• s.getClass().getInterfaces() : 表示获取该对象的所有实现的接口数组

public class ReflectUtil {    /**     * 反射执行方法     *     * @param classLoader     * @param className     * @param methodName     * @param receiver     * @param classes     * @param params     * @return     * @throws Throwable     */    public static Object invoke(ClassLoader classLoader, String className, String methodName, Object receiver, Class[] classes, Object[] params) throws Throwable {        return classLoader.loadClass(className).getMethod(methodName, classes).invoke(receiver, params);    }    /**     * 获取泛型类型     *     * @param o     * @return     */    public static Class getTClass(Object o) {        try {            Type genType = o.getClass().getGenericSuperclass();            Type[] params = ((ParameterizedType) genType).getActualTypeArguments();            Class entityClass = (Class) params[0];            return entityClass;        } catch (Exception e) {        }        try {            Type[] genType = o.getClass().getGenericInterfaces();            Type[] params = ((ParameterizedType) genType[0]).getActualTypeArguments();            Class entityClass = (Class) params[0];            return entityClass;        } catch (Exception e) {        }        return null;    }    public static Type[] getTClasses(Object o) {        Type genType = o.getClass().getGenericSuperclass();        Type[] params = ((ParameterizedType) genType).getActualTypeArguments();        return params;    }    /**     * 复制属性     *     * @param toObj     * @param fromObj     */    public static void copyFields(Object toObj, Object fromObj) {        Class toClass = toObj.getClass();        Class fromClass = fromObj.getClass();        HashSet
    
      fields = new HashSet<>();        for (Field field : toClass.getFields()) {            fields.add(field);        }        for (Field field : toClass.getDeclaredFields()) {            fields.add(field);        }        for (Field toField : fields) {            toField.setAccessible(true);            try {                Field fromField = fromClass.getField(toField.getName());                if (fromField.getType() == toField.getType()) {                    fromField.setAccessible(true);                    toField.set(toObj, fromField.get(fromObj));                }            } catch (NoSuchFieldException e) {                e.printStackTrace();            } catch (IllegalAccessException e) {                e.printStackTrace();            }        }    }    public static void copyFieldsByAnnotation(Object toObj, Object fromObj) {        Class toClass = toObj.getClass();        Class fromClass = fromObj.getClass();        HashSet
     
       fields = new HashSet<>();        for (Field field : toClass.getFields()) {            fields.add(field);        }        for (Field field : toClass.getDeclaredFields()) {            fields.add(field);        }        for (Field toField : fields) {            toField.setAccessible(true);            for (Annotation annotation : toField.getAnnotations()) {                if (annotation instanceof FromOld) {                    FromOld fromOld = (FromOld) annotation;                    try {                        String oldName = fromOld.oldName();                        if (TextUtils.isEmpty(oldName)) {                            oldName = toField.getName();                        }                        Field fromField = fromClass.getField(oldName);                        if (fromField.getType() == toField.getType()) {                            fromField.setAccessible(true);                            toField.set(toObj, fromField.get(fromObj));                        }                    } catch (NoSuchFieldException e) {                        e.printStackTrace();                    } catch (IllegalAccessException e) {                        e.printStackTrace();                    }                }            }        }    }    public static Object getField(Object obj, Class
       cl, String field)            throws NoSuchFieldException, IllegalArgumentException, IllegalAccessException {        Field localField = cl.getDeclaredField(field);        localField.setAccessible(true);        return localField.get(obj);    }    public static void setField(Object obj, Class
       cl, String field, Object value)            throws NoSuchFieldException, IllegalArgumentException, IllegalAccessException {        Field localField = cl.getDeclaredField(field);        localField.setAccessible(true);        localField.set(obj, value);    }}