哪儿错了？
<a href="/displayProduct?productCode=8601">True Life Songs and Pictures</a>


404 Error

The server was not able to find the file you requested.





<servlet>
<servlet-name>DisplayProductServlet</servlet-name>
<servlet-class>music.catalog.DisplayProductServlet</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>DisplayProductServlet</servlet-name>
<url-pattern>/catalog/displayProduct</url-pattern>
</servlet-mapping>



[解决办法]
<url-pattern>/displayProduct</url-pattern>

[解决办法]
<a href="/displayProduct?productCode=8601">True Life Songs and Pictures</a> 改为
1.
<a href="<%=request.getContextPath()%>/displayProduct?productCode=8601">True Life Songs and Pictures</a>

2.
<a href${pageContext.request.contextPath}/displayProduct?productCode=8601">True Life Songs and Pictures</a>