如何查看JSP和Servlet版本

WEB应用中有两个JAR文件：jsp-api.jar和servlet-api.jar ，分别打开META-INF下的MAINMEFT.MF文件，查看对应的版本。 

例：

JSP版本：

Manifest-Version: 1.0

Ant-Version: Apache Ant 1.8.0

Created-By: 1.6.0_27-b07 (Sun Microsystems Inc.)

X-Compile-Source-JDK: 1.6

X-Compile-Target-JDK: 1.6

 

Name: javax/servlet/jsp/

Specification-Title: Java API for JavaServer Pages

Specification-Version: 2.2

Specification-Vendor: Sun Microsystems, Inc.

Implementation-Title: javax.servlet.jsp

Implementation-Version: 2.2.FR

Implementation-Vendor: Apache Software Foundation

 

Servlet版本：

Manifest-Version: 1.0

Ant-Version: Apache Ant 1.8.0

Created-By: 1.6.0_27-b07 (Sun Microsystems Inc.)

X-Compile-Source-JDK: 1.6

X-Compile-Target-JDK: 1.6

 

Name: javax/servlet/

Specification-Title: Java API for Servlets

Specification-Version: 3.0

Specification-Vendor: Sun Microsystems, Inc.

Implementation-Title: javax.servlet

Implementation-Version: 3.0.FR

Implementation-Vendor: Apache Software Foundation