unsatisfiedLinkError：无法加载库“tsclib”：找不到指定的模块

Question

我试图打印TSC-244 Pro条形码标签打印机从GWT网络应用程序。他们给出tsclib.dll。因此，我使用jna.jar并将tsclib.dll文件复制到C:\windows和[my_project_dir]\war\WEB-INF\lib。它的工作，但当我部署到apache Tomcat。它不工作，我有以下错误。请给我解决办法。谢谢。

严重：分派传入的RPC调用com.google.gwt.user.server.RPC.expectiontedException：服务方法“Public abstract boolean com.mbc.client.controller.print（java.lang.String,java.util.ArrayList）throws java.lang.IllegalArgumentException”引发意外异常：java.lang.UnsatisfiedLinkError：无法加载库“tsclib”：找不到指定的模块。

at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:385)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:588)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Unknown Source)

原因：java.lang.UnsatisfiedLinkError：无法加载库“tsclib”：找不到指定的模块。

at com.sun.jna.NativeLibrary.loadLibrary(NativeLibrary.java:164)
at com.sun.jna.NativeLibrary.getInstance(NativeLibrary.java:237)
at com.sun.jna.Library$Handler.<init>(Library.java:140)
at com.sun.jna.Native.loadLibrary(Native.java:375)
at com.sun.jna.Native.loadLibrary(Native.java:360)
at com.mbc.server.impls.TscLibDll.<clinit>(TscLibDll.java:8)
at com.mbc.server.util.BarCode.openport(BarCode.java:73)
at com.mbc.server.util.Printer.openBarCodePrinter(Printer.java:67)
at com.mbc.server.util.Printer.printtsc(Printer.java:97)
at com.mbc.server.util.Printer.print(Printer.java:35)
at com.mbc.server.ControllerServlet.print(ControllerServlet.java:1390)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
... 17 more

Answer 1

我解决了这个问题。我找不到tsclib.dll，因为我刚刚下载了32位的dll文件。我的apache tomcat程序位于64位中。因此，为什么不能加载库'tsclib'。现在我刚刚下载了64位dll文件并复制到C:\windows\syswow64\。是工作！不错。