J2EE deployment files (ejb-jar.xml)

<ejb-jar>
The ejb-jar element is the root element of the EJB deployment descriptor. It contains an optional description of the ejb-jar file, optional display name, optional small icon file name, optional large icon file name, mandatory structural information about all included enterprise beans, optional application-assembly descriptor, and an optional name of an ejb-client-jar file for the ejb-jar.
<description>A short description</description>
A short description.
<display-name>A name</display-name>
The display-name element contains a short name that is intended to be display by tools.
<small-icon>employee-service-icon16x16.jpg</small-icon>
The small-icon element contains the name of a file containing a small (16 x 16) icon image. The file name is relative path within the ejb-jar file. The image must be either in the JPEG or GIF format, and the file name must end with the suffix ".jpg" or ".gif" respectively. The icon can be used by tools.
<large-icon>employee-service-icon32x32.jpg</large-icon>
The large-icon element contains the name of a file containing a large (32 x 32) icon image. The file name is relative path within the ejb-jar file. The image must be either in the JPEG or GIF format, and the file name must end with the suffix ".jpg" or ".gif" respectively. The icon can be used by tools.
<enterprise-beans>
The enterprise-beans element contains the declarations of one or more enterprise beans.
<session>
The session element declares an session bean. The declaration consists of: an optional description; optional display name; optional small icon file name; optional large icon file name; a name assigned to the enterprise bean in the deployment description; the names of the session bean's home and remote interfaces; the session bean's implementation class; the session bean's state management type; the session bean's transaction management type; an optional declaration of the bean's environment entries; an optional declaration of the bean's EJB references; an optional declaration of the security role references; and an optional declaration of the bean's resource factory references. The elements that are optional are "optional" in the sense that they are omitted when if lists represented by them are empty.

补充：Jsp教程,J2EE/EJB/服务器