转换NSArray-> JSON-> NSData-> PHP服务器-> JSON表示

原来我需要这样做：

要创建我的数据：

NSMutableArray *arrayOfDicts = [[NSMutableArray alloc] init];for (int i = 0; i < 2; i++) {    NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys: @"MySong", @"title", @"MyArtist", @"artist", nil];    [arrayOfDicts addObject:dict];         } NSArray *info = [NSArray arrayWithArray:arrayOfDicts];

并发送如下：

NSData *jsonData = [NSJSonSerialization dataWithJSONObject:infooptions:NSJSonWritingPrettyPrinted error:&error];NSString *jsonString = [[NSString alloc] initWithdata:jsonData encoding:NSUTF8StringEncoding];    // Start request    NSURL *url = [NSURL URLWithString:@"http://www.mywebsite.com/index.php"];    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:url];    [request setPostValue:jsonString forKey:@"songs"];    [request setDelegate:self];    [request startAsynchronous];

关键是将信息转换为

NSData

NSData

谢谢大家的帮助！