hibernate - 如何在 Spring Boot JPA 中加入两个表，我的代码出错了

Question

嗨，我想从 oracle 加入我的表，如何加入这个表？我正在使用 jpa 在 spring boot 上加入我的表。这是我的代码：

package com.emerio.rnd.bali.oraclemongoservice.entity;

import java.io.Serializable;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import com.emerio.rnd.bali.oraclemongoservice.entity.TblmFormManagement;


@Table(name = "TBLM_FORM")
@Entity
public class TblmForm{

    // @Column(name = "PKID")
    @Id
    private Long pkid;
    // @Column(name = "FORMCODE")
    private String formcode;

    @OneToOne(cascade=CascadeType.ALL, mappedBy="TblmFormManagement")
    private TblmFormManagement tblmFormManagement;



    public TblmFormManagement getTblmFormManagement(){
        return tblmFormManagement;
    }

    public void setMapping(TblmFormManagement tblmFormManagement){
        this.tblmFormManagement=tblmFormManagement;
    }


    // @Column(name = "REPORTITEM")
    // private String reportitem;
    // @Column(name = "REPORTFIELD")
    // private String reportfield;

    public TblmForm() {
    }

    public Long getPkid() {
        return this.pkid;
    }

    public void setPkid(Long pkid) {
        this.pkid = pkid;
    }

    public String getFormcode() {
        return this.formcode;
    }

    public void setFormcode(String formcode) {
        this.formcode = formcode;
    }

    // public String getReportitem() {
    //     return this.reportitem;
    // }

    // public void setReportitem(String reportitem) {
    //     this.reportitem = reportitem;
    // }

    // public String getReportfield() {
    //     return this.reportfield;
    // }

    // public void setReportfield(String reportfield) {
    //     this.reportfield = reportfield;
    // }
    // @OneToOne(mappedBy = "tblmForm")
    // public Mapping getMapping() {
    //     return mapping;
    // }

    // public void setBook(Mapping mapping) {
    //     this.mapping = mapping;
    // }

}

我的第二个实体：

package com.emerio.rnd.bali.oraclemongoservice.entity;

import java.io.Serializable;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Table;

@Table(name = "TBLM_FORMMANAGEMENT")
@Entity
public class TblmFormManagement{


    // @OneToOne(mappedBy = "mapping")
    @Id
    private Long pkid;
    private String formcode;
    private String reportitem;
    private String reportfield;

    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "pkid", nullable=true)
    private TblmForm tblmForm;


    public TblmForm getTblmForm() {
        return tblmForm;
    }

    public void setTblmForm(TblmForm tblmForm) {
        this.tblmForm = tblmForm;
    }


    public TblmFormManagement() {
    }



    public Long getPkid() {
        return this.pkid;
    }

    public void setPkid(Long pkid) {
        this.pkid = pkid;
    }

    public String getFormcode() {
        return this.formcode;
    }

    public void setFormcode(String formcode) {
        this.formcode = formcode;
    }

    public String getReportitem() {
        return this.reportitem;
    }

    public void setReportitem(String reportitem) {
        this.reportitem = reportitem;
    }

    public String getReportfield() {
        return this.reportfield;
    }

    public void setReportfield(String reportfield) {
        this.reportfield = reportfield;
    }

    // @OneToOne(cascade = CascadeType.ALL)
    // @JoinColumn(name = "pkid")



}

我收到错误：

上下文初始化期间遇到异常 - 取消刷新尝试：org.springframework.beans.factory.BeanCreationException：在类路径资源 [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class] 中定义名称为“entityManagerFactory”的 bean 创建错误: init 方法调用失败；嵌套异常是 org.hibernate.AnnotationException: Unknown mappedBy in: com.emerio.rnd.bali.oraclemongoservice.entity.TblmForm.tblmFormManagement，引用属性未知：com.emerio.rnd.bali.oraclemongoservice.entity.TblmFormManagement.Mapping

有什么想法可以解决我的问题吗？谢谢你

标签： hibernatejpahibernate-mappingbidirectional

Answer 1

尝试这个。

package com.emerio.rnd.bali.oraclemongoservice.entity;

    import java.io.Serializable;

    import javax.persistence.CascadeType;
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.Id;
    import javax.persistence.OneToOne;
    import javax.persistence.Table;
    import com.emerio.rnd.bali.oraclemongoservice.entity.TblmFormManagement;


    @Table(name = "TBLM_FORM")
    @Entity
    public class TblmForm{


        @Id
        private Long pkid;

        @Column(name = "FORMCODE")
        private String formcode;

        @OneToOne(cascade=CascadeType.ALL, mappedBy="tblmForm")
        private TblmFormManagement tblmFormManagement;



        public TblmFormManagement getTblmFormManagement(){
            return tblmFormManagement;
        }

        public void setMapping(TblmFormManagement tblmFormManagement){
            this.tblmFormManagement=tblmFormManagement;
        }

       public Long getPkid() {
            return this.pkid;
        }

        public void setPkid(Long pkid) {
            this.pkid = pkid;
        }

        public String getFormcode() {
            return this.formcode;
        }

        public void setFormcode(String formcode) {
            this.formcode = formcode;
        }

.

package com.emerio.rnd.bali.oraclemongoservice.entity;

import java.io.Serializable;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.Table;

@Table(name = "TBLM_FORMMANAGEMENT")
@Entity
public class TblmFormManagement{



    @Id
    private Long pkid;
    private String formcode;
    private String reportitem;
    private String reportfield;

    @OneToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "pkid", nullable=true)
    private TblmForm tblmForm;


    public TblmForm getTblmForm() {
        return tblmForm;
    }

    public void setTblmForm(TblmForm tblmForm) {
        this.tblmForm = tblmForm;
    }


    public TblmFormManagement() {
    }



    public Long getPkid() {
        return this.pkid;
    }

    public void setPkid(Long pkid) {
        this.pkid = pkid;
    }

    public String getFormcode() {
        return this.formcode;
    }

    public void setFormcode(String formcode) {
        this.formcode = formcode;
    }

    public String getReportitem() {
        return this.reportitem;
    }

    public void setReportitem(String reportitem) {
        this.reportitem = reportitem;
    }

    public String getReportfield() {
        return this.reportfield;
    }

    public void setReportfield(String reportfield) {
        this.reportfield = reportfield;
    }

    // @OneToOne(cascade = CascadeType.ALL)
    // @JoinColumn(name = "pkid")



}