想要建议解决我在netbeans中的应用程序加载jasper报告的问题。 [英] want suggetions to solve problem of jasper report loading in my application in netbeans.
问题描述
这是代码段。
public InputStream getin（）
{
InputStream in = getClass （）。getResourceAsStream（\\Reports\\SaleBill.jrxml）;
返回;
}
< br $>
public static void SalBill（String sql）{
InputStream in;
JasperDesign jd = null;
in = new JasperClass（）。getin（）;
jd = JRXmlLoader.load（in）;
JRDesignQuery newQuery = new JRDesignQuery（）;
newQuery.setText（sql）;
jd.setQuery （newQuery）;
JasperReport jr = JasperCompileManager.compileReport（jd）;
JasperPrint jasperPrint = JasperFillManager.fillReport（jr，null，con ）;
JasperViewer jasperViewer =新的JasperViewer（jasperPrint，false）;
ja sperViewer.setVisible（true）;
}
当我运行上面的代码时它会显示错误。 。
net.sf.jasperreports.engine.JRException：java.net.MalformedURLException
at net.sf.jasperreports.engine.xml .JRXmlLoader.loadXML（JRXmlLoader.java:247）
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML（JRXmlLoader.java:226)
at net .sf.jasperreports.engine.xml.JRXmlLoader.load（JRXmlLoader.java:214）
at controller.JasperClass.SalBill（JasperClass.java:93）
库存.Sale_Product_Autom.jButton97ActionPerformed（Sale_Product_Autom.java:1160）
在inventory.Sale_Product_Autom.access $ 3300（Sale_Product_Autom.java:33）
在inventory.Sale_Product_Autom $ 31.actionPerformed（Sale_Product_Autom） .java：755）
at javax.swing.AbstractButton.fireActionPerformed（AbstractButton.java:2018)
at javax.swing.AbstractButton $ Handler.actionPerformed（AbstractButton.java ：2341 ）
at javax.swing.DefaultButtonModel.fireActionPerformed（DefaultButtonModel.java:402）
at javax.swing.DefaultButtonModel.setPressed（DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased（BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent（Component.java:6505)< br / >
at javax.swing.JComponent.processMouseEvent（JComponent.java:3320）
at java.awt.Component.processEvent（Component.java:6270)
at java.awt.Container.processEvent（Container.java:2229)
at java.awt.Component.dispatchEventImpl（Component.java:4861)
at java。 awt.Container.dispatchEventImpl（Container.java:2287）
at java.awt.Component.dispatchEvent（Component.java:4687)
at java.awt.LightweightDispatcher。 retargetMouseEvent（Container.java:4832）
at java.awt.LightweightDispatcher.processMouseEvent（Container.java:4492)
at java.awt.LightweightDispatc her.dispatchEvent（Container.java:4422）
at java.awt.Container.dispatchEventImpl（Container.java:2273)
at java.awt.Window.dispatchEventImpl（ Window.java:2719）
at java.awt.Component.dispatchEvent（Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl（EventQueue.java： 735）
在java.awt.EventQueue.access $ 200（EventQueue.java:103）
在java.awt.EventQueue $ 3.run（EventQueue.java:694）
at java.awt.EventQueue $ 3.run（EventQueue.java:692)
at java.security.AccessController.doPrivileged（Native Method）
在java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）
在java.security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:87）
at java.awt.EventQueue $ 4.run（EventQueue.java:708)
at java.awt.EventQueue $ 4.run（EventQueue.java:706)
at java .security.AccessController.doPrivileged（原生方法）
在java .security.ProtectionDomain $ 1.doIntersectionPrivilege（ProtectionDomain.java:76）
at java.awt.EventQueue.dispatchEvent（EventQueue.java:705)
at java.awt。 EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:242）
at java.awt.EventDispatchThread.pumpEventsForFilter（EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy（ eventDispatchThread.java:150）
at java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:146）
at java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java： 138）
在java.awt.EventDispatchThread.run（EventDispatchThread.java:91）
引起：java.net.MalformedURLException
at java.net.URL。< init>（URL.java:619）
java.net.URL上的
。< init>（URL.java:482）
在java.net.URL。< init>（URL.java:431）
at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity（XMLEnti）在$ com $。 sun.org.apache.xerces.internal.parsers.XML11Configuration.parse（XML11Configuration.java:812）
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse（XML11Configuration .java：777）
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse（XMLParser.java:141）
at com.sun .org.apache.xerces.internal.parsers.AbstractSAXParser.parse（AbstractSAXParser.java:1213）
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl $ JAXPSAXParser.parse（ SAXParserImpl.java:649）
at org.apache.commons.digester.Digester.parse（Digester.java:1647）
at net.sf.jasperreports.engine。 xml.JRXmlLoader.loadXML（JRXmlLoader.java:239）
... 42更多
引起：java.lang.NullPointerException
at java.net.URL。< init>（URL.java:524）
... 53更多
请给我提示，以便我可以解决..
