Question

我已经创建了一个转换为Web服务的方法，如下所示：

@WebMethod(operationName = "doCanny")
public void doCanny()
{
    try 
    {
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
    Mat color = Imgcodecs.imread("C:\\Users\\bheda\\Desktop\\Cat03.jpg");


    Mat gray = new Mat();
    Mat draw = new Mat();
    Mat wide = new Mat();

    Imgproc.cvtColor(color, gray, Imgproc.COLOR_BGR2GRAY);
    Imgproc.Canny(gray, wide, 50, 150, 3, false);
    wide.convertTo(draw, CvType.CV_8U);

    if(Imgcodecs.imwrite("C:\\Users\\bheda\\Desktop\\Cat03.jpg", draw))
    {
        System.out.println("edge is detected .......");
    }
    }
    catch(Exception e)
    {

    }
}

当我部署并测试此Web服务时，我收到以下错误：

WS00041：服务调用引发了一个异常，消息为：null; 有关更多详细信息，请参阅服务器日志。例外详细信息： java.lang.reflect.InvocationTargetException javax.servlet.ServletException： java.lang.reflect.InvocationTargetException at org.glassfish.webservices.monitoring.WebServiceTesterServlet.doPost（WebServiceTesterServlet.java:342）在 org.glassfish.webservices.monitoring.WebServiceTesterServlet.invoke（WebServiceTesterServlet.java:106）在 org.glassfish.webservices.JAXWSServlet.doPost（JAXWSServlet.java:157）在javax.servlet.http.HttpServlet.service（HttpServlet.java:707）at javax.servlet.http.HttpServlet.service（HttpServlet.java:790）at at org.apache.catalina.core.StandardWrapper.service（StandardWrapper.java:1682）在 org.apache.catalina.core.StandardWrapperValve.invoke（StandardWrapperValve.java:318）在 org.apache.catalina.core.StandardContextValve.invoke（StandardContextValve.java:160）在 org.apache.catalina.core.StandardPipeline.doInvoke（StandardPipeline.java:734）在 org.apache.catalina.core.StandardPipeline.invoke（StandardPipeline.java:673）在com.sun.enterprise.web.WebPipeline.invoke（WebPipeline.java:99）at org.apache.catalina.core.StandardHostValve.invoke（StandardHostValve.java:174）在 org.apache.catalina.connector.CoyoteAdapter.doService（CoyoteAdapter.java:415）在 org.apache.catalina.connector.CoyoteAdapter.service（CoyoteAdapter.java:282）在 com.sun.enterprise.v3.services.impl.ContainerMapper $ HttpHandlerCallable.call（ContainerMapper.java:459）在 com.sun.enterprise.v3.services.impl.ContainerMapper.service（ContainerMapper.java:167）在 org.glassfish.grizzly.http.server.HttpHandler.runService（HttpHandler.java:201）在 org.glassfish.grizzly.http.server.HttpHandler.doHandle（HttpHandler.java:175）在 org.glassfish.grizzly.http.server.HttpServerFilter.handleRead（HttpServerFilter.java:235）在 org.glassfish.grizzly.filterchain.ExecutorResolver $ 9.execute（ExecutorResolver.java:119）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter（DefaultFilterChain.java:284）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart（DefaultFilterChain.java:201）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.execute（DefaultFilterChain.java:133）在 org.glassfish.grizzly.filterchain.DefaultFilterChain.process（DefaultFilterChain.java:112）在 org.glassfish.grizzly.ProcessorExecutor.execute（ProcessorExecutor.java:77）在 org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent（TCPNIOTransport.java:561）在 org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent（AbstractIOStrategy.java:112）在 org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0（WorkerThreadIOStrategy.java:117）在 org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access $ 100（WorkerThreadIOStrategy.java:56）在 org.glassfish.grizzly.strategies.WorkerThreadIOStrategy $ WorkerThreadRunnable.run（WorkerThreadIOStrategy.java:137）在 org.glassfish.grizzly.threadpool.AbstractThreadPool $ Worker.doWork（AbstractThreadPool.java:565）在 org.glassfish.grizzly.threadpool.AbstractThreadPool $ Worker.run（AbstractThreadPool.java:545）在java.lang.Thread.run（Thread.java:748）引起： java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0（Native Method）at sun.reflect.NativeMethodAccessorImpl.invoke（NativeMethodAccessorImpl.java:62）在 sun.reflect.DelegatingMethodAccessorImpl.invoke（DelegatingMethodAccessorImpl.java:43）在java.lang.reflect.Method.invoke（Method.java:498）at org.glassfish.webservices.monitoring.WebServiceTesterServlet.doPost（WebServiceTesterServlet.java:313） ... 32更多引起：com.sun.xml.ws.fault.ServerSOAPFaultException：客户端从服务器收到SOAP Fault：没有opencv_java340 in java.library.path请参阅服务器日志以查找更多详细信息关于失败的确切原因。在 com.sun.xml.ws.fault.SOAP11Fault.getProtocolException（SOAP11Fault.java:193）在 com.sun.xml.ws.fault.SOAPFaultBuilder.createException（SOAPFaultBuilder.java:131）在 com.sun.xml.ws.client.sei.StubHandler.readResponse（StubHandler.java:253）在 com.sun.xml.ws.db.DatabindingImpl.deserializeResponse（DatabindingImpl.java:203）在 com.sun.xml.ws.db.DatabindingImpl.deserializeResponse（DatabindingImpl.java:290）在 com.sun.xml.ws.client.sei.SyncMethodHandler.invoke（SyncMethodHandler.java:119）在 com.sun.xml.ws.client.sei.SyncMethodHandler.invoke（SyncMethodHandler.java:92）在com.sun.xml.ws.client.sei.SEIStub.invoke（SEIStub.java:161）at com.sun.proxy。$ Proxy313.doCanny（未知来源）... 37更多

我不确定我做错了什么。我认为这可能是我的文件路径，但我不确定。

Answer 1

no opencv_java340 in java.library.path

是什么引起了错误。 Core.NATIVE_LIBRARY_NAME指向OpenCV本机库（Windows上的DLL文件，Linux上的文件）。启动Glassfish时，必须添加环境变量LD_LIBRARY_PATH并将其设置为OpenCV安装的路径。

尝试创建Web服务

1 个答案: