import java.io.FileReader; import com.google.gson.JsonElement; JsonElement root = JsonParser.parseReader(new FileReader("data.json")); Use code with caution. 5. Troubleshooting "Class Not Found" Errors
For large JSON files, it is more memory-efficient to use a FileReader :
Once you have downloaded the library, you can start parsing. Note that in newer versions of Gson (2.8.6+), the static methods are preferred over creating a new instance of JsonParser . Basic Example: Parsing a JSON String com.google.gson.jsonparser download
com.google.code.gson gson 2.11.0 Use code with caution. Method B: Gradle For Gradle users, add this line to your build.gradle file: implementation 'com.google.code.gson:gson:2.11.0' Use code with caution. Method C: Manual JAR Download
If you aren't using a build tool, you can download the JAR file directly: Visit the Maven Central Repository. Select the latest version. Click on the link under the "Downloads" section. import java
If you encounter a ClassNotFoundException: com.google.gson.JsonParser , check the following:
Add the downloaded gson-x.y.z.jar to your project's build path. 3. Implementing JsonParser in Your Code Note that in newer versions of Gson (2
import com.google.gson.JsonObject; import com.google.gson.JsonParser; public class Main { public static void main(String[] args) { String jsonString = "{ \"name\": \"John\", \"age\": 30 }"; // Parse the string into a JsonObject JsonObject jsonObject = JsonParser.parseString(jsonString).getAsJsonObject(); // Access data String name = jsonObject.get("name").getAsString(); int age = jsonObject.get("age").getAsInt(); System.out.println("Name: " + name); System.out.println("Age: " + age); } } Use code with caution. 4. Common Use Cases Parsing a JSON Array
Mobile|Developer Email|Account frozen|Privacy Policy|FairyABC
GMT-4, 2026-5-8 17:38 , Processed in 0.020246 second(s), 9 queries .
Powered by Discuz! X3.5
© 2001-2026 Discuz! Team.