u5c5e\u6027\u66f4\u52a0\u7075\u6d3b\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u5728\u5b50\u7c7b\u4e2d\u88ab\u8bbf\u95ee\u3002\u8fd9\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u8bbe\u8ba1\u9009\u9879\uff0c\u4e5f\u5141\u8bb8\u5728\u4e0d\u521b\u5efa\u65b0\u63a5\u53e3\u7684\u60c5\u51b5\u4e0b\u6269\u5c55\u63a5\u53e3\u529f\u80fd\u3002<\/li>\n<\/ul>\n<p><strong>\u622a\u56fe\u793a\u4f8b<\/strong><\/p>\n<p>\u56fe\u7247 1 \u5c55\u793a\u4e86 Java \u6587\u6863\u4e2d\u5173\u4e8e\u63a5\u53e3\u5c5e\u6027\u7684\u89c4\u5b9a\uff0c\u6307\u51fa\u5b83\u4eec\u901a\u5e38\u662f public static final \u7684\u3002<\/p>\n<p>\u56fe\u7247 2 \u5c55\u793a\u4e86 Java \u7f16\u8bd1\u5668\u5bf9 protected \u63a5\u53e3\u5c5e\u6027\u7684\u8ba4\u53ef\u3002<\/p>\n<p><strong>\u7ed3\u675f\u8bed<\/strong><\/p>\n<p>\u867d\u7136 Java \u63a5\u53e3\u5c5e\u6027\u901a\u5e38\u662f public static final \u7684\uff0c\u4f46 protected \u5c5e\u6027\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u4e5f\u662f\u6709\u7528\u7684\u3002\u5b83\u4eec\u63d0\u4f9b\u4e86\u9632\u6b62\u5916\u90e8\u4fee\u6539\u3001\u652f\u6301\u591a\u6001\u548c\u63d0\u4f9b\u7075\u6d3b\u6027\u7684\u4f18\u70b9\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aJava \u63a5\u53e3\u5c5e\u6027\u4e3a\u4f55\u53ef\u4ee5\u662f protected\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Java \u63a5\u53e3\u5c5e\u6027\u4e3a\u4f55\u53ef\u4ee5\u662f p&#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-203654","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203654","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=203654"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203654\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}