求救~~~~~tomcat+mysql部署jsp環境!!!!!(轉)

求救~~~~~tomcat+mysql部署jsp環境!!!!!(轉)[@more@]我的JSP源程式在WINDOWS平臺執行很正常,採用的是Windows2000+Tomcat+mysql;現在要把程式移植到linux系統.
系統:Redhat AS3
JDK:1.5.0
執行正常:
[root@szho001 bin]# java -version
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode, sharing)
tomcat:5.5.17
執行正常:
[root@szho001 bin]# ./startup.sh start
Using CATALINA_BASE: /usr/local/apache-tomcat-5.5.17
Using CATALINA_HOME: /usr/local/apache-tomcat-5.5.17
Using CATALINA_TMPDIR: /usr/local/apache-tomcat-5.5.17/temp
Using JRE_HOME: /usr/java/jdk1.5.0
mysql:3.23.57
執行正常:
[root@szho001 bin]# mysql
Welcome to the MySQL monitor. Commands end with ; or g.
Your MySQL connection id is 3 to server version: 3.23.57

Type 'help;' or 'h' for help. Type 'c' to clear the buffer.

mysql>
訪問正常.
我把JSP源程式複製到/usr/local/tomcat/webapps/,修改了/usr/local/tomcat/conf/server.xml檔案,增加了以下內容:
reloadable="true" crossContext="true">

訪問提示錯誤,頁面顯示:

HTTP Status 404 - /games/welcome.do

type Status report

message /games/welcome.do

description The requested resource (/games/welcome.do) is not available.

Apache Tomcat/5.5.17

小弟現在急需解決這個問題,請各位大哥幫忙看看問題所在!!!!!
另外小弟一事不明:是不是需要安息安裝配置JDBC for MySQL;如果需要怎麼配置?