摘自www.eclipse.orgUsingtheBIRTReportViewerHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"overview"OverviewHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"operations"ViewerOperationsHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"run"RunaReportHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"frameset"ViewerFramesetHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"command_options"ViewerCommandOptionsHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"parameters"ReportParametersHYPERLINK"http://www.eclipse.org/birt/phoenix/deploy/viewerUsage.php"\l"error"ErrorReportingOverviewThesampleBIRTviewerisoptimizedforusewithinEclipseforthepreviewoperation.WhenusedoutsideEclipse,itsimplyactsasanexampleoftheapplicationyoumightbuildtorunandviewreports.YourreportviewerapplicationmustbeinJavasothatithasaccesstotheBIRTengine.TheViewerperformsthreedistinctoperations,ofwhichoneisinternalandnotvisibletoyourapplication:Createaparameterentryformbasedontheparameterdefinitionswithinthereportdesignfile.Givenasetofreportparametervalues,runareportandreturntheoutputaseitherHTMLorPDF.Retrieveanembeddedimage,oranimageofachartwithinthereport.(Internaloperation.)Youcanuseafull-featureViewerframesetthatdisplaysaparameterformandrunsthereport.Or,youcansupplytheparametervaluesandsimplyrunthereporttoproduceasimpleHTMLorPDFoutputpage.ViewerOperationsTheBIRTviewerprovidesanumberofURLsthatcontrolitsbehavior.TheViewerprovidestwomodesofoperationasgivenbytwoservletmappings.OperationDescriptionframesetDisplayaframesetthathasoneframethatpromptstheuserforparameters,thendisplaystheresultingreportinanotherframe.runRunsthereportanddisplaystheoutputasastand-aloneHTMLpage,orasaPDFdocument.Theservletmappingnamesarecasesensitive.RunaReportTherunservletmappingrunsareportgivenasetofreportparameters,andreturnsthereportasanHTMLpageorPDFdocument.Thi