基于Axis的自定义对象序列化

时间：2010-07-21 来源：xue2

基于Axis的自定义对象序列化
由于最近公司采用Web Services技术来做引擎的信息通知，有关技术人员反应采用Axis不能传递用户自定义对象。
错误信息大体如下：
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.userException
faultSubcode:
faultString: java.io.IOException: No serializer found for class com.whcyit.axis.SimpleObject in registry org.apache.axis.encoding.TypeMappingDelegate@da3a1e
faultActor:
faultNode:
faultDetail:
{http://xml.apache.org/axis/}stackTrace:java.io.IOException: No serializer found for class com.whcyit.axis.SimpleObject in registry org.apache.axis.encoding.TypeMappingDelegate@da3a1e
at org.apache.axis.encoding.SerializationContext.serializeActual(SerializationContext.java:1429)
对于Web Services的接触已经是5年多前的事情了，基本上对于Web Services只是存在一个概念了。抱着疑问，决定自己试一下到底怎么回事？
最后通过2个多小时的测试，终于把问题解决了。解决方式如下：
1. 在Axis服务端，注册自定义对象的序列化/反序列化器
主要是修改axis安装目录下WEB-INF/server-config.wsdd文件。 <service name="SimpleObjectService" provider="java:RPC">
<parameter name="allowedMethods" value="*"/>
<parameter name="className" value="com.whcyit.axis.SimpleObjectService"/>
<beanMapping languageSpecificType="java:com.whcyit.axis.SimpleObject" qname="ns:SimpleObject" xmlns:ns="urn:BeanService"/>
</service>
注意service/beanMapping的定义。languageSpecificType中定义使用那个类, qname定义类的名称。
2. 在Axis客户端，注册自定义对象的序列化/反序列化器。
核心代码如下：
//创建调用对象
Service service = new Service();
Call call = null;
call = (Call) service.createCall();
//注册SimpleObject的序列化类型
QName qn = new QName("urn:BeanService","SimpleObject");
call.registerTypeMapping(SimpleObject.class, qn,
    new BeanSerializerFactory(SimpleObject.class, qn),
    new BeanDeserializerFactory(SimpleObject.class, qn));

全部代码示例如下：
//SimpleObject.java
//Web Service对象传递的对象
package com.whcyit.axis;

import java.io.Serializable;

public class SimpleObject implements Serializable {

    /**
    *
    */
    private static final long serialVersionUID = -6414428095965735488L;

    private int i = 0;

    private float f = 0.0f;

    private String str = "";

    public SimpleObject() {

    }

    public float getFloat() {
    return f;
    }

    public void setFloat(float f) {
    this.f = f;
    }

    public int getInt() {
    return i;
    }

    public void setInt(int i) {
    this.i = i;
    }

    public String getString() {
    return str;
    }

    public void setString(String str) {
    this.str = str;
    }
}

// SimpleObjectService.java
//服务程序
package com.whcyit.axis;

public class SimpleObjectService {

    public String sayHello(String name) {
    return "Hello " + name +"!";
    }

    public String getString(SimpleObject obj) {
    System.out.println("SimpleObjectService getString invoked!");
    return "return by serviced:"+obj.getString();
    }

    public SimpleObject createSimpleObject(int i,float f,String str) {
    System.out.println("SimpleObjectService createSimpleObject invoked!");
    SimpleObject so = new SimpleObject();
    so.setInt(i);
    so.setFloat(f);
    so.setString(str);
    return so;

    }
}

// SimpleObjectClient.java
//客户端调用文件
package com.whcyit.axis;

import javax.xml.namespace.QName;

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;

public class SimpleObjectClient {

    /**
    * @param args
    */
    public static void main(String[] args) {
    String ret = "";
    try {
    String wsdlUrl = "http://localhost:8080/axis/services/SimpleObjectService?wsdl";
    String nameSpaceUri = "http://localhost:8080/axis/services/SimpleObjectService";
    //String wsdlUrl = "http://10.68.19.24:8080/sample/services/SimpleObjectService?wsdl";
    //String nameSpaceUri = "http://10.68.19.24:8080/sample/services/SimpleObjectService";

