Epson Java SDK не может претендовать на доступ к принтеру внутри контейнера Docker ⇐ JAVA

[Anonymous]

Это фрагмент моего кода: < /p>
try {
ptr.open("WIFI");
log.info("printer status open {}", ptr.getState());

} catch (JposException e) {
throw new RuntimeException("This device has not been registered, or cannot use.", e);
}

try {
// Get the exclusive control right for the opened device.
// Then the device is disabled from other applications.
ptr.claim(3000);
log.info("printer status claim {}", ptr.getState());
} catch (JposException e) {
try {
log.info("printer status claim error {}", ptr.getState());
ptr.close();
} catch (JposException closeException) {
// Log the close exception if needed
}
throw new RuntimeException("Fails to get the exclusive access for the device.", e);
}
< /code>
На моем хост -машине все работает правильно, но внутри контейнера Docker у меня есть следующая ошибка < /p>
printer-service-1 | 2024-07-16 19:29:37.872 INFO 8 --- [nio-8080-exec-2] com.gdma.printer.service.PrinterService : printer status open 2
printer-service-1 | 2024-07-16 19:29:37.873 INFO 8 --- [nio-8080-exec-2] com.gdma.printer.service.PrinterService : printer status claim error 2
printer-service-1 | 2024-07-16 19:29:37.878 ERROR 8 --- [nio-8080-exec-2] o.a.c.c.C.[.[.[/].[dispatcherServlet] : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.RuntimeException: Fails to get the exclusive access for the device.] with root cause
printer-service-1 |
printer-service-1 | jpos.JposException: PortHandler Win32 error.
printer-service-1 | at jp.co.epson.upos.core.v1_14_0001T1.pntr.CommonUPOSExceptionCreator.createJposException(CommonUPOSExceptionCreator.java:138) ~[epsonjpos.jar!/:na]
printer-service-1 | at jp.co.epson.upos.core.v1_14_0001T1.pntr.CommonUPOSExceptionCreator.createJposException(CommonUPOSExceptionCreator.java:99) ~[epsonjpos.jar!/:na]
printer-service-1 | at jp.co.epson.upos.core.v1_14_0001T1.pntr.CommonPrinterService.openPort(CommonPrinterService.java:3409) ~[epsonjpos.jar!/:na]
printer-service-1 | at jp.co.epson.upos.core.v1_14_0001T1.pntr.CommonPrinterService.claim(CommonPrinterService.java:3189) ~[epsonjpos.jar!/:na]
printer-service-1 | at jpos.BaseJposControl.claim(Unknown Source) ~[jpos1141.jar!/:na]
printer-service-1 | at com.gdma.printer.service.PrinterService.printMessage(PrinterService.java:37) ~[classes!/:na]
printer-service-1 | at com.gdma.printer.controller.PrinterController.printMessage(PrinterController.java:22) ~[classes!/:na]
printer-service-1 | at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
printer-service-1 | at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
printer-service-1 | at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
printer-service-1 | at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
printer-service-1 | at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1072) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:965) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at javax.servlet.http.HttpServlet.service(HttpServlet.java:555) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.31.jar!/:5.3.31]
printer-service-1 | at javax.servlet.http.HttpServlet.service(HttpServlet.java:623) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) ~[tomcat-embed-websocket-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.31.jar!/:5.3.31]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:481) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:390) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:928) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1794) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.83.jar!/:na]
printer-service-1 | at java.base/java.lang.Thread.run(Thread.java:840) ~[na:na]
printer-service-1 |

Так что я предполагаю, что этот ptr.open ("wifi"); работает, поэтому мой принтер виден для контейнера. Внутри контейнера я могу выполнять команду Telnet и распечатать кое -что на клавиатуре. Я думаю, что, возможно, проблема с некоторыми привилегиями. Это мой Docker Compose: < /p>
services:
printer-service:
hostname: printer-svc
image: image/image:printer-service
privileged: true
ports:
- "8082:8080"
logging:
driver: syslog


Подробнее здесь: https://stackoverflow.com/questions/787 ... -container