{"id":769,"date":"2023-03-24T23:25:12","date_gmt":"2023-03-24T15:25:12","guid":{"rendered":"http:\/\/codermr.com\/?p=769"},"modified":"2023-03-25T00:56:32","modified_gmt":"2023-03-24T16:56:32","slug":"%e4%bd%bf%e7%94%a8%e5%ad%90%e7%b1%bb%e5%af%b9%e8%b1%a1%e5%bc%95%e7%94%a8%e8%b0%83%e7%94%a8%e7%88%b6%e7%b1%bb%e6%96%b9%e6%b3%95%e9%81%87%e5%88%b0%e7%9a%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/codermr.com\/index.php\/2023\/03\/24\/%e4%bd%bf%e7%94%a8%e5%ad%90%e7%b1%bb%e5%af%b9%e8%b1%a1%e5%bc%95%e7%94%a8%e8%b0%83%e7%94%a8%e7%88%b6%e7%b1%bb%e6%96%b9%e6%b3%95%e9%81%87%e5%88%b0%e7%9a%84%e9%97%ae%e9%a2%98\/","title":{"rendered":"\u4f7f\u7528\u5b50\u7c7b\u5bf9\u8c61\u8c03\u7528\u8c03\u7528\u7236\u7c7b\u65b9\u6cd5\u65f6\u9047\u5230\u7684\u95ee\u9898"},"content":{"rendered":"\n<p>\u4eca\u5929\u4e0b\u5348 coding \u7684\u65f6\u5019\u9047\u5230\u4e00\u4e2a\u573a\u666f\uff1a\u56e0\u4e3a\u5386\u53f2\u539f\u56e0\u6216\u524d\u4efb\u7801\u519c\u7559\u4e0b\u7684 Bug\uff0c\u5bfc\u81f4\u73b0\u6709\u4e00\u5806\u975e\u5e38\u4e71\u7684\u6570\u636e\u96c6\uff0c\u8fd9\u4e2a\u6570\u636e\u96c6\u5185\u90e8\u8fd8\u5206\u591a\u79cd\u7c7b\u578b\uff0c\u73b0\u5728\u8981\u5bf9\u8fd9\u4e9b\u6570\u636e\u96c6\u8fdb\u884c\u5904\u7406\uff0c\u5904\u7406\u903b\u8f91\u7b80\u5316\u4e00\u70b9\u6765\u8bf4\u5c31\u662f\uff1a\u6bcf\u79cd\u7c7b\u578b\u7684\u6570\u636e\u96c6\uff0c\u90fd\u8981\u6839\u636e\u5176\u6bcf\u6761\u6570\u636e\u7684\u67d0\u4e2a\u6807\u8bc6\u8fdb\u884c\u51b3\u5b9a\u3001\u662f\u6839\u636e\u8be5\u6761\u6570\u636e\u7684 uid \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u8fd8\u662f\u6839\u636e\u5176 name \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u6b64\u4e3a\u80cc\u666f\u3002<\/p>\n\n\n\n<p>\u6211\u5199\u4e86\u4e00\u4e2a\u7236\u7c7b\uff0c\u91cc\u9762\u6709\u4e24\u4e2a\u65b9\u6cd5\uff0c\u4e00\u4e2a\u65b9\u6cd5\uff08handleDataByUid\uff09\u662f\u901a\u7528\u7684\u3001\u6839\u636e uid \u5904\u7406\u6570\u636e\uff0c\u8be5\u65b9\u6cd5\u53ef\u4ee5\u88ab\u4e0d\u540c\u5b50\u7c7b\u91cd\u5199\u6216\u8c03\u7528\uff1b\u53e6\u4e00\u4e2a\u65b9\u6cd5\uff08handleDataByName\uff09\u4e5f\u662f\u901a\u7528\u7684\u3001\u662f\u6839\u636e name \u5904\u7406\u6570\u636e\uff0c\u8be5\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u88ab\u4e0d\u540c\u5b50\u7c7b\u91cd\u5199\u6216\u8c03\u7528\uff1bParent \u7c7b\u7684\u7b80\u5316\u7248\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Parent {\n\n    public void handleDataByUid() {\n        \/\/ \u5904\u7406\u903b\u8f91 .....\n        System.out.println(\"\u8fd9\u662f\u7236\u7c7b\u7684 handleDataByUid\");\n    }\n\n    public void handleDataByName() {\n        \/\/ \u5904\u7406\u903b\u8f91 .....