当我使用碧玉报告时出现 FileNotFoundException

Question

我正在尝试在 Liferay portlet 中创建 Jasper 报告，但出现以下错误：

   Caused by: net.sf.jasperreports.engine.JRException: java.io.FileNotFoundException:    src\com\ztscorp\lms\reports\HibernateQueryDemoReport.jasper (The system cannot find the path specified)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:176)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:156)
        at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:143)
        at com.ztscorp.lms.portlet.SurveyReportController.processSearchSurvey(SurveyReportController.java:86)
        ... 175 more
Caused by: java.io.FileNotFoundException: src\com\ztscorp\lms\reports\HibernateQueryDemoReport.jasper (The system cannot find the path specified)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(FileInputStream.java:106)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:171)
        ... 178 more
13:08:01,916 ERROR [[SurveyReportAdministration]] Servlet.service() for servlet SurveyReportAdministration threw exception
java.io.FileNotFoundException: src\com\ztscorp\lms\reports\HibernateQueryDemoReport.jasper (The system cannot find the path specified)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(FileInputStream.java:106)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:171)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:156)
        at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:143)
        at com.ztscorp.lms.portlet.SurveyReportController.processSearchSurvey(SurveyReportController.java:86)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at javax.portlet.GenericPortlet.processAction(GenericPortlet.java:169)
        at com.liferay.portlet.FilterChainImpl.doFilter(FilterChainImpl.java:70)
        at com.liferay.portal.kernel.portlet.PortletFilterUtil.doFilter(PortletFilterUtil.java:48)
        at com.liferay.portal.kernel.servlet.PortletServlet.service(PortletServlet.java:92)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter  (ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.ztscorp.lms.utils.AuthenticateFilter.doFilter(AuthenticateFilter.java:99)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:638)
        at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:543)
        at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:480)
        at com.liferay.portlet.InvokerPortletImpl.invoke(InvokerPortletImpl.java:638)
        at com.liferay.portlet.InvokerPortletImpl.invokeAction(InvokerPortletImpl.java:687)
        at com.liferay.portlet.InvokerPortletImpl.processAction(InvokerPortletImpl.java:360)
        at com.liferay.portal.action.LayoutAction.processPortletRequest(LayoutAction.java:784)
        at com.liferay.portal.action.LayoutAction.processLayout(LayoutAction.java:582)
        at com.liferay.portal.action.LayoutAction.execute(LayoutAction.java:232)
        at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at com.liferay.portal.struts.PortalRequestProcessor.process(PortalRequestProcessor.java:153)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
        at com.liferay.portal.servlet.MainServlet.callParentService(MainServlet.java:508)
        at com.liferay.portal.servlet.MainServlet.service(MainServlet.java:485)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:309)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:121)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:182)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.autologin.AutoLoginFilter.processFilter(AutoLoginFilter.java:254)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:638)
        at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:444)
        at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:382)
        at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:310)
        at com.liferay.portal.servlet.FriendlyURLServlet.service(FriendlyURLServlet.java:134)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.strip.StripFilter.processFilter(StripFilter.java:261)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:126)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.gzip.GZipFilter.processFilter(GZipFilter.java:110)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.secure.SecureFilter.processFilter(SecureFilter.java:182)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
        at com.liferay.portal.kernel.servlet.BaseFilter.processFilter(BaseFilter.java:196)
        at com.liferay.portal.servlet.filters.i18n.I18nFilter.processFilter(I18nFilter.java:222)
        at com.liferay.portal.kernel.servlet.BaseFilter.doFilter(BaseFilter.java:123)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

这是我的代码：

Connection connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/lms?user=root&password=admin");

JasperReport report = JasperCompileManager.compileReport("src/com/ztscorp/lms/reports/HibernateQueryDemoReport.jasper");
JasperPrint print = JasperFillManager.fillReport(report, new HashMap(), connection);
JasperExportManager.exportReportToPdfFile(print, "reports/myjasperfile.pdf");

请帮帮我。

Answer 1

为了帮助未来的用户：

我看到了这些问题

1. OP 正在尝试编译.jasper，这些.jasper 文件已经编译了命令JasperCompileManager.compileReport 应该用于将.jrxml 编译为.jasper。有关 jasper 报告文件类型的更多信息，请参阅What is the difference between JasperReport formats?

2. 如果你有 .jasperinside 在你的包/发行版 (src)，加载报告的正确方法是使用类加载器（因此 src 将更改为 bin）。

   InputStream jasperStream = Thread.currentThread().getContextClassLoader().getResourceAsStream("com/ztscorp/lms/reports/HibernateQueryDemoReport.jasper");
   JasperReport report = (JasperReport) JRLoader.loadObject(jasperStream);
   

   如果它在分布之外，您可以简单地使用File 与相对或绝对路径

   JasperReport report = (JasperReport) JRLoader.loadObject(new File("jasperFolder/HibernateQueryDemoReport.jasper");
   

Answer 2

好的。伙计们，这对我有用

  ***con=DBConnection.getConnection();
  JasperPrint  jp = JasperManager.fillReport(<reportname>.jasper",null,con);
        JasperViewer.viewReport(jp, false);***

在此复制或剪切 jasper 文件后，例如（your_reportname.jasper 和 your_reportname.jrxml）并转到项目的文件目录（在 netbeans 中很容易找到）并将它们粘贴到项目的 build.xml 文件夹中。确保您已导入必要的类 jar 并运行.. 我在我的 netbeans ide 中使用 jasperreport 3.7.4 插件为 netbeans 运行

Answer 3

我认为您的 .jasper 文件不在应用程序的上下文路径中（至少应用程序没有找到它）。

您确定 /report 文件夹在构建路径中吗？ 如果没有，请将其添加到构建路径。

否则尝试使用类似JasperReport report = JasperCompileManager.compileReport("classpath:src/com/ztscorp/lms/reports/HibernateQueryDemoReport.jasper");的东西

试试这个，

改变

JasperReport report = JasperCompileManager.compileReport("src/com/ztscorp/lms/reports/HibernateQueryDemoReport.jrxml");

到

JasperReport report = JasperCompileManager.compileReport(new File("").getAbsolutePath()+"src/com/ztscorp/lms/reports/HibernateQueryDemoReport.jrxml");

希望对你有帮助，

-阿努杰

Answer 4

在我的情况下，我有一个图像 url 参数，并且必须像这样将属性 isForPropmting 显式设置为 false：

<parameter name="LOGO_URL" class="java.lang.String" isForPrompting="false">
        <defaultValueExpression><![CDATA[]]></defaultValueExpression>
    </parameter>