Bonjour,

Problème courant peut être mais ça fait trop de temps que je m'arrache les cheveux !

J'ai des objets Java à sérialiser/désérialiser mais je ne peux pas modifier la classe de l'objet.

Solution 1

La sérialisation :
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XMLEncoder encoder = new XMLEncoder(new FileOutputStream("test.xml"));
try {
	encoder.writeObject(obj2Xml);
	encoder.flush();
}
finally {
	encoder.close();
}
Problème : La classe n'est pas formée comme un JavaBean... donc il me manque du détail !

Solution 2

Voici la sérialisation :
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XStream xstream = new XStream(new DomDriver());
String xml = xstream.toXML(obj2Xml);

Résultat de la sérialisation :
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<com.pack.webservice.common.MaClasse>
  <__value>ValeurDeTest</__value>
  <type>String</type>
  <____hashCodeCalc>false</____hashCodeCalc>
</com.pack.webservice.common.MaClasse>

Et la désérialisation :
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MaClasse xml2Obj = (MaClasse) xstream.fromXML(xml);
Mais lors de la désérialisation, j'obtiens cette erreur :
Citation Envoyé par Erreur
Exception in thread "main" com.thoughtworks.xstream.converters.ConversionException: __hashCodeCalc : __hashCodeCalc
---- Debugging information ----
message : __hashCodeCalc : __hashCodeCalc
path : /com.pack.webservice.common.MaClasse/__hashCodeCalc
cause-message : __hashCodeCalc : __hashCodeCalc
class : com.pack.webservice.common.MaClasse
cause-exception : com.thoughtworks.xstream.mapper.CannotResolveClassException
required-type : com.pack.webservice.common.MaClasse
-------------------------------
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:63)
at com.thoughtworks.xstream.core.AbstractReferenceUnmarshaller.convert(AbstractReferenceUnmarshaller.java:45)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convertAnother(TreeUnmarshaller.java:46)
at com.thoughtworks.xstream.core.TreeUnmarshaller.start(TreeUnmarshaller.java:117)
at com.thoughtworks.xstream.core.ReferenceByXPathMarshallingStrategy.unmarshal(ReferenceByXPathMarshallingStrategy.java:29)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:826)
at com.thoughtworks.xstream.XStream.unmarshal(XStream.java:813)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:761)
at com.thoughtworks.xstream.XStream.fromXML(XStream.java:753)
at TestClient.main(TestClient.java:133)
Caused by: com.thoughtworks.xstream.mapper.CannotResolveClassException: __hashCodeCalc : __hashCodeCalc
at com.thoughtworks.xstream.mapper.DefaultMapper.realClass(DefaultMapper.java:49)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.XStream11XmlFriendlyMapper.realClass(XStream11XmlFriendlyMapper.java:23)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.ClassAliasingMapper.realClass(ClassAliasingMapper.java:72)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.DynamicProxyMapper.realClass(DynamicProxyMapper.java:60)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.ArrayMapper.realClass(ArrayMapper.java:76)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.MapperWrapper.realClass(MapperWrapper.java:26)
at com.thoughtworks.xstream.mapper.CachingMapper.realClass(CachingMapper.java:34)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.determineType(AbstractReflectionConverter.java:254)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doUnmarshal(AbstractReflectionConverter.java:155)
at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.unmarshal(AbstractReflectionConverter.java:118)
at com.thoughtworks.xstream.core.TreeUnmarshaller.convert(TreeUnmarshaller.java:56)
... 9 more
Voici MaClasse.java :
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/**
 * MaClasse.java
 *
 * This file was auto-generated from WSDL
 * by the Apache Axis 1.2 May 03, 2005 (02:20:24 EDT) WSDL2Java emitter.
 */
 
package com.pack.webservice.common;
 
public class MaClasse implements java.io.Serializable, org.apache.axis.encoding.SimpleType {
    private java.lang.String _value;
    private java.lang.String type;  // attribute
    private java.lang.Boolean mandatory;  // attribute
    private java.lang.Boolean readonly;  // attribute
 
    public MaClasse() {
    }
 
    // Simple Types must have a String constructor
    public MaClasse(java.lang.String _value) {
        this._value = _value;
    }
    // Simple Types must have a toString for serializing the value
    public java.lang.String toString() {
        return _value;
    }
 
 
    /**
     * Gets the _value value for this MaClasse.
     * 
     * @return _value
     */
    public java.lang.String get_value() {
        return _value;
    }
 
 
    /**
     * Sets the _value value for this MaClasse.
     * 
     * @param _value
     */
    public void set_value(java.lang.String _value) {
        this._value = _value;
    }
 
 
    /**
     * Gets the type value for this MaClasse.
     * 
     * @return type
     */
    public java.lang.String getType() {
        return type;
    }
 
 
    /**
     * Sets the type value for this MaClasse.
     * 
     * @param type
     */
    public void setType(java.lang.String type) {
        this.type = type;
    }
 
 
    /**
     * Gets the mandatory value for this MaClasse.
     * 
     * @return mandatory
     */
    public java.lang.Boolean getMandatory() {
        return mandatory;
    }
 
 
    /**
     * Sets the mandatory value for this MaClasse.
     * 
     * @param mandatory
     */
    public void setMandatory(java.lang.Boolean mandatory) {
        this.mandatory = mandatory;
    }
 
 
    /**
     * Gets the readonly value for this MaClasse.
     * 
     * @return readonly
     */
    public java.lang.Boolean getReadonly() {
        return readonly;
    }
 
 
    /**
     * Sets the readonly value for this MaClasse.
     * 
     * @param readonly
     */
    public void setReadonly(java.lang.Boolean readonly) {
        this.readonly = readonly;
    }
 
    private java.lang.Object __equalsCalc = null;
    public synchronized boolean equals(java.lang.Object obj) {
        if (!(obj instanceof MaClasse)) return false;
        MaClasse other = (MaClasse) obj;
        if (obj == null) return false;
        if (this == obj) return true;
        if (__equalsCalc != null) {
            return (__equalsCalc == obj);
        }
        __equalsCalc = obj;
        boolean _equals;
        _equals = true && 
            ((this._value==null && other.get_value()==null) || 
             (this._value!=null &&
              this._value.equals(other.get_value()))) &&
            ((this.type==null && other.getType()==null) || 
             (this.type!=null &&
              this.type.equals(other.getType()))) &&
            ((this.mandatory==null && other.getMandatory()==null) || 
             (this.mandatory!=null &&
              this.mandatory.equals(other.getMandatory()))) &&
            ((this.readonly==null && other.getReadonly()==null) || 
             (this.readonly!=null &&
              this.readonly.equals(other.getReadonly())));
        __equalsCalc = null;
        return _equals;
    }
 
    private boolean __hashCodeCalc = false;
    public synchronized int hashCode() {
        if (__hashCodeCalc) {
            return 0;
        }
        __hashCodeCalc = true;
        int _hashCode = 1;
        if (get_value() != null) {
            _hashCode += get_value().hashCode();
        }
        if (getType() != null) {
            _hashCode += getType().hashCode();
        }
        if (getMandatory() != null) {
            _hashCode += getMandatory().hashCode();
        }
        if (getReadonly() != null) {
            _hashCode += getReadonly().hashCode();
        }
        __hashCodeCalc = false;
        return _hashCode;
    }
 
    // Type metadata
    private static org.apache.axis.description.TypeDesc typeDesc =
        new org.apache.axis.description.TypeDesc(MaClasse.class, true);
 
    static {
        typeDesc.setXmlType(new javax.xml.namespace.QName("http://www.url.com/WS/Common", "MaClasse"));
        org.apache.axis.description.AttributeDesc attrField = new org.apache.axis.description.AttributeDesc();
        attrField.setFieldName("type");
        attrField.setXmlName(new javax.xml.namespace.QName("", "type"));
        attrField.setXmlType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"));
        typeDesc.addFieldDesc(attrField);
        attrField = new org.apache.axis.description.AttributeDesc();
        attrField.setFieldName("mandatory");
        attrField.setXmlName(new javax.xml.namespace.QName("", "mandatory"));
        attrField.setXmlType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "boolean"));
        typeDesc.addFieldDesc(attrField);
        attrField = new org.apache.axis.description.AttributeDesc();
        attrField.setFieldName("readonly");
        attrField.setXmlName(new javax.xml.namespace.QName("", "readonly"));
        attrField.setXmlType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "boolean"));
        typeDesc.addFieldDesc(attrField);
        org.apache.axis.description.ElementDesc elemField = new org.apache.axis.description.ElementDesc();
        elemField.setFieldName("_value");
        elemField.setXmlName(new javax.xml.namespace.QName("", "_value"));
        elemField.setXmlType(new javax.xml.namespace.QName("http://www.w3.org/2001/XMLSchema", "string"));
        elemField.setNillable(false);
        typeDesc.addFieldDesc(elemField);
    }
 
    /**
     * Return type metadata object
     */
    public static org.apache.axis.description.TypeDesc getTypeDesc() {
        return typeDesc;
    }
 
    /**
     * Get Custom Serializer
     */
    public static org.apache.axis.encoding.Serializer getSerializer(
           java.lang.String mechType, 
           java.lang.Class _javaType,  
           javax.xml.namespace.QName _xmlType) {
        return 
          new  org.apache.axis.encoding.ser.SimpleSerializer(
            _javaType, _xmlType, typeDesc);
    }
 
    /**
     * Get Custom Deserializer
     */
    public static org.apache.axis.encoding.Deserializer getDeserializer(
           java.lang.String mechType, 
           java.lang.Class _javaType,  
           javax.xml.namespace.QName _xmlType) {
        return 
          new  org.apache.axis.encoding.ser.SimpleDeserializer(
            _javaType, _xmlType, typeDesc);
    }
 
}

Savez-vous comment je peux résoudre cette erreur ?
Ou bien de quel manière je peux sérialiser et désérialiser mes objets complètement malgré qu'ils ne soient pas définis comme des JavaBeans ? (Le changement de librairies pour faire cette manipulation ne me dérange pas).