{"id":771,"date":"2023-12-14T02:16:25","date_gmt":"2023-03-19T13:17:52","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%9c%a8hibernate%e4%b8%ad%ef%bc%8csession%e7%9a%84get%e5%92%8cload%e6%96%b9%e6%b3%95%e6%9c%89%e4%bd%95%e4%b8%8d%e5%90%8c%ef%bc%8c%e9%99%84%e5%b8%a6%e7%a4%ba%e4%be%8b%e3%80%82\/"},"modified":"2025-08-03T07:10:39","modified_gmt":"2025-08-02T23:10:39","slug":"%e5%9c%a8hibernate%e4%b8%ad%ef%bc%8csession%e7%9a%84get%e5%92%8cload%e6%96%b9%e6%b3%95%e6%9c%89%e4%bd%95%e4%b8%8d%e5%90%8c%ef%bc%8c%e9%99%84%e5%b8%a6%e7%a4%ba%e4%be%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8hibernate%e4%b8%ad%ef%bc%8csession%e7%9a%84get%e5%92%8cload%e6%96%b9%e6%b3%95%e6%9c%89%e4%bd%95%e4%b8%8d%e5%90%8c%ef%bc%8c%e9%99%84%e5%b8%a6%e7%a4%ba%e4%be%8b%e3%80%82\/","title":{"rendered":"Hibernate Session\u4e2dget()\u4e0eload()\u65b9\u6cd5\u533a\u522b\u8be6\u89e3\uff1a\u9644\u5e26\u5b9e\u4f8b\u5bf9\u6bd4"},"content":{"rendered":"<p>Hibernate Session\u63d0\u4f9b\u4e86\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u6570\u636e\u7684\u4e0d\u540c\u65b9\u6cd5\u3002\u5176\u4e2d\u4e24\u4e2a\u65b9\u6cd5\u662fget()\u548cload()\u3002\u9488\u5bf9\u8fd9\u4e24\u4e2a\u65b9\u6cd5\uff0c\u8fd8\u6709\u5f88\u591a\u91cd\u8f7d\u65b9\u6cd5\u53ef\u4ee5\u5728\u4e0d\u540c\u60c5\u51b5\u4e0b\u4f7f\u7528\u3002\u4e4d\u4e00\u770b\uff0cget()\u548cload()\u4f3c\u4e4e\u76f8\u4f3c\uff0c\u56e0\u4e3a\u5b83\u4eec\u90fd\u7528\u4e8e\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u6570\u636e\uff0c\u7136\u800c\u5b83\u4eec\u4e4b\u95f4\u6709\u4e00\u4e9b\u533a\u522b\u3002\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u6765\u770b\u4e00\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.Olivia.hibernate.main;\r\n\r\nimport org.hibernate.Session;\r\nimport org.hibernate.SessionFactory;\r\nimport org.hibernate.Transaction;\r\n\r\nimport com.Olivia.hibernate.model.Employee;\r\nimport com.Olivia.hibernate.util.HibernateUtil;\r\n\r\npublic class HibernateGetVsLoad {\r\n\r\n\tpublic static void main(String[] args) {\r\n\t\t\r\n\t\t\/\/ \u51c6\u5907\u5de5\u4f5c\r\n\t\tSessionFactory sessionFactory = HibernateUtil.getSessionFactory();\r\n\t\tSession session = sessionFactory.openSession();\r\n\t\tTransaction tx = session.beginTransaction();\r\n\t\t\r\n\t\t\/\/ get()\u793a\u4f8b\r\n\t\tEmployee emp = (Employee) session.get(Employee.class, new Long(2));\r\n\t\tSystem.out.println(\"\u8c03\u7528\u4e86Employee get\u65b9\u6cd5\");\r\n\t\tSystem.out.println(\"\u5458\u5de5ID= \"+emp.getId());\r\n\t\tSystem.out.println(\"\u5458\u5de5get\u8be6\u7ec6\u4fe1\u606f:: \"+emp+\"\\n\");\r\n\t\t\r\n\t\t\/\/ load()\u793a\u4f8b\r\n\t\tEmployee emp1 = (Employee) session.load(Employee.class, new Long(1));\r\n\t\tSystem.out.println(\"\u8c03\u7528\u4e86Employee load\u65b9\u6cd5\");\r\n\t\tSystem.out.println(\"\u5458\u5de5ID= \"+emp1.getId());\r\n\t\tSystem.out.println(\"\u5458\u5de5load\u8be6\u7ec6\u4fe1\u606f:: \"+emp1+\"\\n\");\r\n\t\t\r\n\t\t\/\/ \u5173\u95ed\u8d44\u6e90\r\n\t\ttx.commit();\r\n\t\tsessionFactory.close();\r\n\t}\r\n}\r\n<\/code><\/pre>\n<p>\u5f53\u6211\u6267\u884c\u4e0a\u8ff0\u4ee3\u7801\u65f6\uff0c\u5b83\u4f1a\u4ea7\u751f\u4ee5\u4e0b\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<pre class=\"post-pre\"><code>Hibernate: select employee0_.emp_id as emp_id1_1_0_, employee0_.emp_name as emp_name2_1_0_, employee0_.emp_salary as emp_sala3_1_0_, address1_.emp_id as emp_id1_0_1_, address1_.address_line1 as address_2_0_1_, address1_.city as city3_0_1_, address1_.zipcode as zipcode4_0_1_ from EMPLOYEE employee0_ left outer join ADDRESS address1_ on employee0_.emp_id=address1_.emp_id where employee0_.emp_id=?\r\n\u8c03\u7528\u4e86Employee get\u65b9\u6cd5\r\n\u5458\u5de5ID= 2\r\n\u5458\u5de5get\u8be6\u7ec6\u4fe1\u606f:: Id= 2, Name= David, Salary= 200.0, {Address= AddressLine1= Arques Ave, City=Santa Clara, Zipcode=95051}\r\n\r\n\u8c03\u7528\u4e86Employee load\u65b9\u6cd5\r\n\u5458\u5de5ID= 1\r\nHibernate: select employee0_.emp_id as emp_id1_1_0_, employee0_.emp_name as emp_name2_1_0_, employee0_.emp_salary as emp_sala3_1_0_, address1_.emp_id as emp_id1_0_1_, address1_.address_line1 as address_2_0_1_, address1_.city as city3_0_1_, address1_.zipcode as zipcode4_0_1_ from EMPLOYEE employee0_ left outer join ADDRESS address1_ on employee0_.emp_id=address1_.emp_id where employee0_.emp_id=?\r\n\u5458\u5de5load\u8be6\u7ec6\u4fe1\u606f:: Id= 1, Name= Pankaj, Salary= 100.0, {Address= AddressLine1= Albany Dr, City=San Jose, Zipcode=95129}\r\n<\/code><\/pre>\n<p>\u4ece\u8f93\u51fa\u7ed3\u679c\u6765\u770b\uff0c\u5f88\u660e\u663eget()\u901a\u8fc7\u4ece\u6570\u636e\u5e93\u6216Hibernate\u7f13\u5b58\u4e2d\u83b7\u53d6\u5bf9\u8c61\u8fd4\u56de\u8be5\u5bf9\u8c61\uff0c\u800cload()\u53ea\u8fd4\u56de\u4e00\u4e2a\u53ef\u80fd\u4e0d\u5b58\u5728\u7684\u5bf9\u8c61\u7684\u5f15\u7528\uff0c\u53ea\u6709\u5f53\u60a8\u8bbf\u95ee\u5bf9\u8c61\u7684\u5176\u4ed6\u5c5e\u6027\u65f6\uff0c\u5b83\u624d\u4ece\u6570\u636e\u5e93\u6216\u7f13\u5b58\u4e2d\u52a0\u8f7d\u6570\u636e\u3002\u73b0\u5728\u8ba9\u6211\u4eec\u5c1d\u8bd5\u83b7\u53d6\u6570\u636e\u5e93\u4e2d\u4e0d\u5b58\u5728\u7684\u6570\u636e\u3002<\/p>\n<pre class=\"post-pre\"><code>\/\/ get()\u793a\u4f8b\r\ntry{\r\nEmployee emp = (Employee) session.get(Employee.class, new Long(200));\r\nSystem.out.println(\"\u8c03\u7528\u4e86Employee get\u65b9\u6cd5\");\r\nif(emp != null){\r\nSystem.out.println(\"\u5458\u5de5GET ID= \"+emp.getId());\r\nSystem.out.println(\"\u5458\u5de5get\u8be6\u7ec6\u4fe1\u606f:: \"+emp+\"\\n\");\r\n}\r\n}catch(Exception e){\r\n\te.printStackTrace();\r\n}\r\n\r\n\/\/ load()\u793a\u4f8b\r\ntry{\r\nEmployee emp1 = (Employee) session.load(Employee.class, new Long(100));\r\nSystem.out.println(\"\u8c03\u7528\u4e86Employee load\u65b9\u6cd5\");\r\nSystem.out.println(\"\u5458\u5de5LOAD