-(int)create:(Note *)model{NSString *homeDictionary = NSHomeDirectory();NSString *path = [homeDictionary stringByAppendingPathComponent:FILE_NAME];NSFileManager *fileManager = [NSFileManager defaultManager];BOOL isexists = [fileManager fileExistsAtPath:path];NSMutableArray *array = [[NSMutableArray alloc] init];[array addObject:model];//archive归档NSMutableData *theData = [NSMutableData data];NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:theData];[archiver encodeObject:array forKey:ARCHIVE_KEY];[archiver finishEncoding];[theData writeToFile:path atomically:YES];//    [array writeToFile:path atomically:YES];return 0;}

-(NSMutableArray *)findAll{NSString *homeDictionary = NSHomeDirectory();NSString *path = [homeDictionary stringByAppendingPathComponent:FILE_NAME];NSMutableArray *listData = [[NSMutableArray alloc] init];NSData *theData = [NSData dataWithContentsOfFile:path];if([theData length]>0){NSKeyedUnarchiver *archiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:theData];listData = [archiver decodeObjectForKey:ARCHIVE_KEY];[archiver finishDecoding];}return listData;}

//自动登陆用到的+(id)configForKey:(NSString *)key{NSUserDefaults* defaults = [NSUserDefaults standardUserDefaults];return [defaults objectForKey:key];}//写入内容+(void)setLoginConfig:(id)value forKey:(NSString *)key{NSUserDefaults *user = [NSUserDefaults standardUserDefaults];[user setObject:value forKey:key];[user synchronize];   //及时强制写入}//读出内容+(NSString *)getLoginConfig:(NSString *)key{NSString *s = [Globle  configForKey:key];if(s==nil){return @"";}return s;}

 @interface BaseViewController (){sqlite3 *sqlDataBase;}@end@implementation BaseViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];if (self) {// Custom initialization}return self;}- (void)viewDidLoad{[super viewDidLoad];if ([self createOrOpen:@"test.db"]) {//        [self createUserTable:sqlDataBase];//        [self insertMBkey:nil];NSMutableArray *s = [NSMutableArray new];[self GetList:s];NSLog(@"%@",s);}else{NSLog(@"FAIL");}}

/***该函数主要打开数据库myDataBase.sql,如果该数据库不存在，则进行创建*打开或者创建成功返回yes,否则返回false，参数dbName是数据库的名称**/-(BOOL)createOrOpen:(NSString *)dbName{//获取用户域覆径信息NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocuemntDirectory, NSUserDomainMask, YES);

    NSString *documentsDirectory = [paths objectAtIndex:0];/***Users/admin/Library/Application Support/iPhone Simulator/7.1/Applications/8E23557E-AAA6-471A-AAFE-E036BF1B7E4C/Library/Documentation*判断用户域是否有数据库dbNmae*/NSString *path = [documentsDirectory stringByAppendingPathComponent:dbName];NSFileManager *fileManageer = [NSFileManager defaultManager];//如果用户域内有该数据库，则返回yes，否则返回NOBOOL find = [fileManageer fileExistsAtPath:path];if(find)   //对找到进行处理，如果找到了，并且打开了，则返回yes{//打开该数据库，如果打开失败，则返回NO，否则返回yesif(sqlite3_open([path UTF8String], &sqlDataBase)!= SQLITE_OK){//关闭sqlDataBase，实际是释放了它sqlite3_close(sqlDataBase);return NO;}return YES;}NSLog(@"%d",sqlite3_open([path UTF8String], &sqlDataBase));//创建数据库，创建返回yes，并且打开数据库，否则返回NOif(sqlite3_open([path UTF8String], &sqlDataBase)==SQLITE_OK){return YES;}else{//关闭sqlDataBase，实际是释放了它sqlite3_close(sqlDataBase);return NO;}return NO;
}
//在打开的数据库中创建表，其中sqldb为成功打开的数据库的sqlite3对象
-(BOOL)createUserTable:(sqlite3 *)sqlDataBas{//设置sql语句char *sql = "create table user(id integer primary key, name text, address text, imageData BLOB, imageLen integer)";sqlite3_stmt *statement;  //这个相当于ODBC的Command对象，用于保存编译好的SQL语句//进行预处理，预处理失败返回NOif(sqlite3_prepare_v2(sqlDataBase, sql, -1, &statement, nil)!=SQLITE_OK){return NO;}//预处理成功，进行执行创建操作int success = sqlite3_step(statement);sqlite3_finalize(statement);if(success !=SQLITE_DONE){return NO;}return YES;}//向表中插入数据-(void)insertMBkey:(NSString *)key{BOOL isOK = NO;sqlite3_stmt *statement;static char *sql = "INSERT INTO user VALUES ('1', 'Bill', '河南', 'ssss','2')";int success = sqlite3_prepare_v2(sqlDataBase, sql, -1, &statement, NULL);if(success !=SQLITE_OK){isOK = NO;}else{sqlite3_bind_text(statement, 1, [key UTF8String], -1, SQLITE_TRANSIENT);success = sqlite3_step(statement);sqlite3_finalize(statement);}if(success ==SQLITE_ERROR){isOK = NO;}else{isOK=YES;}return;}//查询数据-(void)GetList:(NSMutableArray *)KeysList{BOOL  isOK = NO;sqlite3_stmt *statement;static char *sql = "select id,address from user";int success = sqlite3_prepare_v2(sqlDataBase, sql, -1, &statement, NULL);if(success !=SQLITE_OK){isOK = NO;}else{//查询结果集中一条一条地遍历所有记录，这里的数字对应的时列值while (sqlite3_step(statement)==SQLITE_ROW) {int kid = sqlite3_column_int(statement, 0);char *key = (char  *)sqlite3_column_text(statement, 1);UserInfo *userModel = [[UserInfo alloc] init];userModel.userId =kid;if (key) {userModel.userAddress = [NSString stringWithUTF8String:key];}[KeysList addObject:userModel];sqlite3_finalize(statement);}NSLog(@"%@",KeysList);if(success==SQLITE_ERROR){isOK = NO;}else{isOK = YES;}return;}}