Unable to map json string to java object using jackson API -

i writing web service (server + client). able make service , returns me following json

{ "cities": {     "city": [         {             "name": "new delhi",             "population": "19m",             "telephonecode": "011"         },         {             "name": "mumbai",             "population": "21m",             "telephonecode": "022"         },         {             "name": "chennai",             "population": "10m",             "telephonecode": "044"         }     ] } 

}

my pojo's

@xmlrootelement(name = "cities") public class restfulcities {  list<restfulcity> restfulcitylist;  @xmlelement(name = "city") public list<restfulcity> getrestfulcitylist() {     return restfulcitylist; }  public void setrestfulcitylist(list<restfulcity> restfulcitylist) {     this.restfulcitylist = restfulcitylist; } }  @xmlrootelement(name = "city") public class restfulcity { private string name; private string telephonecode; private string population;  public restfulcity(string name, string telephonecode, string population) {     this.name = name;     this.telephonecode = telephonecode;     this.population = population; }  public restfulcity(city city) {     this.name = city.getname();     this.telephonecode = city.gettelephonecode();     this.population = city.getpopulation(); } @xmlelement public string getname() {     return name; } @xmlelement public string gettelephonecode() {     return telephonecode; }  @xmlelement public string getpopulation() {     return population; } } 

now want write client map json pojo restfulcities object populated in java

my client code below:

public class client {  static final string rest_uri = "http://localhost:8080/springrest/rest/"; static final string cities = "cities"; public static void main(string[] args) {      string s = "";      webclient plainaddclient = webclient.create(rest_uri);     plainaddclient.path(cities).accept("application/json");     s = plainaddclient.get(string.class);     try {          restfulcities citiesobject = new objectmapper().readvalue(s, restfulcities.class);          for(restfulcity city : citiesobject.getrestfulcitylist()) {             system.out.println("----------start---------");             system.out.println(city.getname());             system.out.println(city.getpopulation());             system.out.println(city.gettelephonecode());             system.out.println("---------end----------");         }      } catch (jsonparseexception e) {         // todo auto-generated catch block         e.printstacktrace();     } catch (jsonmappingexception e) {         // todo auto-generated catch block         e.printstacktrace();     } catch (ioexception e) {         // todo auto-generated catch block         e.printstacktrace();     } }  } 

but issue is: getting following exception

org.codehaus.jackson.map.exc.unrecognizedpropertyexception: unrecognized field "cities"(class com.techartifact.example.spring.model.restfulcities), not marked ignorable  @ [source: java.io.stringreader@1d35bf2; line: 1, column: 12] (through reference    chain: com.techartifact.example.spring.model.restfulcities["cities"]) 

when using below property:

@jsonignoreproperties(ignoreunknown = true) 

although donot exception, restfulcitylist null not desired

please help

you using jaxb annotations need configure objectmapper correct module; need jackson-module-jaxb-annotations project. add using favorite dependency management system , use this:

jaxbannotationmodule module = new jaxbannotationmodule(); // configure necessary objectmapper.registermodule(module); 

note: jackson 2.x. jackson 1.x support jaxb default, version not supported anymore , given having problem using jackson 2.x anyways.

update: jaxb annotation great interop xml system, should use jackson's own annotation if can. remove need jaxb module , configuration of objectmapper. also, there functionality in jackson available through annotation because there no equivalent in jaxb.