public class Conversion {
private static Logger logger = LoggerFactory.getLogger(Conversion.class);
//将model中與entity中類型和名稱相同的屬性值指派給對應的entity的屬性，并傳回entity
public static T2 TypeConversion(T1 model, T2 entity) {
List> modelList = getFiledInfo(model);
List> entityList = getFiledInfo(entity);
for (Map e : entityList) {
for (Map m : modelList) {
if (e.get("type").toString().equals(m.get("type").toString()) && e.get("name")
.toString()
.equals(m.get("name").toString())) {
try {
Field f = entity.getClass().getDeclaredField(e.get("name").toString());
f.setAccessible(true);
f.set(entity, m.get("value"));
} catch (Exception ex) {//檢視其父類屬性
try {
Field f = entity.getClass().getSuperclass().getDeclaredField(e.get("name").toString());
f.setAccessible(true);
f.set(entity, m.get("value"));
} catch (Exception e1) {
logger.error(ex.getMessage(), "conversion類型轉換錯誤 " + ex);
}
}
}
}
}
return entity;
}
private static Object getFieldValueByName(String fieldName, Object o) {
try {
String firstLetter = fieldName.substring(0, 1).toUpperCase();
String getter = "get" + firstLetter + fieldName.substring(1);
Method method = o.getClass().getMethod(getter, new Class[]{});
Object value = method.invoke(o, new Object[]{});
return value;
} catch (Exception e) {
logger.error(e.getMessage(), e);
return null;
}
}
private static String[] getFiledName(Object o) {
Field[] fields = o.getClass().getDeclaredFields();
String[] fieldNames = new String[fields.length];
for (int i = 0; i < fields.length; i++) {
fieldNames[i] = fields[i].getName();
}
return fieldNames;
}
private static List> getFiledInfo(Object o) {
List> list = new ArrayList<>();
List fields = new ArrayList<>();
fields.addAll(Arrays.asList(o.getClass().getDeclaredFields()));
Class sc = o.getClass().getSuperclass();
if (sc != null) {
fields.addAll(Arrays.asList(sc.getDeclaredFields()));
}
for (Field field : fields) {
Map infoMap = new HashMap<>();
infoMap.put("type", field.getType().toString());
infoMap.put("name", field.getName());
infoMap.put("value", getFieldValueByName(field.getName(), o));
list.add(infoMap);
}
return list;
}
}