$.ajax({
    type: "POST",
    url: "https://dpext.osdp06.ccgo.hksarg:9443/itapp/app3/app3.jsp",
    dataType: "jsonp",
    crossDomain: true,
    headers: {"X-OpenAM-Username":uid,"X-OpenAM-Password":password},

    success: function(Jdata) {
        alert("h");
    } });

<%@ page language="java" contentType="application/json; charset=ISO-8859-1"%>

 <%String id=request.getHeader("uid");%>
 <%String cn=request.getHeader("cn");%>
 <%String sn=request.getHeader("sn");%>
 <%String employ=request.getHeader("employType");%>