Problem returning a String array from a web service

[Sac Anand]

Hi,

I am trying to send an array of string from my web service.

When i try to compile client, following error comes:
incompatible types
[javac] found : java.util.List<java.lang.String>
[javac] required: java.lang.String[]

I am using Sun Application Server to deploy my web service application.

Can anybody help me in this regard?

[Ulf Dittmer]

It sounds like there is a type mismatch somewhere. Apparently, somewhere a List<String> is used, instead of a String[]. Make sure arrays are used where you consume the WS.

[Sac Anand]

Server Code

package endpoint;
 
import javax.jws.WebService;
 
@WebService
public class StockQuote
{
public String[] getPrice(String company_name)
{
String price1[] = {"400", "450"};
 
if (company_name.equalsIgnoreCase("Abc"))
//price1="400";
else
//price1="-1";
 
return price1;
}
}
  

Client Code

  package client;
 
import javax.xml.ws.WebServiceRef;
import endpoint.StockQuoteService;
import endpoint.StockQuote;
 
public class Client
{
@WebServiceRef(wsdlLocation="http://localhost:8080/StockQuote/StockQuoteService?WSDL")
static StockQuoteService service;
    
public static void main(String[] args)
{
Client client = new Client();
client.getStockQuoteInfo();
}
 
public void getStockQuoteInfo()
{
try
{
StockQuote port = service.getStockQuotePort();
String[] price = port.getPrice("Abc");
 
System.out.println("Stock Price = " + price[0]);
System.out.println("Stock Price = " + price[1]);
}
catch(Exception e)
{
e.printStackTrace();
}
}
}  

Now, when i generate client side artifacts, it uses java.util.List<java.lang.String> but i don't know why?

WSDL looks like (automatically generated)

 <?xml version="1.0" encoding="UTF-8"?><definitions xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:tns="http://endpoint/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" targetNamespace="http://endpoint/" name="StockQuoteService">
  <types>
    <xsd:schema>
      <xsd:import namespace="http://endpoint/" schemaLocation="http://GDCMOT-SACHANAND.wipro.com:8080/StockQuote/StockQuoteService/__container$publishing$subctx/WEB-INF/wsdl/StockQuoteService_schema1.xsd" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"/>
    </xsd:schema>
  </types>
  <message name="getPrice">
    <part name="parameters" element="tns:getPrice"/>
  </message>
  <message name="getPriceResponse">
    <part name="parameters" element="tns:getPriceResponse"/>
  </message>
  <portType name="StockQuote">
    <operation name="getPrice">
      <input message="tns:getPrice"/>
      <output message="tns:getPriceResponse"/>
    </operation>
  </portType>
  <binding name="StockQuotePortBinding" type="tns:StockQuote">
    <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document"/>
    <operation name="getPrice">
      <soap :-o	 peration soapAction=""/>
      <input>
        <soap:body use="literal"/>
      </input>
      <output>
        <soap:body use="literal"/>
      </output>
    </operation>
  </binding>
  <service name="StockQuoteService">
    <port name="StockQuotePort" binding="tns:StockQuotePortBinding">
      <soap:address location="http://GDCMOT-SACHANAND.wipro.com:8080/StockQuote/StockQuoteService" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"/>
    </port>
  </service>
</definitions>   

XSD is also generated at server side .. it looks like

  <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xs:schema version="1.0" targetNamespace="http://endpoint/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
 
  <xs:element name="getPrice" type="ns1:getPrice" xmlns:ns1="http://endpoint/"/>
 
  <xs:complexType name="getPrice">
    <xs:sequence>
      <xs:element name="arg0" type="xs:string" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>
 
  <xs:element name="getPriceResponse" type="ns2:getPriceResponse" xmlns:ns2="http://endpoint/"/>
 
  <xs:complexType name="getPriceResponse">
    <xs:sequence>
      <xs:element name="return" type="xs:string" maxOccurs="unbounded" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>
</xs:schema>
 
  

Any help is highly appreciated.

[Marty Speck]

[javac] found : java.util.List<java.lang.String>
[javac] required: java.lang.String[]

Looks like you're returning a List of Strings from a method instead of an Array of Strings.