Java操作水晶报表DAO类：

public static ResultSet getResultSet(final int scrollType) {

ResultSet resultSet = null;

String query = "";

try {

Connection conn = DBConnection.getConnection();

String sql = "select * from table1";

resultSet = conn.createStatement().executeQuery(sql);

} catch (Exception e) {

System.out.println(e.getMessage());

}

return resultSet;

}

Action类如下：

public ActionForward execute(ActionMapping mapping, ActionForm form,

HttpServletRequest request, HttpServletResponse response) {

operatorName = request.getParameter("operatorName");

httpSession = request.getSession();

boolean flag = this.ReportSourceInSession("reportSource", httpSession);

if (true) {

request.setAttribute("field", this.setOperator("operator", operatorName, ""));

return mapping.findForward("success");

} else

return mapping.findForward("error");

}

public boolean ReportSourceInSession(String session_name,

HttpSession session) {

boolean flag = false;

try {

ReportClientDocument reportClientDoc = new ReportClientDocument();

reportClientDoc.open("result.rpt", 0);

ResultSet resultSet = CrytalReport

.getResultSet(ResultSet.TYPE_SCROLL_INSENSITIVE);

String tableAlias = reportClientDoc.getDatabaseController()

.getDatabase().getTables().getTable(0).getAlias();

reportClientDoc.getDatabaseController().setDataSource(resultSet,

tableAlias, "reportSource");

session.setAttribute(session_name, reportClientDoc

.getReportSource());

flag = true;

return flag;

} catch (Exception e) {

System.out.println(e.getMessage());

return flag;

}

}

JSP页面内容如下：

Result

Object reportSource = session.getAttribute("reportSource");

CrystalReportViewer crViewer = new CrystalReportViewer();

crViewer.setOwnPage(true);

crViewer.setOwnForm(true);

crViewer.setReportSource(reportSource);

crViewer.setPrintMode(CrPrintMode.ACTIVEX);

crViewer.setParameterFields((Fields)request.getAttribute("field"));

crViewer.setEnableParameterPrompt(false);

crViewer.processHttpRequest(request, response, this

.getServletConfig().getServletContext(), null);

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