以下はjspでの私のコードです。アプリケーションを実行してレポートを表示しようとすると、Crystal Report Viewer がデータベース ログオン ウィンドウをポップアップ表示します。ユーザー名とパスワードを入力すると、null ポインター例外がスローされます。何が問題なのですか？パラメーター、つまり口座番号、日付から日付までが null ではありません。
<%@page import="com.crystaldecisions.sdk.occa.report.application.ReportClientDocument"%>
<%@page import="com.crystaldecisions.sdk.occa.report.application.DatabaseController"%>
<%@page import="com.crystaldecisions.sdk.occa.report.application.DBOptions"%>
<%@page import="com.crystaldecisions.sdk.occa.report.exportoptions.ReportExportFormat"%>
<%@page import="com.crystaldecisions.sdk.occa.report.exportoptions.ExportOptions"%>
<%@page import="com.opensymphony.xwork2.ActionContext"%>
<%@page import="java.text.SimpleDateFormat"%>
<%@ page import="com.crystaldecisions.report.web.viewer.*" %>
<%@ page import="com.crystaldecisions.sdk.occa.report.data.*" %>
<%@page import="com.crystaldecisions.sdk.occa.report.reportsource.*"%>
<%@page import="com.crystaldecisions.sdk.occa.report.lib.*" %>
<%@page import="java.io.*"%>
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%
try {
String account = ActionContext.getContext().getSession().get("account").toString();
String frm_date = ActionContext.getContext().getSession().get("frm_date").toString();
String to_date = ActionContext.getContext().getSession().get("to_date").toString();
//System.out.println("From report Viewer "+account+" "+frm_date+" "+to_date);
String reportName = "rpt_dp_customer_estmt1.rpt";
File reportFile = new File(reportName);
System.out.println("Path: " + reportFile.getAbsolutePath());
//check to see if the report source already exists
Object reportSource = null; //session.getAttribute("reportSource");
//if the report source has not been opened
//if (reportSource == null) {
//---------- Create a ReportClientDocument -----------
ReportClientDocument oReportClientDocument = new ReportClientDocument();
//---------- Set the path to the location of thereport soruce -------------
//Open report.
oReportClientDocument.open(reportName, 0);
//parameters
//}
Fields fields = new Fields();
ParameterField acc = new ParameterField();
Values a_vals = new Values();
ParameterFieldDiscreteValue acc_field = new ParameterFieldDiscreteValue();
acc.setName("I_ACCT_NO");
acc.setReportName("");
acc_field.setValue(account);
a_vals.add(acc_field);
acc.setCurrentValues(a_vals);
String fr_date = "07/07/2001";
SimpleDateFormat ft = new SimpleDateFormat("mm/dd/yyyy");
ParameterField f_date = new ParameterField();
Values f_date_vals = new Values();
ParameterFieldDiscreteValue f_date_field = new ParameterFieldDiscreteValue();
f_date.setName("I_START_DATE");
f_date.setReportName("");
f_date_field.setValue(ft.parse(frm_date));
f_date_vals.add(f_date_field);
f_date.setCurrentValues(f_date_vals);
String tr_date = "07/07/2012";
ParameterField t_date = new ParameterField();
Values t_date_vals = new Values();
ParameterFieldDiscreteValue t_date_field = new ParameterFieldDiscreteValue();
t_date.setName("I_END_DATE");
t_date.setReportName("");
t_date_field.setValue(ft.parse(to_date));
t_date_vals.add(t_date_field);
t_date.setCurrentValues(t_date_vals);
fields.add(acc);
fields.add(f_date);
fields.add(t_date);
//infos go here
final String DBUSERNAME = "ESTATEMENT";
final String DBPASSWORD = "estatement";
final String CONNECTION_STRING = "!oracle.jdbc.driver.OracleDriver!jdbc:oracle:thin:ESTATEMENT/estatement@192.168.100.240:1521:RUBIKON";
final String TRUSTEDCON = "false";
final String PREQESERVERNAME = "192.168.100.240";
final String SERVERTYPE = "JDBC (JNDI)";
final String DATABASE_DLL = "crdb_jdbc.dll";
final String DATABASE = "FINCALIVE";
final String DBCLASSNAME = "oracle.jdbc.driver.OracleDriver";
final String USEJDBC = "true";
final String DATABASE_NAME = "FINCALIVE";
final String SERVERNAME = "192.168.100.240:1521:RUBIKON";
final String CONNECTIONURL = "jdbc:oracle:thin:ESTATEMENT/estatement@192.168.100.240:1521";
final String SERVER = "192.168.100.240:1521:RUBIKON";
//Open report.
