利用BIRT API生成报表例子1
http://www.birthome.com/read.php?tid-2762.html
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Java代码 package cn.net.fone.webbirt; import java.io.IOException; import java.io.PrintWriter; import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.HashMap; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletContext; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.eclipse.birt.report.engine.api.EngineConstants; import org.eclipse.birt.report.engine.api.HTMLRenderOption; import org.eclipse.birt.report.engine.api.IReportRunnable; import org.eclipse.birt.report.engine.api.IRunAndRenderTask; import org.eclipse.birt.report.engine.api.IReportEngine; import org.eclipse.birt.report.model.api.CellHandle; import org.eclipse.birt.report.model.api.DataItemHandle; import org.eclipse.birt.report.model.api.ElementFactory; import org.eclipse.birt.report.model.api.LabelHandle; import org.eclipse.birt.report.model.api.OdaDataSetHandle; import org.eclipse.birt.report.model.api.OdaDataSourceHandle; import org.eclipse.birt.report.model.api.PropertyHandle; import org.eclipse.birt.report.model.api.ReportDesignHandle; import org.eclipse.birt.report.model.api.RowHandle; import org.eclipse.birt.report.model.api.StructureFactory; import org.eclipse.birt.report.model.api.TableHandle; import org.eclipse.birt.report.model.api.activity.SemanticException; import org.eclipse.birt.report.model.api.elements.structures.ComputedColumn; import org.eclipse.birt.report.model.api.olap.CubeHandle; import org.eclipse.birt.report.model.api.olap.DimensionHandle; import org.eclipse.birt.report.engine.api.HTMLServerImageHandler; public class DesignReportServlet extends HttpServlet{ /** * */ private static final long serialVersionUID = 1L; /** * Constructor of the object. */ private IReportEngine birtReportEngine = null; protected static Logger logger = Logger.getLogger( "org.eclipse.birt" ); public DesignReportServlet() { super(); } /** * Destruction of the servlet. */ public void destroy() { super.destroy(); BirtEngine.destroyBirtEngine(); } /** * The doGet method of the servlet. select t.count_date,t.cha_user_name,t.type_name,t.city_name from t_yx_pv_count t where t.count_date=to_date('2012-06-26','yyyy-MM-dd'); * */ public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { //get report name and launch the engine resp.setContentType("text/html"); //resp.setContentType( "application/pdf" ); //resp.setHeader ("Content-Disposition","inline; filename=test.pdf"); //String reportName = req.getParameter("__report"); String[] cols = (String[])req.getParameterMap().get("dyna1"); ServletContext sc = req.getSession().getServletContext(); this.birtReportEngine = BirtEngine.getBirtEngine(sc); IReportRunnable design; try { //Open report design design = birtReportEngine.openReportDesign(sc.getRealPath("/Reports")+"/"+"designReport.rpttemplate"); ReportDesignHandle report = (ReportDesignHandle) design.getDesignHandle( ); buildReport( cols, report ); //create task to run and render report IRunAndRenderTask task = birtReportEngine.createRunAndRenderTask( design ); // HashMap paramMap1 = new HashMap(); // DateFormat dFormat=new SimpleDateFormat("yyyy-MM-dd"); // Long RP_st = dFormat.parse("2012-06-24").getTime(); // Long RP_et = dFormat.parse("2012-06-25").getTime(); // paramMap1.put("RP_st",new java.sql.Date(RP_st)); // paramMap1.put("RP_et",new java.sql.Date(RP_et)); // paramMap1.put("cid","402880c73726bdb9013759864237000b"); // paramMap1.put("tid", 0); // paramMap1.put("cityids",""); //task.setAppContext( paramMap1 ); //set output options HTMLRenderOption options = new HTMLRenderOption(); options.setImageHandler( new