iosiphone開發(fā)入門教程源碼和10云端應(yīng)用

主要知識GETXMLJSONPOSTGET請?<?xmlversion="1.0"<product<?xmlversion="1.0"<product 點(diǎn)擊按-(IBAction)onClickButton:(id)sender//NSString*str=[[NSStringalloc] o.NSString*strURL=[NSString",NSURL*url=[NSURLNSURLRequest*request=[[NSURLRequestalloc]initWithURL:url];NSURLConnection*connection=[[NSURLConnectionalloc][connectionrelease];[requestrelease];[activityIndicatorstartAnimating];}解定義NSURLConnection的委托?NSURLRequest*request=[[NSURLRequestalloc]initWithURL:url];?NSURLConnection*connection=[[NSURLConnectionalloc] ?委托（delegate）是一種 NSURLConnection回調(diào)方?-(void)connection:(NSURLConnection*)connectiondidReceiveData:(NSData*)data?-(void)connection:(NSURLConnection*)connectiondidFailWithError:(NSError*)error?-(void)(NSURLConnection*)加載數(shù)據(jù)成功，在connection:didReceiveData方法之接收數(shù)據(jù)處//upateData=[[NSDataalloc]NSStringEncodingenc=NSString*gbkNSString=[[NSStringalloc]initWithData:dataencoding://如果是非UTF－8NSXMLParser會報錯xmlString=[[NSStringalloc] cingOccurrencesOfString:@"<?xmlversion=\"1.0\"encoding=\"gbk\"?>"withString:@"<?xmlversion=\"1.0\"encoding=\"utf-8\"?>"]];[gbkNSStringrelease];}解 XML解?關(guān) NSURLConnection在眾多的回調(diào)方法。解析XMLconnectionDidFinishLoading:方法開始解析XML文件也是要通過XML?NSXMLParser，是 解析XMLSDK工具類。 解析開始處[activityIndicator//開始解析NSXMLParser*ipParser=[[NSXMLParseralloc][ipParserparse];[ipParserrelease];}NSXMLParser回調(diào)方?- :(NSXMLParser?-(void)parser:(NSXMLParser*)parserparseErrorOccurred:(NSError*)parseError?(void)parser:(NSXMLParser*)parserdidStar (NSString*)elementNamenamespaceURI:(NSString*)namespaceURIqualifiedName:(NSString*)qualifiedNameattributes:(NSDictionary*)attributeDict?遇到一個開 NSXMLParser回調(diào)方?-(void)parser:(NSXMLParser*)parserfoundCharacters:(NSString*)string?-(void)parser:(NSXMLParser*)parserdidEndElement:(NSString*)elementNamenamespaceURI:(NSString*)namespaceURIqualifiedName:(NSString*)qName?遇到結(jié) ?- :(NSXMLParser文檔開始的回調(diào)方這個方法在解析過程中只調(diào)運(yùn)一次，一般在這個--:(NSXMLParser*)parser infoinfo=[[NSMutableDictionaryinitWithCapacity:}}文檔出錯回調(diào)方--(void)parser:(NSXMLParser*)parserparseErrorOccurred:(NSError*)parseError{UIAlertView*errorAlert=[[UIAlertViewinitWithTitle:[parseErrormessage:[parseError[errorAlertshow];[errorAlertrelease];}遇到開 回調(diào)方?參數(shù)elementName是 是屬性列表，namespaceURI是命名空間，如果-(void)parser:(NSXMLParser*)parser qualifiedName:(NSString*)qualifiedNameattributes:(NSDictionary*)attributeDict{NSLog(@"value:%@\n",elementName);currentTagName=elementName;}遇到字符串回調(diào)方-(void)parser:(NSXMLParser*)parserfoundCharacters:(NSString*)stringNSLog(@"value:%@\n",string=[stringstringByRe if([currentTagNameisEqualToString:@"ip"]){[infosetValue:stringforKey:}}elseif([currentTagNameisEqualToString:@"location"]){if(![stringisEqualToString:@""]){[infosetValue:stringforKey:}}}遇到結(jié) 回調(diào)方--(void)parser:(NSXMLParser*)parserdidEndElement:(NSString*)elementNamenamespaceURI:(NSString*)namespaceURIqualifiedName:(NSString*)qName{}-:(NSXMLParser*)parserNSMutableString*outstring-:(NSXMLParser*)parserNSMutableString*outstring=[[NSMutableStringalloc]initWithCapacity:for(idkeyininfo)}updateView.text=[outstring[xmlString}JSON解JSON解???{s e=eytf??s??sn.e??ersrel;e=JSON解析?ek?e實現(xiàn)回調(diào)方?-(void)connection:(NSURLConnection*)connectiondidReceiveData:(NSData*)data?-(void)connectionDidFinishLoading:(NSURLConnection*)connection?-(void)connection:(NSURLConnection*)connectiondidFailWithError:(NSError*)error--(void)connection:(NSURLConnection*)connectiondidReceiveData:(NSData*)data{outString=[[NSStringalloc]initWithData:dataencoding:NSUTF8StringEncoding];NSLog(@"%@",}?outString的JSONValue消息獲得NSMutableDictionary，JSONapi中提供了NSString的分類（Ca -(void)connectionDidFinishLoading:(NSURLConnection*)connection{[activityIndicatorViewstopAnimating];NSMutableDictionary*jsonoObj=[outStringNSLog(@"%@",NSMutableDictionary*jsonoSubObj=[jsonoObjNSString*text=[[NSStringalloc]textView.text=text;[textrelease];[outString}文檔出錯回調(diào)方--(void)parser:(NSXMLParser*)parserparseErrorOccurred:(NSError*)parseError{UIAlertView*errorAlert=[[UIAlertViewinitWithTitle:[parseErrormessage:[parseError[errorAlertshow];[errorAlertrelease];}點(diǎn)擊按-{NSString*strurl= lat=43&lng=-NSURL*url=[NSURLNSURLRequest*request=[[NSURLRequestalloc]initWithURL:url];NSURLConnection*connection=[[NSURLConnectionalloc]initWithRequest:requestdelegate:self];[connectionrelease];[request[activityIndicatorView}POST請??POST請求與GET不同，不使用的txtUserName.text,txtPwd.text];NSData*postData=[postNSURL*webServiceURL=[NSURL "];[requestif(!connection)NSLog(@"Failedtosubmit}else}}解POST參數(shù)是以一個字符串方式傳遞：?[request知道請求方法為POST方法，但是要注意POST[requestsetHTTPBody:postData];該語句是將 (void)connection:(NSURLConnection*)connectiondidReceiveData:(NSData*){resultString=[[NSStringalloc]}-(void)connectionDidFinishLoading:(NSURLConnection*)theConnectionNSStringif([resultStringisEqual:@"1"])messageNSStringallocinitWithFormat:@"%@@"}else}

messageNSStringallocinitWithFormat:@"%@@"UIAlertView*alert=[[UIAlertView:message:message[alert[alertrelease];[re