servlet的注册

servlet的注册即在当前web应用的WEB-INF/web.xml中进行配置,加入类似于下面的代码

<servlet>
 <servlet-name>hello</servlet-name>
 <servlet-class>com.tsinghua.hello</servlet-class>
</servlet>
<servlet-mapping>
 <servlet-name>hello</servlet-name>
 <url-pattern>/hello</url-pattern>
</servlet-mapping>

例如:

<?xml version="1.0" encoding="ISO-8859-1"?>

<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">

<servlet>
 <servlet-name>hello</servlet-name>
 <servlet-class>com.tsinghua.hello</servlet-class>
</servlet>
<servlet-mapping>
 <servlet-name>hello</servlet-name>
 <url-pattern>/hello</url-pattern>
</servlet-mapping>

<resource-ref>

<descryiption>DB Connection</descryiption>

<res-ref-name>shunping</res-ref-name>

<res-type>javax.sql.DataSource</res-type>

<res-auth>Container</res-auth>

</resource-ref> 

</web-app>

注: <url-pattern>/sp</url-pattern>标签对中

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