XMLWeb服務及NET概述課件

WEB320:

XML,Web服務及.NET概述

日程：什么是.NET?Internet歷程和現在的問題為什么用XML和WebServices？

SOAP,WSDL

等基于XML的標準微軟的開發(fā)WebServices工具微軟現有產品和服務向.NET模式發(fā)展應用.NET測試版并行開發(fā)的客戶情況心得共享Microsoft.NET三層含義：預見Vision:網站間及企業(yè)內部將大量使用WebService工具:

微軟正在開發(fā)最好的工具：VisualStudio.NET產品:

微軟現有產品和服務向.NET模式發(fā)展,

直接支持XMLandwebservice.3rdGenerationInternet

DistributedComputingFutureInternet=大計算機伙伴網站，供應鏈，被合并的企業(yè)，不同系統間用WebService連接XML,SOAP,WSDL,WebServiceWebServiceRichPCClientsandDevicesRich

Servers為什么用XML?HTML的缺點:摻雜一起，難以修改，更新不同顯示設備需要分別編程程序員和美工設計員協作難度大網站之間難于共享資源，降低成本XML將數據和表現方式分開,解決了以上問題業(yè)界已經認同的標準在XML基礎上發(fā)展了SOAP,WSDL及UDDI等協議什么是WebService?為其它應用程序提供數據或服務的“類庫”使用HTTP，XML，SOAP等標準協議集COM組件開發(fā)和Web所長于一體是Microsoft.NETvision

的核心TraditionalNetworkingApproaches

傳統網絡方式Winsock,RPC,DCOMWinsock復雜，需編大量程序.RPCandDCOM依賴操作系統不易穿越防火墻和代理服務器WebService方式共享代碼SharedCode自帶網絡功能NetworkSupportbuiltin真正跨平臺的標準Trulycross-platform不需要發(fā)布和安裝組件DoesnotrequireinstallationofanapplicationspecificDLLorCOMcomponentEasytousefromyourownapplicationsTemperatureServicerunningonApacheSOAPStockQuoteServicerunningonTheMindElectric’sGLUENewsServicerunningonSQLDataSystems’,Inc.SOAPServerIISusingASPandSOAPToolkitv2FavoritesServicerunningonMicrosoftSOAPToolkitv2WSDLWebServiceStandardsWSDLHTTPSOAP(XML)TCP/SSLUDDIDISCOClientWebService什么是SOAP?SimpleObjectAccessProtocol(SOAP)XMLbasedmessageformatAmongotherthings,SOAPcanrepresentremoteprocedurecallsandresponses

實現遠程調用ProvidesaflexiblewaytoexpressapplicationdefineddatatypesSOAPOverHTTP能通行防火墻

Canworkthroughexistingproxiesandfirewalls利用HTTPauthentication

認證支持SecureSocketLayer(SSL)ASOAPResponse<SOAP-ENV:Envelopexmlns:SOAP-ENV=“”><SOAP-ENV:Header><CustomHeaderTID=“011F28”/></SOAP-ENV:Header><SOAP-ENV:Body><m:GetBattingAverageResponsexmlns:m=“”><m:BattingAverage>311</m:BattingAverage></m:GetBattingAverageResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>什么是WSDL?WebServicesDescriptionLanguage(WSDL)用于定義Webinterface接口的協議基于XMLCandefineaschemaforanyinterface

(notjustSOAP)定義節(jié)點endpoints

其它標準UDDI–UniversalDescriptionDiscoveryIntegrationXMLextensionsXMLSignatureSyntaxXMLEncryptionDirectInternetMessageEncapsulation(DIME)ProtocolsbuiltonSOAPXMLforAnalysis(DataAccess)Others多系統兼容性真正的跨平臺技術Useofstandardsallowsforcross-platformsupport—whetheryoudemanditnoworwantplatformflexibilityforthefutureUsingstandardprotocolsmeansweworkonyourexistingHTTPinfrastructureWebService應用分類FreeInternet

免費服務政府公共信息，產品目錄LicensedInternet

收費服務股票實時報價，BusinesstoBusiness訂單，庫存，服務請求的跟蹤Intranet

跨平臺，集成網站內容WebService帶來機會和挑戰(zhàn)顧問服務，系統集成主機托管服務：對大型服務商有利網站廣告交換業(yè)務開發(fā)周期，運行速度，還有錢嗎？CommerceServer2000最好的B2C網店軟件包產品目錄管理,訂單管理分析模塊（用戶/產品/流量/市場活動有效性）UserProfile個性化促銷郵件協同BiztalkServer完成供應商集成產品目錄，訂單，用戶服務，遠程購物車Biztalk:傳統應用擴展到Web服務方式文件映像/轉換器mapperBusinessProcessIntegrationYourBusinessSupplierC

CommerceServerWindows2000Windows2000BizTalkServerInventory

Order

fulfillment

CustomersHRSystemBankSupplierB

Federated

Passport

SupplierA

IdentityFoundation

Service:Passport

.NETFramework&VS.NET

EarlyAdoptionSuccessesToday……AndMoretoCome我們發(fā)現…Developerenthusiasmfor.NETVerypositiveresponseforthedevelopmenttoolsWebservices–soeasyFairlyeasyskillsupgradetoVB.NETVeryeasyforJavadeveloperstoswitchtoC#ScandinavianAirlines

現有VB6,COM+applicationWantedtoextendittomobiledevicesChose.NETplatformbecause:Lowdevelopment,maintenancecostEasytoadministrateovertimeInitiallyplannedjusttodorebookingExtendedittoaddXMLWebServiceGetFlightStatusRegisteredinUDDIDeviceCapabilitiesTakeadvantageofthefeaturesetSeatassignment,gateinfoVoicerecognitiononPocketPCContinentalAirlines

現有COM+,VB6platformExtendtosupport:FlightStatusWeatheratdestinationairportsMileageProgram(OnePass)KeyfactorsCost,TimetomarketBusinessReasonMaintainleadershiproleBestcustomersareveryITsavvyHav