为什么我的Java应用程序看不到* .jrxml? [英] Why My Java Application can't see the *.jrxml?
问题描述
我的项目具有以下架构:
My project has the following architecture :
我的模板是report1.jrxml,然后当我执行此代码时:
My template is "report1.jrxml", then when i excute this code :
TableModel model = (TableModel) masterTable.getModel();
JRTableModelDataSource data = new JRTableModelDataSource(model);
String reportSource ="report1.jrxml";
try {
JasperReport jr = JasperCompileManager.compileReport(reportSource);
JasperPrint jp = JasperFillManager.fillReport(jr, null,data);
} catch (JRException ex)
{
Logger.getLogger(master.class.getName()).log(Level.SEVERE, null, ex);
}
我收到此错误(我很抱歉法语,但是非常容易理解:p):
I get this error(I'm sorry for the french language, but is quite understandable :p):
Grave: null
net.sf.jasperreports.engine.JRException: java.io.FileNotFoundException: report1.jrxml (Le fichier spécifié est introuvable)
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.compile(JasperCompileManager.java:171)
at net.sf.jasperreports.engine.JasperCompileManager.compileReport(JasperCompileManager.java:448)
at testjasper.master.jButton1ActionPerformed(master.java:319)
at testjasper.master.access$900(master.java:25)
at testjasper.master$FormListener.actionPerformed(master.java:259)
Netbeans说该文件不能找到了,但正如你在截图中看到的,我ts存在吗?
如何解决这个问题?
相反,问题是什么?
我的问候。 :p
Netbeans says that the file can't be found , but as you can see in the screenshot, its exists ? How can I solve this "problem" ? rather, what's the problem ? My regards. :p
推荐答案
Jasper报告看不到它,因为该文件是嵌入式资源(它不作为文件存在,但Jar文件中的条目)
Jasper reports can't see it because the file is an embedded resource (it doesn't exist as a file, but a entry in the Jar file)
您需要使用 getClass()获取对它的引用.getResource(/ testjasper / report1.jrxml)
将返回 URL
。
从内存中,你应该能够Jasper a InputStream
,这可以通过使用 URL#openConnection
From memory, you should be able to Jasper a InputStream
, this can be achieved by using URL#openConnection
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