【WebService异常分析】

1. Axis1.x框架的WebService

1.1 在生成server-config.wsdd时报错

• 命令：java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClient deploy.wsdd

• 报错内容：

  D:Tomcatapache-tomcat-6.0.43webappsDemoWebServiceWEB-INF>java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClien
  t deploy.wsdd
  Processing file deploy.wsdd
  Exception: AxisFault
  faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
  faultSubcode:
  faultString: java.net.ConnectException: Connection refused: connect
  faultActor:
  faultNode:
  faultDetail:
  {http://xml.apache.org/axis/}stackTrace:java.net.ConnectException: Connection refused: connect
  at java.net.PlainSocketImpl.socketConnect(Native Method)
  at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
  at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
  at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
  at java.net.Socket.connect(Socket.java:529)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at org.apache.axis.components.net.DefaultSocketFactory.create(DefaultSocketFactory.java:153)
  at org.apache.axis.components.net.DefaultSocketFactory.create(DefaultSocketFactory.java:120)
  at org.apache.axis.transport.http.HTTPSender.getSocket(HTTPSender.java:191)
  at org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:404)
  at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
  at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
  at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
  at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
  at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
  at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
  at org.apache.axis.client.Call.invoke(Call.java:2767)
  at org.apache.axis.client.Call.invoke(Call.java:1792)
  at org.apache.axis.client.AdminClient.process(AdminClient.java:439)
  at org.apache.axis.client.AdminClient.process(AdminClient.java:404)
  at org.apache.axis.client.AdminClient.process(AdminClient.java:410)
  at org.apache.axis.client.AdminClient.process(AdminClient.java:320)
  at org.apache.axis.client.AdminClient.main(AdminClient.java:463)
  {http://xml.apache.org/axis/}hostname:1MLVINUF6M8NOUS
  }}}

• 如我的deploy.wsdd文件如下：

  <?xml version="1.0" encoding="UTF-8"?>
  <deployment xmlns="http://xml.apache.org/axis/wsdd/" xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
      <service name="HelloWorldWSDD" provider="java:RPC">
          <parameter name="className" value="cn.hw.ws.HelloWorldWSDD" />
          <!-- 代表所有的方法都暴露 -->
          <parameter name="allowedMethods" value="*" />
          <parameter name="scope" value="request" />
      </service>
  </deployment>

• 解决办法
  dos命令到WEB-INF下，命令改为：java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClient -l http://localhost:8181/axis/services/HelloWorldWSDD deploy.wsdd

• 参考文档： webservice Axis发布deploy.wsdd出错， {http://xml.apache.org/axis/}stackTrace:java.net.ConnectException: Coction refused: connect

1.2 将不带报名的类HelloWorldService放到tomcat的axis工程中，在浏览器中访问，点击Click to see the WSDL 报错

• 报错内容

AXIS error
Sorry,something seems to have gone wrong… here are the details:

Fault - Failed to determine deployed service names.; nested exception is:
org.apache.axis.ConfigurationException: Could not find class for the service named: cn.hw.ws.HelloWorldWSDD
Hint: you may need to copy your class files/tree into the right location (which depends on the servlet system you are using).; nested exception is:
java.lang.ClassNotFoundException: cn.hw.ws.HelloWorldWSDD
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException
faultSubcode:
faultString: Could not find class for the service named: cn.hw.ws.HelloWorldWSDD
Hint: you may need to copy your class files/tree into the right location (which depends on the servlet system you are using).; nested exception is:
java.lang.ClassNotFoundException: cn.hw.ws.HelloWorldWSDD
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}hostname:1MLVINUF6M8NOUS

Could not find class for the service named: cn.hw.ws.HelloWorldWSDD
Hint: you may need to copy your class files/tree into the right location (which depends on the servlet system you are using).; nested exception is:
java.lang.ClassNotFoundException: cn.hw.ws.HelloWorldWSDD
at org.apache.axis.providers.java.JavaProvider.getServiceClass(JavaProvider.java:432)
at org.apache.axis.providers.java.JavaProvider.initServiceDesc(JavaProvider.java:461)
……

• 原因分析
  在tomcat中的axis工程原来部署过HelloWorldWSDD类，虽然该类在tomcat中删除了，但是其发布用的配置文件“server-config.wsdd”还在tomcat中。删除该文件，然后重启tomcat，在tomcat重启的过程中会报出”Unable to find config file. Creating new servlet engine config file: /WEB-INF/server-config.wsdd“，应该是tomcat的某个文件中有记录，所以重启时会显示该记录，但是并不影响其他类HelloWorldService的发布。

