如果将用户组件保存在服务器端的主要目的是-可以向用户显示相同的界面-为什么不保存您需要的有关用户组件的所有描述性信息，以及何时需要-
只需重建用户界面再次使用存储的描述性信息？这是原始示例：
public class DropedComponentsCoordinates implements Serializable{private String componentID;private String x_coord;private String y_coord;//and so on, whatever you need to get from yor serializable objects;//getters and setters are assumed but not typed here. } public class YourController implements Initializable {List<DropedComponentsCoordinates> dropedComponentsCoordinates;@Overridepublic void initialize(URL url, ResourceBundle rb) { dropedComponentsCoordinates = new ArrayList();}//This function will be fired, every time //a user has dropped a component on the place he/she wantspublic void onDropFired(ActionEvent event) { try { //getting the info we need from components String componentID = getComponentID(event); String component_xCoord = getComponent_xCoord(event); String component_yCoord = getComponent_yCoord(event); //putting this info to the list DropedComponentsCoordinates dcc = new DropedComponentsCoordinates(); dcc.setX_Coord(component_xCoord); dcc.setY_Coord(component_yCoord); dcc.setComponentID(componentID); } catch (Exception e) { e.printStackTrace(); }}private String getComponentID(ActionEvent event){ String componentID; return componentID;}private String getComponent_xCoord(ActionEvent event){ String component_xCoord; return component_xCoord;}private String getComponent_yCoord(ActionEvent event){ String component_yCoord; return component_yCoord;}}
