ios - 将 NSData 转换为 NSDictionary

Question

我从 XML 文件中获取数据并将其存储在 NSData 对象中。我想将该 NSData 转换为 NSDictionary 并将该数据存储在 plist 中。

我的代码如下:

NSURL *url = [NSURL URLWithString:@"http://www.fubar.com/sample.xml"];
    NSData *data = [NSData dataWithContentsOfURL:url]; 
    NSLog(@"%@", data);

要转换数据，我正在使用:

- (NSDictionary *)downloadPlist:(NSString *)url {
    NSMutableURLRequest *request  = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:10]; 
    NSURLResponse *resp = nil;
    NSError *err = nil;
    NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&resp error:&err];

    if (!err) {
        NSString *errorDescription = nil;
        NSPropertyListFormat format;
        NSDictionary *samplePlist = [NSPropertyListSerialization propertyListFromData:responseData mutabilityOption:NSPropertyListImmutable format:&format errorDescription:&errorDescription];

        if (!errorDescription)
            return samplePlist;

        [errorDescription release];              
    }

    return nil;
}

谁能告诉我该怎么做？

Answer 1

或者这个:

NSString* dataStr  = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];   
SBJSON *jsonParser = [SBJSON new];
NSDictionary* result = (NSDictionary*)[jsonParser objectWithString:dataStr error:nil];
[jsonParser release];
[dataStr release];