C#
NHibernate:could not initialize a collection
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我也要 关注 + 加入社区报错场景是这样的：数据库有两个表：InstructionOrder和InstructionOrderLine，是一对多的关系，InstructionOrderLine有外键head_id，head_id是InstructionOrder的主键id，我读取InstructionOrder的数据，然后将其插入到另外一个数据库中，然后偶尔就会报以下错误，但是第二次又会处理成功，一直没找到原因，错误信息如下：could not initialize a collection: [InstructionOrder.InstructionOrderLineshead_#41909][SQL: SELECT instructio0_.head_id as head18_1_, instructio0_.id as id1_, instructio0_.id as id39_0_, instructio0_.part_code as part2_39_0_, instructio0_.part_name as part3_39_0_, instructio0_.category as category39_0_, instructio0_.repair_property as repair5_39_0_, instructio0_.length as length39_0_, instructio0_.width as width39_0_, instructio0_.high as high39_0_, instructio0_.weight as weight39_0_, instructio0_.price as price39_0_, instructio0_.plan_qty as plan11_39_0_, instructio0_.act_qty as act12_39_0_, instructio0_.business_line_id as business13_39_0_, instructio0_.remark as remark39_0_, instructio0_.second_category as second15_39_0_, instructio0_.line_status as line16_39_0_, instructio0_.business_line_code as business17_39_0_, instructio0_.head_id as head18_39_0_ FROM InstructionOrderLine instructio0_ WHERE instructio0_.head_id=?]
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