{"id":1717,"date":"2010-06-04T21:32:15","date_gmt":"2010-06-04T13:32:15","guid":{"rendered":"\/?p=1717"},"modified":"2010-06-04T21:32:15","modified_gmt":"2010-06-04T13:32:15","slug":"1717","status":"publish","type":"post","link":"https:\/\/www.justzz.com\/spec\/1717.html","title":{"rendered":"Hibernate\u4e32\u8bb2\u7b14\u8bb0\u4e00"},"content":{"rendered":"<p><strong>\u4e00\u3001\u57fa\u7840\u77e5\u8bc6<\/strong><\/p>\n<p>1\u3001Hibernate\u662f\u5bf9\u8c61\/\u5173\u7cfb\u6620\u5c04(Object\/Relation Mapping)\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u662f\u4e00\u4e2a\u53ef\u4ee5\u81ea\u52a8\u7684\u6839\u636exml\u914d\u7f6e\u6587\u4ef6\u6765\u5b8c\u6210\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff0c\u5e76\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u7684\u5f00\u6e90\u7ec4\u4ef6\u3002<\/p>\n<p>2\u3001Hibernate\u67b6\u6784<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7697\" src=\"https:\/\/www.justzz.com\/spec\/wp-content\/uploads\/sites\/3\/2019\/10\/201064-21310187.jpg\" width=\"209\" height=\"233\" alt=\"201064-21310187\" \/><\/p>\n<p>POJO\u7c7b (plain old java object \u666e\u901aJava\u7c7b)<br \/>\nhibernate.cfg.xml<br \/>\n* .hbm.xml<\/p>\n<p>3\u3001Hibernate\u5e94\u7528<\/p>\n<p>\u8868\u7ed3\u6784<br \/>\n\u9700\u8981\u5bfc\u5165\uff1a<br \/>\n\u7c7b\u5e93 lib\uff1a\u00a0 hibernate3.jar\uff0cOjdbc14.jar\u7b49<\/p>\n<p>hibernate.cfg.xml\u914d\u7f6e\u6587\u4ef6\u8bbe\u7f6e\u91cd\u8981<br \/>\n\u7684\u57fa\u7840\u4fe1\u606f\uff1a\u8fde\u63a5\u6570\u636e\u5e93\u7684\u9a71\u52a8\u3001<br \/>\n\u7528\u6237\u540d\u3001\u5bc6\u7801\uff0c\u548c\u6620\u5c04\u6587\u4ef6\u8def\u5f84\u7b49\u3002<\/p>\n<p>4\u3001Hibernate\u7684\u4f18\u70b9\uff1a<\/p>\n<ul>\n<li>\u2460 \u4e0d\u9700\u8981\u4f9d\u8d56\u5bb9\u5668\u3001\u964d\u4f4e\u5f00\u53d1\u96be\u5ea6\uff0c\u51cf\u5c11\u4ee3\u7801\u91cf\uff0c\u5f00\u53d1\u5468\u671f\u6bd4\u8f83\u5feb\uff1b<br \/>\n\u2461 \u5c01\u88c5\u4e86JDBC\uff0c\u81ea\u52a8\u751f\u6210\u6548\u7387\u8f83\u9ad8\u7684SQL\u4ee3\u7801\uff1b<br \/>\n\u2462 \u63d0\u4f9b\u72b6\u6001\u7ba1\u7406\uff1b<br \/>\n\u2463 \u63d0\u4f9b\u4e86\u4e00\u4e2a\u9762\u5411\u5bf9\u8c61\u7684\u67e5\u8be2\u8bed\u8a00HQL\u3002<\/li>\n<\/ul>\n<p><strong>\u4e8c\u3001 \u51e0\u4e2a\u91cd\u8981\u7684\u7c7b<\/strong><\/p>\n<p>Configuration\u7c7b\u00a0 \uff08\u8d1f\u8d23\u7ba1\u7406Hibernate\u7684\u914d\u7f6e\u4fe1\u606f\uff09<\/p>\n<p>\u5f53\u521b\u5efaSessionFactory\u65f6\uff0cConfiguration\u5b9e\u4f8b\u53ef\u4ee5\u6307\u5b9a\u4f7f\u7528\u54ea\u4e00\u4e2a\u6620\u5c04\u6587\u6321\u3002\u5e94\u7528\u7a0b\u5e8f\u901a\u5e38\u53ea\u662f\u521b\u5efa\u4e00\u4e2aConfiguration\u5b9e\u4f8b\uff0c\u5e76\u901a\u8fc7\u5b83\u521b\u5efa\u4e00\u4e2aSessionFactory\u5b9e\u4f8b\u3002<\/p>\n<p>SessionFactory\u7c7b \uff08\u8d1f\u8d23\u521b\u5efaSession\u5b9e\u4f8b\uff09<\/p>\n<p>\u5b83\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u53ef\u4ee5\u88ab\u591a\u7ebf\u7a0b\u8c03\u7528\u4ee5\u53d6\u5f97Session\uff0c\u800c\u4e14\u6784\u9020SessionFactory\u5f88\u6d88\u8017\u8d44\u6e90\uff0c\u6240\u4ee5\u591a\u6570\u60c5\u51b5\u4e0b\u4e00\u4e2a\u5e94\u7528\u4e2d\u53ea\u521d\u59cb\u5316\u4e00\u4e2aSessionFactory\uff0c\u4e3a\u4e0d\u540c\u7684\u7ebf\u7a0b\u63d0\u4f9bSession\u3002<\/p>\n<p>Session\u7c7b<\/p>\n<p>Session\u662fHibernate\u8fd0\u4f5c\u7684\u4e2d\u5fc3\uff0c\u5bf9\u8c61\u7684\u751f\u547d\u5468\u671f\u3001\u4e8b\u52a1\u7684\u7ba1\u7406\u3001\u6570\u636e\u5e93\u7684\u5b58\u53d6\u90fd\u4e0eSession\u606f\u606f\u76f8\u5173\u3002Session\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\uff0c\u591a\u4e2a\u6267\u884c\u7ebf\u7a0b\u5171\u4eab\u4e00\u4e2aSession\uff0c\u5c06\u4f1a\u53d1\u751f\u6570\u636e\u5171\u4eab\u800c\u53d1\u751f\u6df7\u4e71\u95ee\u9898\u3002\u4e3a\u4e86\u89e3\u51b3\u6b64\u95ee\u9898\uff0c\u53ef\u4ee5\u91c7\u7528ThreadLocal\u53d8\u91cf\uff0c\u4f7f\u7528\u5b83\u53ef\u4ee5\u6709\u6548\u9694\u79bb\u6267\u884c\u6240\u4f7f\u7528\u7684\u6570\u636e\uff0c\u4e5f\u5c31\u907f\u5f00\u4e86Session\u7684\u591a\u7ebf\u7a0b\u4e4b\u95f4\u7684\u6570\u636e\u5171\u4eab\u95ee\u9898\u3002<\/p>\n<p><strong>\u5982\u4f55\u8c03\u7528hibernate