\n        System.out.println(\"\u8fd9\u662f\u7236\u7c7b\u7684 handleDataByName\");\n    }\n\n}<\/code><\/pre>\n\n\n\n<p>\u6839\u636e\u6211\u5bf9\u4e0d\u540c\u7c7b\u578b\u6570\u636e\u96c6\u7684\u62bd\u6837\u5206\u6790\uff0c\u53d1\u73b0\u6709\u7684\u7c7b\u578b\u7684\u6570\u636e\u96c6\u662f\u6839\u636e uid \u67e5\u5e93\u5904\u7406\uff0c\u6709\u7684\u7c7b\u578b\u7684\u6570\u636e\u96c6\u662f\u6839\u636e name \u67e5\u5e93\u5904\u7406\uff0c\u6211\u7684\u60f3\u6cd5\u662f\uff0c\u7236\u7c7b\u4e2d\u7684\u65b9\u6cd5\u53ea\u63d0\u4f9b\u6807\u51c6\u7684\u6839\u636e uid \u5904\u7406\u6570\u636e\u6216\u6839\u636e name \u5904\u7406\u6570\u636e\u7684\u903b\u8f91\uff0c\u5b50\u7c7b\u5728\u91cd\u5199\u7684 handleDataByUid \u6216 handleDataByName \u65b9\u6cd5\u4e2d\u505a\u4e00\u4e9b\u6570\u636e\u6821\u9a8c\u7684\u4ec0\u4e48\u5de5\u4f5c\u540e\uff0c\u76f4\u63a5\u8c03\u7528\u7236\u7c7b\u7684 handleDataByUid \u6216 handleDataByName \u65b9\u6cd5\u3002<\/p>\n\n\n\n<p>\u5728\u6211\u5904\u7406\u5230\u67d0\u4e2a\u7c7b\u578b\u7684\u6570\u636e\u96c6\u65f6\uff0c\u6211\u62bd\u6837\u5206\u6790\u53d1\u73b0\u8be5\u7c7b\u578b\u6570\u636e\u96c6\u662f\u6839\u636e name \u67e5\u5e93\u5904\u7406\u7684\uff0c\u4f46\u6211\u5df2\u7ecf\u5728\u5b50\u7c7b\u4e2d\u5199\u4e86\u4e2a handleDataByUid \u7684\u7a7a\u65b9\u6cd5\uff0c\u4e8e\u662f\u6211\u61d2\u7684\u6539\u76f4\u63a5\u5728\u5728 handleDataByUid  \u4e2d\u53c8\u8c03\u7528\u4e86\u7236\u7c7b\u7684 handleDataByName \u65b9\u6cd5\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Child extends Parent {\n\n    @Override\n    public void handleDataByUid() {\n        super.handleDataByName();\n        System.out.println(\"\u8fd9\u662f\u5b50\u7c7b\u7684 handleDataByUid\");\n    }\n\n}<\/code><\/pre>\n\n\n\n<p>\u5199\u5b8c\u4ee3\u7801\uff0c\u5f53\u6211\u968f\u673a\u627e\u4e86\u51e0\u5341\u4e2a\u6570\u636e\u8fdb\u884c\u6d4b\u8bd5\u65f6\u53d1\u73b0\uff0c\u8be5\u7c7b\u578b\u6570\u636e\u96c6\u4e2d\u7adf\u7136\u8fd8\u6709\u6839\u636e uid \u67e5\u5e93\u5904\u7406\u7684\uff0c\u4e8e\u662f\u6211\u628a Parent \u7c7b\u4e2d\u7684 handleDataByName \u65b9\u6cd5\u91cc\u53c8\u52a0\u4e86\u4e2a\u5224\u65ad\uff0c\u9488\u5bf9\u67d0\u79cd\u60c5\u51b5\uff0c\u518d\u8c03\u4e00\u4e0b\u7236\u7c7b\u4e2d\u7684 handleDataByUid \u65b9\u6cd5\uff0c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class Parent {\n\n    public void handleDataByUid() {\n        System.out.println(\"\u8fd9\u662f\u7236\u7c7b\u7684 handleDataByUid\");\n    }\n\n    public void handleDataByName() {\n        \/\/ \u5904\u7406\u903b\u8f91 .....