implementation 'com.google.code.gson:gson:2.8.5'
public class Employee {
@SerializedName("firstName")
private String firstName;
private int age;
private String mail;
//省略构造器 和 toString
}
//生成json
Employee employee = new Employee("yc",30,"qq");
String s = gson.toJson(employee);
Log.d("qq", "onCreate: "+s);
//生成实体
Employee employee= gson.fromJson(json,Employee.class);