Parsing JSON Array using GSON

Question

I have a basic JSON with all data contained in an array. One would think that it would be simple to retreive a value out of the array, but after multiple hours of trying eve

Answer 1

Your json format is not correct which you have posted here correct it for example

{ 
   "versions":[
      {
         "id":"2.7",
         "time":"2012-10-25T15:00:00+02:00",
         "releaseTime":"2013-10-25T15:00:00+02:00",
         "type":"Release"
      },
      {
         "id":"2.6.4",
         "time":"2011-12-2T14:01:07+02:00",
         "releaseTime":"2013-12-2T14:01:07+02:00",
         "type":"Develop"
      }
   ]
} 

First Define Classes you will get everything

public class Version {

       private List versions;

       public List getVersions() {
           return versions;
       }

       public void setVersions(List versions) {
           this.versions = versions;
       }

       @Override
       public String toString() {
           return "Version [versions=" + versions + "]";
       }
}

public class Versions {

    private String  id;
    private String  time;
    private String  releaseTime;
    private String  type;
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getTime() {
        return time;
    }
    public void setTime(String time) {
        this.time = time;
    }
    public String getReleaseTime() {
        return releaseTime;
    }
    public void setReleaseTime(String releaseTime) {
        this.releaseTime = releaseTime;
    }
    public String getType() {
        return type;
    }
    public void setType(String type) {
        this.type = type;
    }
    @Override
    public String toString() {
        return "Versions [id=" + id + ", time=" + time + ", releaseTime="
                + releaseTime + ", type=" + type + "]";
    }
}

Finally you can parse the JSON as like here

JsonReader reader = new JsonReader(new FileReader(Constants.VersJson));
Gson gson = new Gson();
Version version = gson.fromJson(reader, Version.class);