websphere tomcat oc4j weblogic的部署和问题解决

1.IBM websphere部署过程中部署不上的问题解决；
问题代码“IWAE0022E Exception occurred loading deployment descriptor for module "Prox.war" in EAR……”
问题解决：
这主要是websphere中部署文件中web.xml的servlet语句没有按顺序匹配的问题，servlet的语法格式如下；
注意：一定要按照下面的顺序写，没有的可以不写，但一定要按顺序
     (icon?,servlet-name,display-name?,description?,(servlet-class|jsp-file),init-param*,load-on-startup?,run-as?,security-role-ref)


2.tomcat5.0 和JDK1.50的兼容性问题解决：
  tomcat5.0和JDK1.5.0共同适用的时候经常会出现部署的web应用系统不可用的现象。主要是因为tomcat 里面的D:\Apache Software Foundation\Tomcat 5.0\common\endorsed 的两个JAR包是用来弥补JDK1.4*以上的一个补丁，我们的JDK版本是1.50。所以在适用的时候就会产生web应用系统不可用的现象，这个时候我们把..\..\endorsed下的两个JAR包删除既可以了。


4.The different of all web application server~
  Apache is a web server, it servers static HTML pages or dynamic HTML with CGI. It is the most popular
web server. But it can't run JSP/Sevlet independantly.
   Tomcat is a JSP/Servlet container. It runs JSP and Servlet. It can server static HTML or images, but not effectively. That is why people bundle them together to use Apache to serve HTML but Tomcat to server JSP/Servlet.
   Oc4J is from Oracle. It same as Tomcat plus it can run EJB and other advanced J2EE fetures. It bundles with Apache too.
   Weblogic is by BEA. It is the most advanced Application Server. Runs everything.
Other application server products include Resin (free, same like Tomcat), IBM's WebSphere (like OC4J), and JBoss(Free, like WebSphere).