1.3 Dos进行webService发布时报错

• 报错内容

D:Tomcatapache-tomcat-6.0.43webappsDemoWebServiceWEB-INF>java -cp %AXISCLASSPATH% org.apache.axis.client.AdminClien
t -l http://localhost:8181/DemoWebService/services/AdminService deployComplex.wsdd
Processing file deployComplex.wsdd
- Exception:
org.xml.sax.SAXException: Fatal Error: URI=null Line=2: Element type “deployment” must be followed by either attribute s
pecifications,“>” or “/>”.
at org.apache.axis.utils.XMLUtils ParserErrorHandler.fatalError(XMLUtils.java:723)atcom.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)atcom.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:388)atcom.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1414)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.seekCloseOfStartTag(XMLDocumentFragmentScannerImpl.java:1395)atcom.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:285)atcom.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl NSContentDriver.scanRootElementHook(XMLNSDoc
umentScannerImpl.java:626)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3104)atcom.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl PrologDriver.next(XMLDocumentScannerImpl.java:
922)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScanne
rImpl.java:511)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:235)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:284)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:369)
at org.apache.axis.utils.XMLUtils.newDocument(XMLUtils.java:388)
at org.apache.axis.message.SOAPBodyElement.getDocumentElement(SOAPBodyElement.java:90)
at org.apache.axis.message.SOAPBodyElement.(SOAPBodyElement.java:79)
at org.apache.axis.client.AdminClient.process(AdminClient.java:438)
at org.apache.axis.client.AdminClient.process(AdminClient.java:404)
at org.apache.axis.client.AdminClient.process(AdminClient.java:410)
at org.apache.axis.client.AdminClient.process(AdminClient.java:320)
at org.apache.axis.client.AdminClient.main(AdminClient.java:463)
Exception: org.xml.sax.SAXException: Fatal Error: URI=null Line=2: Element type “deployment” must be followed by either
attribute specifications,“>” or “/>。.

• 错误原因分析
  我在编写deployComplex.wsdd时，里面含有中文注释。将该中文注释删除，然后重新发布即可。可以将deployComplex.wsdd中的encoding=”UTF-8”改为encoding=”gbk”。

• 参考文档：Invalid byte 2 of 2-byte UTF-8 sequence解决方案

1.3 WebService发布成功，客户端执行报Connection refused异常

• 报错内容

  Exception in thread “main” AxisFault
  faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
  faultSubcode:
  faultString: java.net.ConnectException: Connection refused: connect
  faultActor:
  faultNode:
  faultDetail:
  {http://xml.apache.org/axis/}stackTrace:java.net.ConnectException: Connection refused: connect
  at java.net.PlainSocketImpl.socketConnect(Native Method)
  at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
  at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
  at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
  at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
  at java.net.Socket.connect(Socket.java:529)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at org.apache.axis.components.net.DefaultSocketFactory.create(DefaultSocketFactory.java:153)
  at org.apache.axis.components.net.DefaultSocketFactory.create(DefaultSocketFactory.java:120)
  at org.apache.axis.transport.http.HTTPSender.getSocket(HTTPSender.java:191)
  at org.apache.axis.transport.http.HTTPSender.writeToSocket(HTTPSender.java:404)
  at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:138)
  at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
  at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
  at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
  at org.apache.axis.client.AxisClient.invoke(AxisClient.java:165)
  at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
  at org.apache.axis.client.Call.invoke(Call.java:2767)
  at org.apache.axis.client.Call.invoke(Call.java:2443)
  at org.apache.axis.client.Call.invoke(Call.java:2366)
  at org.apache.axis.client.Call.invoke(Call.java:1812)
  at cn.hw.ws.client.UploadFileClient.main(UploadFileClient.java:51)
  {http://xml.apache.org/axis/}hostname:1MLVINUF6M8NOUS

• 原因分析
  客户端代码中url地址错误，如下面代码中的url与发布的服务地址不符合

  String url = "http://localhost:8080/AxisWebService/services/UploadFile";
  Service service = new Service();
  Call call = (Call) service.createCall();
  call.setTargetEndpointAddress(url);