org.xml.sax.SAXException: Invalid element

今天开发项目遇到一个问题,简单记录下,希望能帮到遇到同样问题的同学

我使用Axis1.4开发webservice客户端,客户端代码如下:

 Service service = new Service();

Call call;

try {

call = (Call)service.createCall();

call.setTargetEndpointAddress(d2Url);

QName qn = new QName("", "CMSID");

call.addParameter(qn, XMLType.SOAP_STRING, ParameterMode.IN);

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QName qn2 = new QName("", "CorrelateID");

call.addParameter(qn2, XMLType.SOAP_STRING, ParameterMode.IN);

QName qn3 = new QName("", "ContentMngXMLURL");

call.addParameter(qn3, XMLType.SOAP_STRING, ParameterMode.IN);

call.setReturnClass(ContentDeployReqResponse.class);

QName mapping = new QName("iptv", "ContentPreloadReqResponse");

call.registerTypeMapping(ContentDeployReqResponse.class, mapping,

new BeanSerializerFactory(ContentDeployReqResponse.class, mapping), 

new BeanDeserializerFactory(ContentDeployReqResponse.class, mapping));

call.setOperationName(new QName("iptv", "ContentPreloadReq"));

return call;

} catch (ServiceException e) {

e.printStackTrace();

}catch(Exception e){

e.printStackTrace();

}

return null;

ContentDeployReqResponse类代码如下:

import java.io.Serializable;

import javax.xml.bind.annotation.XmlAccessType;

import javax.xml.bind.annotation.XmlAccessorType;

import javax.xml.bind.annotation.XmlElement;

@XmlAccessorType(XmlAccessType.FIELD)

public class ContentDeployReqResponse implements Serializable{

/**

*/

private static final long serialVersionUID = -6709028467973715698L;

@XmlElement(name = "ErrorDescription")

private String errorDescription;

@XmlElement(name = "ResultCode")

private int resultCode;

public int getResultCode() {

return resultCode;

}

public void setResultCode(int resultCode) {

this.resultCode = resultCode;

}

public String getErrorDescription() {

return errorDescription;

}

public void setErrorDescription(String errorDescription) {

this.errorDescription = errorDescription;

}

}

调用服务端后返回的xml如下:

<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">

<S:Body>

<ns2:ContentPreloadReqResponse xmlns:ns2="iptv">

<return>

<ResultCode>0</ResultCode>

<ErrorDescription>success</ErrorDescription>

</return>

</ns2:ContentPreloadReqResponse>

</S:Body>

</S:Envelope>

Axis在解析xml为ContentDeployReqResponse  时出现以下错误:

[2013-12-19 17:51:24,234 ERROR] Exception: org.apache.axis.client.Call.invoke(Call.java:2469)

org.xml.sax.SAXException: Invalid element in opt.fonsview.cmm.ws.ContentDeployReqResponse - ResultCode

at org.apache.axis.encoding.ser.BeanDeserializer.onStartChild(BeanDeserializer.java:258)

at org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:1035)

at org.apache.axis.message.SAX2EventRecorder.replay(SAX2EventRecorder.java:165)

at org.apache.axis.message.MessageElement.publishToHandler(MessageElement.java:1141)

at org.apache.axis.message.RPCElement.deserialize(RPCElement.java:236)

at org.apache.axis.message.RPCElement.getParams(RPCElement.java:384)

at org.apache.axis.client.Call.invoke(Call.java:2467)

at org.apache.axis.client.Call.invoke(Call.java:2366)

at org.apache.axis.client.Call.invoke(Call.java:1812)

首先想到的是将ContentDeployReqResponse  中的属性首字母大写,发现还是出现以上问题,查看源代码,Axis用到的是javax.bean相关类来生成ContentDeployReqResponse  类信息,我猜测应该是为了跟java规范保持一致,所以在保存属性名的时候是将首字母小写,而返回的xml中首字母是大写,导致出错。

采用第二种方法,改写Axis相关源码,替换jar包中文件,运行成功,改写的源文件为org.apache.axis.encoding.ser.BeanDeserializer 的onStartChild方法   

改写之前:

if (propDesc == null) {

            // look for a field by this name. 

        propDesc = (BeanPropertyDescriptor) propertyMap.get(localName);

}

改写之后:

if (propDesc == null) {

            // look for a field by this name.

        for(Iterator iter = propertyMap.keySet().iterator(); iter.hasNext();){

        String key = (String)iter.next();

        if(key.equalsIgnoreCase(localName)){

        propDesc = (BeanPropertyDescriptor) propertyMap.get(key);

        break;

        }

        }

        }

开发过程中还遇到一个问题未解决:Axis在解析返回的XML时耗费的时间过长,达10分钟之久,发现问题出在InputStream的read方法上,什么原因?欢迎碰到相同的同学一起探讨

附件为修改后的axis jar包

 

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转载自wilian.iteye.com/blog/1992365