贾斯珀报道中的FileNotFoundException
贾斯珀报道中的FileNotFoundException
提问于 2014-12-26 12:10:02
我正在试图编译jasper文件(Invoice.jrxml)，但是我得到了这个FileNotFound异常错误
变量sourceFileName包含文件所在文件的名称。
src/com.medicam.servlets/Invoice.jrxml
下面是我的代码
String [] prod = request.getParameterValues("prodn[]");
String [] pkgdate = request.getParameterValues("pkgdate[]");
String [] manufact = request.getParameterValues("manufact[]");
String [] exp = request.getParameterValues("exp[]");
String [] batch = request.getParameterValues("batch[]");
String [] unit = request.getParameterValues("unit[]");
String [] qty = request.getParameterValues("qty[]");
String [] subtot = request.getParameterValues("subtot[]");
ArrayList<String> prodname = new ArrayList<String>();
ArrayList<String> packagedate = new ArrayList<String>();
ArrayList<String> manufactdate = new ArrayList<String>();
ArrayList<String> exipry = new ArrayList<String>();
ArrayList<String> batchno = new ArrayList<String>();
ArrayList<String> unitprice = new ArrayList<String>();
ArrayList<String> quantity = new ArrayList<String>();
ArrayList<String> Subtotal = new ArrayList<String>();
Map<String, Object> param = new HashMap<String, Object>();
for(int i=0;i<prod.length;i++)
{
prodname.add(prod[i]);
packagedate.add(pkgdate[i]);
manufactdate.add(manufact[i]);
exipry.add(exp[i]);
batchno.add(batch[i]);
unitprice.add(unit[i]);
quantity.add(qty[i]);
Subtotal.add(subtot[i]);
}
param.put("prodname", prodname);
param.put("pkgdate", packagedate);
param.put("manfdate", manufactdate);
param.put("expdate", exipry);
param.put("batch", batchno);
param.put("unit", prodname);
param.put("qty", quantity);
param.put("subtot", Subtotal);
try {
String sourceFileName = "Invoice.jrxml";
JasperReport jasperReport = JasperCompileManager.compileReport(sourceFileName);
JasperFillManager.fillReportToFile(
sourceFileName, param);
JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, param, new JREmptyDataSource());
JasperViewer.viewReport(jasperPrint, false);
}
catch (Exception e) {
e.printStackTrace();
} StackTrace
net.sf.jasperreports.engine.JRException: java.io.FileNotFoundException: Invoice.jrxml (No such file or directory)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:214)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:185)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:176)
at net.sf.jasperreports.engine.JasperCompileManager.compile(JasperCompileManager.java:172)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:459)
at com.medicam.servlets.GenerateReportForPurchase.doPost(GenerateReportForPurchase.java:111)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:526)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:655)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1566)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1523)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.FileNotFoundException: Invoice.jrxml (No such file or directory)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:146)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:209)
... 29 more回答 3
Stack Overflow用户
回答已采纳
发布于 2014-12-26 12:24:12
显然，不能通过简单的文件名找到报表文件。
试着以流的形式加载。像这样
InputStream is=this.getClass().getResourceAsStream("/com/medicam/servlets/Invoice.jrxml")
JasperReport jasperReport = JasperCompileManager.compileReport(is);Stack Overflow用户
发布于 2014-12-26 12:23:52
您需要提供完整的文件名或相对于java当前目录的文件名。与使用文件名相比，最好的替代方法是使用通过InputStream检索的Class#getResourceAsStream。即使您将您的功能打包到jar存档中，它也将继续工作。另一方面，使用文件名意味着您需要将报告作为一个独立的文件分发，并且您必须注意您所提供的更正完整或相对文件名。
Stack Overflow用户
发布于 2014-12-26 12:25:14
请提及文件的完整路径，如
字符串sourceFileName = "D:\APPS\Invoice.jrxml"；
如果是这样，"Invoice.jrxml“存在于D驱动器的应用程序文件夹中(这是用于windows的)
字符串sourceFileName = "/usr/local/Invoice.jrxml"；
如果是这样，"Invoice.jrxml“存在于本地目录中(这是Linux的)。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/27656934
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