// Set DB Username and Password
oReportClientDocument.getDatabaseController().logon(DBUSERNAME, DBPASSWORD);
// Create the two connectioninfo objects to use
IConnectionInfo oldConnectionInfo = new ConnectionInfo();
IConnectionInfo newConnectionInfo = new ConnectionInfo();
// Assign the old Connection info to the reports current info
DatabaseController dbController = oReportClientDocument.getDatabaseController();
oldConnectionInfo = dbController.getConnectionInfos(null).getConnectionInfo(0);
// If this connection needed parameters, we would use this field.
Fields pFields = null;
// Create a new propertybag for the new location
PropertyBag boPropertyBag1 = new PropertyBag();
// Set new table logon properties
boPropertyBag1.put("URI", CONNECTION_STRING);
boPropertyBag1.put("Trusted_Connection", TRUSTEDCON);
boPropertyBag1.put("PreQEServerName", PREQESERVERNAME);
boPropertyBag1.put("Server Type", SERVERTYPE);
boPropertyBag1.put("Database DLL", DATABASE_DLL);
boPropertyBag1.put("Database", DATABASE);
boPropertyBag1.put("Database Class Name", DBCLASSNAME);
boPropertyBag1.put("Use JDBC", USEJDBC);
boPropertyBag1.put("Database Name", DATABASE_NAME);
boPropertyBag1.put("Server Name", SERVERNAME);
boPropertyBag1.put("Connection URL", CONNECTIONURL);
boPropertyBag1.put("Server", SERVER);
boPropertyBag1.put("Use JDBC", "true");
// Assign the properties to the connection info
newConnectionInfo.setAttributes(boPropertyBag1);
// Set the DB Username and Pwd
newConnectionInfo.setUserName(DBUSERNAME);
newConnectionInfo.setPassword(DBPASSWORD);
// The Kind of connectionInfos is SQL
newConnectionInfo.setKind(ConnectionInfoKind.SQL);
// set the parameters to replace.
// The 4 options are:
// _doNotVerifyDB
// _ignoreCurrentTableQualifiers
// _mapFieldByRowsetPosition
// _useDefault
int replaceParams = DBOptions._ignoreCurrentTableQualifiers + DBOptions._doNotVerifyDB;
// Now replace the connections
dbController.replaceConnection(oldConnectionInfo, newConnectionInfo, fields, replaceParams);
oReportClientDocument.getDatabaseController().replaceConnection(oldConnectionInfo, newConnectionInfo, fields, replaceParams);
System.out.println("Connection Replaced");
ReportExportControl exporter = new ReportExportControl();
// set the report source
reportSource = oReportClientDocument.getReportSource();
exporter.setReportSource(reportSource);
ExportOptions exportOptions = new ExportOptions();
exportOptions.setExportFormatType(ReportExportFormat.PDF);
exporter.setExportOptions(exportOptions);
exporter.setParameterFields(fields);
// tell the viewer to display the report
exporter.processHttpRequest(request,
response,
getServletConfig().getServletContext(),
null);
//create the CrystalReportViewer object
/*CrystalReportViewer oCrystalReportViewer = new CrystalReportViewer();
//Get the report source
reportSource = oReportClientDocument.getReportSource();
//set the reportsource property of the viewer
oCrystalReportViewer.setReportSource(reportSource);
//set viewer attributes
oCrystalReportViewer.setOwnPage(true);
//set the CrystalReportViewer print mode
oCrystalReportViewer.setPrintMode(CrPrintMode.ACTIVEX);
oCrystalReportViewer.setParameterFields(fields);
oCrystalReportViewer.setEnableParameterPrompt(true);
//refresh the CrystalReportViewer if necessary (only required once)
if (session.getAttribute("refreshed") == null) {
oCrystalReportViewer.refresh();
session.setAttribute("refreshed", "true");
}
oCrystalReportViewer.setZoomFactor(100);
oCrystalReportViewer.processHttpRequest(request, response,
getServletConfig().getServletContext(), null);*/
} catch (ReportSDKException e) {
out.print(e);
}
%>
そしてスタックトレースは
WARNING: StandardWrapperValve[jsp]: PWC1406: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at org.apache.jsp.reportViewer_jsp._jspService(reportViewer_jsp.java:80)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:88)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:428)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98)
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:722)