hibernate 注解1：M
A----->B(1:M)
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class? A{
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@OneToMany(mappedBy="alarmPlan",cascade=CascadeType.ALL)
private? List<B> blist;
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}
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class B{
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@ManyToOne(targetEntity=com.test.A.class,fetch= FetchType.Lazy,cascade=CascadeType.ALL)
@JoinColumn(name="B表关联A表的列名B_ID"，referColum)
Private A? a；
}
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hibernate? could not execute native bulk manipulation query
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主见产生重复时候
