当我有@ManyTomany时如何设置ForeignKey名称

Question

我正在使用JPA类创建数据库。

如果我们有许多对一个关系，我们可以重写ForeignKey name name，如下所示：

@ManyToOne
@JoinColumn(foreignKey = @ForeignKey(name = "FK_COUNTRY"))
private Country country;

以DB为单位，我们会有这样一个结果：

@ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.LAZY)
@JoinTable(name = "NEW_TABLE",  foreignKey = @ForeignKey(name = "FK_TEST"))

@JoinTable(
        name="NEW_TABLE",
        joinColumns=
            @JoinColumn(name="ID1", referencedColumnName="ID",  foreignKey = @ForeignKey(name = "FK_DEV_ID")),
        inverseJoinColumns=ID2", referencedColumnName="ID", foreignKey = @ForeignKey(name = "FK_DEV_ZONE"))
    )  

@ManyToMany(cascade = CascadeType.PERSIST)
@JoinTable(name="NEW_TABLE_2",
            joinColumns=
                @JoinColumn(name="ID1", referencedColumnName="ID", 
                            foreignKey = @ForeignKey(name = "FK_1")
                ),
            inverseJoinColumns=
                @JoinColumn(name="ID2", referencedColumnName="ID", 
                            foreignKey = @ForeignKey(name = "FK_2")
                ),

            foreignKey = @ForeignKey(name = "FK_1"),
            inverseForeignKey = @ForeignKey(name = "FK_2")
    )  

private List<MyObject> deviceZones;

我使用这个版本的JARS：

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-entitymanager</artifactId>
    <version>4.3.6.Final</version>
</dependency>

<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-core</artifactId>
    <version>4.3.6.Final</version>
</dependency>

<dependency>
    <groupId>org.hibernate.common</groupId>
    <artifactId>hibernate-commons-annotations</artifactId>
    <version>4.0.5.Final</version>
</dependency>


<dependency>
    <groupId>org.hibernate</groupId>
    <artifactId>hibernate-validator</artifactId>
    <version>5.1.2.Final</version>
</dependency>

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-jdbc</artifactId>
    <version>4.0.6.RELEASE</version>
</dependency>

我的java版本是1.8

Answer 1

我猜你有一些罐子冲突。我建议这样做：

1. 删除以下JAR:hibernate-commons-annotations和hibernate-entitymanager
2. 然后查看以下内容，您可以如何更改外键的名称