@WebServlet(
name="product",
urlPatterns={"/product/query.do","/product/add.do",
"/product/delete.do","/product/display.do"}
)
然后通过截取URI获取其方法名通过反射调用方法
2.在请求中添加参数
<a href="customerServlet?method=add"> Add</a>
<a href="customerServlet?method=query"> Query</a>
<a href="customerServlet?method=delete"> Delete</a>