出错信息如下：
HTTP Status 500 - Failed to access the WSDL at: http://xx.xx.xx.cn/flfw-fw/webservice/test?wsdl. It failed with:
type Exception report
message Failed to access the WSDL at: http://xx.xx.xx.cn/flfw-fw/webservice/test?wsdl. It failed with:
description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.xml.ws.WebServiceException: Failed to access the WSDL at: http://xx.xx.xx.cn/flfw-fw/webservice/test?wsdl. It failed with:
Got xx.xx.xx.cn while opening stream from http://xx.xx.xx.cn/flfw-fw/webservice/test?wsdl.
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.tryWithMex(RuntimeWSDLParser.java:173)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:155)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:120)
com.sun.xml.internal.ws.client.WSServiceDelegate.parseWSDL(WSServiceDelegate.java:258)
com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(WSServiceDelegate.java:221)
com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(WSServiceDelegate.java:169)
com.sun.xml.internal.ws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:101)
javax.xml.ws.Service.<init>(Service.java:77)
javax.xml.ws.Service.create(Service.java:707)
gz.doGet(gz.java:54)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
java.io.IOException: Got xx.xx.xx.cn while opening stream from http://xx.xx.xx.cn/flfw-fw/webservice/test?wsdl
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.createReader(RuntimeWSDLParser.java:842)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.resolveWSDL(RuntimeWSDLParser.java:283)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:140)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:120)
com.sun.xml.internal.ws.client.WSServiceDelegate.parseWSDL(WSServiceDelegate.java:258)
com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(WSServiceDelegate.java:221)
com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(WSServiceDelegate.java:169)
com.sun.xml.internal.ws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:101)
javax.xml.ws.Service.<init>(Service.java:77)
javax.xml.ws.Service.create(Service.java:707)
gz.doGet(gz.java:54)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause
java.net.UnknownHostException: xx.xx.xx.cn
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
java.net.Socket.connect(Socket.java:579)
java.net.Socket.connect(Socket.java:528)
sun.net.NetworkClient.doConnect(NetworkClient.java:180)
sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
sun.net.www.http.HttpClient.New(HttpClient.java:308)
sun.net.www.http.HttpClient.New(HttpClient.java:326)
sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:997)
sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933)
sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:851)
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1301)
java.net.URL.openStream(URL.java:1037)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.createReader(RuntimeWSDLParser.java:827)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.resolveWSDL(RuntimeWSDLParser.java:283)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:140)
com.sun.xml.internal.ws.wsdl.parser.RuntimeWSDLParser.parse(RuntimeWSDLParser.java:120)
com.sun.xml.internal.ws.client.WSServiceDelegate.parseWSDL(WSServiceDelegate.java:258)
com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(WSServiceDelegate.java:221)
com.sun.xml.internal.ws.client.WSServiceDelegate.<init>(WSServiceDelegate.java:169)
com.sun.xml.internal.ws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:101)
javax.xml.ws.Service.<init>(Service.java:77)
javax.xml.ws.Service.create(Service.java:707)
gz.doGet(gz.java:54)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.84 logs.
请问 问题出在哪里？？
