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基于Axis的自定義對象序列化

2019-11-18 16:22:59
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供稿:網(wǎng)友

  作者的blog:http://www.matrix.org.cn/blog/liu2liu2/

由于最近公司采用Web Services技術(shù)做企業(yè)應(yīng)用集成(EAI)相關(guān)的項(xiàng)目,有關(guān)技術(shù)人員反應(yīng)采用Axis不能傳遞用戶自定義對象。

錯(cuò)誤信息大體如下:
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)

對于Web Services的接觸已經(jīng)是4年多前的事情了,基本上對于Web Services只是存在一個(gè)概念了。抱著疑問,決定自己試一下到底怎么回事?
最后通過2個(gè)多小時(shí)的測試,終于把問題解決了。解決方式如下:

1. 在Axis服務(wù)端,注冊自定義對象的序列化/反序列化器
主要是修改axis安裝目錄下WEB-INF/server-config.wsdd文件。

<service name="SimpleObjectService" 

注意service/beanMapping的定義。languageSpecificType中定義使用那個(gè)類, qname定義類的名稱。

2. 在Axis客戶端,注冊自定義對象的序列化/反序列化器。

核心代碼如下:

//創(chuàng)建調(diào)用對象
Service service = new Service();
Call call = null;
call = (Call) service.createCall();
//注冊SimpleObject的序列化類型
QName qn = new QName("urn:BeanService","SimpleObject");
call.registerTypeMapping(SimpleObject.class, qn,    new BeanSerializerFactory(SimpleObject.class, qn),    new BeanDeserializerFactory(SimpleObject.class, qn));


全部代碼示例如下:

//SimpleObject.java
//Web Service對象傳遞的對象
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

//服務(wù)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
//客戶端調(diào)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";    

//創(chuàng)建調(diào)用對象    
Service service = new Service();    
Call call = null;    
call = (Call) service.createCall();      

//注冊SimpleObject的序列化類型    
QName qn = new QName("urn:BeanService","SimpleObject");    call.registerTypeMapping(SimpleObject.class, qn,    new BeanSerializerFactory(SimpleObject.class, qn),    new BeanDeserializerFactory(SimpleObject.class, qn));    

//調(diào)用sayHello    
System.out.println(">>>sayHello");    
call.set
OperationName(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);        

//調(diào)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);        

//調(diào)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
//服務(wù)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:/eclsession"/>   </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>
進(jìn)入討論組討論。

(出處:http://m.survivalescaperooms.com)



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