1：多对一配置
private Set<DrawRecordModel> cjrecordsSet = new HashSet<DrawRecordModel>(); 正确
private HashSet<DrawRecordModel> cjrecordsSet = new HashSet<DrawRecordModel>();错误
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1：多对一配置
private Set<DrawRecordModel> cjrecordsSet = new HashSet<DrawRecordModel>(); 正确
private HashSet<DrawRecordModel> cjrecordsSet = new HashSet<DrawRecordModel>();错误
转载于:https://www.cnblogs.com/coderdxj/p/6438141.html