1.  简要说明:Tomcat6.0 所支持的是Servlet2.5,Tomcat 7.0 所支持的Servlet3.0,Servlet2.5 和Servlet3.0的差异较大,对于Servlet3.0而言,WEB-INF路径下的web.xml文件不再是必需的,但通常还是建议保留;当 然,Servlet2.5 和 Servlet3.0 还是有很多其他方面的差别

2.   查看Servlet和jsp的版本

  • 进入Tomcat根目录下的lib,找到servlet-api.jar/jsp-api.jar
  • 双击使用WinRAR打开,找到META-INF\MANIFEST.MF文件,其中便包含了其版本信息;
  • 我的Servlet版本信息
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.4
Created-By: 1.6.0_39-b04 (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    //servlet版本
Specification-Vendor: Sun Microsystems, Inc.
Implementation-Title: javax.servlet
Implementation-Version: 3.0.FR
Implementation-Vendor: Apache Software Foundation

我的Jsp版本信息

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.8.4
Created-By: 1.6.0_39-b04 (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    //jsp版本
Specification-Vendor: Sun Microsystems, Inc.
Implementation-Title: javax.servlet.jsp
Implementation-Version: 2.2.FR
Implementation-Vendor: Apache Software Foundation

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