在一次項目開發過程中，用到IOS調用WebService接口，所以抽個空把這方面的內容給大家整理出來，分享給大家。
方法一：使用WSDL2ObjC工具，將接口轉成OC類。
1.在瀏覽器中輸入webService接口地址（Safari不可用，我用的是Firefox），如：http://xxx.xxx.asmx, 地址后面添加上.wsdl成http://xxx.xxx.asmx.wsdl打開。
2.將頁面另存為wsdl文件，保存的時候后綴加上.wsdl，保存成如xxxxService.asmx.xml.wsdl。
3.使用WSDL2ObjC工具將wsdl文件轉成OC類。
4.將生成的OC類的全部文件導入到項目中。然后就可以調用了?，F在沒有寫Demo，我就貼一部分調用代碼，以后有機會傳個Demo上來。
- (NSString *)skHkshListOfpagenow2:(NSInteger)aPagenow pagesize:(NSInteger)aPagesize { MURPXzshServiceSoapBinding *binding = [[MURPXzshServiceSoapBinding alloc]initWithAddress:[NSString stringWithFormat:@"%@%@", self.jjjj, XZSH_SERVICE]];//接口地址 binding.logXMLInOut = YES;//可以直接copy MURPXzshService_HkshList *parm = [[MURPXzshService_HkshList alloc] init];//接口中方法初始化 parm.xxxx = [umcid stringValue];//接口中方法傳參數 parm.pagenow = [NSNumber numberWithInteger:aPagenow];//接口中方法傳參數 parm.pagesize = [NSNumber numberWithInteger:aPagesize];//接口中方法傳參數 MURPXzshServiceSoapBindingResponse *resp = [binding HkshListUsingParameters:parm];//調用方法 //下面是返回值 for (id mine in resp.bodyParts) { if ([mine isKindOfClass:[MURPXzshService_HkshListResponse class]]) { NSString *resultStr = [mine HkshListResult]; return resultStr; } } return nil;}注意：上面我的webService名字是MURPXzshService，Soap是MURPXzshServiceSoapBinding，調用的方法是HkshList。
方法二：直接通過網絡請求調用，解析XML的方法。
不說了，先上代碼：
- (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; //假如在這開始請求 NSString *webServiceBodyStr = [NSString stringWithFormat: @"<Jsjy_yjy xmlns=/"http://murpcn.com/murpwebservice//">" "<xxx>34192</xxx>" "<pagenow>1</pagenow>" "<pagesize>20</pagesize>" "</Jsjy_yjy>"];//這里是參數 NSString *webServiceStr = [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" "%@/n" "</soap:Body>/n" "</soap:Envelope>", webServiceBodyStr];//webService頭 NSString *SOAPActionStr = [NSString stringWithFormat:@"http://xxx.com/murpwebservice/%@", @"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) { NSLog(@"8888哈哈哈笑"); }else { NSLog(@"5555你給我哭"); }} //接收到數據的代理- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { NSString *str = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; NSLog(@"%@", str);//得到想要的XML字符串然后解析 //系統自帶的 NSXMLParser *par = [[NSXMLParser alloc] initWithData:[str dataUsingEncoding:NSUTF8StringEncoding]]; [par setDelegate:self];//設置NSXMLParser對象的解析方法代理 [par parse];//調用代理解析NSXMLParser對象，看解析是否成功}//解析XML#pragma mark xmlparser//step 1 :準備解析- (void)parserDidStartDocument:(NSXMLParser *)parser{ }//step 2：準備解析節點- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict{ NSLog(@"%@", NSStringFromSelector(_cmd) );}//step 3:獲取首尾節點間內容- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{ NSLog(@"%@", string);} //step 4 ：解析完當前節點- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName{ NSLog(@"%@",NSStringFromSelector(_cmd) );} //step 5；解析結束- (void)parserDidEndDocument:(NSXMLParser *)parser{ }//獲取cdata塊數據- (void)parser:(NSXMLParser *)parser foundCDATA:(NSData *)CDATABlock{ }以上內容就是用IOS調用WebService（SOAP接口）的方式，希望對大家有所啟迪。
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