java - ORM 过程中类名重要吗？

Question

我定义了3个类，如下:我尝试在 MySQL 中生成架构。它不会成功。但有线的事情是在我重命名一个类之后，CerifLink--->MyLink，它起作用了。

谁能给个合理的解释吗？

    package org.epos.grdb.jpa.entity;

        import java.io.Serializable;

        import javax.persistence.ConstraintMode;
        import javax.persistence.Entity;
        import javax.persistence.ForeignKey;
        import javax.persistence.Id;
        import javax.persistence.JoinColumn;
        import javax.persistence.JoinColumns;
        import javax.persistence.ManyToOne;

        @Entity
        public class CerifLink implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = -9162577962410473641L;
    @Id
    @ManyToOne
    @JoinColumns(value = { @JoinColumn(referencedColumnName = "id"),
            @JoinColumn(referencedColumnName = "cfid") }, foreignKey = @ForeignKey(value = ConstraintMode.CONSTRAINT, foreignKeyDefinition = "foreign key (`cfClassId`) references `cfClass` (`cfClassId`)"))
    private Class clazz;

    public Class getClazz() {
        return clazz;
    }

    public void setClazz(Class clazz) {
        this.clazz = clazz;
    }

}

package org.epos.grdb.jpa.entity;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class MyEntity implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 5185624925049306788L;
    @Id
    protected String id;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }
}
package org.epos.grdb.jpa.entity;

import java.io.Serializable;

import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;

@Entity
public class Class implements Serializable {

    /**
     * 
     */
    private static final long serialVersionUID = 1573828246619342971L;
    @Id
    protected String id;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    @Id
    @ManyToOne
    @JoinColumn(name = "cfid", referencedColumnName = "id")
    private MyEntity classSchema;

    public MyEntity getClassSchema() {
        return classSchema;
    }

    public void setClassSchema(MyEntity classSchema) {
        this.classSchema = classSchema;
    }

}

但有线的事情是在我重命名一个类之后，CerifLink--->MyLink，它起作用了。

谁能给个合理的解释吗？

Answer 1

是的，类名很重要，你应该检查Hibernate的NamingStrategy，你可以根据你使用的hibernate版本修改它，但是你在做什么我想你可以使用注释表并分配一个特定的名称

@Table(name = "我的名字")