{"provider_name":"Hatena Blog","title":"Spring\uff0bHibernateEntityManager\uff08@Required\u7de8\uff09","published":"2008-06-12 01:39:59","image_url":null,"width":"100%","blog_url":"https://beyondseeker.hatenadiary.org/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbeyondseeker.hatenadiary.org%2Fentry%2F20080612%2F1213202399\" title=\"Spring\uff0bHibernateEntityManager\uff08@Required\u7de8\uff09 - Be an Idealistic Realist\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"beyondseeker","blog_title":"Be an Idealistic Realist","provider_url":"https://hatena.blog","author_url":"https://blog.hatena.ne.jp/beyondseeker/","type":"rich","categories":["java","spring","hibernate","jpa"],"version":"1.0","height":"190","url":"https://beyondseeker.hatenadiary.org/entry/20080612/1213202399","description":"DI\u3057\u5fd8\u308c\u306b\u6ce8\u610f \u5b9f\u884c\u6642\u306b\u3001\u3044\u304d\u306a\u308a NullPointerException \u55b0\u3089\u3063\u3066\u3001\u305d\u308c\u304c\u5358\u306a\u308b bean \u3078\u306e DI \u3057\u5fd8\u308c\u3060\u3068\u30d8\u30b3\u307f\u307e\u3059\u3088\u306d\u3002\u305d\u3046\u3044\u3046\u3068\u304d\u306b\u306f\u3001@Required \u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u3063\u3066\u3001\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u8d77\u52d5\u6642\u306b DI \u306e\u629c\u3051\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u306c\u308b\u307d\u306e\u4f8b \u524d\u56de\u306e beans.xml \u306e userService bean \u306e\u8a2d\u5b9a\u304b\u3089\u3001\u3042\u3048\u3066 entityManager \u3078\u306e DI \u3092\u5916\u3057\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u52d5\u4f5c\u3055\u305b\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002 Exception in thread \"main\" java.lang.NullPointerException a\u2026"}