dataTables non remplis dans struts2 hibernate

Question

J'ai une date jquery qui devrait être chargée avec une table de données. J'utilise Struts2 Hibernate.

JSP Page:

<script> 
    $(document).ready(function() { 
      $(".jqueryDataTable").dataTable({ 
        "sPaginationType" : "full_numbers", 
        "bProcessing" : false, 
        "bServerSide" : false, 
        "sAjaxSource" : "getProductPropData", 
        "bJQueryUI" : true, 
        "aoColumns" : [ 
       { "mData": "densityId" }, 
       { "mData": "densityDescription" } 
      ] 
     }); 
    }); 
    </script> 

struts.xml

<package name="json" namespace="/" extends="json-default"> 
    <action name="getProductPropData" class="com.test.action.PropertyListDataAction"> 
    <result type="json"> 
     <param name="excludeNullProperties">true</param> 
     <param name="noCache">true</param> 
    </result> 
    </action> 
</package> 

Class Action:

public String execute() throws Exception { 
     // TODO Auto-generated method stub 

     SessionFactory sf = (SessionFactory) ctx.getAttribute("SessionFactory"); 
     ProductPropertyDAO pdao = new ProductPropertyDAOImpl(sf); 
     List<DensityGroup> dg = pdao.getProductPropListData("Density"); 
     Gson gson = new Gson(); 
     jsonData = gson.toJson(dg); 
     System.out.println("dg:"+dg); 
     return "success"; 
     } 

Je reçois une réponse de la base de données au format JSON mais mon datatable ne reçoit pas peuplé.

] 2

JSON:

