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我使用下面的代碼來實現應用程序purchase.I已添加黑莓paymentapi.jar在我的項目中。我已引用這個代碼從下面鏈接：黑莓在應用程序購買getExistingPurchases和PaymentEngine.CONNECTION_MODE_LOCAL顯示錯誤
package mypackage;
import net.rim.device.api.ui.Field;
import net.rim.device.api.ui.FieldChangeListener;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.BasicEditField;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.RichTextField;
import net.rim.device.api.ui.container.HorizontalFieldManager;
import net.rim.device.api.ui.container.MainScreen;
import net.rimlib.blackberry.api.paymentsdk.PaymentEngine;
import net.rimlib.blackberry.api.paymentsdk.PaymentException;
import net.rimlib.blackberry.api.paymentsdk.Purchase;
import net.rimlib.blackberry.api.paymentsdk.PurchaseArgumentsBuilder;
public class PurchaseDemo extends UiApplication
{
public static void main(String[] args)
{
PurchaseDemo app = new PurchaseDemo();
app.enterEventDispatcher();
}
public PurchaseDemo()
{
pushScreen(new PurchaseDemoScreen());
}
private static class PurchaseDemoScreen extends MainScreen implements FieldChangeListener
{
private ButtonField buyButton;
private ButtonField displayButton;
private BasicEditField digitalGoodName;
private BasicEditField digitalGoodSku;
private PaymentEngine engine = PaymentEngine.getInstance();
public PurchaseDemoScreen()
{
setTitle("Payment Service SDK Demo");
if (engine != null)
{
engine.setConnectionMode(PaymentEngine.CONNECTION_MODE_LOCAL);
digitalGoodName = new BasicEditField("Digital Good Name: ",
"Sample Good");
add(digitalGoodName);
digitalGoodSku = new BasicEditField("Digital Good SKU: ",
"abc123");
add(digitalGoodSku);
HorizontalFieldManager hfm = new HorizontalFieldManager();
add(hfm);
buyButton = new ButtonField("Buy");
buyButton.setChangeListener(this);
hfm.add(buyButton);
displayButton = new ButtonField("Display Purchases");
displayButton.setChangeListener(this);
hfm.add(displayButton);
}
else
{
RichTextField errorMessage = new RichTextField("Sorry, in-app purchases are unavailable");
add(errorMessage);
}
}
public void fieldChanged(Field field, int context)
{
if (field == buyButton)
{
String name = digitalGoodName.getText();
String sku = digitalGoodSku.getText();
PurchaseArgumentsBuilder arguments = new PurchaseArgumentsBuilder()
.withDigitalGoodSku(sku)
.withDigitalGoodName(name)
.withMetadata(name)
.withPurchasingAppName("Payment Service SDK Demo");
try
{
Purchase purchase = engine.purchase(arguments.build());
Dialog.inform("Purchase of " + purchase.getMetadata()
+ " is successful.");
}
catch (IllegalArgumentException e)
{
Dialog.inform(e.getMessage());
}
catch (PaymentException e)
{
Dialog.inform(e.getMessage());
}
}
else if (field == displayButton)
{
try
{
Purchase[] purchases = engine.getExistingPurchases(true);
if (purchases.length != 0)
{
if (getFieldCount() > 3)
{
deleteRange(3, (getFieldCount()-3));
}
for (int i = 0; i < purchases.length; i++)
{
RichTextField purchaseRecord = new RichTextField("Name: "
+ purchases[i].getMetadata() + " SKU: "
+ purchases[i].getDigitalGoodSku());
add(purchaseRecord);
}
}
else
{
Dialog.inform("No existing purchases");
}
}
catch (PaymentException e)
{
Dialog.inform(e.getMessage());
}
}
}
}
}
在上面的代碼
engine.setConnectionMode(PaymentEngine.CONNECTION_MODE_LOCAL);
Purchase[] purchases = engine.getExistingPurchases(true);
表示紅色的錯誤。