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    <p>The most straightforward approach I can think of is to just treat the structure as a <code>Map</code> (of <code>Map</code>).</p> <p>With Gson, this is relatively easy to do, as long as the <code>Map</code> structure is statically known, every branch from the root has the same depth, and everything is a <code>String</code>.</p> <pre><code>import java.io.FileReader; import java.lang.reflect.Type; import java.util.Map; import com.google.gson.Gson; import com.google.gson.reflect.TypeToken; public class GsonFoo { public static void main(String[] args) throws Exception { Gson gson = new Gson(); Type mapType = new TypeToken&lt;Map&lt;String,Map&lt;String, String&gt;&gt;&gt;() {}.getType(); Map&lt;String,Map&lt;String, String&gt;&gt; map = gson.fromJson(new FileReader("input.json"), mapType); System.out.println(map); // Get the count... int count = Integer.parseInt(map.get("0").get("count")); // Get each numbered entry... for (int i = 1; i &lt;= count; i++) { System.out.println("Entry " + i + ":"); Map&lt;String, String&gt; numberedEntry = map.get(String.valueOf(i)); for (String key : numberedEntry.keySet()) System.out.printf("key=%s, value=%s\n", key, numberedEntry.get(key)); } // Get the routes... Map&lt;String, String&gt; routes = map.get("routes"); // Get each route... System.out.println("Routes:"); for (String key : routes.keySet()) System.out.printf("key=%s, value=%s\n", key, routes.get(key)); } } </code></pre> <p>For more dynamic <code>Map</code> structure handling, I strongly suggest switching to use <a href="http://jackson.codehaus.org" rel="noreferrer">Jackson</a>, instead of Gson, as Jackson will deserialize any JSON object of any arbitrary complexity into a Java <code>Map</code>, with just one simple line of code, and it will automatically retain the types of primitive values.</p> <pre><code>import java.io.File; import java.util.Map; import org.codehaus.jackson.map.ObjectMapper; public class JacksonFoo { public static void main(String[] args) throws Exception { ObjectMapper mapper = new ObjectMapper(); Map map = mapper.readValue(new File("input.json"), Map.class); System.out.println(map); } } </code></pre> <p>The same can be achieved with Gson, but it requires dozens of lines of code. (Plus, Gson has other shortcomings that make switching to Jackson well worth it.)</p>
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    1. COHi, thanks for your solution! It's works perfectly. =)
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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