带指纹识别器的导航器中的小程序出错
首先非常感谢您抽出时间，我在开发一个通过指纹控制用户的小程序时遇到问题，使用 DigitalPersona SDK 在 eclipse 中开发，问题是当我从网页浏览器运行它时，
Exception in thread "AWT-EventQueue-2" java.lang.RuntimeException: com.digitalpersona.onetouch.jni.JniException
at com.digitalpersona.onetouch.capture._impl.DPFPCaptureFactoryImpl$CaptureImpl.startCapture(DPFPCaptureFactoryImpl.java:187)
at CDesVerifinger.formComponentShown(CDesVerifinger.java:76)
at CDesVerifinger.access$1(CDesVerifinger.java:73)
at CDesVerifinger$1.componentShown(CDesVerifinger.java:64)
at java.awt.Component.processComponentEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: com.digitalpersona.onetouch.jni.JniException
at com.digitalpersona.onetouch.jni.AcquisitionLibrary.getInstance(AcquisitionLibrary.java:50)
at com.digitalpersona.onetouch.jni.Acquisition.<init>(Acquisition.java:45)
at com.digitalpersona.onetouch.capture._impl.DPFPCaptureFactoryImpl$CaptureImpl.startCapture(DPFPCaptureFactoryImpl.java:104)
... 16 more
非常感谢非常感谢您的帮助，
美好的一天
First thank you very much for your time, I have a problem with the development of an applet to control users via fingerprint, as developed in eclipse using the DigitalPersona SDK, the problem is when I run it from a web page browser,
Exception in thread "AWT-EventQueue-2" java.lang.RuntimeException: com.digitalpersona.onetouch.jni.JniException
at com.digitalpersona.onetouch.capture._impl.DPFPCaptureFactoryImpl$CaptureImpl.startCapture(DPFPCaptureFactoryImpl.java:187)
at CDesVerifinger.formComponentShown(CDesVerifinger.java:76)
at CDesVerifinger.access$1(CDesVerifinger.java:73)
at CDesVerifinger$1.componentShown(CDesVerifinger.java:64)
at java.awt.Component.processComponentEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: com.digitalpersona.onetouch.jni.JniException
at com.digitalpersona.onetouch.jni.AcquisitionLibrary.getInstance(AcquisitionLibrary.java:50)
at com.digitalpersona.onetouch.jni.Acquisition.<init>(Acquisition.java:45)
at com.digitalpersona.onetouch.capture._impl.DPFPCaptureFactoryImpl$CaptureImpl.startCapture(DPFPCaptureFactoryImpl.java:104)
... 16 more
Thank you very much for any help
good day
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评论（4）
您需要将
dptojni.jar添加到项目的库中，它位于c:/programs files/digital persona/bin/java中。或者您可以获取类jniException并将其添加到您的项目中。You need to add the
dptojni.jarto the library of your project, it is inc:/programs files/digital persona/bin/java. Or you can get the classjniExceptionand add it to your project.遇到同样的问题，这里有人告诉这是
调用createCapture之后必须要解决的问题。我现在就尝试这个答案。
Having the same problem, here is someone telling that is necessary put
after calling createCapture to solve it. I will try this answer now.
您必须对 jar 文件进行签名。这就是我所做的，现在它正在发挥作用。
You have to sign the jar files. That's what I did, and now it's working.
确保在调用 setCapturePriority 方法之前已实例化 DPFPCapture 对象，并确保在使用完捕获对象后停止捕获
Make sure you have instatiated the DPFPCapture object before calling the setCapturePriority method and also make sure you stop capture after you have finished using the capture object