{"author_name":"samehada3","url":"https://samehada3.hatenadiary.org/entry/20070405/1175699917","height":"190","author_url":"https://blog.hatena.ne.jp/samehada3/","provider_name":"Hatena Blog","image_url":null,"width":"100%","type":"rich","categories":["Java","JPA"],"title":"\u66f4\u65b0\u306e\u30e1\u30e2","blog_url":"https://samehada3.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsamehada3.hatenadiary.org%2Fentry%2F20070405%2F1175699917\" title=\"\u66f4\u65b0\u306e\u30e1\u30e2 - samehada3\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2007-04-05 00:18:37","version":"1.0","provider_url":"https://hatena.blog","blog_title":"samehada3\u306e\u65e5\u8a18","description":"\u660e\u793a\u7684\u306b\u66f4\u65b0\u30e1\u30bd\u30c3\u30c9\uff08EntityManager.merge()\uff09\u3092\u547c\u3073\u51fa\u3055\u306a\u3044\u66f4\u65b0\u3068\u3001\u66f4\u65b0\u30e1\u30bd\u30c3\u30c9\uff08EntityManager.merge()\uff09\u3092\u547c\u3073\u51fa\u3059\u66f4\u65b0\u306e\u52d5\u4f5c\u78ba\u8a8d\u3002 EntytyManager.merge() \u3092\u4f7f\u7528\u3057\u306a\u3044\u66f4\u65b0\uff08\u95a2\u9023\u30c6\u30fc\u30d6\u30eb\uff09 \u2190 \u3044\u3084\u524a\u9664\u30fb\u30fb\u30fb package sample; import java.util.ArrayList; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.EntityTr\u2026"}