{"id":203868,"date":"2025-05-22T13:58:48","date_gmt":"2025-05-22T05:58:48","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203868\/"},"modified":"2025-05-22T13:58:48","modified_gmt":"2025-05-22T05:58:48","slug":"java8%e4%b8%ad%e9%87%8d%e5%86%99equals%e6%96%b9%e6%b3%95%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88%e9%9c%80%e8%a6%81%e5%bc%ba%e5%88%b6%e7%b1%bb%e5%9e%8b%e8%bd%ac%e6%8d%a2%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203868\/","title":{"rendered":"Java8\u4e2d\u91cd\u5199equals\u65b9\u6cd5\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Java8\u4e2d\u91cd\u5199equals\u65b9\u6cd5\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\uff1f<\/h1>\n

\u77e5\u8bc6\u70b9\u638c\u63e1\u4e86\uff0c\u8fd8\u9700\u8981\u4e0d\u65ad\u7ec3\u4e60\u624d\u80fd\u719f\u7ec3\u8fd0\u7528\u3002\u4e0b\u9762\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u4e2a\u6587\u7ae0\u5f00\u53d1\u5b9e\u6218\uff0c\u624b\u628a\u624b\u6559\u5927\u5bb6\u5b66\u4e60\u300aJava8\u4e2d\u91cd\u5199equals\u65b9\u6cd5\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\uff1f\u300b\uff0c\u5728\u5b9e\u73b0\u529f\u80fd\u7684\u8fc7\u7a0b\u4e2d\u4e5f\u5e26\u5927\u5bb6\u91cd\u65b0\u6e29\u4e60\u76f8\u5173\u77e5\u8bc6\u70b9\uff0c\u6e29\u6545\u800c\u77e5\u65b0\uff0c\u56de\u5934\u770b\u770b\u8bf4\u4e0d\u5b9a\u53c8\u6709\u4e0d\u4e00\u6837\u7684\u611f\u609f\uff01<\/p>\n

<\/p>\n

Java8\u4e2d\u91cd\u5199equals\u7684\u7591\u8651<\/strong><\/p>\n

\u5728Java\u4e2d\uff0cequals()\u65b9\u6cd5\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5bf9\u8c61\u7684\u76f8\u7b49\u6027\u3002\u91cd\u5199Object\u7c7b\u7684equals()\u65b9\u6cd5\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5bf9\u8c61\u7684\u6bd4\u8f83\u903b\u8f91\u3002<\/p>\n

\u95ee\u9898\uff1a\u5f3a\u8f6c\u7684\u5fc5\u8981\u6027<\/strong><\/p>\n

\u5728\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u4f60\u91cd\u5199\u4e86Phone\u7c7b\u7684equals()\u65b9\u6cd5\u3002\u65b9\u6cd5\u7684\u7b2c\u4e00\u884c\u8f93\u51faobj\u7684\u5185\u5bb9\u4e3a\u201cPhone@1b6d3586\u201d\uff0c\u8868\u660eobj\u662f\u4e00\u4e2aPhone\u7c7b\u7684\u5b9e\u4f8b\u3002\u7136\u800c\uff0c\u65b9\u6cd5\u7684\u5f62\u53c2\u5374\u662f\u4e00\u4e2aObject\u7c7b\u578b\u7684\u5bf9\u8c61\u3002\u90a3\u4e48\uff0c\u4e3a\u4ec0\u4e48\u9700\u8981\u5c06obj\u5f3a\u8f6c\u4e3aPhone\u7c7b\u578b\uff1f<\/p>\n

\u7b54\u6848\uff1a\u7c7b\u578b\u68c0\u67e5\u548c\u65b9\u6cd5\u8bbf\u95ee<\/strong><\/p>\n

\u867d\u7136obj\u662fPhone\u7c7b\u7684\u5b9e\u4f8b\uff0c\u4f46\u5b83\u7684\u7c7b\u578b\u58f0\u660e\u4e3aObject\u3002\u8fd9\u610f\u5473\u7740\u7f16\u8bd1\u5668\u53ea\u77e5\u9053obj\u662f\u4e00\u4e2aObject\u5bf9\u8c61\uff0c\u800c\u4e0d\u77e5\u9053\u5b83\u62e5\u6709Phone\u7c7b\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u3002<\/p>\n

\u5f53\u7f16\u8bd1\u5668\u770b\u5230equals()\u65b9\u6cd5\u7684\u5f62\u53c2\u7c7b\u578b\u4e3aObject\u65f6\uff0c\u5b83\u4f1a\u8ba4\u4e3a\u65b9\u6cd5\u53ea\u80fd\u8bbf\u95eeObject\u7c7b\u7684\u65b9\u6cd5\u3002\u800c getName()\u548cgetPrice()\u65b9\u6cd5\u5728Object\u7c7b\u4e2d\u5e76\u4e0d\u5b58\u5728\u3002<\/p>\n

\u56e0\u6b64\uff0c\u9700\u8981\u5c06obj\u5f3a\u8f6c\u4e3aPhone\u7c7b\u578b\uff0c\u4ee5\u544a\u8bc9\u7f16\u8bd1\u5668\uff1a\u8fd9\u4e2aObject\u5bf9\u8c61\u5b9e\u9645\u4e0a\u662fPhone\u7684\u5b9e\u4f8b\uff0c\u53ef\u4ee5\u8bbf\u95eePhone\u7c7b\u7684\u65b9\u6cd5\u3002<\/p>\n

\u6ce8\u610f\u4e8b\u9879\uff1ahashCode\u7684\u91cd\u5199<\/strong><\/p>\n

\u5f53\u91cd\u5199equals()\u65b9\u6cd5\u65f6\uff0c\u901a\u5e38\u8fd8\u9700\u8981\u91cd\u5199hashCode()\u65b9\u6cd5\u3002\u8fd9\u662f\u56e0\u4e3a\u5728\u96c6\u5408\u7c7b\u4e2d\uff0cequals()\u548chashCode()\u65b9\u6cd5\u662f\u6210\u5bf9\u4f7f\u7528\u7684\u3002\u4e0d\u91cd\u5199hashCode()\u65b9\u6cd5\u53ef\u80fd\u4f1a\u5bfc\u81f4\u96c6\u5408\u7c7b\u5728\u6bd4\u8f83\u5bf9\u8c61\u65f6\u51fa\u73b0\u4e0d\u4e00\u81f4\u7684\u7ed3\u679c\u3002<\/p>\n

\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aJava8\u4e2d\u91cd\u5199equals\u65b9\u6cd5\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5f3a\u5236\u7c7b\u578b\u8f6c\u6362\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u516c\u4f17\u53f7\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"

Java8\u4e2d\u91cd\u5199equals\u65b9\u6cd5...<\/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-203868","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203868","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=203868"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203868\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}