一、找问题点
1.打包很快，到部署很慢
2.部署到其他was一样很慢
二、解决
经过寻找，网上找出以下一段话：
问题出在web.xml，web.xml中的版本信息不对，要根据你的servlet版本和运行环境来修改，tomcat6支持servlet2.5，tomcat5的环境支持servlet2.4，对应不对就会因为版本问题造成验证耗时。因为web工程引用了struts，偷懒就把WEB.XML也复制进来，结果导致特别慢，将web.xml头按如下修改，速度正常。(更改版本)
附一：web.xml各版本头
-----------------------------------------------------------------------------------------------
servlet 2.3
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Servlet 2.3 Web Application</display-name>
</web-app>
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Servlet 2.3 Web Application</display-name>
</web-app>
-----------------------------------------------------------------------------------------------
servlet 2.4
servlet 2.4
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<web-app>
<display-name>Servlet 2.4 Web Application</display-name>
</web-app>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<web-app>
<display-name>Servlet 2.4 Web Application</display-name>
</web-app>
-----------------------------------------------------------------------------------------------
servlet 2.5
servlet 2.5
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<web-app>
<display-name>Servlet 2.5 Web Application</display-name>
</web-app>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<web-app>
<display-name>Servlet 2.5 Web Application</display-name>
</web-app>
-----------------------------------------------------------------------------------------------
servlet 3.0
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<web-app>
<display-name>Servlet 3.0 Web Application</display-name>
</web-app>
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<web-app>
<display-name>Servlet 3.0 Web Application</display-name>
</web-app>
附二：各个版本tomcat支持的servlet
