关于iphone：将参数传递给Web服务工作代码

passing parameter to the web service working code

我再次尝试使用SOAP方法，但这次我下载了Charles并观察了我从代码中创建的请求。chales显示"分析数据失败(org.xml.sax.saxparser异常：prolog中不允许有内容)"

这是我的代码：

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NSString *soapMsg = [[NSString alloc] initWithFormat:@"
"
"
"
""
"
"
"%@
"
"%@
"
"%@
"
"%@
"
"
"
"
"
"
",str1,str2,str3,str4];
NSLog(soapMsg);

NSURL *url = [NSURL URLWithString:@"http://192.168.0.218:84/WebServiceCustomerByAmit/Service.asmx?op=InsertCustomerInformation"];
NSLog(@"url. . . .%@", url);
NSMutableURLRequest *req = [NSMutableURLRequest requestWithURL:url];
NSLog(@"req....%@", req);
NSString *msgLength = [NSString stringWithFormat:@"%d", [soapMsg length]];

NSLog(@"msgLength. . .%@", msgLength);
[req addValue: @"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
[req addValue: @"http://tempuri.org/InsertCustomerInformation" forHTTPHeaderField:@"SOAPAction"];
[req addValue: msgLength forHTTPHeaderField:@"Content-Length"];
[req setHTTPMethod:@"POST"];
[req setHTTPBody: [soapMsg dataUsingEncoding:NSUTF8StringEncoding]];
NSLog(@"req....%@", req);
NSError *error;
NSURLResponse *response;
//NSData *urlData=[NSURLConnection sendSynchronousRequest:req returningResponse:&response error:&error];

NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:req delegate:self];

if( theConnection )
{
//webData = [[NSMutableData data] retain];
NSLog(@"theConnection is OK");
}
else
{
NSLog(@"theConnection is NULL");
}

if(!response){
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Connection Error" message:@"Failed to Connect to the Internet" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
[alert release];
}

else{
UIAlertView *alert1 = [[UIAlertView alloc] initWithTitle:@"Connection Successful" message:@"Connected to the Internet" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert1 show];
[alert1 release];

}
}

救命！！提前谢谢！！