提前提前..
here is the code snippet.
public InputStream getin()
{
InputStream in = getClass().getResourceAsStream("\\Reports\\SaleBill.jrxml");
return in;
}
public static void SalBill(String sql) {
InputStream in;
JasperDesign jd = null;
in = new JasperClass().getin();
jd = JRXmlLoader.load(in);
JRDesignQuery newQuery = new JRDesignQuery();
newQuery.setText(sql);
jd.setQuery(newQuery);
JasperReport jr = JasperCompileManager.compileReport(jd);
JasperPrint jasperPrint = JasperFillManager.fillReport(jr, null, con);
JasperViewer jasperViewer = new JasperViewer(jasperPrint, false);
jasperViewer.setVisible(true);
}
when i run above code it shows error like..
net.sf.jasperreports.engine.JRException: java.net.MalformedURLException
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:247)
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:226)
at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:214)
at controller.JasperClass.SalBill(JasperClass.java:93)
at inventory.Sale_Product_Autom.jButton97ActionPerformed(Sale_Product_Autom.java:1160)
at inventory.Sale_Product_Autom.access$3300(Sale_Product_Autom.java:33)
at inventory.Sale_Product_Autom$31.actionPerformed(Sale_Product_Autom.java:755)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Caused by: java.net.MalformedURLException
at java.net.URL.<init>(URL.java:619)
at java.net.URL.<init>(URL.java:482)
at java.net.URL.<init>(URL.java:431)
at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:610)
at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:189)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:812)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649)
at org.apache.commons.digester.Digester.parse(Digester.java:1647)
at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:239)
... 42 more
Caused by: java.lang.NullPointerException
at java.net.URL.<init>(URL.java:524)
... 53 more
please give me hint so i can solve it..
thanx in advance..
推荐答案
3300（Sale_Product_Autom.java:33）
在inventory.Sale_Product_Autom
3300(Sale_Product_Autom.java:33)
at inventory.Sale_Product_Autom
31.actionPerformed（Sale_Product_Autom.java:755）
at javax.swing.AbstractButton.fireActionPerformed（AbstractButton.java:2018）
at javax.swing.AbstractButton
31.actionPerformed(Sale_Product_Autom.java:755)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
at javax.swing.AbstractButton
Handler。 actionPerformed（AbstractButton.java:2341）
at javax.swing.DefaultButtonModel.fireActionPerformed（DefaultButtonModel.java:402）
at javax.swing.DefaultButtonModel.setPressed（DefaultButtonModel。 java：259）
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased（BasicButtonListener.java:252）
at java.awt.Component.processMouseEvent（Component。 java：6505）
at javax.swing.JComponent.processMouseEvent（JComponent.java:3320)
at java.awt.Component.processEvent（ Component.java:6270)
at java.awt.Container.processEvent（Container.java:2229)
at java.awt.Component.dispatchEventImpl（Component.java： 4861）
at java.awt.Container.dispatchEventImpl（Container.java:2287)
at java.awt.Component.dispatchEvent（Component.java:4687)br />
at java.awt.LightweightDispatcher.retargetMouseEvent（Container.java:4832）
at java.awt.LightweightDispatcher.processMouseEvent（Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent（Container.java:4422）
at java.awt.Container.dispatchEventImpl（Container.java:2273)
at java .awt.Window.dispatchEventImpl（Window.java:2719）
at java.awt.Component.dispatchEvent（Component.java:4687)
at java.awt.EventQueue .dispatchEventImpl（EventQueue.java:735)
at java.awt.EventQueue.access
Handler.actionPerformed(AbstractButton.java:2341)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.Component.processMouseEvent(Component.java:6505)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3320)
at java.awt.Component.processEvent(Component.java:6270)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access
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