鍦℉ibernate涓紝浣跨敤娉ㄨВ閰嶇疆涓€瀵瑰鍏崇郴闇€瑕佷娇鐢ˊOneToMany娉ㄨВ銆備笅闈㈡槸涓€涓ず渚嬶細

鍋囪鏈変袱涓疄浣撶被锛屼竴涓槸Customer绫伙紝鍙︿竴涓槸Order绫伙紝涓€涓【瀹㈠彲浠ユ嫢鏈夊涓鍗曘€傚湪Customer绫讳腑閰嶇疆涓€瀵瑰鍏崇郴濡備笅锛?/p>

@Entity
@Table(name = "customers")
public class Customer {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String name;

    @OneToMany(mappedBy = "customer", cascade = CascadeType.ALL)
    private Set<Order> orders;

    // 鐪佺暐getter鍜宻etter鏂规硶
}

鍦∣rder绫讳腑閰嶇疆澶氬涓€鍏崇郴濡備笅锛?/p>

@Entity
@Table(name = "orders")
public class Order {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    private String item;

    @ManyToOne
    @JoinColumn(name = "customer_id")
    private Customer customer;

    // 鐪佺暐getter鍜宻etter鏂规硶
}

鍦–ustomer绫讳腑浣跨敤@OneToMany娉ㄨВ锛屾寚瀹氫簡mappedBy灞炴€т负"customer"锛岃〃绀篛rder绫讳腑鐨刢ustomer灞炴€х淮鎶や簡鍏宠仈鍏崇郴銆傚悓鏃惰繕浣跨敤浜哻ascade灞炴€ц缃骇鑱旀搷浣滐紝褰撳垹闄ら【瀹㈡椂锛屽悓鏃跺垹闄ょ浉鍏崇殑璁㈠崟銆?/p>

鍦∣rder绫讳腑浣跨敤@ManyToOne娉ㄨВ锛屾寚瀹氫簡JoinColumn灞炴€т负"customer_id"锛岃〃绀鸿灞炴€у湪鏁版嵁搴撲腑瀵瑰簲鐨勫閿垪鍚嶃€傝繖鏍峰氨寤虹珛浜咰ustomer绫诲拰Order绫讳箣闂寸殑涓€瀵瑰鍏崇郴銆?/p>

娉ㄦ剰锛氫互涓婄ず渚嬩腑浣跨敤浜咢Entity銆丂Table銆丂Id鍜孈GeneratedValue娉ㄨВ閰嶇疆瀹炰綋绫诲拰涓婚敭鐢熸垚绛栫暐锛岃繖浜涙槸Hibernate鐨勫熀鏈敞瑙ｉ厤缃紝濡傛灉浣犺繕涓嶇啛鎮夛紝鍙互鍏堝涔犱竴涓嬨€?/p>