HTMLServerImageHandler() ); options.setImageDirectory( sc.getRealPath("/images")); options.setBaseImageURL( req.getContextPath() + "/images" ); options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_HTML); //options.setOutputFormat(HTMLRenderOption.OUTPUT_FORMAT_PDF); options.setOutputStream(resp.getOutputStream()); task.setRenderOption(options); //run report task.run(); task.close(); }catch (Exception e){ e.printStackTrace(); throw new ServletException( e ); } } public void buildReport(String[] cols, ReportDesignHandle designHandle){ try{ ElementFactory designFactory = designHandle.getElementFactory( ); buildDataSource(designFactory, designHandle); //ArrayList cols = new ArrayList(); //cols.add("OFFICECODE"); //cols.add("CITY"); //cols.add("COUNTRY"); buildDataSet(cols, "FROM T_YX_PV_COUNT", designFactory, designHandle); TableHandle table = designFactory.newTableItem( "table", cols.length ); table.setWidth( "100%" ); table.setDataSet( designHandle.findDataSet( "ds" ) ); CubeHandle cubeHandle=designFactory.newOdaCube("cube"); DimensionHandle dimensionHandle = cubeHandle.getDimension("dddd"); //cubeHandle. //dimensionHandle. PropertyHandle computedSet = table.getColumnBindings( ); ComputedColumn cs1 = null; for( int i=0; i < cols.length; i++){ cs1 = StructureFactory.createComputedColumn(); cs1.setName((String)cols); cs1.setExpression("dataSetRow[\"" + (String)cols + "\"]"); computedSet.addItem(cs1); } // table header RowHandle tableheader = (RowHandle) table.getHeader( ).get( 0 ); for( int i=0; i < cols.length; i++){ LabelHandle label1 = designFactory.newLabel( (String)cols ); label1.setText((String)cols); CellHandle cell = (CellHandle) tableheader.getCells( ).get( i ); cell.getContent( ).add( label1 ); } // table detail RowHandle tabledetail = (RowHandle) table.getDetail( ).get( 0 ); for( int i=0; i < cols.length; i++){ CellHandle cell = (CellHandle) tabledetail.getCells( ).get( i ); DataItemHandle data = designFactory.newDataItem( "data_"+(String)cols ); data.setResultSetColumn( (String)cols); cell.getContent( ).add( data ); } designHandle.getBody( ).add( table ); }catch(Exception e){ e.printStackTrace(); } } void buildDataSource( ElementFactory designFactory, ReportDesignHandle designHandle ) throws SemanticException { OdaDataSourceHandle dsHandle = designFactory.newOdaDataSource( "Data Source", "org.eclipse.birt.report.data.oda.jdbc" ); dsHandle.setProperty( "odaDriverClass","oracle.jdbc.driver.OracleDriver" ); dsHandle.setProperty( "odaURL", "" ); dsHandle.setProperty( "odaUser", "" ); dsHandle.setProperty( "odaPassword", "" ); designHandle.getDataSources( ).add( dsHandle ); } /* * select t.count_date,t.cha_user_name,t.type_name,t.city_name from t_yx_pv_count t where t.count_date=to_date('2012-06-26','yyyy-MM-dd'); * */ void buildDataSet(String[] cols, String fromClause, ElementFactory designFactory, ReportDesignHandle designHandle ) throws SemanticException { OdaDataSetHandle dsHandle = designFactory.newOdaDataSet( "ds", "org.eclipse.birt.report.data.oda.jdbc.JdbcSelectDataSet" ); dsHandle.setDataSource( "Data Source" ); String qry = "select "; for( int i=0; i < cols.length; i++){ qry += " " + cols; if( i != (cols.length -1) ){ qry += ","; } } qry += " " + fromClause + " where COUNT_DATE=to_date('2012-06-26','yyyy-MM-dd')"; dsHandle.setQueryText( qry ); designHandle.getDataSets( ).add( dsHandle ); } /** * The doPost method of the servlet. * */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html"); PrintWriter out = response.getWriter(); out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"); out.println("<HTML>"); out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>"); out.println(" <BODY>"); out.println(" Post Not Supported"); out.println(" </BODY>"); out.println("</HTML>"); out.flush(); out.close(); } /** * Initialization of the servlet. * * @throws ServletException if an error occure */ public void init() throws ServletException { BirtEngine.initBirtConfig(); } } |
