考虑到之前苹果提供的各种方法随着系统版本的更新都被淘汰掉了，在网上找到了一种方法：利用keychain和UUID永久获得设备的唯一标识。
这里使用的一个第三方库，导入之后方便项目中使用 SAMKeyChains
//保存一个UUID字符串到钥匙串： CFUUIDRef uuid = CFUUIDCreate(NULL); assert(uuid != NULL); CFStringRef uuidStr = CFUUIDCreateString(NULL, uuid); [SAMKeychain setPassword: [NSString stringWithFormat:@"%@", uuidStr] forService:@"com.yourapp.yourcompany"account:@"user"]; //从钥匙串读取UUID： NSString *retrieveuuid = [SAMKeychain passwordForService:@"com.yourapp.yourcompany"account:@"user"]; **注意: setPassword和passwordForSevice方法中的**services 和 accounts 参数应该是一致的。 基本的实现思路便是这样，下面是具体的一种具体实现代码，仅供参考 + (NSString *)getDeviceId { NSString * currentDeviceUUIDStr = [SAMKeychain passwordForService:@" "account:@"uuid"]; if (currentDeviceUUIDStr == nil || [currentDeviceUUIDStr isEqualToString:@""]) { NSUUID * currentDeviceUUID = [UIDevice currentDevice].identifierForVendor; currentDeviceUUIDStr = currentDeviceUUID.UUIDString; currentDeviceUUIDStr = [currentDeviceUUIDStr stringByReplacingOccurrencesOfString:@"-" withString:@""]; currentDeviceUUIDStr = [currentDeviceUUIDStr lowercaseString]; [SAMKeychain setPassword: currentDeviceUUIDStr forService:@" "account:@"uuid"]; } return currentDeviceUUIDStr; }