Vo 클래스 setter 메서드를 호출하여 자동으로 값 입력되도록

 

 

public class ValueObjectUtil {
 
 private static final Logger LOG = LoggerFactory.getLogger(ValueObjectUtil.class.getName());

 /**
  * Vo 클래스 값 자동설정
  * @param obj 클래스
  * @param params key/value map
  * @param isOverwrite 덮어쓰기 여부
  */
 public static void valueSetting(Object obj, Map<String, Object> params, boolean isOverwrite ){
  
  String methodName = null;
     Method setter = null;
     Method getter = null;
     Object getterVal = null;
  for( String key : params.keySet() ){
   try {
    getterVal = null;
    if(!isOverwrite){
     methodName = toGetterMethod(key);
     getter = getMethod(obj, methodName);
     if(getter != null){
      getter.setAccessible(true);
      getterVal = getter.invoke(obj);
     }
    }
 
    //값이 없을때만 셋팅
    if(getterVal == null){
     methodName = toSetterMethod(key);
     setter = getMethod(obj, methodName);
     if (setter != null) {
      setter.setAccessible(true);
      setter.invoke(obj, params.get(key));
     }
    }
   } catch (IllegalAccessException e) {
    LOG.error("ERROR:",e);
   } catch (IllegalArgumentException e) {
    LOG.error("ERROR:",e);
   } catch (InvocationTargetException e) {
    LOG.error("ERROR:",e);
   }
   
        }
 }
 
 /**
  * Vo 클래스 값 자동설정
  * @param obj 클래스
  * @param request request
  * @param isOverwrite 덮어쓰기 여부
  */
 public static void valueSetting(Object obj, HttpServletRequest request, boolean isOverwrite ){
  Map<String, Object> params = new HashMap<String, Object>();
  Enumeration<Object> e = request.getAttributeNames();
  while (e.hasMoreElements()) {
   String name = (String) e.nextElement();
   params.put(name, request.getAttribute(name));
     }

  valueSetting(obj, params, isOverwrite);
 }
 
 private static Method getMethod(Object obj, String methodName) {
  try {
   Method[] methods = obj.getClass().getMethods();
   for (Method method : methods) {
    if (method.getName().equals(methodName)) {
     return method;
    }
   }
  } catch (SecurityException e) {
   LOG.error("ERROR:",e);
  }
  return null;
 }
 
 private static String toSetterMethod(String property) {
  String setter = "set";
  setter += property.substring(0, 1).toUpperCase() + property.substring(1);
  return setter;
 }
 
 private static String toGetterMethod(String property){
  String setter = "get";
  setter += property.substring(0, 1).toUpperCase() + property.substring(1);
  return setter;
 }

}