Unable to read the SharePoint List using java - web-services

Question

Here i am trying to read the list of sharepoint. For this i have done the following:
I have downloaded the WSDL file which i got from The URL like: sharepointsite.com/_vti_bin/Lists.asmx?WSDL.
and i have executed the following command to generate the classes in the directory
“C:\Program Files\Java\jdk1.6.0_12\bin\wsimport.exe” -p com.microsoft.schemas.sharepoint.soap -keep -extension Lists.wsdl.
Imported those classes in my eclipse IDE java application.
and i have written the following code
/* Creates a port connected to the SharePoint Web Service given.
* Authentication is done here. It also prints the authentication details
* in the console.
* #param userName SharePoint username
* #param password SharePoint password
* #return port ListsSoap port, connected with SharePoint
* #throws Exception in case of invalid parameters or connection error.
*/
public static ListsSoap sharePointListsAuth(String userName, String password) throws Exception {
ListsSoap port = null;
if (userName != null && password != null) {
try {
Lists service = new Lists();
port = service.getListsSoap();
System.out.println("Web Service Auth Username: " + userName);
((BindingProvider) port).getRequestContext().put(BindingProvider.USERNAME_PROPERTY, userName);
((BindingProvider) port).getRequestContext().put(BindingProvider.PASSWORD_PROPERTY, password);
} catch (Exception e) {
throw new Exception("Error: " + e.toString());
}
} else {
throw new Exception("Couldn't authenticate: Invalid connection details given.");
}
return port;
}
/**
* Creates a string from an XML file with start and end indicators
* #param docToString document to convert
* #return string of the xml document
*/
public static String xmlToString(Document docToString) {
String returnString = "\n-------------- XML START --------------\n";
try {
//create string from xml tree
//Output the XML
//set up a transformer
TransformerFactory transfac = TransformerFactory.newInstance();
Transformer trans;
trans = transfac.newTransformer();
trans.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
trans.setOutputProperty(OutputKeys.INDENT, "yes");
StringWriter sw = new StringWriter();
StreamResult streamResult = new StreamResult(sw);
DOMSource source = new DOMSource(docToString);
trans.transform(source, streamResult);
String xmlString = sw.toString();
//print the XML
returnString = returnString + xmlString;
} catch (TransformerException ex) {
Logger.getLogger(Manager.class.getName()).log(Level.SEVERE, null, ex);
}
returnString = returnString + "-------------- XML END --------------";
return returnString;
}
/**
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* Connects to a SharePoint Lists Web Service through the given open port,
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* and reads all the elements of the given list. Only the ID and the given
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* attributes (column names) are displayed, as well as a dump of the SOAP
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* response from the Web Service (for debugging purposes).
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* #param port an already authentificated SharePoint Online SOAP port
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* #param listName original name of the Sharepoint list that is going to be read
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* #param listColumnNames arraylist containing the various names of the Columns
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* of the SharePoint list that are going to be read. If the column name isn't
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* found, then an exception will be thrown
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* #param rowLimit limits the number of rows (list items) that are going to
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* be returned
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* #throws Exception
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*/
public static void displaySharePointList(ListsSoap port, String listName, ArrayList<String> listColumnNames, String rowLimit) throws Exception {
if (port != null && listName != null && listColumnNames != null && rowLimit != null) {
try {
//Here are additional parameters that may be set
String viewName = "";
GetListItems.ViewFields viewFields = null;
GetListItems.Query query = null;
GetListItems.QueryOptions queryOptions = null;
String webID = "";
//Calling the List Web Service
GetListItemsResponse.GetListItemsResult result = port.getListItems(listName, viewName, query, viewFields, rowLimit, queryOptions, webID);
Object listResult = result.getContent().get(0);
if ((listResult != null) && (listResult instanceof ElementNSImpl)) {
ElementNSImpl node = (ElementNSImpl) listResult;
//Dumps the retrieved info in the console
Document document = node.getOwnerDocument();
System.out.println("SharePoint Online Lists Web Service Response:" + Manager.xmlToString(document));
//selects a list of nodes which have z:row elements
NodeList list = node.getElementsByTagName("z:row");
System.out.println("=> " + list.getLength() + " results from SharePoint Online");
//Displaying every result received from SharePoint, with its ID
for (int i = 0; i < list.getLength(); i++) {
//Gets the attributes of the current row/element
NamedNodeMap attributes = list.item(i).getAttributes();
System.out.println("******** Item ID: " + attributes.getNamedItem("ows_ID").getNodeValue()+" ********");
//Displays all the attributes of the list item that correspond to the column names given
for (String columnName : listColumnNames) {
String internalColumnName = "ows_" + columnName;
if (attributes.getNamedItem(internalColumnName) != null) {
System.out.println(columnName + ": " + attributes.getNamedItem(internalColumnName).getNodeValue());
} else {
throw new Exception("Couldn't find the '" + columnName + "' column in the '" + listName + "' list in SharePoint.\n");
}
}
}
} else {
throw new Exception(listName + " list response from SharePoint is either null or corrupt\n");
}
} catch (Exception ex) {
throw new Exception("Exception. See stacktrace." + ex.toString() + "\n");
}
}
}
public static void main(String[] args) {
try {
//Authentication parameters
String userName = "domain\\username";
String password = "pass";
//Opening the SOAP port of the Lists Web Service
ListsSoap port = Manager.sharePointListsAuth(userName, password);
/*
* Lists Web service parameters
* The list names below must be the *original* names of the list.
* if a list or column was renamed from SharePoint afterwards,
* these parameters don't change.
*/
String listName = "listname";
String rowLimit = "2";
ArrayList<String> listColumnNames = new ArrayList<String>();
listColumnNames.add("Name");
listColumnNames.add("ID");
//Displays the lists items in the console
Manager.displaySharePointList(port, listName, listColumnNames, rowLimit);
} catch (Exception ex) {
System.err.println(ex);
}
}
I am getting following exception :
Web Service Auth Username: "domain\username"
java.lang.Exception: Exception. See stacktrace.javax.xml.ws.soap.SOAPFaultException: Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' was thrown.
It would be helpfull if i get the specific exception from the server.With this expection i am unable to track my pgm.
I dont know where did i go wrong? am i missing anything ? any configuration is required ?
Thanks in advance for your help

Answer 1

I had the same problem, try with an Authenticator :
new BasicAuthentication(userName,password).authenticate();
My BasicAuthentication class :
import java.net.Authenticator;
import java.net.PasswordAuthentication;
public class BasicAuthentication extends Authenticator
{
private String username;
private String password;
public BasicAuthentication(String username, String password)
{
this.username = username;
this.password = password;
}
public PasswordAuthentication getPasswordAuthentication()
{
return (new PasswordAuthentication(username,password.toCharArray()));
}
public void authenticate()
{
Authenticator.setDefault(this);
}
}