Question

我想这应该是相当简单的，因为我是Xcode，Objective-C和SQLite的新手，我只想尝试一个简单的教程。

我复制了＆＃34; sampled.sql＆＃34;文件到目录，这是连接的代码：

-(NSMutableArray *) authorList {
theauthors = [[NSMutableArray alloc] initWithCapacity:10];
@try {
    NSFileManager *fileMgr = [NSFileManager defaultManager];
    NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"sampledb.sql"];
    BOOL success = [fileMgr fileExistsAtPath:dbPath];
    if(!success)
    {
        NSLog(@"Cannot locate database file '%@'.", dbPath);
    }
    if(!(sqlite3_open([dbPath UTF8String], &db) == SQLITE_OK))
    {
        NSLog(@"An error has occured: %s", sqlite3_errmsg(db));

    }

    const char *sql = "SELECT * FROM verb";

    sqlite3_stmt *sqlStatement;

    if(sqlite3_prepare(db, sql, -1, &sqlStatement, NULL) != SQLITE_OK)
    {
        NSLog(@"Problem with prepare statement 1:  %s", sqlite3_errmsg(db));
    } else {

        while (sqlite3_step(sqlStatement)==SQLITE_ROW) {
            Author * author = [[Author alloc] init];
            author.verb_nutid = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,1)];
            //author.title = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,2)];
            [theauthors addObject:author];
        }
    }
    sqlite3_finalize(sqlStatement);
}
@catch (NSException *exception) {
    NSLog(@"Problem with prepare statement 2:  %s", sqlite3_errmsg(db));
}
@finally {
    sqlite3_close(db);
    return theauthors;
}

}

数据库文件：

BEGIN TRANSACTION

CREATE TABLE＆＃34;动词＆＃34; （＆＃39; ID＆＃39; INTEGER PRIMARY KEY AUTOINCREMENT，＆＃39; verba＆＃39; TEXT，＆＃39; verbb＆＃39; TEXT）; INSERT INTO＆＃39;动词＆＃39;价值观......

等等......

但我收到错误：

准备语句1的问题：文件已加密或不是数据库

非常感谢帮助！（ - ：

Answer 1

尝试将sampledb.sql写入documents directory而不是bundle directory：

// Getting the documents directory path
NSString *docsDir;
NSArray *dirPaths;
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];

// Getting your db's path
NSString *dbPath = [docsDir stringByAppendingPathComponent:@"sampledb.sql"];

没有办法写入bundle目录，因为它的代码是用SSL证书签名的。但文件目录不是。

SQLite＆＃34;文件已加密或不是数据库＆＃34;

1 个答案: