/**
* 设置JSpinner的编辑属性
* @param spinner 目标JSpinner
* @param isAllowInvalid 是否允许输入非法值
* @param isEditable 是否允许编辑
*/
public static void setAllowsInvalid(JSpinner spinner, boolean isAllowInvalid, boolean isEditable)
{
JSpinner.NumberEditor editor = new JSpinner.NumberEditor(spinner, "#");
spinner.setEditor(editor);
JFormattedTextField tf = ((JSpinner.NumberEditor)spinner.getEditor()).getTextField();
tf.setEditable(isEditable);
DefaultFormatterFactory factory = (DefaultFormatterFactory)tf.getFormatterFactory();
NumberFormatter formatter = (NumberFormatter)factory.getDefaultFormatter();
formatter.setAllowsInvalid(isAllowInvalid);
}
/**
* 根据指定方法的参数去构造一个新的对象的拷贝并将他返回
* @param obj 原始对象
* @return 新对象
* @throws NoSuchMethodException
* @throws InvocationTargetException
* @throws IllegalAccessException
* @throws InstantiationException
* @throws SecurityException
* @throws IllegalArgumentException
*/
@SuppressWarnings("unchecked")
public static Object copy(Object obj) throws IllegalArgumentException, SecurityException, InstantiationException, IllegalAccessException,
InvocationTargetException, NoSuchMethodException
{
//获得对象的类型
Class classType = obj.getClass();
//通过默认构造方法去创建一个新的对象，getConstructor的视其参数决定调用哪个构造方法
Object objectCopy = classType.getConstructor(new Class[]{}).newInstance(new Object[]{});
//获得对象的所有属性
Field[] fields = classType.getDeclaredFields();
for(int i = 0; i < fields.length; i++)
{
//获取数组中对应的属性
Field field = fields[i];
String fieldName = field.getName();
String stringLetter = fieldName.substring(0, 1).toUpperCase();
//获得相应属性的getXXX和setXXX方法名称
String getName = "get" + stringLetter + fieldName.substring(1);
String setName = "set" + stringLetter + fieldName.substring(1);
//获取相应的方法
Method getMethod = classType.getMethod(getName, new Class[]{});
Method setMethod = classType.getMethod(setName, new Class[]{field.getType()});
//调用源对象的getXXX（）方法
Object value = getMethod.invoke(obj, new Object[]{});
//调用拷贝对象的setXXX（）方法
setMethod.invoke(objectCopy, new Object[]{value});
}
return objectCopy;
}
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