com.hughes.exception.HughesException at com.hughes.service.serviceImpl.HomeServiceImpl.sendTicketEmail(HomeServiceImpl.java:1094) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ....................................................... .......................................... Caused by: net.sf.jasperreports.engine.JRException: Resource not found at : nullinvoiceDetail.jasper at net.sf.jasperreports.repo.RepositoryUtil.getResource(RepositoryUtil.java:155) at net.sf.jasperreports.repo.RepositoryUtil.getReport(RepositoryUtil.java:126) at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateReport(JRFillSubreport.java:317) at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluateSubreport(JRFillSubreport.java:347) at net.sf.jasperreports.engine.fill.JRFillSubreport.evaluate(JRFillSubreport.java:275) at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:257) at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:473) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2021) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:755) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:265) at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:128) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:836) at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:765) at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:84) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:624) at com.hughes.service.serviceImpl.HomeServiceImpl.sendTicketEmail(HomeServiceImpl.java:1046) ... 81 more
JasperReport jasperReport = JasperCompileManager.compileReport(hdnWebInfPath+seperator+"reports"+seperator+"invoice.jrxml");
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, model, new JREmptyDataSource());
JasperExportManager.exportReportToPdfFile(jasperPrint, fPath+seperator+fileName);
这在简单报告时起作用 不适用于子报告......
答案 0 :(得分:1)
我的Jarper知识是几个旧版本,但希望这有用。
这是因为jasper找不到您的子报表。 Jasper可以编译您的报告,但是当您调用compileReport
时,它不会编译引用的子报告。填写报表时,找不到引用的子报表,因为它们在工作目录中不可用。
(每次请求时编译报告都是一个坏主意(除非你有一些非常重要的理由这样做)。)
有几种方法可以解决这个问题。一种方法是确保路径正确并在应用程序部署之前预编译报告。链接Alex K提供的是一个很好的来源。如果需要在应用程序编译中,则可以使用以下解决方案:
在网络应用程序中,我发现一个工作实践是处理编译并填写报告是手动管理它。这是我写的助手类。希望它有用(它使用弹簧,但这些部件很容易更换)。
public class ReportSource {
// Key = document name, Value = path to .jrxml
private Map<String, String> reports;
private final Map<String, JasperReport> compiled;
private final boolean lazy;
private final Logger log = Logger.getLogger(ReportSource.class);
public ReportSource(final boolean lazyBuild) {
super();
lazy = lazyBuild;
compiled = new HashMap<String, JasperReport>();
}
public void setCompileTargets(final Map<String, String> targets) {
reports = new HashMap<String, String>(targets);
if (!lazy) {
for (final String key : targets.keySet()) {
compile(key);
}
}
}
public JasperReport getReport(final String reportName) {
if (compiled.get(reportName) == null) { // not found or not compiled
log.info("Lazily compiling: " + reportName);
return compile(reportName);
}
return compiled.get(reportName);
}
private JasperReport compile(final String reportName) {
final String path = reports.get(reportName);
InputStream fis = null;
JasperReport report = null;
try {
final FileSystemResourceLoader resourceLoader = new FileSystemResourceLoader();
fis = resourceLoader.getResource(path).getInputStream();
log.info("Compiling report: " + reportName + " (" + path + ")");
report = JasperCompileManager.compileReport(fis);
} catch (final IOException ioe) {
throw new IllegalStateException("Configuration error file: " + path + " (for key: " + reportName +") not found.", ioe);
} catch (final JRException jre) {
throw new IllegalStateException("Configuration error file: " + path + " (for key: " + reportName +") not found.", jre);
}
compiled.put(reportName, report);
return report;
}
}
在这个类的帮助下,你可以在这样的文档中引用子报告:
<subreport>
<reportElement x="0" y="0" width="200" height="30"/>
<subreportParameter name="data">
<subreportParameterExpression><![CDATA[$P{data}]]></subreportParameterExpression>
</subreportParameter>
<subreportParameter name="REPORT_RESOURCE_BUNDLE">
<subreportParameterExpression><![CDATA[$P{REPORT_RESOURCE_BUNDLE}]]></subreportParameterExpression>
</subreportParameter>
<dataSourceExpression><![CDATA[new net.sf.jasperreports.engine.JREmptyDataSource()]]></dataSourceExpression>
<subreportExpression class="net.sf.jasperreports.engine.JasperReport"><![CDATA[$P{data}.getSubreport("name_of_your_subreport")]]></subreportExpression>
</subreport>
此处$P{data}
是作为文档参数提供的合适对象,其中getSubreport()
最终调用ReportSource.getReport()
。如果$P{reportSource}.getReport("....")
直接作为参数提供,它当然可以是ReportSource
。 (我们使用ReportModel方法;简而言之,它是适合报告上下文的表示模型)。