作者的blog：http://www.matrix.org.cn/blog/liu2liu2/
由于最近公司采用Web Services技术做企业应用集成(EAI)相关的项目，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4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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（出处：http://www.knowsky.com）