    //创建调用对象
    Service service = new Service();
    Call call = null;
    call = (Call) service.createCall();

    //注册SimpleObject的序列化类型
    QName qn = new QName("urn:BeanService","SimpleObject");
    call.registerTypeMapping(SimpleObject.class, qn,
    new BeanSerializerFactory(SimpleObject.class, qn),
    new BeanDeserializerFactory(SimpleObject.class, qn));

    //调用sayHello
    System.out.println(">>>sayHello");
    call.setOperationName(new QName(nameSpaceUri, "sayHello"));
    call.setTargetEndpointAddress(new java.net.URL(wsdlUrl));

    ret = (String) call.invoke(new Object[] { "liu2" });
    System.out.println("return value is " + ret);

    //调用getDesc
    System.out.println(">>>getString");
    SimpleObject so = new SimpleObject();
    so.setString("hello!");
    QName getDescQn = new QName(nameSpaceUri, "getString");

    call.setOperationName(getDescQn);
    call.setTargetEndpointAddress(new java.net.URL(wsdlUrl));
    ret = (String) call.invoke(new Object[] { so });
    System.out.println("return value is " + ret);

    //调用createSimpleObject
    System.out.println(">>>createSimpleObject");
    QName getObjectQn = new QName(nameSpaceUri, "createSimpleObject");

    call.setOperationName(getObjectQn);
    call.setTargetEndpointAddress(new java.net.URL(wsdlUrl));
    SimpleObject rtnSO = (SimpleObject) call.invoke(new Object[] { new Integer(1),new Float(0.1f),"liu2" });
    System.out.println("return object " + rtnSO.getString());

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

}

//server-config.wsdd
//服务端配置文件
<?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">
<globalConfiguration>
<parameter name="adminPassword" value="admin"/>
<parameter name="attachments.Directory" value="C:\eclipse\workspace\bookstore\WEB-INF\attachments"/>
<parameter name="attachments.implementation" value="org.apache.axis.attachments.AttachmentsImpl"/>
<parameter name="sendXsiTypes" value="true"/>
<parameter name="sendMultiRefs" value="true"/>
<parameter name="sendXMLDeclaration" value="true"/>
<parameter name="axis.sendMinimizedElements" value="true"/>
<requestFlow>
   <handler type="java:org.apache.axis.handlers.JWSHandler">
    <parameter name="scope" value="session"/>
   </handler>
   <handler type="java:org.apache.axis.handlers.JWSHandler">
    <parameter name="scope" value="request"/>
    <parameter name="extension" value=".jwr"/>
   </handler>
</requestFlow>
</globalConfiguration>
<handler name="LocalResponder" type="java:org.apache.axis.transport.local.LocalResponder"/>
<handler name="Authenticate" type="java:org.apache.axis.handlers.SimpleAuthenticationHandler"/>
<handler name="URLMapper" type="java:org.apache.axis.handlers.http.URLMapper"/>
<service name="Version" provider="java:RPC">
<parameter name="allowedMethods" value="getVersion"/>
<parameter name="className" value="org.apache.axis.Version"/>
</service>
<service name="SimpleObjectService" provider="java:RPC">
<parameter name="allowedMethods" value="*"/>
<parameter name="className" value="com.whcyit.axis.SimpleObjectService"/>
<beanMapping languageSpecificType="java:com.whcyit.axis.SimpleObject" qname="ns:SimpleObject" xmlns:ns="urn:BeanService"/>
</service>
<service name="AdminService" provider="java:MSG">
<parameter name="allowedMethods" value="AdminService"/>
<parameter name="enableRemoteAdmin" value="false"/>
<parameter name="className" value="org.apache.axis.utils.Admin"/>
<namespace>http://xml.apache.org/axis/wsdd/</namespace>
</service>
<transport name="local">
<responseFlow>
   <handler type="LocalResponder"/>
</responseFlow>
</transport>
<transport name="http">
<requestFlow>
   <handler type="URLMapper"/>
   <handler type="java:org.apache.axis.handlers.http.HTTPAuthHandler"/>
</requestFlow>
</transport>
</deployment>
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