Java为对象空值赋默认值

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.math.BigDecimal;

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Student implements Serializable {
    private Long aLong;
    private long aLong2;
    private BigDecimal bigDecimal;
    private float aFloat;
    private Float aFloat2;
    private double aDouble;
    private Double aDouble2;

    private String name;
}

import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.math.BigDecimal;

public class ReflectValue {
    public static void main(String[] args) throws Exception {
        Student student = new Student();
        System.out.println(setObject(student));
    }

    private static Object setObject(Object object) throws Exception {
        Field[] fields = object.getClass().getDeclaredFields();
        for (Field field : fields) {
            String str = field.getName().substring(0, 1).toUpperCase();
            String get = "get" + str + field.getName().substring(1);
            Method method = object.getClass().getMethod(get);

            if (method.invoke(object) == null||method.invoke(object).equals("")) {
                field.setAccessible(true);
                field.set(object, setValue(field));
            }
        }
        return object;
    }

    private static Object setValue(Field field) {
        if (field.getType().equals(Float.class) || field.getType().equals(float.class)) {
            return 0f;
        } else if (field.getType().equals(double.class) || field.getType().equals(Double.class)) {
            return 0d;
        } else if (field.getType().equals(String.class)) {
            return "";
        } else if (field.getType().equals(Long.class) || field.getType().equals(long.class)) {
            return 0l;
        } else if (field.getType().equals(BigDecimal.class)) {
            return new BigDecimal("0");
        }
        return null;
    }
}