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How to Parse JSON Arrays with Gson Directly into a List of Objects?

Susan Sarandon
Susan SarandonOriginal
2024-11-04 06:23:291030browse

How to Parse JSON Arrays with Gson Directly into a List of Objects?

Parsing JSON Arrays with Gson

You've encountered an issue when attempting to parse JSON arrays using Gson. While you successfully retrieve the JSON output and create Post and PostEntity classes, your code does not produce any errors or warnings but fails to log the data.

To resolve this issue, you don't need to use a separate PostEntity class or convert the JSON into a JSONObject. Instead, you can directly parse the JSON array into a list of Post objects. Here's the corrected code:

<code class="java">Gson gson = new Gson();
String jsonOutput = "[jsonString]";
Type listType = new TypeToken<List<Post>>() {}.getType();
List<Post> posts = gson.fromJson(jsonOutput, listType);</code>

This code eliminates unnecessary intermediate steps and directly parses the JSON array into a list of Post objects. You can then access and log the Post objects directly.

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