SELECT m.FNUMBER as id, m.FNAME_L2 as name, d.FNAME_L2 as unit, m.FMODEL as model FROM PONYPUNI3.T_BD_MATERIALPURCHASING mp INNER JOIN PONYPUNI3.T_BD_MATERIAL m ON m.FID = mp.FMATERIALID LEFT OUTER JOIN PONYPUNI3.T_BD_MeasureUnit d on m.fbaseunit=d.fid WHERE mp.FSTATUS = 1 AND m.FSTATUS = 1 AND mp.FORGUNIT=:org AND ( m.FNUMBER LIKE :keyword OR m.FNAME_L2 LIKE :keyword OR m.FMODEL LIKE :keyword ) 怎么用spring jpa @JoinColumn实现

要使用Spring JPA的@JoinColumn注解实现上述查询，你需要进行以下步骤：

1. 创建一个实体类，映射到数据库中的表PONYPUNI3.T_BD_MATERIALPURCHASING。示例代码如下：

@Entity
@Table(name = "PONYPUNI3.T_BD_MATERIALPURCHASING")
public class MaterialPurchasing {
    @Id
    @Column(name = "FID")
    private Long id;

    @OneToOne
    @JoinColumn(name = "FMATERIALID")
    private Material material;

    // 添加其他属性对应数据库字段

    // 添加对应的getter和setter方法
}

2. 创建一个实体类，映射到数据库中的表PONYPUNI3.T_BD_MATERIAL。示例代码如下：

@Entity
@Table(name = "PONYPUNI3.T_BD_MATERIAL")
public class Material {
    @Id
    @Column(name = "FID")
    private Long id;

    @Column(name = "FNUMBER")
    private String number;

    @Column(name = "FNAME_L2")
    private String name;

    @Column(name = "FMODEL")
    private String model;

    @OneToOne(mappedBy = "material")
    private MaterialPurchasing materialPurchasing;

    @OneToOne
    @JoinColumn(name = "FBASEUNIT")
    private MeasureUnit baseUnit;

    // 添加其他属性对应数据库字段

    // 添加对应的getter和setter方法
}

3. 创建一个实体类，映射到数据库中的表PONYPUNI3.T_BD_MeasureUnit。示例代码如下：

@Entity
@Table(name = "PONYPUNI3.T_BD_MeasureUnit")
public class MeasureUnit {
    @Id
    @Column(name = "FID")
    private Long id;

    @Column(name = "FNAME_L2")
    private String name;

    // 添加其他属性对应数据库字段

    // 添加对应的getter和setter方法
}

4. 创建一个Spring Data JPA的Repository接口，用于对数据库表PONYPUNI3.T_BD_MATERIALPURCHASING进行操作。示例代码如下：

@Repository
public interface MaterialPurchasingRepository extends JpaRepository<MaterialPurchasing, Long> {
    List<MaterialPurchasing> findByStatusAndOrgUnitAndMaterialInfoContaining(int status, String org, String keyword);
}

5. 在你的服务类中注入MaterialPurchasingRepository，并调用findByStatusAndOrgUnitAndMaterialInfoContaining方法进行查询。示例代码如下：

@Service
public class MaterialService {
    private final MaterialPurchasingRepository materialPurchasingRepository;

    public MaterialService(MaterialPurchasingRepository materialPurchasingRepository) {
        this.materialPurchasingRepository = materialPurchasingRepository;
    }

    public List<MaterialPurchasing> searchMaterialInfo(String org, String keyword) {
        int status = 1;
        return materialPurchasingRepository.findByStatusAndOrgUnitAndMaterialInfoContaining(status, org, keyword);
    }
}

请确保在Spring Boot项目中已经正确配置了数据库连接和JPA相关的配置。这样就可以使用Spring JPA的@JoinColumn注解实现上述查询了。