{"jsonData":"[{\"densityId\":15,\"validationAware\":{}},{\"densityId\":11,\"densityDescription\":\"Mcvr\",\"validationAware\":{}},{\"densityId\":14,\"densityDescription\":\"test\",\"validationAware\":{}},{\"densityId\":16,\"densityDescription\":\"Chitti\",\"validationAware\":{}},{\"densityId\":12,\"densityDescription\":\"MCVR\",\"validationAware\":{}},{\"densityId\":13,\"densityDescription\":\"4\\\" DIA\",\"validationAware\":{}},{\"densityId\":14,\"densityDescription\":\"test\",\"validationAware\":{}},{\"densityId\":15,\"validationAware\":{}},{\"densityId\":21,\"densityDescription\":\"1 1\/4\\\" DIA\",\"validationAware\":{}},{\"densityId\":22,\"densityDescription\":\"3\/4\\\" DIA\",\"validationAware\":{}},{\"densityId\":37,\"densityDescription\":\"25\\\"DIA\",\"validationAware\":{}},{\"densityId\":24,\"densityDescription\":\"8\\\" DIA\",\"validationAware\":{}},{\"densityId\":25,\"densityDescription\":\"1 1\/8\\\" DIA\",\"validationAware\":{}},{\"densityId\":28,\"densityDescription\":\"6\\\"\",\"validationAware\":{}},{\"densityId\":29,\"densityDescription\":\"1\/2\\\" DIA\",\"validationAware\":{}},{\"densityId\":30,\"densityDescription\":\"EXHAUST STEAM\",\"validationAware\":{}},{\"densityId\":19,\"densityDescription\":\"1 1\/2\\\" DIA\",\"validationAware\":{}},{\"densityId\":44,\"densityDescription\":\"EXHAUSTCLADDING\",\"validationAware\":{}},{\"densityId\":1,\"densityDescription\":\"16 KG\",\"validationAware\":{}},{\"densityId\":11,\"densityDescription\":\"Mcvr\",\"validationAware\":{}},{\"densityId\":2,\"densityDescription\":\"20 KG\",\"validationAware\":{}},{\"densityId\":3,\"densityDescription\":\"24 KG\",\"validationAware\":{}},{\"densityId\":5,\"densityDescription\":\"48 KG\",\"validationAware\":{}},{\"densityId\":6,\"densityDescription\":\"64 KG\",\"validationAware\":{}},{\"densityId\":7,\"densityDescription\":\"96 KG\",\"validationAware\":{}},{\"densityId\":8,\"densityDescription\":\"100 KG\",\"validationAware\":{}},{\"densityId\":9,\"densityDescription\":\"128 KG \",\"validationAware\":{}},{\"densityId\":10,\"densityDescription\":\"120 KG \",\"validationAware\":{}},{\"densityId\":18,\"densityDescription\":\"144KG\",\"validationAware\":{}},{\"densityId\":23,\"densityDescription\":\"5\\\" DIA\",\"validationAware\":{}},{\"densityId\":26,\"densityDescription\":\"4\\\"\",\"validationAware\":{}},{\"densityId\":27,\"densityDescription\":\"125 KG\",\"validationAware\":{}},{\"densityId\":34,\"densityDescription\":\"10\\\" DIA\",\"validationAware\":{}},{\"densityId\":32,\"densityDescription\":\"18\\\" \",\"validationAware\":{}},{\"densityId\":33,\"densityDescription\":\"12\\\" DIA\",\"validationAware\":{}},{\"densityId\":35,\"densityDescription\":\"14\\\" DIA\",\"validationAware\":{}},{\"densityId\":36,\"densityDescription\":\"5\/8\\\" DIA\",\"validationAware\":{}},{\"densityId\":38,\"densityDescription\":\"(1\/2 x 24 SWG)\",\"validationAware\":{}},{\"densityId\":39,\"densityDescription\":\"8\\\" FLANGE\",\"validationAware\":{}},{\"densityId\":40,\"densityDescription\":\"6\\\" FLANGE\",\"validationAware\":{}},{\"densityId\":41,\"densityDescription\":\"3\\\" FLANGE\",\"validationAware\":{}},{\"densityId\":42,\"densityDescription\":\"25 MM DIA\",\"validationAware\":{}},{\"densityId\":43,\"densityDescription\":\"150 KG\",\"validationAware\":{}},{\"densityId\":46,\"densityDescription\":\"INSULATION WORK\",\"validationAware\":{}},{\"densityId\":47,\"densityDescription\":\"18\\\" DIA\",\"validationAware\":{}},{\"densityId\":16,\"densityDescription\":\"Chitti\",\"validationAware\":{}},{\"densityId\":45,\"densityDescription\":\"1 3\/8 DIA\",\"validationAware\":{}},{\"densityId\":56,\"densityDescription\":\"18 KG\",\"validationAware\":{}},{\"densityId\":55,\"densityDescription\":\"40 KG\",\"validationAware\":{}},{\"densityId\":48,\"densityDescription\":\"85 KG\",\"validationAware\":{}},{\"densityId\":49,\"densityDescription\":\"2\\\"\",\"validationAware\":{}},{\"densityId\":50,\"densityDescription\":\"12 KG\",\"validationAware\":{}},{\"densityId\":53,\"densityDescription\":\"FLANGES\",\"validationAware\":{}},{\"densityId\":51,\"densityDescription\":\"2 1\/2\\\" DIA\",\"validationAware\":{}},{\"densityId\":52,\"densityDescription\":\"INSULATION \",\"validationAware\":{}},{\"densityId\":54,\"densityDescription\":\"VALVES\",\"validationAware\":{}},{\"densityId\":57,\"densityDescription\":\"CLASS O\",\"validationAware\":{}},{\"densityId\":58,\"densityDescription\":\"140 KG\",\"validationAware\":{}},{\"densityId\":59,\"densityDescription\":\"30 KG\",\"validationAware\":{}}]"} 

Answer 1

Par datatables par défaut recherche l'élément 'données' dans le JSON. Il ne peut pas le trouver, c'est donc 'indéfini'. DataTables fournit un moyen de spécifier l'élément à utiliser. En comparant votre json avec celui sur le lien de documentation ci-dessous, vous devriez pouvoir spécifier ajax.dataSrc = "jsonData" ou changer "jsonData" en "data" dans votre objet de données. Je recommanderais de passer à la nouvelle convention de dénomination pour les options datatable si possible, c'est plus clair et la documentation est adaptée à ce sujet. Si vous ne pouvez pas utiliser le nouveau schéma de nommage, changer votre objet json est probablement la meilleure option.

Documentation: https://datatables.net/examples/ajax/custom_data_property.html