java 反射设置属性 案例

import lombok.extern.slf4j.Slf4j;

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


@Slf4j
public class Hsetman {

    public static void main(String[] args) throws Exception {
        Hsetman hsetman = new Hsetman();
        HalfmonthMaintitem model = new HalfmonthMaintitem();
        hsetman.setDefaultValue(model, "5");
        System.out.println(model.getHm20() + "-" + model.getHm2() + ":" + model.getHm7());

    }

    private <T> void setDefaultValue(T t, String value) throws Exception {
        Field[] field = t.getClass().getDeclaredFields();
        for (int j = 0; j < field.length; j++) {
            String name = field[j].getName();
            name = name.substring(0, 1).toUpperCase() + name.substring(1);
            Method n = t.getClass().getMethod("set" + name, String.class);
            n.invoke(t, value);
        }
    }
}