ID= \"+emp1.getId());\r\nSystem.out.println(\"\u5458\u5de5load\u8be6\u7ec6\u4fe1\u606f:: \"+emp1+\"\\n\");\r\n}catch(Exception e){\r\n\te.printStackTrace();\r\n}\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4ea7\u751f\u4ee5\u4e0b\u8f93\u51fa\u3002<\/p>\n<pre class=\"post-pre\"><code>Hibernate: select employee0_.emp_id as emp_id1_1_0_, employee0_.emp_name as emp_name2_1_0_, employee0_.emp_salary as emp_sala3_1_0_, address1_.emp_id as emp_id1_0_1_, address1_.address_line1 as address_2_0_1_, address1_.city as city3_0_1_, address1_.zipcode as zipcode4_0_1_ from EMPLOYEE employee0_ left outer join ADDRESS address1_ on employee0_.emp_id=address1_.emp_id where employee0_.emp_id=?\r\n\u8c03\u7528\u4e86Employee get\u65b9\u6cd5\r\n\u8c03\u7528\u4e86Employee load\u65b9\u6cd5\r\n\u5458\u5de5LOAD ID= 100\r\nHibernate: select employee0_.emp_id as emp_id1_1_0_, employee0_.emp_name as emp_name2_1_0_, employee0_.emp_salary as emp_sala3_1_0_, address1_.emp_id as emp_id1_0_1_, address1_.address_line1 as address_2_0_1_, address1_.city as city3_0_1_, address1_.zipcode as zipcode4_0_1_ from EMPLOYEE employee0_ left outer join ADDRESS address1_ on employee0_.emp_id=address1_.emp_id where employee0_.emp_id=?\r\norg.hibernate.ObjectNotFoundException: No row with the given identifier exists: [com.Olivia.hibernate.model.Employee#100]\r\n\tat org.hibernate.internal.SessionFactoryImpl$1$1.handleEntityNotFound(SessionFactoryImpl.java:253)\r\n\tat org.hibernate.proxy.AbstractLazyInitializer.checkTargetState(AbstractLazyInitializer.java:262)\r\n\tat org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:176)\r\n\tat org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:286)\r\n\tat org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:185)\r\n\tat com.Olivia.hibernate.model.Employee_$$_jvst407_1.toString(Employee_$$_jvst407_1.java)\r\n\tat java.lang.String.valueOf(String.java:2847)\r\n\tat java.lang.StringBuilder.append(StringBuilder.java:128)\r\n\tat com.Olivia.hibernate.main.HibernateExample.main(HibernateExample.java:36)\r\n<\/code><\/pre>\n<p>\u4ed4\u7ec6\u770b\u8f93\u51fa\u7ed3\u679c\uff0c\u5f53\u6211\u4eec\u4f7f\u7528get()\u6765\u68c0\u7d22\u4e0d\u5b58\u5728\u7684\u6570\u636e\u65f6\uff0c\u5b83\u4f1a\u8fd4\u56denull\u3002\u8fd9\u662f\u6709\u9053\u7406\u7684\uff0c\u56e0\u4e3a\u5b83\u5728\u8c03\u7528\u65f6\u5c1d\u8bd5\u52a0\u8f7d\u6570\u636e\u3002\u800c\u4f7f\u7528load()\uff0c\u6211\u4eec\u80fd\u591f\u6253\u5370\u51faid\uff0c\u4f46\u662f\u8bd5\u56fe\u8bbf\u95ee\u5176\u4ed6\u5b57\u6bb5\u65f6\uff0c\u5b83\u4f1a\u89e6\u53d1\u6570\u636e\u5e93\u67e5\u8be2\uff0c\u5e76\u5728\u7ed9\u5b9a\u6807\u8bc6\u7b26\u627e\u4e0d\u5230\u8bb0\u5f55\u65f6\u629b\u51faorg.hibernate.ObjectNotFoundException\u5f02\u5e38\u3002\u8fd9\u662f\u4e00\u4e2a\u7279\u5b9a\u4e8eHibernate\u7684\u8fd0\u884c\u65f6\u5f02\u5e38\uff0c\u6240\u4ee5\u6211\u4eec\u4e0d\u9700\u8981\u663e\u5f0f\u5730\u6355\u6349\u5b83\u3002\u8ba9\u6211\u4eec\u4e5f\u6765\u770b\u4e00\u4e9b\u65b9\u6cd5\u7684\u91cd\u8f7d\u3002\u4ee5\u4e0a\u7684get()\u548cload()\u65b9\u6cd5\u4e5f\u53ef\u4ee5\u6309\u7167\u4e0b\u9762\u7684\u65b9\u5f0f\u7f16\u5199\u3002<\/p>\n<pre