@Test
public void testGetField() {
assertNull(
"inexistFileName field shouldn't exist!", ReflectUtil.getField(cls, "inexistFieldName"));
assertNotNull("name field should exist!", ReflectUtil.getField(cls, "name"));
}
/**
* 利用反射设置指定对象的指定属性为指定的值
*
* @param obj 目标对象
* @param fieldName 目标属性
* @param fieldValue 目标值
*/
public static void setFieldValue(Object obj, String fieldName, String fieldValue) {
Field field = ReflectUtil.getField(obj, fieldName);
if (field != null) {
try {
field.setAccessible(true);
field.set(obj, fieldValue);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
}
/**
* 利用反射获取指定对象的指定属性
*
* @param obj 目标对象
* @param fieldName 目标属性
* @return 目标属性的值
*/
public static Object getFieldValue(Object obj, String fieldName) {
Object result = null;
Field field = ReflectUtil.getField(obj, fieldName);
if (field != null) {
field.setAccessible(true);
try {
result = field.get(obj);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
return result;
}
