目录：
1、保存数据到本地
2、读取本地数据
3、更新本地数据
4、清空本地指定数据
1、保存数据到本地
/*
*存储数据到plist、userDefault、db
*
*@param dataDic
* 要存储的数据，即将要存储的数据拼装成NSMutableDictionary，将其传入方法
*
*@param cacheType
*类型有三种：DataModePlist：plist，
DataModeUserDefault：userDefault，
DataModeDB：db
*
*@param name
* 为自己要存储的数据起个名称，以后方便找到
*
*@调用举例
* NSMutableDictionary* dict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"a",@"A",@"b",@"B",@"c",@"C" nil];
[StaticTools saveData:dict cacheType:DataModePlist dataName:@"test"];
*
*@返回值 BOOL
* YES：成功
NO：失败
*
*@说明
* 如果存入db，则该数据字典每个元素必须是nsstring，并且与所建表中个数相同，如建表时有A,B,C三列，只希望A,C列有值，则B列传入@“”
eg:
NSMutableDictionary* dict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"a",@"A",@"",@"B",@"c",@"C" nil];
[StaticTools saveData:dict cacheType:DataModePlist dataName:@"test"];
*/
+ (BOOL)saveData:(NSMutableDictionary *)dataDic cacheType:(DataMode)cacheType dataName:(NSString*)name
{
if ([dataDic count] == 0 || !dataDic)
{
return NO;
}
//Plist
if (cacheType == DataModePlist)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path_ = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.plist",name]];
NSMutableDictionary *tempDictionary = [NSMutableDictionary dictionaryWithContentsOfFile:path_];
if (!tempDictionary)
{
tempDictionary = [NSMutableDictionary dictionaryWithCapacity:0];
}
[tempDictionary setObject:dataDic forKey:name];
[tempDictionary writeToFile:path_ atomically:YES];
return YES;
}
//UserDefault
else if (cacheType ==DataModeUserDefault)
{
NSUserDefaults* muDefault = [NSUserDefaults standardUserDefaults];
[muDefault setObject:dataDic forKey:name];
return YES;
}
//DB
// else if (cacheType ==DataModeDB){
// DBSqlite* dbt = [[[DBSqlite alloc] init] autorelease];
// return [dbt insert2DB:dataDic tableName:name];
// }
//其他
else{
NSLog(@"SaveDataMode Error");
return NO;
}
}
2、读取本地数据
/*
*从plist、userDefault、db中读取数据
*
*@param cacheType
* 类型有三种：DataModePlist：plist，
DataModeUserDefault：userDefault，
DataModeDB：db
*
*@param name
* 用存储时的名字读取
*
*@调用举例
* [StaticTools readData:DataModePlist dataName:@"test"];
*
*@返回值 BOOL
* YES：成功
NO：失败
*
*@说明
* 若读取DB，返回该表中所有的记录，类型为NSArray，数组中每条为一个NSMutableDictionary,为了和plist和userDefault统一，方法整体返回为NSMutableDictionary，用参数name的值取得数组
*/
+(NSMutableDictionary*)readData:(DataMode)cacheType dataName:(NSString*)name
{
//for analyze
NSMutableDictionary *cacheDict = [NSMutableDictionary dictionaryWithCapacity:0];
if ([name length] == 0)
return cacheDict;
//Plist
if (cacheType == DataModePlist)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path_ = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.plist",name]];
if (![[NSFileManager defaultManager] fileExistsAtPath:path_])
{
[cacheDict writeToFile:path_ atomically:YES];
}
else
{
//for analyze
// NSMutableDictionary *tempDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:path_];
NSMutableDictionary *tempDictionary = [NSMutableDictionary dictionaryWithContentsOfFile:path_];
cacheDict = [tempDictionary objectForKey:name];
}
}
//UserDefault
else if (cacheType ==DataModeUserDefault)
{
NSUserDefaults* muDefault = [NSUserDefaults standardUserDefaults];
cacheDict = [muDefault objectForKey:name];
NSMutableDictionary* dict = [NSMutableDictionary dictionaryWithDictionary:cacheDict];
return dict;
}
//DB
else if (cacheType ==DataModeDB)
{
// DBSqlite* dbt = [[DBSqlite alloc] init];
