我们正在尝试从JExplorer迁移到JXBrowser。 我们在网页上下文中注入了javascript函数。该函数依次调用Web服务，并对结果进行一些处理。
webservice调用本身可以正常工作，但是在被JXBrowser调用时失败。相同的代码在JExplorer上运行良好。 我们正在使用jaxws-rt（Metro）作为我们的SOAP库（我们自己提供的版本，而不是JDK捆绑的版本）。
这是SSCCE：
Main.java
public class Main {
public static void main(String[] args) {
System.out.println("calling service from main");
callService();
Browser browser = new Browser();
BrowserView view = new BrowserView(browser);
JFrame frame = new JFrame("JxBrowser - Hello World");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.add(view, BorderLayout.CENTER);
frame.setSize(500, 400);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
browser.addScriptContextListener(new ScriptContextAdapter() {
@Override
public void onScriptContextCreated(ScriptContextEvent event) {
Browser browser = event.getBrowser();
JSValue window = browser.executeJavaScriptAndReturnValue("window");
window.asObject().setProperty("call", (JSFunctionCallback) args -> callService());
}
});
System.out.println("calling service from web page");
browser.loadHTML("<html><head></head><body onload='call()'><h1>Hello World!</h1></body></html>");
}
private static Object callService() {
System.out.println("entering callService()");
Object result = null;
try {
URL wsdlSource = new URL("http://www.dneonline.com/calculator.asmx?WSDL");
QName serviceName = new QName("http://tempuri.org/", "Calculator");
ServiceDelegate delegate = com.sun.xml.ws.spi.ProviderImpl.INSTANCE.createServiceDelegate(wsdlSource, serviceName, Service.class);
CalculatorSoap port = delegate.getPort(CalculatorSoap.class);
result = port.add(2, 3);
System.out.println("result: " + result);
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
}
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.sscce</groupId>
<artifactId>sscce</artifactId>
<version>1.0.0</version>
<properties>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.source>1.8</maven.compiler.source>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>jaxws-maven-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>wsimport</id>
<goals>
<goal>wsimport</goal>
</goals>
</execution>
</executions>
<configuration>
<wsdlUrls>
<wsdlUrl>http://www.dneonline.com/calculator.asmx?WSDL</wsdlUrl>
</wsdlUrls>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>com.sun.xml.ws</groupId>
<artifactId>jaxws-rt</artifactId>
<version>2.2.10</version>
</dependency>
<dependency>
<groupId>com.teamdev.jxbrowser</groupId>
<artifactId>jxbrowser-win32</artifactId>
<version>6.22</version>
</dependency>
<dependency>
<groupId>com.teamdev.jxbrowser</groupId>
<artifactId>jxbrowser-license</artifactId>
<version>6.0</version>
</dependency>
</dependencies>
</project>
程序将打印以下内容：
calling service from main
entering callService()
result: 5
calling service from web page
entering callService()
janv. 15, 2019 3:19:53 PM com.sun.xml.ws.spi.db.BindingContextFactory$1 hasNext
WARNING: skipping factory: ServiceConfigurationError: com.sun.xml.ws.spi.db.BindingContextFactory: Provider com.sun.xml.ws.db.glassfish.JAXBRIContextFactory is specified in jar:file:/C:/Users/xxx/.m2/repository/com/sun/xml/ws/jaxws-rt/2.2.10/jaxws-rt-2.2.10.jar!/META-INF/services/com.sun.xml.ws.spi.db.BindingContextFactory but not found
janv. 15, 2019 3:19:53 PM [com.sun.xml.ws.assembler.MetroConfigLoader] init
WARNING: MASM0010: Unable to unmarshall metro config file from location [ jar:file:/C:/Users/xxx/.m2/repository/com/sun/xml/ws/jaxws-rt/2.2.10/jaxws-rt-2.2.10.jar!/META-INF/jaxws-tubes-default.xml ]
java.lang.NullPointerException
at javax.xml.bind.ContextFinder.find(ContextFinder.java:326)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:431)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:394)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:298)
at com.sun.xml.ws.assembler.MetroConfigLoader.createJAXBContext(MetroConfigLoader.java:280)
at com.sun.xml.ws.assembler.MetroConfigLoader.loadMetroConfig(MetroConfigLoader.java:256)
at com.sun.xml.ws.assembler.MetroConfigLoader.init(MetroConfigLoader.java:146)
at com.sun.xml.ws.assembler.MetroConfigLoader.<init>(MetroConfigLoader.java:119)
at com.sun.xml.ws.assembler.TubelineAssemblyController.getTubeCreators(TubelineAssemblyController.java:93)
at com.sun.xml.ws.assembler.MetroTubelineAssembler.createClient(MetroTubelineAssembler.java:118)
at com.sun.xml.ws.client.Stub.createPipeline(Stub.java:343)
at com.sun.xml.ws.client.Stub.<init>(Stub.java:310)
at com.sun.xml.ws.client.Stub.<init>(Stub.java:243)
at com.sun.xml.ws.client.Stub.<init>(Stub.java:258)
at com.sun.xml.ws.client.sei.SEIStub.<init>(SEIStub.java:98)
at com.sun.xml.ws.client.WSServiceDelegate.getStubHandler(WSServiceDelegate.java:829)
at com.sun.xml.ws.client.WSServiceDelegate.createEndpointIFBaseProxy(WSServiceDelegate.java:818)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:451)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:419)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:474)
at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:478)
at sscce.Main.callService(Main.java:57)
at sscce.Main.access$0(Main.java:50)
at sscce.Main$1.lambda$0(Main.java:42)
at com.teamdev.jxbrowser.chromium.JSContext.a(SourceFile:1613)
at com.teamdev.jxbrowser.chromium.JSContext$a.onMessageReceived(SourceFile:666)
at com.teamdev.jxbrowser.chromium.internal.ipc.q.a(SourceFile:1084)
at com.teamdev.jxbrowser.chromium.internal.ipc.r.run(SourceFile:68)
at com.teamdev.jxbrowser.chromium.internal.r.run(SourceFile:79)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
有什么想法吗？
谢谢！
答案 0 :(得分：1)
我联系了JXBrowser支持团队。他们建议使用https://jxbrowser.support.teamdev.com/support/discussions/topics/9000044535所述的jxbrowser.threads.configureContextClassLoader系统属性。
将其设置为true可解决此问题。