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ID:37905868
大小:116.50 KB
页数:7页
时间:2019-06-02
《Web Service概念和术语》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、WebService概念和术语一.WebService基本的概念XML(eXtensibleMarkupLanguage)XMLisusedtoorganizedocumentsandbusinessdata.XMLfilescanbestoredortransmittedbetweentwoapplicationsonanetwork.Basically,theyarejustplaintextdocumentsthatcontainspecialtagsthatlabeldifferentpartsofadocumentorfieldso
2、fdata.XML是一种由规范定义的元语言。XML标记语言定义了一套用来组织和描述文本的标记(tag)。标记通常成对出现,其中一个标记是开始标记,另一个标记是结束标记。位于这两个标记之间的所有内容均成为元素。SOAP(SimpleObjectAccessProtocol)SOAPdefinesastandardpackagingformatfortransmittingXMLdatabetweenapplicationsonanetwork.ASOAPmessageisjustanXMLdocument.SOAPisspeciallydesi
3、gned,however,tocontainandtransmitotherXMLdocumentsaswellasinformationrelatedtorouting,processing,security,transactions,andotherqualitiesofservice.SOAP消息是一种XML文档,它有其自己的XML模式、命名空间和处理规则。目前的版本是SOAP1.2。WSDL(WebServicesDescriptionLanguage)WSDLisastandardfordescribingthestructureo
4、ftheXMLdataexchangedbetweentwosystemsusingSOAP.WSDL是一个用于精确描述Web服务的文档格式,它用来指定客户与具体的Web服务通信时必须使用的确切的消息格式、Internet协议以及地址。目前的版本是WSDL2.0UDDI(UniversalDescription,Discovery,andIntegration)UDDIdefinesastandardsetofWebserviceoperations(methods)thatareusedtostoreandlookupinformation
5、aboutotherWebserviceapplications.Inotherwords,UDDIdefinesastandardSOAP-basedinterfaceforaWebservicesregistry.YoucanuseaUDDIregistrytofindaparticulartypeofWebservice,ortofindoutabouttheWebserviceshostedbyaspecificorganization.AUDDIregistryisoftenreferredtoasa"YellowPages"for
6、Webservices.TheUDDIspecificationisnowmaintainedbytheOrganizationfortheAdvancementofStructuredInformationStandards(OASIS)UDDI定义了一套标准的Web服务操作方法,用于存储、查找有关其他Web服务应用程序方面的信息。WS-IBP(WebServicesInteroperabilityBasicProfile)WebServicesInteroperabilityOrganizationisanorganizationofWe
7、bservicesvendorsthatarecommittedtodefiningastandardforWebservicesinteroperability.ThefirstdeliverableoftheWS-IwastheBasicProfile1.0,第二个是WS-IBasicProfile2.0二.WebServiceAdvanced概念WS-AddressingWS-AddressingspecificationistoprovidethemeanstoidentifyaWebserviceendpointandawaytou
8、sesuchidentifiersinSOAPmessagesforthedeliveryandexchangeofmessagesbetweenWebservic
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