class=\"post-pre\"><code>\/\/ \u4f7f\u7528\u7c7b\u540d\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53c2\u6570\u7684get()\u65b9\u6cd5\r\nEmployee emp = (Employee) session.get(\"com.Olivia.hibernate.model.Employee\", new Long(2));\r\n\r\n\/\/ \u4f7f\u7528\u7c7b\u540d\u5b57\u7b26\u4e32\u4f5c\u4e3a\u53c2\u6570\u7684load()\u65b9\u6cd5\r\nEmployee emp1 = (Employee) session.load(\"com.Olivia.hibernate.model.Employee\", new Long(1));\r\n\r\n\/\/ \u4f7f\u7528\u5df2\u5b58\u5728\u7684\u5bf9\u8c61\u4f5c\u4e3a\u53c2\u6570\u7684load()\u65b9\u6cd5\r\nEmployee emp2 = new Employee();\r\nsession.load(emp1, new Long(1));\r\n<\/code><\/pre>\n<p>\u5728LockOptions\u53c2\u6570\u4e2d\u8fd8\u6709\u5176\u4ed6\u65b9\u6cd5\uff0c\u4f46\u6211\u6ca1\u7528\u8fc7\u5b83\u4eec\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u6211\u4eec\u9700\u8981\u628a\u5b8c\u6574\u7684\u7c7b\u540d\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u3002\u6839\u636e\u4e0a\u8ff0\u89e3\u91ca\uff0cget()\u548cload()\u4e4b\u95f4\u6709\u4ee5\u4e0b\u51e0\u70b9\u533a\u522b\u3002<\/p>\n<ol>\n<li>get()\u8c03\u7528\u65f6\u4f1a\u7acb\u5373\u52a0\u8f7d\u6570\u636e\uff0c\u800cload()\u8fd4\u56de\u4e00\u4e2a\u4ee3\u7406\u5bf9\u8c61\uff0c\u5728\u9700\u8981\u65f6\u624d\u52a0\u8f7d\u6570\u636e\uff0c\u56e0\u6b64load()\u66f4\u597d\uff0c\u56e0\u4e3a\u5b83\u652f\u6301\u5ef6\u8fdf\u52a0\u8f7d\u3002<\/li>\n<li>\u7531\u4e8eload()\u5728\u627e\u4e0d\u5230\u6570\u636e\u65f6\u4f1a\u629b\u51fa\u5f02\u5e38\uff0c\u6211\u4eec\u5e94\u8be5\u53ea\u5728\u786e\u5b9a\u6570\u636e\u5b58\u5728\u65f6\u4f7f\u7528\u5b83\u3002<\/li>\n<li>\u5f53\u6211\u4eec\u60f3\u786e\u4fdd\u6570\u636e\u5e93\u4e2d\u5b58\u5728\u6570\u636e\u65f6\uff0c\u5e94\u8be5\u4f7f\u7528get()\u3002<\/li>\n<\/ol>\n<p>\u5173\u4e8eHibernate\u7684\u83b7\u53d6\u548c\u52a0\u8f7d\u65b9\u6cd5\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\uff0c\u5e0c\u671b\u80fd\u591f\u89e3\u7b54\u4e00\u4e9b\u7591\u95ee\uff0c\u5e76\u5e2e\u52a9\u4f60\u5728\u4e0d\u540c\u7684\u60c5\u51b5\u4e0b\u51b3\u5b9a\u4f7f\u7528\u54ea\u79cd\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hibernate Session\u63d0\u4f9b\u4e86\u4ece\u6570\u636e\u5e93\u4e2d\u83b7\u53d6\u6570\u636e\u7684\u4e0d\u540c\u65b9\u6cd5\u3002\u5176\u4e2d\u4e24\u4e2a\u65b9\u6cd5\u662fget()\u548cload()\u3002 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2076,981,2075],"class_list":["post-771","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-getload","tag-hibernate","tag-session"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Hibernate Session\u4e2dget()\u4e0eload()\u65b9\u6cd5\u533a\u522b\u8be6\u89e3\uff1a\u9644\u5e26\u5b9e\u4f8b\u5bf9\u6bd4 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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