// [cacheDict setObject:[dbt readDB:name] forKey:name];
// [dbt release];
}
//其他
else
{
NSLog(@"ReadDataMode Error");
}
return cacheDict;
}
3、更新本地存储的数据
/*
*从plist、userDefault、db中更新数据
*
*@param newDataDic
* 想要更新的数据，类型为NSMutableDictionary
*
*@param cacheType
* 类型有三种：DataModePlist：plist，
DataModeUserDefault：userDefault，
DataModeDB：db
*
*@param name
* 用存储时的名字更新
*
*@param dbWhere
* 更新条件，类型为NSMutableDictionary
*
*@返回值 BOOL
* YES：成功
NO：失败
*
*@调用举例
* [StaticTools updateData:new cacheType:DataModePlist name:@"test" DBWhere:nil];
*
*@说明
* 若更新plist或userDefault，则dbWhere参数传入nil
eg: NSMutableDictionary* new = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"e",@"A", nil];
[StaticTools updateData:new cacheType:DataModePlist name:@"test" DBWhere:nil];
若为db
eg: NSMutableDictionary* new = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"e",@"A", nil];
NSMutableDictionary* where = [[NSMutableDictionary alloc] initWithObjectsAndKeys:@"b",@"B", nil];
[StaticTools updateData:new cacheType:DataModeDB name:@"test" DBWhere:where];
*/
+ (BOOL)updateData:(NSMutableDictionary *)newDataDic cacheType:(DataMode)cacheType name:(NSString*)name DBWhere:(NSMutableDictionary*)dbWhere
{
if ([newDataDic count] == 0 || !newDataDic)
{
return NO;
}
//Plist
if (cacheType == DataModePlist)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *DocumentsPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.plist",name]];
if ([[NSFileManager defaultManager] fileExistsAtPath:DocumentsPath])
{
[[NSFileManager defaultManager] removeItemAtPath:DocumentsPath error:nil];
}
NSMutableDictionary *tempDictionary = [[NSMutableDictionary alloc] initWithContentsOfFile:DocumentsPath];
if(!tempDictionary)
{
tempDictionary = [[NSMutableDictionary alloc] init];
}
[tempDictionary setObject:newDataDic forKey:name];
[tempDictionary writeToFile:DocumentsPath atomically:YES];
return YES;
}
//UserDefault
else if (cacheType ==DataModeUserDefault)
{
NSUserDefaults* muDefault = [NSUserDefaults standardUserDefaults];
[muDefault setObject:newDataDic forKey:name];
return YES;
}
//DB
// else if (cacheType ==DataModeDB){
// DBSqlite* dbt = [[[DBSqlite alloc] init] autorelease];
// return [dbt updateData:newDataDic name:name DBWhere:dbWhere];
// }
//其他
else
{
NSLog(@"SaveDataMode Error");
return NO;
}
}
4、清空本地指定数据
/*
*清空plist、userDefault、db中指定名称的数据
*
*@param cacheType
* 类型有三种：DataModePlist：plist，
DataModeUserDefault：userDefault，
DataModeDB：db
*
*@param name
* 要删除数据的名称，即存储时传入的名称
*
*@返回值 BOOL
* YES：成功
NO：失败
*
*@调用举例
* [StaticTools clearData:DataModePlist dataName:@"test"];
*/
+(BOOL)clearData:(DataMode)cacheType dataName:(NSString*)name
{
//Plist
if (cacheType == DataModePlist)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *DocumentsPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.plist",name]];
if ([[NSFileManager defaultManager] fileExistsAtPath:DocumentsPath])
{
[[NSFileManager defaultManager] removeItemAtPath:DocumentsPath error:nil];
}
return YES;
}
//UserDefault
else if (cacheType ==DataModeUserDefault)
{
NSUserDefaults* muDefault = [NSUserDefaults standardUserDefaults];
[muDefault removeObjectForKey:name];
return YES;
}
//DB
// else if (cacheType ==DataModeDB){
// DBSqlite* dbt = [[[DBSqlite alloc] init] autorelease];
// return [dbt clearData:name];
// }
//其他
else
{
NSLog(@"ReadDataMode Error");
return NO;
}
}
