Gson

Gson is a Java library that can be used to convert Java Objects into their JSON representation. It can also be used to convert a JSON string to an equivalent Java object.

User guide

Maven

   1  <dependency>
   2   <groupId>com.google.code.gson</groupId>
   3   <artifactId>gson</artifactId>
   4   <version>2.5</version>
   5   <scope>compile</scope>
   6 </dependency>

@Expose annotation

To use this annotation, you must create Gson by using the code snippet below. The Gson instance created will exclude all fields in a class that are not marked with @Expose annotation.

Expose

   1 GSON gson = new  GsonBuilder.excludeFieldsWithoutExposeAnnotation().create()

@SerializedName annotation

Sets the field name in the serialized JSON.

SerializedName

-  ⇤ ← Revision 4 as of 2025-11-22 18:58:13 → 
  Size: 1058
  Editor: vitor
  Comment:
+   ← Revision 8 as of 2026-02-21 18:11:41 → ⇥
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-Deletions are marked like this.
+Additions are marked like this.
 Line 6:
- * https://github.com/google/gson/blob/master/UserGuide.md
+ * [[ https://github.com/google/gson/blob/master/UserGuide.md | User guide ]]
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-To use this annotation, you must create Gson by using new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create(). The Gson instance created will exclude all fields in a class that are not marked with @Expose annotation.
 * http://google.github.io/gson/apidocs/com/google/gson/annotations/Expose.html
 * GSON gson = new  GsonBuilder.excludeFieldsWithoutExposeAnnotation().create()
+To use this annotation, you must create Gson by using  the code snippet below. The Gson instance created will exclude all fields in a class that are not marked with @Expose annotation.
 * [[ http://google.github.io/gson/apidocs/com/google/gson/annotations/Expose.html | Expose ]]
{{{#!highlight java
GSON gson = new  GsonBuilder.excludeFieldsWithoutExposeAnnotation().create()
}}}
-Line 25:
+Line 26:
- * http://google.github.io/gson/apidocs/com/google/gson/annotations/SerializedName.html
+ * [[ http://google.github.io/gson/apidocs/com/google/gson/annotations/SerializedName.html | SerializedName ]]