Java 反射与克隆

Question

示例我在之后有数据层

public class DemoData implements Cloneable {

    private String name;
    private String value;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getValue() {
        return value;
    }

    public void setValue(String value) {
        this.value = value;
    }

    @Override
    protected Object clone() throws CloneNotSupportedException {
        return super.clone(); //To change body of generated methods, choose Tools | Templates.
    }
}

我想将数据值(DemoData)分配给重复数据(DemoData 克隆)层，如下所示

public static void main(String[] args) {
        DemoData demoData = new DemoData();
        demoData.setName("Class Sources");
        testReflectionDemo(demoData);
    }

    private static DemoData testReflectionDemo(DemoData demoData) {
        try {
            DemoData clone = (DemoData) demoData.clone();
            clone.setName(demoData.getName());
            clone.setValue(demoData.getValue());
            return clone;
        } catch (CloneNotSupportedException ex) {
            Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
        }
        return null;
    }

我想将方法​​ testReflectionDemo(DemoData demoData) 转换为方法 testReflectionDemo(T t) 反射，如下所示。我不知道如何继续，请帮助我

public <T> T testReflectionDemo(T t){
        Class<?> aClass = t.getClass();
        for (Method method : aClass.getMethods()) {

        }
        return null;
    }

Answer 1

谢谢大家对我的问题的帮助，我已经删除了克隆方法，我只是应用了反射。嗨@dabaicai。你的代码帮助了我这个想法，我认为将值传递给私有(private)字段会更容易一点点。

public static <T> T clazzClone(T t) throws InstantiationException, IllegalAccessException, NoSuchFieldException {
        Class<?> clazzRoot = t.getClass();

        Object newInstance = clazzRoot.newInstance();
        Field[] fieldsClone = newInstance.getClass().getDeclaredFields();
        for (Field fieldClone : fieldsClone) {
            fieldClone.setAccessible(true);
            fieldClone.set(newInstance, getContent(t, fieldClone.getName()));
        }
        return (T) newInstance;
    }

    private static String getContent(Object aClass, String name) throws NoSuchFieldException, IllegalArgumentException, IllegalAccessException {
        Field declaredField = aClass.getClass().getDeclaredField(name);
        declaredField.setAccessible(true);
        return (String) declaredField.get(aClass);
    }

我的程序意味着当我需要编辑用户输入数据以输出我想要的结果时，具有通用的过滤功能

 fieldClone.set(newInstance,methodYourEdit(getContent(t, fieldClone.getName())));