Question

我想访问一个webservice，想传递2个参数。

当我运行下面的代码时，会显示以下错误：

@countryname not supplied

我已将2个参数传递为txtcity和txtcountry。

-(IBAction)FindWords:(id)sender
{
NSString *soapMsg =    
[NSString stringWithFormat:  

 @"<?xml version=\"1.0\" encoding=\"utf-8\"?>"

 "<soap:Envelope xmlns:xsi=" 

 "\"http://www.w3.org/2001/XMLSchema-instance\" "

 "xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" " 

 "xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"

 "<soap:Body>"

 "<GetWeather xmlns=\"http://www.webserviceX.NET/\">"

 "<CityName>%@</CityName>"

 "<CountryName>%@</CountryName>"

 "</GetWeather>"  

 "</soap:Body>"

 "</soap:Envelope>", txtCity.text,txtCounrty.text];

//---print it to the Debugger Console for verification---
NSLog(@"%@",soapMsg);

NSURL *url = [NSURL URLWithString:
              @"http://www.webservicex.net/globalweather.asmx"];

NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
              //---set the various headers---
              NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMsg length]];
 NSLog(@"WebData....%@",soapMsg);
              [req addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
              [req addValue:@"http://www.webserviceX.NET/GetWeather" forHTTPHeaderField:@"SOAPAction"];

               [req addValue:msgLength forHTTPHeaderField:@"Content-Length"];

               //---set the HTTP method and body---

               [req setHTTPMethod:@"POST"];

               [req setHTTPBody:[soapMsg dataUsingEncoding:NSUTF8StringEncoding]];

               //---start animating--
               [activityIndicator startAnimating];

               conn = [[NSURLConnection alloc] initWithRequest:req                                                          delegate:self];

               if(conn)
               {                   
               webData = [[NSMutableData data] retain];

                    NSLog(@"WebDatanew....%@",webData);

               }
}

Answer 1

只包括ASIHTTPRequest.Its更容易使用。

http://allseeing-i.com/ASIHTTPRequest/

Answer 2

Web服务有三个参数：

rw_app_id: The unique identifier for the app. If you’ve been following along with the previous tutorial, there should be only one entry so far, App ID #1.
code: The code to attempt to redeem. This should be a string that’s entered by the user.
device_id: The device ID that is attempting to redeem this code. We can get this with an easy API call.

使用： - ASIHTTPRequest

Answer 3

更改soapMsg格式：

NSString *soapMsg = [NSString stringWithFormat:
                         @"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
                         "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"
                         "<soap:Body>\n"
                         "<GetWeather xmlns=\"http://www.webserviceX.NET\">\n"
                         "<CityName>%@</CityName>"
                         "<CountryName>%@</CountryName>\n"
                         "</GetWeather>\n"
                         "</soap:Body>\n"
                         "</soap:Envelope>\n",txtCity.text,txtCounrty.text];

Answer 4

使用ASIHTTP请求和JSON库与您的Web服务进行通信。 JSON比XML feed更好，而且非常容易处理。

下载JSON库form Here

以下是ASIHTTP申请的文件： - http://allseeing-i.com/ASIHTTPRequest/

希望这会对你有所帮助。谢谢

Answer 5

可能这可以帮到你。它包含一个参数

-(void)serverconnection{

   NSString *CountryName=@"India";

    NSString *soapMessage = [NSString stringWithFormat:@"<?xml version=\"1.0\" encoding=\"utf-8\"?>"
                             "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"
                             "<soap:Body>"
                             "< GetWeather xmlns=\"http://tempuri.org/\">"
                             "<CountryName>%@</CountryName>"
                             "</GetWeather >"
                             "</soap:Body>"
                             "</soap:Envelope>",CountryName];

    NSURL *myNSUObj=[NSURL URLWithString:@"http://www.webservicex.net/globalweather.asmx?op=GetCitiesByCountry"];
    // NSURLRequest *myNSURequestObj=[NSURLRequest requestWithURL:myNSUObj];

    NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:myNSUObj];
    NSString *msgLength = [NSString stringWithFormat:@"%lu", (unsigned long)[soapMessage length]];

    [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    [theRequest addValue: @"http://tempuri.org/GetWeather" forHTTPHeaderField:@"SOAPAction"];
    [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
    [theRequest setHTTPMethod:@"POST"];
    [theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];

    myNSUConnectionObj=[[NSURLConnection alloc]initWithRequest:theRequest delegate:self];
    NSLog(@"Data =%@",myNSUConnectionObj);
    if(myNSUConnectionObj)
    {

        NSLog(@"successful connection");
        myNSMDataFromServer=[[NSMutableData alloc]init];
    }
}

您的网络服务有所不同，但这可能会让您有所了解。

将多个值传递给iphone中的Web服务

5 个答案: