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How to serialize java.util.Hashtable element in JavaBean

1 reply on 1 page. Most recent reply: Dec 15, 2005 4:02 AM by Marin Tzvetkov

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Marin Tzvetkov

Posts: 3
Nickname: mtzvetkov
Registered: Dec, 2005

How to serialize java.util.Hashtable element in JavaBean

Posted: Dec 14, 2005 9:03 AM

Hello
I have the following problem. I just have a web service client, that invokes a method from a webservice. The method gets a JavaBeans class(TestClass) as a parameter. It has 2 elements a java.lang.String and java.util.Map. On invocation I am getting the Exception:

faultString: org.xml.sax.SAXException: No object was found for class type class java.util.Hashtable

Could smb please help me

I am pasting the rest from the exception, my wsdd, my service class, client class and the TestClass

=========================Exception==========================
AxisFau lt
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: org.xml.sax.SAXException: No object was found for class type class java.util.Hashtable
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}hostname:toshko

org.xml.sax.SAXException: No object was found for class type class java.util.Hashtable
at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationConte xt.java:1087)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Abstrac tSAXParser.java:633)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanEndElement (XMLNSDocumentScannerImpl.java:719)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$Fragment ContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1685)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocu ment(XMLDocumentFragmentScannerImpl.java:368)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Config uration.java:834)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Config uration.java:764)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXP arser.java:1242)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:375)
at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.ja va:227)
at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
at org.apache.axis.transport.http.HTTPSender.readFromSocket(HTTPSender.java:796)
at org.apache.axis.transport.http.HTTPSender.invoke(HTTPSender.java:144)
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 test.WS.TestServ.main(TestServ.java:55)
=========================Exception===== =====================

=======================The Client===========================
package test.WS;

import java.util.Hashtable;
import java.util.Map;

import javax.xml.namespace.QName;
import javax.xml.rpc.ParameterMode;

import org.apache.axis.client.Call;
import org.apache.axis.client.Service;
import org.apache.axis.encoding.ser.BeanDeserializerFactory;
import org.apache.axis.encoding.ser.BeanSerializerFactory;
import org.apache.axis.encoding.ser.MapDeserializerFactory;
import org.apache.axis.encoding.ser.MapSerializerFactory;

public class TestServ {

public static void main(String[] args) {

Hashtable m = new Hashtable();
m.put("arg1", "arg1 Obj");
m.put("arg2", "arg2 Obj");
m.put("arg3", "arg3 Obj");

TestClass tc = new TestClass(m, "hallo");

String endpoint = "http://localhost:8080/axis/services/TestService";
String method = "testMap";

Service service = new Service();
Call call = null;
try {

call = (Call) service.createCall();

call.setTargetEndpointAddress(new java.net.URL(endpoint));
call.setOperationName(method);

QName qn = new QName("UDDIProperties", "BusinessProperties");

QName qn2 = new QName("UDDIProperties", "BusinessMap");
call.addParameter("tc", qn, ParameterMode.IN);

call.registerTypeMapping(TestClass.class, qn,
new BeanSerializerFactory(TestClass.class, qn),
new BeanDeserializerFactory(TestClass.class, qn));
/*
call.registerTypeMapping(TestClass.class, qn2,
new MapSerializerFactory(Map.class, qn2),
new MapDeserializerFactory(Hashtable.class, qn2));
*/
Object res = call.invoke(new Object[] { tc });

System.out.println(res.toString());

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

}
=======================The Client End=======================

=======================The Service==========================
package tuberlin.sysedv.srvmngmt.client.webservices;

import java.util.Hashtable;

import test.WS.TestClass;

public class TestService {

public static String testMap (Object o) {

TestClass tc = (TestClass)o;
System.out.println ("Ausführen testMap");

return "Nachricht bekommen"+tc.getMap().size();
}

}
=======================The Service End=====================

=======================TestClass=====================
package test.WS;

import java.io.Serializable;
import java.util.Hashtable;

public class TestClass implements Serializable{

private String desc;

private Hashtable map;
public TestClass(Hashtable map, String desc) {
super();
// TODO Auto-generated constructor stub
this.map = map;
this.desc = desc;
}
public String getDesc() {
return desc;
}
public void setDesc(String desc) {
this.desc = desc;
}
public Hashtable getMap() {
return map;
}
public void setMap(Hashtable map) {
this.map = map;
}

}

=======================TestClass End=====================

=======================WSDD==========================
<deployment xmlns="http://xml.apache.org/axis/wsdd/"
xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
<service name="TestService" provider="java:RPC">
<requestFlow>
<handler type="soapmonitor"/>
</requestFlow>
<responseFlow>
<handler type="soapmonitor"/>
</responseFlow>
<parameter name="className" value="tuberlin.sysedv.srvmngmt.client.webservices.TestService"/>
<parameter name="allowedMethods" value="*"/>

<typeMapping
qname="ns:BusinessProperties"
xmlns:ns="UDDIProperties"
type = "java:test.WS.TestClass"
serializer="org.apache.axis.encoding.ser.BeanSerializerFactory"
deserializer="org.apache.axis.encoding.ser.BeanDeserializerFactory"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
/>

<typeMapping
qname="ns:BusinessMap"
xmlns:ns="UDDIProperties"
type = "java:java.util.Hashtable"
serializer="org.apache.axis.encoding.ser.MapSerializerFactory"
deserializer="org.apache.axis.encoding.ser.MapDeserializerFactory"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
/>

</service>
</deployment>
=======================WSDD END==========================

===================SOAP MONITOR - REQUEST==================
<?xml version="1.0" encoding="utf-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Body>
<testMap soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<tc href="#id0"/>
</testMap>
<multiRef id="id0" soapenc:root="0" soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xsi:type="ns1:BusinessProperties" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns1="UDDIProperties">
<desc xsi:type="soapenc:string">hallo</desc>
<map href="#id1"/>
</multiRef>
<multiRef id="id1" soapenc:root="0" soapenv:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xsi:type="ns2:Map" xmlns:ns2="http://xml.apache.org/xml-soap" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">
<item>
<key xsi:type="soapenc:string">arg3</key>
<value xsi:type="soapenc:string">arg3 Obj</value>
</item>
<item>
<key xsi:type="soapenc:string">arg2</key>
<value xsi:type="soapenc:string">arg2 Obj</value>
</item>
<item>
<key xsi:type="soapenc:string">arg1</key>
<value xsi:type="soapenc:string">arg1 Obj</value>
</item>
</multiRef>
</soapenv:Body>
</soapenv:Envelope>

===================NO RESPONCE============================

Marin Tzvetkov

Posts: 3
Nickname: mtzvetkov
Registered: Dec, 2005

Re: How to serialize java.util.Hashtable element in JavaBean

Posted: Dec 15, 2005 4:02 AM

I'm using Axis 1.3 and Java 1.5_5

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