第三十六篇、webService

在很多的情况下，我们会常常遇到webservive写的接口，往往这种情况下，我们就需要拼接一段报文去与服务器对接

首先要明白webService的工作原理,,,(http://www.cnblogs.com/Jessy/p/3528341.html)

//假如在这开始请求
  NSString *webServiceBodyStr = [NSString stringWithFormat:
                  @"<Jsjy_yjy xmlns="http://xxxxx.com/webservice/">"
                  "<name>wanger</name>"
                  "<pagenow>1</pagenow>"
                  "<pagesize>20</pagesize>"
                  "</Jsjy_yjy>"];//这里是参数
  NSString *webServiceStr = [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>
"
                "%@
"
                "</soap:Body>
"
                "</soap:Envelope>",
                webServiceBodyStr];//webService头
     
  NSString *SOAPActionStr = [NSString stringWithFormat:@"http://xxx.com/webservice/%@", @"Jsjy_yjy"];//SOAPAction
     
  NSURL *url = [NSURL URLWithString:@"http://xxxx/key/MurpjsjyService.asmx"];
  NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
  NSString *msgLength = [NSString stringWithFormat:@"%ld", webServiceStr.length];
  [theRequest addValue:@"text/xml; charset=utf-8" forHTTPHeaderField:@"Content-type"];
  [theRequest addValue:SOAPActionStr forHTTPHeaderField:@"SOAPAction"];
  [theRequest addValue:msgLength forHTTPHeaderField:@"Content-Length"];
  [theRequest setHTTPMethod:@"POST"];
  [theRequest setHTTPBody:[webServiceStr dataUsingEncoding:NSUTF8StringEncoding]];
  NSURLConnection *theConn = [[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
  if (theConn) {
       
 
  }else {
 
  }