\n\n        \/\/ \u9488\u5bf9\u67d0\u79cd\u60c5\u51b5\u4e86\uff0c\u518d\u8c03\u4e00\u4e0b\u4e0a\u9762\u7684 handleDataByUid() \u65b9\u6cd5\uff0c\u5c31\u662f\u8fd9\u4e00\u8c03\uff0c\u4ea7\u751f\u4e86 StackOverflowError\n        handleDataByUid();\n        System.out.println(\"\u8fd9\u662f\u7236\u7c7b\u7684 handleDataByName\");\n    }\n\n}<\/code><\/pre>\n\n\n\n<p>\u4e8e\u662f\uff0c\u5f53\u6211\u8fd0\u884c\u7a0b\u5e8f\u65f6\u5c31\u51fa\u73b0\u4e86 StackOverflowError \u9519\u8bef\uff0c\u63d0\u793a&#8221;\u5b58\u5728\u5faa\u73af\u8c03\u7528&#8221;\u4e14\u65e0\u6cd5\u7ec8\u6b62\uff0c\u6700\u7ec8\u9020\u6210  StackOverflowError \u3002\u7136\u540e\u6211\u5f88\u5feb\u660e\u767d\u4e86\uff0c\u6211\u7528\u5b50\u7c7b\u5bf9\u8c61\u5f15\u7528\uff0c\u8c03\u7528\u7236\u7c7b\u7684 handleDataByName  \u65b9\u6cd5\uff0c\u5728\u7236\u7c7b\u7684 handleDataByName  \u65b9\u6cd5\u4e2d\u53c8\u8c03\u4e86 handleDataByUid  \u65b9\u6cd5\uff0c\u6211\u672c\u610f\u662f\u8c03\u7528\u7236\u7c7b\u4e2d\u7684 handleDataByUid \u65b9\u6cd5\uff0c\u4f46\u56e0\u4e3a\u662f\u7528\u5b50\u7c7b\u5bf9\u8c61\u7684\u5f15\u7528\u8c03\u7684\uff0c\u6240\u4ee5\u5b9e\u9645\u4e0a\u4f1a\u8c03\u7528\u5b50\u7c7b\u7684 handleDataByUid \u65b9\u6cd5\uff0c\u5982\u6b64\u4e00\u6765\u5c31\u9020\u6210\u4e86\u5faa\u73af\u8c03\u7528\uff0c\u51fa\u73b0 StackOverflowError \u3002<\/p>\n\n\n\n<p>\u5904\u7406\u529e\u6cd5\u5176\u5b9e\u5f88\u7b80\u5355\uff0c\u6211\u53ef\u4ee5\u5728\u5b50\u7c7b\u65b9\u6cd5\u4e2d\u901a\u8fc7 super \u6765\u5bf9\u7236\u7c7b\u4e2d\u7684\u4e24\u4e2a\u65b9\u6cd5\u8fdb\u884c\u8c03\u7528\u3002<\/p>\n\n\n\n<p>\u4f46\u6211\u60f3\u77e5\u9053\u7684\u662f\uff0c\u600e\u4e48\u5728\u7236\u7c7b handleDataByName  \u65b9\u6cd5\u4e2d\u90a3\u884c handleDataByUid  \u8c03\u7528\uff0c\u8c03\u7684\u662f\u7236\u7c7b\u7684 handleDataByUid  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class=\"wp-block-heading\">\u5b8c\u3002<\/h1>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u5929\u4e0b\u5348 coding \u7684\u65f6\u5019\u9047\u5230\u4e00\u4e2a\u573a\u666f\uff1a\u56e0\u4e3a\u5386\u53f2\u539f\u56e0\u6216\u524d\u4efb\u7801\u519c\u7559\u4e0b\u7684 Bug\uff0c\u5bfc\u81f4\u73b0\u6709\u4e00\u5806\u975e\u5e38\u4e71\u7684\u6570\u636e\u96c6\uff0c&#8230;<\/p>\n","protected":false},"author":1,"featured_media":789,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,50],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528\u5b50\u7c7b\u5bf9\u8c61\u8c03\u7528\u8c03\u7528\u7236\u7c7b\u65b9\u6cd5\u65f6\u9047\u5230\u7684\u95ee\u9898 - \u7801\u5148\u751f\u7684\u535a\u5ba2<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" 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