Missing method or missing parameter

Additional experience: 1. I defined a APB, and then the property is PJHM (p uppercase). When I access through the APB.PJHM, I do not get the data, need APB.PJHM to get Apbprocessor.query (Ticketno,function (APB) {                      alert (APB.PJHM);              }); 1.   about passing multiple parameters such as a Java function public boolean del (String spjmc,string SPJHM), how to invoke it with DWR. Var pjmc,pjhm .... Assignment Glpjztbdwrprocessor.del (pjmc,pjhm,function (BOL) {        Alert (BOL); }); The parameters can be listed in sequence 2.   About passing parameters to a class if the class Pjztbprocessor has a method public Object query (PJZTB obj). parameter is a class. First, we must define the class-->       of the         <!-method in Dwr.xml.    <create creator= "new" javascript= "Glpjztbprocessor" scope= "page" >                 <param Name= "class"                        value= " Com.ticketManager.DB.PjztbProcessor "/>         </create>          <!-parameter Bean class-->         <convert Converter= "Bean" match= "COM.TICKETMANAGER.DB.PJZTB"/> Then we define a JavaScript class function Pjztb (PZMC, PJHM,SYZT) {        THIS.PZMC = PZMC;         THIS.PJHM = PJHM;         this.syzt = syzt;         ..... Third step, instantiate such class        var pz=new pjztb ();         Pz.pjhm=ticketno;         pz.pzmc= ' microcomputer a ticket '; The last step is to call it.         glpjztbprocessor.query (pz,function (PJZTB) {                alert (PJZTB.ZFZT);        }); Note: At the beginning, my Pjztbprocessor method is public object obj instead of public object query (PJZTB obj). In this case, the call will quote "missing method or missing parameter Converters:glPjztbProcessor.query" error