{"id":203369,"date":"2025-05-22T09:31:36","date_gmt":"2025-05-22T01:31:36","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203369\/"},"modified":"2025-05-22T09:31:36","modified_gmt":"2025-05-22T01:31:36","slug":"springboot-jpa-%e6%9f%a5%e8%af%a2%e6%95%b0%e6%8d%ae%e6%97%b6%ef%bc%8c%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad%e5%af%b9%e8%b1%a1%e6%98%af%e5%90%a6%e4%b8%ba%e7%a9%ba%e4%b8%94%e9%81%bf%e5%85%8dobjec","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203369\/","title":{"rendered":"SpringBoot JPA \u67e5\u8be2\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a\u4e14\u907f\u514d\u201cObject references an unsaved transient instance\u201d\u9519\u8bef\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>SpringBoot JPA \u67e5\u8be2\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a\u4e14\u907f\u514d\u201cObject references an unsaved transient instance\u201d\u9519\u8bef\uff1f<\/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\">\u300aSpringBoot JPA \u67e5\u8be2\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a\u4e14\u907f\u514d\u201cObject references an unsaved transient instance\u201d\u9519\u8bef\uff1f\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\/20241106\/1730883469672b2f8dda020.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>springboot\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a<\/strong><\/p>\n<p>\u5728\u4f7f\u7528jpa\u67e5\u8be2\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u9047\u5230\u5982\u4e0b\u63d0\u793a\uff1a<\/p>\n<pre>Object references an unsaved transient instance - save the transient instance before flushing or set flush mode to COMMIT<\/pre>\n<p>\u63d0\u793a\u7684\u5173\u952e\u662f\u201cobject references an unsaved transient instance\u201d\uff0c\u8868\u793a\u5bf9\u8c61\u5f15\u7528\u4e86\u4e00\u4e2a\u672a\u4fdd\u5b58\u7684\u77ac\u6001\u5b9e\u4f8b\u3002<\/p>\n<p><strong>\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a<\/strong><\/p>\n<p>\u4e0a\u8ff0\u63d0\u793a\u8868\u660e\u7cfb\u7edf\u8ba4\u4e3a\u8be5\u5bf9\u8c61\u4e0d\u53ef\u80fd\u4e3a\u7a7a\uff0c\u5374\u4f7f\u7528\u4e86\u7a7a\u5224\u65ad\u3002\u51fa\u73b0\u8fd9\u79cd\u60c5\u51b5\u7684\u539f\u56e0\u662f\uff0c\u5df2\u8c03\u7528\u4e86\u8be5\u5bf9\u8c61\u7684 system.out.print \u65b9\u6cd5\uff0c\u56e0\u6b64\u7cfb\u7edf\u5c06\u5176\u89c6\u4e3a\u975e\u7a7a\u5bf9\u8c61\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aSpringBoot JPA \u67e5\u8be2\u6570\u636e\u65f6\uff0c\u5982\u4f55\u5224\u65ad\u5bf9\u8c61\u662f\u5426\u4e3a\u7a7a\u4e14\u907f\u514d\u201cObject references an unsaved transient instance\u201d\u9519\u8bef\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SpringBoot JPA \u67e5&#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-203369","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203369","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=203369"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203369\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}