我一般都使用spring mvc。我正在生成登录页面，我的问题是，在我尝试登录后，它始终会将我重定向到notLoggedIn提示符。
@RequestMapping(value="/login", method= RequestMethod.POST) //login
public String logIn(HttpServletRequest request, HttpServletResponse response, ModelMap map) {
HttpSession session= request.getSession();
request.getSession().setAttribute("isLoggedIn", "true");
String uname=request.getParameter("userid");
String pword=request.getParameter("password");
boolean exists=logInService.checkLogIn(uname, pword);
if(exists){
session.setAttribute("userid", uname);
return "Users"; //return to next success login jsp
} else {
return "Interface2"; //return to Invalid username and password jsp
}
}
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
HttpSession session= request.getSession();
if(session.getAttribute("userid")!=null && session.getAttribute("isLoggedIn")!=null ){
System.out.println("Logged In");
}
else{
response.sendRedirect(request.getContextPath()+"/modulename/notLoggedIn");
System.out.println("Not logged in");
return false;
}
return true;
}
答案 0 :(得分：1)
您的拦截器阻止每个http请求并进行一些检查，但它实际上应该允许而不是检查登录 http请求。以下更改只是为了使用例工作。请参阅底部的说明以获取建议。
@IBAction func unlockRemoveAds(_ sender: Any) {
purchaseMyProduct(product: iapProducts[3])
}
@IBAction func unlockExtraLessons(_ sender: Any) {
purchaseMyProduct(product: iapProducts[0])
}
@IBAction func unlockExtraTests(_ sender: Any) {
purchaseMyProduct(product: iapProducts[1])
}
@IBAction func unlockFullPackageDeal(_ sender: Any) {
purchaseMyProduct(product: iapProducts[2])
}
@IBAction func restorePurchaseButt(_ sender: Any) {
SKPaymentQueue.default().add(self)
SKPaymentQueue.default().restoreCompletedTransactions()
}
func paymentQueueRestoreCompletedTransactionsFinished(_ queue: SKPaymentQueue) {
nonConsumablePurchaseMade = true
UserDefaults.standard.set(nonConsumablePurchaseMade, forKey: "nonConsumablePurchaseMade")
UIAlertView(title: "Grammar PRO!",
message: "You've successfully restored your purchase!",
delegate: nil, cancelButtonTitle: "OK").show()
}
func fetchAvailableProducts() {
let productIdentifiers = NSSet(objects:
removeAds,
extraLessonsDeal,
extraTestsDeal,
fullPackageDeal
)
print(productIdentifiers)
productsRequest = SKProductsRequest(productIdentifiers: productIdentifiers as! Set<String>)
productsRequest.delegate = self
productsRequest.start()
}
func productsRequest (_ request:SKProductsRequest, didReceive response:SKProductsResponse) {
if (response.products.count > 0) {
iapProducts = response.products
// Remove Ads Deal
let removeAdsDeal = response.products[3] as SKProduct
let numberFormatter = NumberFormatter()
numberFormatter.formatterBehavior = .behavior10_4
numberFormatter.numberStyle = .currency
numberFormatter.locale = removeAdsDeal.priceLocale
categ1Price.text = numberFormatter.string(from: removeAdsDeal.price)
// ExtraLessonDeal
let ExtraLessonDeal = response.products[0] as SKProduct
numberFormatter.locale = ExtraLessonDeal.priceLocale
categ2Price.text = numberFormatter.string(from: ExtraLessonDeal.price)
// ExtraTestDeal
let ExtraTestDeal = response.products[1] as SKProduct
numberFormatter.locale = ExtraTestDeal.priceLocale
categ3Price.text = numberFormatter.string(from: ExtraTestDeal.price)
// FullPackageDeal
let FullPackageDeal = response.products[2] as SKProduct
numberFormatter.locale = FullPackageDeal.priceLocale
categ4Price.text = numberFormatter.string(from: FullPackageDeal.price)
}
}
// MARK: - MAKE PURCHASE OF A PRODUCT
func canMakePurchases() -> Bool { return SKPaymentQueue.canMakePayments() }
func purchaseMyProduct(product: SKProduct) {
if self.canMakePurchases() {
let payment = SKPayment(product: product)
SKPaymentQueue.default().add(self)
SKPaymentQueue.default().add(payment)
print("PRODUCT TO PURCHASE: \(product.productIdentifier)")
productID = product.productIdentifier
print(productID)
// IAP Purchases dsabled on the Device
} else {
UIAlertView(title: "Sorry!",
message: "Purchases are disabled in your device!",
delegate: nil, cancelButtonTitle: "OK").show()
}
}
// MARK:- IAP PAYMENT QUEUE
func paymentQueue(_ queue: SKPaymentQueue, updatedTransactions transactions: [SKPaymentTransaction]) {
//print("add paymnet")
//print(extraLessonsDeal)
for transaction:AnyObject in transactions {
if let trans = transaction as? SKPaymentTransaction {
// print(trans.error)
switch trans.transactionState {
case .purchased:
if productID == removeAds {
print("remove ads")
e_1_dbhelper.updateNoAds()
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
UIAlertView(title: "Thank you for your purchase :-)",
message: "You've successfully removed ads!",
delegate: nil,
cancelButtonTitle: "OK").show()
let secondViewController:UIViewController = a_1_meniu()
self.present(secondViewController, animated: false, completion: nil)
}
else if productID == "com.labsterzz.extraLessonsDeal" {
print("extra lessons")
e_1_dbhelper.updateNoAds()
e_1_dbhelper.updateExtraLessons()
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
UIAlertView(title: "Thank you for your purchase :-)",
message: "You've successfully unlocked Extra Lessons Deal!",
delegate: nil,
cancelButtonTitle: "OK").show()
let secondViewController:UIViewController = b_2_learning()
let navigationController = UINavigationController(rootViewController: secondViewController)
self.present(navigationController, animated: false, completion: nil)
}
else if productID == extraTestsDeal {
print("extra tests")
e_1_dbhelper.updateNoAds()
e_1_dbhelper.updateExtraTests()
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
UIAlertView(title: "Thank you for your purchase :-)",
message: "You've successfully unlocked Extra Tests Deal!",
delegate: nil,
cancelButtonTitle: "OK").show()
let secondViewController:UITableViewController = b_1_choose_test()
let navigationController = UINavigationController(rootViewController: secondViewController)
self.present(navigationController, animated: false, completion: nil)
}
else if productID == fullPackageDeal {
print("full package")
e_1_dbhelper.updateNoAds()
e_1_dbhelper.updateExtraLessons()
e_1_dbhelper.updateExtraTests()
e_1_dbhelper.updateFullPackage()
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
UIAlertView(title: "Thank you for your purchase :-)",
message: "You've successfully unlocked Full Package Deal!",
delegate: nil,
cancelButtonTitle: "OK").show()
let secondViewController:UIViewController = a_1_meniu()
self.present(secondViewController, animated: false, completion: nil)
}
// SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
// break;
case .failed:
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
break
case .restored:
SKPaymentQueue.default().finishTransaction(transaction as! SKPaymentTransaction)
break
case .deferred:
break
case .purchasing:
break
default:
print((transaction.transactionState.rawValue))
}}}
}
注意：您可以重新安排登录http请求检查，以避免已登录用户的登录请求。