我一直在Windows平台上使用Netbeans和Tomcat开发视频共享Web应用程序(如youtube) . 在那里,我想在视频上传后立即生成视频文件的缩略图 . 所以在网上搜索我发现了一个叫做Xuggle的东西 . 我在我的Tomcat的lib文件夹中安装了Xuggler . 我已经设置了必要的环境变量 . 当我只运行一个java应用程序时,我得到了结果,但是当我对Java Web应用程序执行相同操作时,我会收到以下错误:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from
fulfilling this request.
exception
javax.servlet.ServletException: Servlet execution threw an exception
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:393)
root cause
java.lang.UnsatisfiedLinkError: com.xuggle.xuggler.XugglerJNI.Global_NO_PTS_get()J
com.xuggle.xuggler.XugglerJNI.Global_NO_PTS_get(Native Method)
com.xuggle.xuggler.Global.<clinit>(Global.java:240)
xugglerPack.Main.<clinit>(Main.java:43)
xugglerPack.VT.processRequest(VT.java:86)
xugglerPack.VT.doPost(VT.java:137)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.netbeans.modules.web.monitor.server.MonitorFilter.doFilter(MonitorFilter.java:3
93)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.26
logs.
================================================== =========================================
@ pd40 >>>我重新安装了Xuggler(这次是在C:\ Program Files,我在安装后重启了我的电脑 . 我在我的环境变量中设置了以下内容:
XUGGLE_HOME = C:\ Program Files(x86)\ Xuggle
CLASSPATH = .; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib \ commons-cli.jar; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib \ logback-classic.jar; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib \ logback-core.jar; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib \ slf4j-api.jar; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib \ xuggle-xuggler.jar; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib \ xuggle-xuggler-test.jar;
PATH = C:\ Program Files(x86)\ Xuggle \ bin; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ bin; C:\ Apache Tomcat 6.0.26 \ Apache Tomcat 6.0.26 \ lib; C :\ Program Files(x86)\ Xuggle \ lib
我已经在Tomcat的\ lib文件夹中复制了Xuggle / java / jars(6个jar文件)的jar并设置了它们的CLASSPATH .
现在,当我在Web应用程序中执行此操作时,我仍然遇到问题,但独立的Java应用程序可以很好地生成图像 . 怎么了?当我上传视频时,它上传但没有生成缩略图,我收到以下错误...
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from
fulfilling this request.
exception
javax.servlet.ServletException: Servlet execution threw an exception
root cause
java.lang.NoClassDefFoundError: Could not initialize class com.xuggle.ferry.FerryJNI
com.xuggle.ferry.RefCounted.acquire(RefCounted.java:179)
com.xuggle.xuggler.IContainer.copyReference(IContainer.java:80)
com.xuggle.mediatool.AMediaCoderMixin.<init>(AMediaCoderMixin.java:68)
com.xuggle.mediatool.MediaReader.<init>(MediaReader.java:137)
com.xuggle.mediatool.ToolFactory.makeReader(ToolFactory.java:77)
xugglerPack.Main.main(Main.java:51)
xugglerPack.VT.processRequest(VT.java:87)
xugglerPack.VT.doPost(VT.java:135)
javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
note The full stack trace of the root cause is available in the Apache Tomcat/6.0.26
logs.
1 回答
确保将Xuggler lib放在windows PATH 或 LD_LIBRARY_PATH 中 .
与Tomcat native相似 . 我猜你已经尝试过了 .
您可能还想看看this thread