| 关于axis2中对soapfault的处理的一个小bug |
| gjs0064114 更新：2006-04-27 21:56:07 $version | |
由于项目的需要，需要axis2的客户端能够对服务端返回的soap fault 进行处理。但在实际中发现axis2对soapfault处理中有问题
首先，(1)明确一下axis2 engine 接收到的soapfault 消息的格式：
HTTP/1.1 500 Internal Server Error
Server: gSOAP/2.7
Content-Type: text/xml; charset=utf-8
Content-Length: 1916
Connection: close
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-
<SOAP-ENV:Body>
<SOAP-ENV:Fault>
<faultcode>SOAP-ENV:Server</faultcode>
<faultstring>The value of structure ns2__Register is NULL</faultstring>
<detail>
<a:egoerror xmlns:a="http://www.ego.com/" >
<a:a>error String</a:a>
<a:b>error code </a:b>
</a:egoerror>
</detail>
</SOAP-ENV:Fault>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
(2）在axis2将soapfault消息封装到axisfault的代码如下：
org.apache.axis2.clientapi.OutMEPClient.java
.....
public MessageContext invokeBlocking(OperationDescription axisop,
final MessageContext msgctx)
throws AxisFault {
prepareInvocation(axisop, msgctx);
// The message ID is sent all the time
String messageID = String.valueOf(System.currentTimeMillis());
msgctx.setMessageID(messageID);
//
if (useSeparateListener) {
//This mean doing a Request-Response invocation using two channel. If the
//transport is two way transport (e.g. http) Only one channel is used (e.g. in http cases
//202 OK is sent to say no repsone avalible). Axis2 get blocked return when the response is avalible.
SyncCallBack callback = new SyncCallBack();
//this method call two channel non blocking method to do the work and wait on the callbck
invokeNonBlocking(axisop, msgctx, callback);
long index = timeOutInMilliSeconds / 100;
while (!callback.isComplete()) {
//wait till the reponse arrives
if (index-- >= 0) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
throw new AxisFault(e);
}
} else {
throw new AxisFault(Messages.getMessage("responseTimeOut"));
}
}
//process the resule of the invocation
if (callback.envelope != null) {
MessageContext resMsgctx =
new MessageContext(serviceContext.getEngineContext());
resMsgctx.setEnvelope(callback.envelope);
return resMsgctx;
} else {
if (callback.error instanceof AxisFault) {
throw (AxisFault) callback.error;
} else {
throw new AxisFault(callback.error);
}
}
} else {
//This is the Usual Request-Response Sync implemetation
msgctx.setTo(to);
msgctx.setServiceContext(serviceContext);
ConfigurationContext syscontext = serviceContext.getEngineContext();
msgctx.setConfigurationContext(syscontext);
checkTransport(msgctx);
//find and set the Operation Context
ConfigurationContext sysContext = serviceContext.getEngineContext();
AxisConfiguration registry = sysContext.getAxisConfiguration();
msgctx.setOperationContext(OperationContextFactory.createOperationContext(WSDLConstants.MEP_CONSTANT_IN_OUT,
axisop,
serviceContext));
//Send the SOAP Message and receive a response
MessageContext response =
TwoWayTransportBasedSender.send(msgctx, listenerTransport);
//check for a fault and return the result
SOAPEnvelope resenvelope = response.getEnvelope();
if (resenvelope.getBody().hasFault()) {
SOAPFault soapFault = resenvelope.getBody().getFault();
Exception ex = soapFault.getException();
if (isExceptionToBeThrownOnSOAPFault) {
//does the SOAPFault has a detail element for Excpetion
if (ex != null) {
throw new AxisFault(ex);
} else {
//if detail element not present create a new Exception from the detail
String message = "";
message = message + "Code =" + soapFault.getCode()==null?"":
soapFault.getCode().getValue()==null?"":soapFault.getCode().getValue().getText();
message = message + "Reason =" + soapFault.getReason()==null?"":
soapFault.getReason().getSOAPText()==null?"":soapFault.getReason().getSOAPText().getText(); System.out.println("message "+message);
throw new AxisFault(message);
}
}
}
return response;
}
}
.....
应改为
message = message + "Code =" + (soapFault.getCode()==null?"":
soapFault.getCode().getValue()==null?"":soapFault.getCode().getValue().getText());
System.out.println(""+message);
Iterator t= soapFault.getDetail().getAllDetailEntries();
loop(t,1);
org.apache.axis2.soap.impl.llom.SOAPFaultDetailImpl a;
message = message + "Reason =" + (soapFault.getReason()==null?"":
soapFault.getReason().getSOAPText()==null?"":soapFault.getReason().getSOAPText().getText());
这段代码只是对<faultcode><faultstring>进行了处理
而对于<detail>并未处理
3）可以自行对代码修改处理<detail>部分。
public void loop(Iterator t,int i ){
OMElementImpl omE;
OMTextImpl omT;
Object tx;
char [] sapace1=new char[i];
String sapace=new String(sapace1);
OMChildrenIterator tor=(OMChildrenIterator)t;
while ( t.hasNext()){
tx= t.next();
System.out.println(sapace+tx.getClass().getName());
if(tx instanceof OMElementImpl){
omE=(OMElementImpl)tx;
System.out.println(sapace+omE.getText());
loop(omE.getChildren() ,i+1);
}else if(tx instanceof OMTextImpl)
{ omT=(OMTextImpl)tx;
System.out.println(sapace+omT.getText());
}else{
System.out.println(sapace+"other type");
}
}
}
并在一下处调用该函数
if (ex != null) {
throw new AxisFault(ex);
} else {
//if detail element not present create a new Exception from the detail
String message = "";
message = message + "Code =" + (soapFault.getCode()==null?"":
soapFault.getCode().getValue()==null?"":soapFault.getCode().getValue().getText());
System.out.println(""+message);
Iterator t= soapFault.getDetail().getAllDetailEntries();
loop(t,1);
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