Hi,

I have a webservice project. It requires pass the content of a file
between the services and their clients. The file can be as big as 5M.
We use Oracle 10g application server.

I defined an interface. Use the byte[] to pass the content of a file.
It works for small size files. However, to sending a 1M size of a file,
it took about 10 minutes, and failed with the following exceptions:
Exception in thread "main" [SOAPException: faultCode=SOAP-ENV:Server;
msg= [java
.lang.OutOfMemoryError]]
       at proxy.
SubmitLargeFileIFProxy.makeSOAPCallRPC(SubmitLargeFileIFProxy.java:102)
       at proxy.
SubmitLargeFileIFProxy.submit(SubmitLargeFileIFProxy.java:78)
       at SubmitLargeFile.main(SubmitLargeFile.java:44)

I used -Xmx512m in server side, and it ran out of memory.

So I have at least two problems. It took too long even if it handles a
small file. It took too much memory space. I guess it is something to
do with binding. The byte[] is mapped to xsd:base64Binary. I tried
Byte[], it comes with same mapping, and same behavior. I also tried to
hide the byte[] in an object, which implements Serializable. Each time,
the generated wsdl shows the byte[] or Byte[] are mapped to
xsd:base64Binary.

Did I do anything wrong? Is there any better way to send a file via
webservice?

Thanks a lot,

Peter

--------------------------------------------------------------------------------------------
Here is the list of interface.

import java.rmi.Remote;
import java.rmi.RemoteException;

public interface SubmitLargeFileIF extends Remote {
   public String submit(String fileName, byte[] fileContent, String
otherInfo) throws RemoteException;
}

Here is the wsdl generated by oracle toolkit
<?xml version="1.0" encoding="UTF-8"?>
<definitions name="SubmitLargeFileImpl"
       targetNamespace="http://tempuri.org/SubmitLargeFileImpl.wsdl"
       xmlns="http://schemas.xmlsoap.org/wsdl/"
       xmlns:tns="http://tempuri.org/SubmitLargeFileImpl.wsdl"
       xmlns:xsd="http://www.w3.org/2001/XMLSchema"
       xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" >

 <documentation>
 WSDL for Service: SubmitLargeFileImpl, generated by Oracle WSDL
toolkit (version: 1.1)
 </documentation>

 <types>
   <schema
targetNamespace="http://tempuri.org/SubmitLargeFileImpl.xsd"
xmlns:tns="http://tempuri.org/SubmitLargeFileImpl.xsd"
xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"/>
 </types>

 <message name="submitInput">
   <part name="param0" type="xsd:string"/>
   <part name="param1" type="xsd:base64Binary"/>
   <part name="param2" type="xsd:string"/>
 </message>
 <message name="submitOutput">
   <part name="return" type="xsd:string"/>
 </message>

 <portType name="SubmitLargeFileImplPortType">
   <operation name="submit">
     <input message="tns:submitInput"/>
     <output message="tns:submitOutput"/>
   </operation>
 </portType>

 <binding name="SubmitLargeFileImplBinding"
type="tns:SubmitLargeFileImplPortType">
   <soap:binding transport="http://schemas.xmlsoap.org/soap/http"
style="rpc"/>
   <operation name="submit">
     <soap:operation soapAction="urn:SubmitLargeFileImpl/submit"/>
     <input>
       <soap:body use="encoded"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="urn:SubmitLargeFileImpl"/>
     </input>
     <output>
       <soap:body use="encoded"
encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
namespace="urn:SubmitLargeFileImpl"/>
     </output>
   </operation>
 </binding>

 <service name="SubmitLargeFileImpl">
   <port name="SubmitLargeFileImplPort"
binding="tns:SubmitLargeFileImplBinding">
     <soap:address
location="http://192.168.1.201:80/submitLargeFile/submit"/>
   </port>
 </service>

</definitions>