打开输入流,我设计使用iReport的碧玉报告,从给定的URL需要一个参数,获取的图像:碧玉:错误的URL
的参数是在Twitter上用户的网名和网址它是个人资料图片。
<image>
<reportElement x="4" y="51" width="73" height="64"/>
<imageExpression><![CDATA["https://api.twitter.com/1/users/profile_image?screen_name="+$F{user_screen_name}+"&size=bigger"]]></imageExpression>
</image>
它在图像存在时效果很好。如果它不抛出以下异常:
Error filling print... net.sf.jasperreports.engine.JRException: Error opening input stream from URL :
https://api.twitter.com/1/users/profile_image?screen_name=CPTCurtisHervey&size=bigger
Setting up the file resolver... net.sf.jasperreports.engine.JRRuntimeException:
net.sf.jasperreports.engine.JRException: Error opening input stream from URL :
https://api.twitter.com/1/users/profile_image?screen_name=CPTCurtisHervey&size=bigger
at net.sf.jasperreports.repo.DefaultRepositoryService.getInputStream(DefaultRepositoryService.java:138)
at net.sf.jasperreports.repo.RepositoryUtil.findInputStream(RepositoryUtil.java:186)
at net.sf.jasperreports.repo.RepositoryUtil.getBytes(RepositoryUtil.java:202)
at net.sf.jasperreports.engine.JRImageRenderer.getInstance(JRImageRenderer.java:141)
at net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:498)
at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:441)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:257)
at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:468)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillColumnBand(JRVerticalFiller.java:2037)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillDetail(JRVerticalFiller.java:761)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportContent(JRVerticalFiller.java:291)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:133)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:903)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:813)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:58)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:417)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:247)
at com.jaspersoft.ireport.designer.compiler.IReportCompiler.run(IReportCompiler.java:878)
at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:572)
at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:997) Caused by:
net.sf.jasperreports.engine.JRException: Error opening input stream from URL :
https://api.twitter.com/1/users/profile_image?screen_name=CPTCurtisHervey&size=bigger
at net.sf.jasperreports.engine.util.JRLoader.getInputStream(JRLoader.java:314)
at net.sf.jasperreports.repo.DefaultRepositoryService.getInputStream(DefaultRepositoryService.java:121)
... 19 more Caused by: java.io.FileNotFoundException:
https://api.twitter.com/1/users/profile_image?screen_name=CPTCurtisHervey&size=bigger
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1401)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254)
at java.net.URL.openStream(URL.java:1029)
at net.sf.jasperreports.engine.util.JRLoader.getInputStream(JRLoader.java:310)... 20 more
Print not filled. Try to use an EmptyDataSource...
我该如何处理jrxml文件中的这种情况?
我想简单地添加一个固定的URL地址,以防万一找不到。
任何人有什么建议吗?
谢谢!
谢谢! 帮了很多! – Etay