下例是一个 JSP 页面,它演示了如何为报表设置数据库登录信息。设置了登录信息后,即会显示报表。
注意: 对于与本教程示例一起使用的任何报表,您必须配置了适当的 JDBC 数据源,以便应用程序服务器能访问它。本例中使用的报表未随附于教程中。
<%@ page import="com.crystaldecisions.report.web.viewer.*" %>
<%@ page import="com.crystaldecisions.sdk.occa.report.data.*" %>
<%@ page import="com.crystaldecisions.reports.reportengineinterface.JPEReportSourceFactory" %>
<%@ page import="com.crystaldecisions.sdk.occa.report.reportsource.IReportSourceFactory2" %>
Object reportSource = session.getAttribute("reportSource");
String report = "/reports/sample.rpt";
IReportSourceFactory2 rptSrcFactory = new JPEReportSourceFactory();
reportSource = rptSrcFactory.createReportSource(report, request.getLocale());
session.setAttribute("reportSource", reportSource);
ConnectionInfos connInfos = new ConnectionInfos();
IConnectionInfo connInfo1 = new ConnectionInfo();
connInfo1.setUserName("guest");
connInfo1.setPassword("password");
CrystalReportViewer viewer = new CrystalReportViewer();
viewer.setReportSource(reportSource);
viewer.setEnableLogonPrompt(false);
viewer.setDatabaseLogonInfos(connInfos);
if (session.getAttribute("refreshed") == null)
session.setAttribute("refreshed", "true");
viewer.processHttpRequest(request, response, getServletConfig().getServletContext(), null);
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