我需要创建一个使用xml文件作为其DB的Web服务...即它包含所有细节。我需要获得vin号码或车辆名称或客户端的任何请求并处理它。然后将响应作为相应车辆的列表发送给客户。 所以我创建如下，但是当我尝试将DealerShowRoom对象作为参数传递或将对象返回给客户端时，我得到错误并警告JAX-RPC不支持List类型或ArrayList类型。我该如何向客户发送清单呢??? 我根据名为Processor的架构和服务类创建了jaxb类。它们如下：
package com.server;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class VehicleBean {
private String viNumber;
private String vehicleName;
/**
* @return the viNumber
*/
public String getViNumber() {
return viNumber;
}
/**
* @param viNumber the viNumber to set
*/
public void setViNumber(String viNumber) {
this.viNumber = viNumber;
}
/**
* @return the vehicleName
*/
public String getVehicleName() {
return vehicleName;
}
/**
* @param vehicleName the vehicleName to set
*/
public void setVehicleName(String vehicleName) {
this.vehicleName = vehicleName;
}
}
package com.server;
import java.util.ArrayList;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlElementWrapper;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
@XmlAccessorType(XmlAccessType.FIELD)
public class DealerShowRoom {
private String showRoomName;
private String showRoomLocation;
private ArrayList<VehicleBean> vehicleList;
/**
* @return the showRoomName
*/
public String getShowRoomName() {
return showRoomName;
}
/**
* @param showRoomName the showRoomName to set
*/
public void setShowRoomName(String showRoomName) {
this.showRoomName = showRoomName;
}
/**
* @return the showRoomLocation
*/
public String getShowRoomLocation() {
return showRoomLocation;
}
/**
* @param showRoomLocation the showRoomLocation to set
*/
public void setShowRoomLocation(String showRoomLocation) {
this.showRoomLocation = showRoomLocation;
}
/**
* @return the vehicleList
*/
public ArrayList<VehicleBean> getVehicleList() {
return vehicleList;
}
/**
* @param vehicleList the vehicleList to set
*/
public void setVehicleList(ArrayList<VehicleBean> vehicleList) {
this.vehicleList = vehicleList;
}
}
package com.server;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
public class Processor {
//All the necessary class variables that will consumed inside
JAXBContext context = null;
ArrayList<VehicleBean> vehicleList = null;
DealerShowRoom dealerShowRoomObj = null;
VehicleBean vehicleObj = null;
File flatFile_XML = null;
//The destination of the target flat file
private static final String fileName = "D:\\emulatedDB-jaxb.xml";
//----------------------------Include Vehicle----------------------------------------------------
//A Method to include a vehicle into a dealer's list of vehicles
public void includeVehicle(VehicleBean vehicle){
//Read the Dealer's object from the XML file
dealerShowRoomObj = xmlReader();
//Read the Dealer's list and add the current vehicle to that list
dealerShowRoomObj.getVehicleList().add(vehicle);
//Write the list back into the XML file
xmlWriter(dealerShowRoomObj);
}
//-----------------------------Remove Vehicle---------------------------------------------------
//A method to remove the vehicles from the dealer's list
public void removeVehicle(DealerShowRoom forRemovalobj){
//Dealer Object is added as the arguement with the thought that
//multiple vehicle deletion option might be needed in the future\
//So the collective VIN is set in the list of vehicle obj and sent as dealer object
//XML file is read and a Dealer Object is obtained
dealerShowRoomObj = xmlReader();
//The list of vehicles in the Original dealerObject is opened
ArrayList<VehicleBean> tempVehicleListOriginal = dealerShowRoomObj.getVehicleList();
//The list of vehicles in the Dealer object sent for removal is opened
ArrayList<VehicleBean> tempVehicleListProxy = forRemovalobj.getVehicleList();
//Dual loop running on the two lists
for(VehicleBean existingVehicle : tempVehicleListOriginal){
for(VehicleBean vehicleForRemoval : tempVehicleListProxy){
if(vehicleForRemoval.getViNumber() == existingVehicle.getViNumber()){
//Removing the objects from both the list to reduce the number
//of loops after every iteration
tempVehicleListOriginal.remove(existingVehicle);
tempVehicleListProxy.remove(vehicleForRemoval);
}
}
}
//setting the updated original list of vehicles in the dealer object
dealerShowRoomObj.setVehicleList(tempVehicleListOriginal);
//calling the XML writer to write the updated dealer object
//into the XML file
xmlWriter(dealerShowRoomObj);
}
//----------------------------------Update Vehicle-----------------------------------------------
//A method to update the details of a vehicle in the dealer's list
public void updateVehicleDetail(VehicleBean vehicle){
//get the vehicle object from the dealer's list
vehicleObj = getVehicle(vehicle);
//set the new data of the vehicle by over writing the existing data
//Any other variables that exist can be added later
vehicleObj.setVehicleName(vehicle.getVehicleName());
vehicleObj.setViNumber(vehicle.getViNumber());
//Now the change is done in the variables of the object existing in the dealer's list
//So the dealer object containing the list has to be written again to reflect the change
// in the XML file
xmlWriter(dealerShowRoomObj);
}
//--------------------------------Fetch Vehicle--------------------------------------------------
//A method to get the details of the given vehicle
public VehicleBean getVehicle(VehicleBean vehicle){
//XML file is read and a Dealer Object is obtained
dealerShowRoomObj = xmlReader();
//The list of vehicles in the dealerObject is opened
ArrayList<VehicleBean> tempVehicleList = dealerShowRoomObj.getVehicleList();
//A vehicle to hold the resulting vehicle object
VehicleBean currentVehicle = null;
//Each vehicle in the list of vehicles is iterated to obtain the one matching
for (VehicleBean tempVehicle : tempVehicleList) {
//If the viNumber matches, the vehicle is found
if(tempVehicle.getViNumber().equals(vehicle.getViNumber())){
//And it becomes the current vehicle
currentVehicle = tempVehicle;
break;
}
}
//return the current Vehicle to the caller
return currentVehicle;
}
//-----------------------------------XML Reader--------------------------------------------------
//A method to read the list of vehicles into the dealer's object
private DealerShowRoom xmlReader(){
//The XML file is read and placed in flatFile_XML
flatFile_XML = new File(fileName);
try {
//If flatFile_XML is not a new File
if(!flatFile_XML.createNewFile()){
context = JAXBContext.newInstance(DealerShowRoom.class);
Unmarshaller umObj = context.createUnmarshaller();
dealerShowRoomObj = (DealerShowRoom) umObj.unmarshal(flatFile_XML);
}else{
System.out.println("Sorry! The file is empty!!!");
}
} catch(JAXBException e){
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return dealerShowRoomObj;
}
//------------------------------------XML Writer-------------------------------------------------
//A method to write the dealer's list of vehicles into the XML file from the dealer's object
private void xmlWriter(DealerShowRoom dealerShowRoomObj){
//A method just to write the array list into the XML file
try {
context = JAXBContext.newInstance(DealerShowRoom.class);
Marshaller marshObj = context.createMarshaller();
//This is allign the XML file properly
marshObj.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
// Write to System.out
marshObj.marshal(dealerShowRoomObj, System.out);
// Write to File
marshObj.marshal(dealerShowRoomObj, flatFile_XML);
}
catch (JAXBException e) {
e.printStackTrace();
}
}
}