JPA复合主键源码案例 - 数据库编程

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@Entity @Table(name = "RELEASE_INFO_ELEMENT") public class ReleaseInfoElement { @EmbeddedId private PK pk = new PK(); @Column(name = "VALUE") private String value; public Long getInfoId() { return pk.infoId; } public void setInfoId(Long infoId) { pk.infoId = infoId; } public Long getParamId() { return pk.paramId; } @Override public String toString() { return "ReleaseInfoElement [infoId=" + pk.infoId + ", paramId=" + pk.paramId + ", value=" + value + "]"; } public void setParamId(Long paramId) { pk.paramId = paramId; } public String getValue() { return value; } public void setValue(String value) { this.value = value; } @Embeddable public static class PK implements Serializable { @Column(name = "INFO_ID") private Long infoId; @Column(name = "PARAM_ID") private Long paramId; public PK() { super(); } } }