iOS development JSON data file access

将Json存进本地文件夹 NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);      NSString *path=[paths objectAtIndex:0];      NSString *Json_path=[path stringByAppendingPathComponent:@ "JsonFile.json" ];      //==写入文件      NSLog(@ "%@" ,[JsonData writeToFile:Json_path atomically:YES] ? @ "Succeed" :@ "Failed" ); ----------------------- 读取Json //==Json文件路径      NSArray *paths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);      NSString *path=[paths objectAtIndex:0];      NSString *Json_path=[path stringByAppendingPathComponent:@ "JsonFile.json" ];      //==Json数据      NSData *data=[NSData dataWithContentsOfFile:Json_path];      //==JsonObject      id JsonObject=[NSJSONSerialization JSONObjectWithData:data                                                     options:NSJSONReadingAllowFragments                                                       error:&error]    //nslog (@"%@",jsonobject);打印json字典

iOS development JSON data file access