org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.jav
錯誤原因： 原因是在hibernate映射關係中由於延遲加載，session在調用前已經被關閉，所以加載set屬性時無可用session 解決方案1(使用的是註解配置)： 在 @ManyToOne端設置fetch=FetchType.LAZY,@OneToMany端設置fetch=FetchType.EAGER，如下配置 @ManyToOne(cascade={CascadeType.REFRES
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