Unmarshalling nested objects from JSON with JAXB -


i'm trying unmarshall input json jaxb objects eclipselink. however, when try this, find nested objects end being set null. can try , unmarshall nested object itself, , work until point has unmarshall further nested object, set null.

for example, take class:

@xmlaccessortype(xmlaccesstype.field) @xmltype(name = "event", proporder = { "objectbs" }) public class objecta implements serializable {      private final static long serialversionuid = 56347348765454329l;     @xmlelement(required = true)     protected objecta.objectbs objectbs;      public objecta.objectbs getobjectbs() {         return objectbs;     }      public void setobjectbs(objecta.objectbs value) {         this.objectbs = value;     }      public boolean issetobjectbs() {         return (this.objectbs!= null);     }      @xmlaccessortype(xmlaccesstype.field)     @xmltype(name = "", proporder = {         "objectb"     })     public static class objectbs         implements serializable     {          private final static long serialversionuid = 56347348765454329l;         @xmlelement(required = true)         protected list<objectb> objectb;          public list<objectb> getobjectb() {             if (objectb == null) {                 objectb = new arraylist<objectb>();             }             return this.objectb;         }          public boolean issetobjectb() {             return ((this.objectb!= null)&&(!this.objectb.isempty()));         }          public void unsetobjectb() {             this.objectb = null;         }      } }

where objecta has object called objectbs contains list of objectb. when try unmarshalling class, other field objecta has correctly filled, , objectbs object created, list of objectb empty. but, if unmarshall 1 objectb itself, created it's fields filled, until it's own nested objects.

this code i'm using unmarshall json:

jaxbcontext jc = jaxbcontextfactory.createcontext(     "com.package1"     + ":com.package2"     + ":com.package3"     , null); unmarshaller um = jc.createunmarshaller(); um.setproperty("eclipselink.media-type", "application/json");  um.setproperty(marshallerproperties.json_include_root, false); objecta obja = unmarshaller.unmarshal(new streamsource(     new stringreader(json)), objecta.class).getvalue();

and example json:

        {                 "objectbs": [                     {                         "a": "blahblah",                         "b": 123456,                         "c": "abc blah 123 blah",                         "nestedobject": {                             "evenmorenestedobjects": {                                 "d": "blah",                                 "e": "blahblahblah",                                 "anothernestedobject": {                                     "x": 25,                                     "y": 50                                 }                         }}}]         }

you didn't provide json trying unmarshal, i've done little reverse engineering , below example works using model posted in question:

import javax.xml.bind.*; import javax.xml.transform.stream.streamsource; import org.eclipse.persistence.jaxb.marshallerproperties; import org.eclipse.persistence.jaxb.unmarshallerproperties;  public class demo {      public static void main(string[] args) throws exception {         jaxbcontext jc = jaxbcontext.newinstance(objecta.class);          unmarshaller unmarshaller = jc.createunmarshaller();         unmarshaller.setproperty(unmarshallerproperties.media_type, "application/json");         unmarshaller.setproperty(unmarshallerproperties.json_include_root, false);         streamsource json = new streamsource("src/forum17866155/input.json");         objecta objecta = unmarshaller.unmarshal(json, objecta.class).getvalue();          marshaller marshaller = jc.createmarshaller();         marshaller.setproperty(marshallerproperties.media_type, "application/json");         marshaller.setproperty(marshallerproperties.json_include_root, false);         marshaller.setproperty(marshaller.jaxb_formatted_output, true);         marshaller.marshal(objecta, system.out);     }  }

input.json/output

{    "objectbs" : {       "objectb" : [ {       }, {       } ]    } }

Comments

Post a Comment

Popular posts from this blog

curl - PHP fsockopen help required -

i trying work on cloudflare api , have found in documentation. unfortunately have no idea how can use in fsockopen or through curl. here example of post request. need know how can make request below data post using curl or fsockopen curl https://www.cloudflare.com/api_json.html -d 'a=cache_lvl' \ -d 'tkn=8afbe6dea02407989af4dd4c97bb6e25' \ -d 'email=sample@example.com' \ -d 'z=example.com' \ -d 'v=agg' here link cloudflare https://www.cloudflare.com/docs/client-api.html#s4.2 try one: $ch = curl_init("https://www.cloudflare.com/api_json.html"); curl_setopt($ch, curlopt_returntransfer,1); curl_setopt($ch, curlopt_followlocation, 1); curl_setopt($ch, curlopt_ssl_verifypeer,false); // handling of -d curl parameter here. $param = array( 'a' => 'cache_lvl', 'tkn' => '8afbe6dea02407989af4dd4c97bb6e25', 'email' => 'sample@example.com', 'z' =...
Read more

HTTP/1.0 407 Proxy Authentication Required PHP -

i working in restricted network/limited access internet. since have use proxy make web service call. here php code calling web service , response . $client = new soapclient("http: //www.xyz.com/abc/wsdls/login.wsdl", array("trace" => 1, "exceptions" => 1, 'proxy_host' => $proxy_host, 'proxy_port' => $proxy_port, 'proxy_login' => $proxy_login, 'proxy_password' => $proxy_password)); response is fatal error: uncaught soapfault exception: [wsdl] soap-error: parsing wsdl: couldn't load ' http://www.xyz.com/abc/wsdls/login.wsdl ' : failed load external entity if copy url error message , paste in browser(with same proxy settings) works. 2nd scenario is, if pass values instead of variables giving me diffarant response $client = new soapclient("http: //www.xyz.com/abc/wsdls/login.wsdl", array("trace" => 1, "exceptions" => 1, 'proxy_host' ...
Read more

c# - Resource not found error -

i have problem accessing method on homecontroller. show code of method : [httpget] public actionresult decriptidentifiantetredirige(string login_crypter, string mdp_crypter) { string loginacrypter = _globalmanager.protegemotdepasse(login_crypter); string mdpacrypter = _globalmanager.protegemotdepasse(mdp_crypter); user userapp = new models.user(login_crypter, mdp_crypter); if (userapp.authentificationvalidee(userapp.userlogin, userapp.password)) { session["name"] = userapp.userlogin; return redirecttoaction("accueil", "home"); } else { return redirecttoaction("validerauthentification", "home"); } } then in routeconfig.cs wrote route : routes.maproute( name: "authentificationapresdecryptage", url: "{controller}/{action}/{login_crypter}/{mdp_crypter}", defaults: new...
Read more