SOAPHandler JAX-WS WebService 中的 MessageContext

Question

我有一个 JAX-WS 2.2 WebService，我必须获取与之通信的每个客户端的 IP 地址。我编写了一个 SOAP 协议处理程序，但我看不到地址，因为处理程序不包含此信息，并且使用 mimeheaders 我也看不到此信息。我的处理程序的代码如下：

public class AddressHandler implements SOAPHandler<SOAPMessageContext> {

private void takeIPAddress(SOAPMessageContext context) {

    try {
        SOAPMessage original = context.getMessage();
        MimeHeaders mimeheaders = original.getMimeHeaders();
        MimeHeader mimeheader = null;

        Iterator<?> iter = mimeheaders.getAllHeaders();

        for (; iter.hasNext();) {
            mimeheader = (MimeHeader) iter.next();

            System.out.println("name=" + mimeheader.getName() + ", value="
                    + mimeheader.getValue());
        }


     } catch (Exception e) {
         e.printStackTrace();
     }


}

@Override
public void close(MessageContext arg0) {
    // TODO Auto-generated method stub

}

@Override
public boolean handleFault(SOAPMessageContext arg0) {
    // TODO Auto-generated method stub
    return false;
}

@Override
public boolean handleMessage(SOAPMessageContext context) {
    takeIPAddress(context);
    return true;
}

@Override
public Set<QName> getHeaders() {
    // TODO Auto-generated method stub
    return null;
}
}

现在我发现可以使用以下代码查看地址：

SOAPMessageContext jaxwsContext = (SOAPMessageContext)wsContext.getMessageContext();
HttpServletRequest request = HttpServletRequest)jaxwsContext.get(SOAPMessageContext.SERVLET_REQUEST);
String ipAddress = request.getRemoteAddr();

但我无法正确导入 HttpServletRequest 类。你有什么想法吗？

更新

感谢 A Nyar Thar，我发现存在另一种获取地址的方法，我已经在我的代码中实现了这一点，现在是：

private void takeIPAddress(SOAPMessageContext context) {

    HttpExchange exchange = (HttpExchange)context.get("com.sun.xml.ws.http.exchange");
    InetSocketAddress remoteAddress = exchange.getRemoteAddress();
    String remoteHost = remoteAddress.getHostName();

    System.out.println(remoteHost);     

}

但是代码执行会产生这个错误（第 39 行是我做 exchange.getRemoteAddress() 的地方）：

java.lang.NullPointerException
at server.AddressHandler.takeIPAddress(AddressHandler.java:39)
at server.AddressHandler.handleMessage(AddressHandler.java:80)
at server.AddressHandler.handleMessage(AddressHandler.java:1)
at com.sun.xml.internal.ws.handler.HandlerProcessor.callHandleMessage(HandlerProcessor.java:282)
at com.sun.xml.internal.ws.handler.HandlerProcessor.callHandlersRequest(HandlerProcessor.java:125)
at com.sun.xml.internal.ws.handler.ServerSOAPHandlerTube.callHandlersOnRequest(ServerSOAPHandlerTube.java:123)
at com.sun.xml.internal.ws.handler.HandlerTube.processRequest(HandlerTube.java:105)
at com.sun.xml.internal.ws.api.pipe.Fiber.__doRun(Fiber.java:626)
at com.sun.xml.internal.ws.api.pipe.Fiber._doRun(Fiber.java:585)
at com.sun.xml.internal.ws.api.pipe.Fiber.doRun(Fiber.java:570)
at com.sun.xml.internal.ws.api.pipe.Fiber.runSync(Fiber.java:467)
at com.sun.xml.internal.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:299)
at com.sun.xml.internal.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:593)
at com.sun.xml.internal.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:244)
at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handleExchange(WSHttpHandler.java:95)
at com.sun.xml.internal.ws.transport.http.server.WSHttpHandler.handle(WSHttpHandler.java:80)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:77)
at sun.net.httpserver.AuthFilter.doFilter(AuthFilter.java:83)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:80)
at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(ServerImpl.java:677)
at com.sun.net.httpserver.Filter$Chain.doFilter(Filter.java:77)
at sun.net.httpserver.ServerImpl$Exchange.run(ServerImpl.java:649)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)

我认为真正的问题是我不知道如何从我的类 AddressHandler 中获取 WebServiceContext。你有什么想法吗？

Answer 1

对于基于JAX-WS的webservice，你可以从javax.xml.ws.spi.http.HttpExchange访问远程主机信息，可以基于JAX-WS版本访问，

• JAX-WS 2.1

  SOAPMessageContext soapContext = (SOAPMessageContext)wsContext.getMessageContext();
  HttpExchange exchange = (HttpExchange)soapContext.get(JAXWSProperties.HTTP_EXCHANGE);
  

• JAX-WS 2.2

  SOAPMessageContext soapContext = (SOAPMessageContext)wsContext.getMessageContext();
  HttpExchange exchange = (HttpExchange)soapContext.get("com.sun.xml.ws.http.exchange");
  

请注意，wsContext.getMessageContext() 将返回 MessageContext。如果你想要它，不要像那样投到SOAPMessageContext，

MessageContext msgContext = wsContext.getMessageContext();

终于可以访问远程地址信息了，

InetSocketAddress remoteAddress = exchange.getRemoteAddress();
String remoteHost = remoteAddress.getHostName();