锘??xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>&#x6B27;&#x7F8E;&#x4E00;&#x533A;&#x4E8C;&#x533A;&#x4E09;&#x533A;&#x56DB;&#x533A;&#x591C;&#x591C;&#x5927;&#x7247;&#x2C;&#x4E45;&#x4E45;&#x4EBA;&#x4EBA;&#x8D85;&#x78B0;&#x7CBE;&#x54C1;&#x2C;&#x7537;&#x4EBA;&#x5929;&#x5802;&#x4E9A;&#x6D32;&#x5929;&#x5802;</title><link>http://www.aygfsteel.com/hijeff/category/21098.html</link><description /><language>zh-cn</language><lastBuildDate>Fri, 30 Mar 2007 03:13:46 GMT</lastBuildDate><pubDate>Fri, 30 Mar 2007 03:13:46 GMT</pubDate><ttl>60</ttl><item><title>浠婂ぉ閬囧埌涓�涓敤Annotation璁劇疆mapping鐨勯敊璇?...</title><link>http://www.aygfsteel.com/hijeff/archive/2007/03/29/107323.html</link><dc:creator>hijeff</dc:creator><author>hijeff</author><pubDate>Thu, 29 Mar 2007 12:28:00 GMT</pubDate><guid>http://www.aygfsteel.com/hijeff/archive/2007/03/29/107323.html</guid><wfw:comment>http://www.aygfsteel.com/hijeff/comments/107323.html</wfw:comment><comments>http://www.aygfsteel.com/hijeff/archive/2007/03/29/107323.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.aygfsteel.com/hijeff/comments/commentRss/107323.html</wfw:commentRss><trackback:ping>http://www.aygfsteel.com/hijeff/services/trackbacks/107323.html</trackback:ping><description><![CDATA[
<p>浠婂ぉ璋冭瘯紼嬪簭鐨勬椂鍊欙紝鍙戠幇鎻掑叆鏁版嵁鏃惰�佹槸鎶涘嚭寮傚父錛?a different object with the same identifier value was already associated with the session"</p>
<p>璧峰垵浠ヤ負鏄痮verride hashCode()鐨勬柟娉曚笉瀵廣�傚悗鏉oogle鏌ヤ簡鏌ュ鏁伴棶棰橀兘鍑虹幇鍦╠etached瀵硅薄涔嬪悗錛屽啀閾炬帴session鐢變簬瀵硅薄鐨勬敼鍙樿�屽嚭鐜扮殑寮傚父銆?/p>
<p>鏈�鍚庡彂鐜板師鏉ラ棶棰樺緢綆�鍗?...鏄湪鐢╝nnotation閲嶅啓mapping鐨勬椂鍊欙紝蹇樿緇橜Id鍔犱笂@GeneratedValue錛屽鑷寸涓�涓猺ow insert鍚庯紝鍐嶆insert鏃舵病鏈夌敓鎴愭柊鐨刬d錛?/p>
<p>鐪嬫潵annotation铏界劧鏂逛究浜唌apping錛屼絾鐢變簬鍜屼唬鐮侀泦涓湪涓�鍧椾簡錛屽緢瀹規槗鍑虹幇鐤忓拷澶ф剰鐨勯敊璇紝鑰屼笖涓�鑸兘涓嶄細娉ㄦ剰鍒?.-</p>
<p>鎯寵搗浜唒ython鐨凷QLObject, SQLAlchemy錛岃櫧鐒跺姛鑳芥病鏈塇ibernate涓板瘜錛屼絾鏄畝鍗曞疄鐢紒</p>
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