I found this example on the dev2dev site:
http://dev2dev.bea.com/pub/a/2005/09/spring_integration_weblogic_server.html?page=3

Unfortunately, it didn’t work for me. I spent almost an entire day trying to get it to work. So, in hopes of saving someone else some time, I’ve posted the correct way to make this work below. The example in the article is incorrect in one place. It uses the wsdlDocumentUrl attribute of the JaxRpcPortProxyFactoryBean. However, that attribute is a java.net.URL, not a String, so setting it with a string value will not work. The value I entered for the wsdDocumentlUrl had no effect. Instead, you need to set the wsdl URL on the Impl class generated by clientgen, by passing it into the constructor as seen in the second bean definition below.

<bean id="investorWebService"
        class="org.springframework.remoting.jaxrpc.JaxRpcPortProxyFactoryBean" lazy-init="true">
   <property name="portName">
            <value>InvestorServicePort</value>
    </property>
    <property name="serviceInterface">
            <value>com.xxx.fmg.investorservice.common.ws.InvestorServicePort</value>
    </property>
    <property name="jaxRpcService">
            <ref bean="investorServiceImpl"/>
    </property>
</bean>

<!-- allows the jaxRpcService class to execute its constructor -->
<bean id="investorServiceImpl"
        class="com.xxx.fmg.investorservice.common.ws.InvestorService_Impl" lazy-init="true">
        <constructor -arg>
            <value>http://server:port/InvestorService/InvestorService?WSDL</value>
        </constructor>
</bean>

Spring Framework 2.0 is coming out in the next few months. Supposedly there are some great new Web Service tools in that release. If that’s the case we can stop using the web service tools provided by BEA.

public class SecureDriverManagerDataSource extends DriverManagerDataSource
{
    private String key;

    public String getKey()
    {
        return key;
    }

    public void setKey(String key)
    {
        this.key = key;
    }

    public String getPassword()
    {
        if (getKey() == null)
        {
            throw new RuntimeException("Key Value is not set");
        }
        try
        {   // possible future enhancement, allow user to set which type of encryption to use for this class
            return SimpleAESEncrypter.decrypt(super.getPassword(),getKey());
        }
        catch (SimpleAESEncrypterException e)
        {
            throw new RuntimeException(e.getMessage(),e);
        }
    }

    protected Connection getConnectionFromDriverManager() throws SQLException
    {
        return getConnectionFromDriverManager(getUrl(),getUsername(), getPassword());
    }
}

And the Spring Bean Defininition:

<bean id="secureDataSource" class="com.mattluce.db.SecureDriverManagerDataSource" lazy-init="true">
        <property name="driverClassName">
            <value>com.sybase.jdbc2.jdbc.SybDriver</value>
        </property>
        <property name="url">
            <value>jdbc:sybase:Tds:dbserver:1234</value>
        </property>
        <property name="username">
            <value>dbuser</value>
        </property>
        <property name="password">
            <value>x345sdfxxxdasdf==</value>
        </property>
         <property name="key">
            <value>rxxrt56xxc5uuEO/A==</value>
        </property>
    </bean> This implemenation uses our AES encryption utility, but it could be modified to set the encryption implentation as another attribute of the Datasource. You could then set that in the Spring Bean Definition as well