java - 以编程方式添加实体时出现 MappingNotFound 异常

Question

我需要动态地将实体类(注释驱动，没有 hbm 文件)添加到持久性中。

我尝试了以下方法来动态添加实体。

Configuration cfg = new Configuration()
                .addClass(org.entity.Person.class);

我收到 MappingNotFoundException:找不到映射(RESOURCE):org.entity.Person.hbm.xml

还有其他方法可以做到这一点吗？

我浏览了很多帖子，但没有找到解决问题的确切方法。非常感谢任何帮助。

Answer 1

addClass 方法查找映射文件

Read a mapping as an application resource using the convention that a class named foo.bar.Foo is mapped by a file foo/bar/Foo.hbm.xml which can be resolved as a classpath resource.

http://docs.jboss.org/hibernate/orm/5.2/javadocs/org/hibernate/cfg/Configuration.html#addClass-java.lang.Class-

如果你想添加带注释的类，你应该使用 addAnnotatedClass

 public Configuration addAnnotatedClass(Class annotatedClass)
 // Read metadata from the annotations associated with this class.
 Parameters:
    annotatedClass - The class containing annotations
 Returns:
    this (for method chaining)

例如:

 Configuration cfg = new Configuration()
            .addAnnotatedClass(org.entity.Person.class);