如何使用来自iPhone应用程序的SOAP请求将图像+ xml上传到Web服务器

Question

我正在实现iPad应用程序。在我的应用程序中，我需要从用户那里获取一些信息和个人资料图片，并需要使用SOAP请求将该信息上传到Web服务器。我已经完成了文字输入上传。但是当涉及到图像时，我并不知道。我知道，要上传图像，我们需要将其转换为我完成的NSData，但是如何将其添加到我的帖子字符串中？

我的代码如下：

NSData* imageData = UIImagePNGRepresentation(myPic);
NSString* uploadValues=@"";
uploadValues = [uploadValues stringByAppendingString:[NSString stringWithFormat:@"<UserInformation><UserInfo action="INSERT"><Userid>123</Userid><FirstName>abc</FirstName><LastName>xyz</LastName><Contact>00000000</Contact><Email>abc@googole.com</Email><Address>USA</Address><Image>How can I put image data here? is that work if I put data here?</Image></UserInfo></UserInformation>"];
        uploadValues = [uploadValues stringByReplacingOccurrencesOfString:@"(null)" withString:@" "];
        serverConnections=[ServerConnections sharedConnections];
        serverConnections.delegate=self;

        NSString* soapString = [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>
"
                                "<SetUserInfo xmlns="http://example.com/">
"
                                "<Data><![CDATA[ %s ]]></Data> 
"
                                "</SetUserInfo> 
"
                                "</soap:Body>
"
                                "</soap:Envelope>
",[uploadValues UTF8String]];

        printf("
 Input string:%s",[soapString UTF8String]);


        NSURL *url = [NSURL URLWithString:@"http://example.com/xyz.asmx"];
        NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
        NSString *msgLength = [NSString stringWithFormat:@"%d", [soapString length]];

        [theRequest addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
        [theRequest addValue: @"http:/example.com/SetUserInfo" forHTTPHeaderField:@"SOAPAction"];
        [theRequest addValue: msgLength forHTTPHeaderField:@"Content-Length"];
        [theRequest setHTTPMethod:@"POST"];
        [theRequest setHTTPBody: [soapString dataUsingEncoding:NSUTF8StringEncoding]];
        [serverConnections startEstablishingConnectionwithServer:theRequest];