login.html

<form action="myservlet" method="post">

      姓名：<input name="userName" type="text"><br><br>
      密码：<input name="pwd" type="password"><br><br>
      <input type="submit" value="登录">
</form>

myservlet.java

public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {

        String name=request.getParameter("userName");
        String pwd=request.getParameter("pwd");

        response.setContentType("text/html");
        PrintWriter out = response.getWriter();

        out.println("用户名是"+name+"密码是："+pwd);

}

web.xml

<servlet-name>Servlet2</servlet-name>
<servlet-class>servelt.Servlet2</servlet-class>
</servlet>

<servlet-mapping>
<servlet-name>Servlet2</servlet-name>
<url-pattern>/myservlet</url-pattern>
</servlet-mapping>

更奇怪的是，我原来运行好好的sevlet程序全部不显示

求各位大侠帮忙