详解跨平台iPhone中调用WCF服务（soap通信）

iPhone中调用WCF服务是本文要介绍的内容，由于对移动平台充满着好奇与兴趣，最近着手了iPhone开发和学习。学习的路线是从objective-c到cococa。方法是看了两本入门的英文书，还有就是学习apple的sdk。对于产品的基本想法是服务端用.net，手机客户端用iPhone。

一些复杂的逻辑处理放到服务端实现，客户端与服务端通过XML交互，在iPhone客户端解析XML通过cocoa展示数据。由于iPhone和DoNet是两个完全不同的平台。iPhone依靠mac系统平台，donet依赖windows系统平台。这篇文章我将通过一个helloworld程序讲述一下通过WCF实现从mac系统到windows的跨平台的调用。

1、创建简单的WCF服务                                       1、创建简单的WCF服务

服务契约代码如下  

 

2、在iPhone中调用WCF

与donet调用wcf服务不同，这里使用NSURLConnection去获取WCF服务端的数据，代码如下：（单击可放大）

 

NSString *soapMessage=[NSStringstringWithFormat:

  @"\n"

 "

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

 "xmlns:SOAP-ENC="http://schemas.xmlsoap.org/envelope/ "\n"

 "SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/encoding/"\n"

 "xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">\n"

 "\n"

  ""

 "\n"

 "\n"

 ""

  ];

 

 

   NSURL *url=[NSURLURLWithString:@"http://10.5.23.117:8008/servicel.svc"];

NSMutableURLRequest*theRequest=[NSMutableURLRequestrequestWithURL:url];

NSString *msgLength=[NSStringstringWithFormat:@"%d",[soapMessage length]];

[theRequest addValue:@"text/xml;charset=utf-8"forHTTPHeaderField:@"Content-Type"];

[theRequestaddValue:@"http://tempuri.org/ISerVice1/GetData"forHTTPHeaderField:@"SOAPAction"];

[theRequest addValue:msgLengthforHTTPHeaderField:@"Content-Length"];

[theRequestsetHTTPMethod:@"POST"];

[theRequest setHTTPBody:[soapMessagedataUsingEncoding:NSUTF8StringEncoding]];

NSURLConnection*theConnection=[[NSURLConnection alloc]initWithRequest:urldelegate:self];

if (theConnection) {

webData=[[NSMutableDataalloc]retain];

}

else {

NSLog(@"the Connection isnil");

}

NSURLConnection的委托方法：

-(void)connection:(NSURLConnection *)connectiondidReceiveResponse:(NSURLResponse *)response

{

[receivedData setlength:0];

}

- (void)connection:(NSURLConnection *)connectiondidReceiveData:(NSData *)data

{

[receivedData appendData:data];

return;

}

- (void)connectionDidFinishLoading:(NSURLConnection*)connection

{

1.  NSString *theXML = [[NSString alloc]initWithBytes: [webData mutableBytes] length:[webData length]encoding:NSUTF8StringEncoding];
2.         NSLog(theXML);
3.         [theXMLrelease];
4.         
5.         //重新加載xmlParser
6.         if(xmlParser )
7.         {
8.                 [xmlParserrelease];
9.         }
10.         
11.         xmlParser= [[NSXMLParser alloc] initWithData: webData];
12.         [xmlParsersetDelegate: self];
13.         [xmlParsersetShouldResolveExternalEntities: YES];
14.         [xmlParserparse];
15.         
16.         [connectionrelease];
17.         //[webDatarelease];