使用Hibernate将嵌套的JSON数据保存到MySQL数据库中

如注释中所述，您可以按以下方式修改代码以使其按预期工作。

MarketPrice.java

@Entity@Table(name = "MarketPrice")public class MarketPrice {@Id@GeneratedValue(strategy = GenerationType.AUTO)@Column(name = "itemId")private Long itemId;@Column(name = "analysisDate")private Date analysisDate;@Column(name = "marketName")private String marketName;@Column(name = "category")private String category;@Column(name = "marketPlace")private String marketPlace;@Column(name = "state")private String state;@Column(name = "district")private String district; @Transient public Items currentItem;@Column(name = "itemName")public String getItemName() {    return this.currentItem.itemName;}@Column(name = "unitofPrice")public String getUnitofPrice() {    return this.currentItem.unitofPrice;}@Column(name = "minimumPrice",columnDefinition = "Float(10,2)")public Float getMinimumPrice() {    return this.currentItem.minimumPrice;}@Column(name = "maximumPrice",columnDefinition = "Float(10,2)")public Float getMaximumPrice() {    return this.currentItem.maximumPrice;}@Transientpublic ArrayList<Items> marketPrices;

Items.java

public class Items implements Serializable {    private static final long serialVersionUID = -2428562977284114465L;    @Id    @Column(name="id")    private int id;    public String itemName;    public String unitofPrice;    public Float minimumPrice;    public Float maximumPrice;

DAO.java

public String saveListOfMarketPrice(MarketPrice marketPrice) {        System.out.println("In Analyser DAO fro bulk saving");        final Session session = getSession();        session.beginTransaction();        for (Items item : marketPrice.marketPrices) {marketPrice.currentItem = item;session.save(marketPrice);        }        session.getTransaction().commit();        session.close();        return "success";    }