数据库与FMDB打开连接时出错

当我要打开连接数据库时，控制台显示：“error opening !: 14”。我在我的项目的文件夹资源中包含“mybase.sqlite”，并使用FMDB框架。数据库与FMDB打开连接时出错

对于开放连接我用这个代码：

NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];  
    FMDatabase* db = [FMDatabase databaseWithPath:@"/mybase.sqlite"]; 
    if (![db open]) { 
     NSLog(@"Não abriu o banco de dados."); 
     [pool release]; 
     return 0; 
    }

在AppDelegate中，我包括在此代码：

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary 
*)launchOptions {  

    // Override point for customization after application launch. HomeViewController *homeVC = [[HomeViewController alloc] init]; navigationController = [[UINavigationController alloc] initWithRootViewController:homeVC]; [self createEditableCopyOfDatabaseIfNeeded]; [window addSubview:navigationController.view]; 
    [window makeKeyAndVisible]; 
    return YES; } 

- (void)createEditableCopyOfDatabaseIfNeeded{ BOOL success; NSFileManager 
*fileManager = [NSFileManager defaultManager]; NSError *error; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString 
*documentsDirectory = [paths objectAtIndex:0]; NSString 
*writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"mybase.sqlite"]; success = [fileManager fileExistsAtPath:writableDBPath]; NSLog(@"Success %d", success); if (success) return; NSString 
*defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"mybase.sqlite"]; success = [fileManager copyItemAtPath:defaultDBPath toPath:writableDBPath error:&error]; if (!success) { NSAssert1(0, @"Failed to create writable database file with message '%@'.", [error localizedDescription]); } }

来源

2010-12-02 Lucas Santos

卢卡斯你应该将答案标记为接受，因为它回答了你的问题。 – 2012-09-22 16:14:42

@LucasMoreria这仍然没有被接受？这是一个完美的答案。 – MackieeE 2014-05-02 22:36:31

我觉得你的开放路径可能不正确。您正在指定一个无意义的路径，就好像您的数据库文件位于根文件夹中一样。

FMDatabase* db = [FMDatabase databaseWithPath:@"/mybase.sqlite"];

以上应使用此代码的文件路径，你已经在这个问题。

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); 
NSString *documentsDirectory = [paths objectAtIndex:0]; 
NSString *writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"mybase.sqlite"]; 
FMDatabase* db = [FMDatabase databaseWithPath:writableDBPath];

来源

2010-12-02 21:59:04 slycrel

数据库与FMDB打开连接时出错

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