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1 学生课程、分数的设计(重要)@Entitypublic class Student { private int id; private String name; private Set courses = new HashSet(); @ManyToMany ... 阅读全文
posted @ 2014-12-05 15:06
enjoy_clh
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1 树状结构的设计(至关重要)a) 在同—个类中使用One2Many和Many20ne@Entitypublic class Org { private int id; private String name; private Set children=new HashSet();... 阅读全文
posted @ 2014-12-05 13:35
enjoy_clh
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集合映射(不太重要)1 Set2 List (与Set差不多 多个@OrderBy) a) @OrderBy 排序private List users = new ArrayList(); @OneToMany(mappedBy="group", casca... 阅读全文
posted @ 2014-12-05 11:17
enjoy_clh
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