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POFill a Java Class with GSon Builder and JSon File
 

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  1. POFill a Java Class with GSon Builder and JSon File
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    <p>I want to fill a Java Class with an external JSon File and I works with Gson Builder. But my Java class won´t be filled by the value, which i have declared in the JSon File. What is the problem? Thanks for helping !</p> <p>This is my Json File:</p> <pre><code>{ "tstamp": "2012-11-21 18:00", "id": 123, "publicationList": [ { "id": "1L", "state": "PublicationState.IMMEDIATELY", "channel": "PublicationChannel.TIMETABLE", "startDate": "2001-12-17 18:00", "endDate": "2001-12-17 18:00" }, { "id": "2L", "state": "PublicationState.IMMEDIATELY", "channel": "PublicationChannel.NVS", "startDate": "2001-12-17 18:00", "endDate": "2001-12-17 18:00" }, { "id": "3L", "state": "PublicationState.IMMEDIATELY", "channel": "PublicationChannel.NVS", "startDate": "2001-12-17 18:00", "endDate": "2001-12-17 18:00" } ] } </code></pre> <p>This is my Gson Builder and GSon Instance Creator:</p> <pre><code> Gson gson = new GsonBuilder() .setDateFormat("yyyy-MM-dd HH:mm") .registerTypeAdapter(Publication.class, new PublicationInstanceCreator()).create(); public class PublicationInstanceCreator implements InstanceCreator&lt;PublicationDto&gt; { @Override public PublicationDto createInstance(Type type) { return new PublicationDto(); } } </code></pre> <p>This is the Java Class PublicattionDto:</p> <pre><code>public class PublicationDto{ private static final long serialVersionUID = 1L; private Long id; private PublicationState state = PublicationState.IMMEDIATELY; private PublicationChannel channel; private Date startDate; private Date endDate; //getter and setter methods } </code></pre>
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