jquer使用ajax

jquery使用ajax时返回xml时:前台的请求方法:vfunction dosubmit(packageId){$.ajax({   type: "POST",   url: "/yy/tt.jhtml",   data: "Action=firm&id=2&name=tttt",   success: function(msg){     $("#layer_msg").text($(msg).find("msg").text());   }}); }后台返回如下:response.setContentType("text/xml; charset=UTF-8");PrintWriter printWriter=response.getWriter();printWriter.println("<response><msg>dfdfdfdfd</msg></response>");printWriter.close();