servlet| Data | database | database connection keywords: Servlet connection pool
Author: Jrq
Body:
Test Web Application Environment: Win2K Pro + Tomcat 5.0
Note the order in which the servlet and connection pools are deployed in the Web.xml file in the Web application.
Web.xml files, in <web-app> tags, you need to write <servlet> and <servlet-mapping>, and then write <resource-ref>.
Otherwise, the context of this Web application does not start properly when Tomcat starts, and this Web application is not accessed properly.
The Web.xml concise example of a servlet and connection pool deployment at the same time is as follows:
---------------
<web-app>
<servlet>
<servlet-name>query</servlet-name>
<servlet-class>BookQuery</servlet-class>
</servlet>
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