API\uff1f<\/strong><\/p>\n<p>1\u3001\u521b\u5efaConfiguration\u5bf9\u8c61\u3002\uff08\u89e3\u6790\u914d\u7f6e\u6587\u4ef6\uff09<\/p>\n<p>Configuration config = new Configuration();<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7698\" src=\"https:\/\/www.justzz.com\/spec\/wp-content\/uploads\/sites\/3\/2019\/10\/201064-213113109.jpg\" width=\"222\" height=\"115\" alt=\"201064-213113109\" \/><\/p>\n<p>2\u3001\u901a\u8fc7Configuration\u521b\u5efaSession Factory (\u7ebf\u7a0b\u5b89\u5168\u7684\u91cd\u91cf\u7ea7\u7ec4\u4ef6)\u3002<\/p>\n<p>config = config.configure(); \/\/configure()\u65b9\u6cd5\u4f1a\u5728CLASSPATH\u4e0b\u5bfb\u627ehibernate.cfg.xml<\/p>\n<p>SessionFactory sessionFactory = config.buildSessionFactory(); \/\/\u521b\u5efaSessionFactory\u5bf9\u8c61<\/p>\n<p>3\u3001\u901a\u8fc7SessionFactory\u521b\u5efaSession\u4f1a\u8bdd\u5bf9\u8c61\u3002<\/p>\n<p>Session session = sessionFactory.openSession();\u00a0\/\/\u521b\u5efaSession\u5bf9\u8c61<\/p>\n<p>4\u3001\u901a\u8fc7Session\u53d6\u5f97\u4e8b\u52a1\u5bf9\u8c61\u3002<\/p>\n<p>Transaction trans \uff1d session.beginTransaction();\u00a0\u00a0\u00a0 \/\/\u5f00\u59cb\u4e8b\u52a1<\/p>\n<p>5\u3001\u901a\u8fc7session\u4e0e\u6570\u636e\u5e93\u8fdb\u884c\u4f1a\u8bdd\u3002<\/p>\n<ul>\n<li>session.save(object o);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u589e<br \/>\nsession.delete(object o);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u5220<br \/>\nsession.update(object o);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u6539<br \/>\nsession.get (Class clazz, Serializable id);\u00a0 \/\/\u6839\u636eId\u67e5\u627e\u5bf9\u8c61<br \/>\nsession.createQuery(String sql);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u81ea\u5df1\u62fcHQL\u8bed\u8a00\u67e5\u627e\u5bf9\u8c61\u8fd4\u56de\u4e00\u4e2aQuery\u5bf9\u8c61\u3002<\/li>\n<\/ul>\n<p>6\u3001\u63d0\u4ea4\u64cd\u4f5c\uff0c\u7ed3\u675f\u4e8b\u52a1\u3002<\/p>\n<p>Trans.commit();<\/p>\n<p>7\u3001\u5173\u95edSession<\/p>\n<p>session.close();<\/p>\n<p>\u6ce8\uff1a\u7b2c\u4e00\u6b65\u548c\u7b2c\u4e8c\u6b65\u4e00\u822c\u653e\u5728\u9759\u6001\u521d\u59cb\u5316\u4ee3\u7801\u5757\u4e2d\u6267\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u57fa\u7840\u77e5\u8bc6 1\u3001Hibernate\u662f\u5bf9\u8c61\/\u5173\u7cfb\u6620\u5c04(Object\/Relation Mapping)\u7684\u89e3\u51b3\u65b9\u6848\uff0c\u662f\u4e00\u4e2a\u53ef\u4ee5\u81ea\u52a8\u7684\u6839\u636exml\u914d\u7f6e\u6587\u4ef6\u6765\u5b8c\u6210\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff0c\u5e76\u6301\u4e45\u5316\u5230\u6570\u636e\u5e93\u7684\u5f00\u6e90\u7ec4\u4ef6\u3002 2\u3001Hibernate\u67b6\u6784 POJO\u7c7b (plain&hellip;<\/p>\n","protected":false},"author":13,"featured_media":7698,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-1717","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-t"],"_links":{"self":[{"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/posts\/1717","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/users\/13"}],"replies":[{"embeddable":true,"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/comments?post=1717"}],"version-history":[{"count":0,"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/posts\/1717\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/media\/7698"}],"wp:attachment":[{"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/media?parent=1717"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/categories?post=1717"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.justzz.com\/spec\/wp-json\/wp\/v2\/tags?post=1717"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}