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Convert JSON object to Java object using Gson library in Java?
A Gson is a json library for java, which is created by Google and it can be used to generate a JSON. By using Gson, we can generate JSON and convert JSON to java objects. We can call the fromJson() method of Gson class to convert a JSON object to Java Object.
Syntax
public <T> fromJson(java.lang.String json, java.lang.Class<T> classOfT) throws JsonSyntaxException
Example
import com.google.gson.*;
public class JSONtoJavaObjTest {
public static void main(String[] args) {
Gson gson = new Gson();
Emp emp = gson.fromJson("{'name':'raja','age':25}", Emp.class);
System.out.println(emp.getName());
System.out.println(emp.getAge());
}
}
// Emp class
class Emp {
String name;
int age;
public Emp() {
super();
}
public Emp(String name, int age) {
super();
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}Output
raja 25
Updated on: 04-Jul-2020
7K+ Views
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