使用AFNetworking解析XML

我对iOS很新,并且正在尝试执行REST请求并获取一些XML数据,解析它并理想地放入自定义对象.但是现在我仍然坚持获取XML数据.

我在Github/AFNetworking上找到了这段代码片段.

- (void) fetchInterestData{
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFXMLResponseSerializer new];
NSDictionary *parameters = @{@"foo": @"bar"};
[manager POST:@"http://www.raywenderlich.com/downloads/weather_sample/weather.php?format=json" parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSLog(@"JSON: %@", responseObject);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];
}

它工作并获取JSON对象.但我想得到XML ..

如果我使用http://www.raywenderlich.com/downloads/weather_sample/weather.php?format=xml而不是xml对象.但现在代码完全崩溃了.我希望至少将xml作为字符串对象.

我需要更改什么来获取xml并假设我想获取以下结构的xml对象:

  
   17
   Bluestep
   http://www.bluestep.se
   
   http://smartkalkyl.se/smartfiles/layout/banklogos/bluestep.png
   
   
       
          2013-12-05
          5
          6,23
          
          6,27
          False
          2013-08-13
     
   
   
   
   ...

我怎样才能做到这一点？

更新:新代码..

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFHTTPRequestSerializer * requestSerializer = [AFHTTPRequestSerializer serializer];
NSString *ua = @"Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25";
[requestSerializer setValue:ua forHTTPHeaderField:@"User-Agent"];
[requestSerializer setValue:@"application/xml" forHTTPHeaderField:@"Content-type"];
manager.requestSerializer = requestSerializer;

NSDictionary *parameters = @{@"foo": @"bar"};


[manager POST:@"http://smartkalkyl.se/rateapp.aspx?user=xxxx&pass=xxx"
   parameters:parameters
success:^(AFHTTPRequestOperation *operation, id responseObject) {
    NSData * data = (NSData *)responseObject;
    self.fetchedXML = [NSString stringWithUTF8String:[data bytes]];
    //NSLog(@"Response string: %@", self.fetchedXML);
}
failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

但这给了我一个错误..

2013-12-06 00:04:10.657 TabbedDemo[38335:a0b] Error: Error Domain=AFNetworkingErrorDomain Code=-1016 "Request failed: unacceptable content-type: text/xml" UserInfo=0x8d80ac0 {NSErrorFailingURLKey=http://smartkalkyl.se/rateapp.aspx?user=xxxx&pass=xxxx, AFNetworkingOperationFailingURLResponseErrorKey= { URL: http://smartkalkyl.se/rateapp.aspx?user=xxxx&pass=xxxx } { status code: 200, headers {
"Cache-Control" = private;
"Content-Encoding" = deflate;
"Content-Length" = 1260;
"Content-Type" = "text/xml; charset=iso-8859-1";
Date = "Thu, 05 Dec 2013 23:03:47 GMT";
Server = "Microsoft-IIS/7.5";
"Set-Cookie" = "ASP.NET_SessionId=ad3zikxbh4bcawxulkhwt2j3; path=/; HttpOnly";
"X-AspNet-Version" = "4.0.30319";
"X-Powered-By" = "UrlRewriter.NET 2.0.0, ASP.NET";
} }, NSLocalizedDescription=Request failed: unacceptable content-type: text/xml}

知道可能是什么问题吗？

我在Android版本的应用程序中进行类似的操作,这是在那里工作的代码.我从来没有设置任何内容类型..

// defaultHttpClient
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpProtocolParams.setUserAgent(httpClient.getParams(),
System.getProperty("http.agent"));
HttpPost httpPost = new HttpPost(url);

HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);

KaosDG.. 17

根据您更新的代码,您需要添加响应序列化程序,还需要正确翻译NSData:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
AFHTTPRequestSerializer * requestSerializer = [AFHTTPRequestSerializer serializer];
AFHTTPResponseSerializer * responseSerializer = [AFHTTPResponseSerializer serializer];

NSString *ua = @"Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5376e Safari/8536.25";
[requestSerializer setValue:ua forHTTPHeaderField:@"User-Agent"];
//    [requestSerializer setValue:@"application/xml" forHTTPHeaderField:@"Content-type"];
responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/xml", nil];
manager.responseSerializer = responseSerializer;
manager.requestSerializer = requestSerializer;

NSDictionary *parameters = @{@"foo": @"bar"};

[manager POST:@"http://smartkalkyl.se/rateapp.aspx?user=xxxxx&pass=xxxxxx"
   parameters:parameters
      success:^(AFHTTPRequestOperation *operation, id responseObject) {
          NSData * data = (NSData *)responseObject;
          self.fetchedXML = [NSString stringWithCString:[data bytes] encoding:NSISOLatin1StringEncoding];
          NSLog(@"Response string: %@", self.fetchedXML);
      }
      failure:^(AFHTTPRequestOperation *operation, NSError *error) {
          NSLog(@"Error: %@", error);
      }];

您的响应将以text/xml的形式返回,并且需要将默认响应序列化程序设置为接受该响应.

数据不是以UTF8而是以ascii形式返回,因此我们也需要适当地设置.

我在模拟器中试了一下,它正在我的工作.

编辑:似乎数据是ISO latin-1格式.我的错.