From Struts 1.1 to Struts 1.2

I begin developing application based on Struts 1.1. But close to finish I discover that in Struts 1.2 I can find very useful (as I thought at that time) validation rules - validwhen. I decide to replace Struts 1.1 with Struts 1.2.
I replaced struts.jar in my WEB-INF/lib folder and now I have exception:
java.lang.NullPointerException
org.apache.struts.taglib.TagUtils.retrieveMessageResources ....
When I give struts.jar(1.1 version) back - all work fine again.
I think that Struts 1.2 work with message resources in slightly different way than Struts 1.1. But what I should do to have system working with Struts 1.2 also.
Can anybody help me ?

I have found in logs the following stack trace ... It seems that problem in struts-config.xml parsing ...
2005-05-13 13:40:48 StandardContext[JSVS]Servlet /JSVS threw load() exception
javax.servlet.UnavailableException: Parsing error processing resource path /WEB-INF/struts-config.xml
     at org.apache.struts.action.ActionServlet.handleConfigException(ActionServlet.java:739)
     at org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServlet.java:715)
     at org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.java:670)
     at org.apache.struts.action.ActionServlet.init(ActionServlet.java:329)
     at javax.servlet.GenericServlet.init(GenericServlet.java:211)
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1019)
     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3991)
     at org.apache.catalina.core.StandardContext.start(StandardContext.java:4335)
     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
     at org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDeployer.java:903)
     at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)
     at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
     at org.apache.commons.digester.Rule.end(Rule.java:276)
     at org.apache.commons.digester.Digester.endElement(Digester.java:1058)
     at org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.java:76)
     at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
     at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
     at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
     at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
     at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
     at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
     at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
     at org.apache.commons.digester.Digester.parse(Digester.java:1567)
     at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:488)
     at org.apache.catalina.core.StandardHost.install(StandardHost.java:863)
     at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:482)
     at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
     at org.apache.catalina.startup.HostConfig.start(HostConfig.java:964)
     at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
     at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
     at org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
     at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
     at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
     at org.apache.catalina.core.StandardService.start(StandardService.java:476)
     at org.apache.catalina.core.StandardServer.start(StandardServer.java:2298)
     at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:324)
     at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:284)
     at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:422)

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Setting ViewObject Stored Procedure Where Clause Param from Struts Action

I adapted/used Steve's example to get stored procedure to populate my ViewObject. However, I could not retrieve any rows after passing whereClause value from Struts action. The param in execureQueryForCollection returns null.
What could be wrong. Thanks.
Here's my code.
ViewObjectImpl:
package org.adb.sls.model;
import java.math.BigDecimal;
import java.sql.CallableStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.sql.Types;
import oracle.jbo.JboException;
import oracle.jbo.domain.Date;
import oracle.jbo.domain.Number;
import oracle.jbo.server.DBTransaction;
import oracle.jbo.server.ViewObjectImpl;
import oracle.jbo.server.ViewRowImpl;
import oracle.jbo.server.ViewRowSetImpl;
import oracle.jdbc.driver.OracleCallableStatement;
import oracle.jdbc.driver.OracleTypes;
// --- File generated by Oracle ADF Business Components Design Time.
// --- Custom code may be added to this class.
public class ViewApplicableLoanTypesImpl extends ViewObjectImpl
* PLSQL block that will execute the REF_CURSOR
private static final String SQL =
"begin ? := sls_loan_types_pkg.get_applcbl_staff_lns_fn(?); end;";
* PLSQL block that will count the REF_CURSOR returned rows
private static final String COUNTSQL =
"begin ? := sls_loan_types_pkg.get_count_applcbl_staff_lns_fn(?); end;";
* This is the default constructor (do not remove)
public ViewApplicableLoanTypesImpl()
* Overridden framework method.
* Wipe out all traces of a built-in query for this VO
protected void create() {
getViewDef().setQuery(null);
getViewDef().setSelectClause(null);
setQuery(null);
* Overidden framework method
protected void executeQueryForCollection(Object qc, Object[] params, int noUserParams)
// input parameter is employee number
String employeeNumber = null;
if (params != null) {
employeeNumber = (String) params[0];
} else
System.out.println("param is null");
storeNewResultSet(qc,retrieveRefCursor(qc,employeeNumber));
super.executeQueryForCollection(qc, params, noUserParams);
protected ViewRowImpl createRowFromResultSet(Object qc, ResultSet rs)
* We ignore the JDBC ResultSet passed by the framework (null anyway) and
* use the resultset that we've stored in the query-collection-private
* user data storage
rs = getResultSet(qc);
* Create a new row to populate
ViewRowImpl r = createNewRowForCollection(qc);
try {
* Populate new row by attribute slot number for current row in Result Set
populateAttributeForRow(r,0, nullOrNewNumber(rs.getBigDecimal(1)));
populateAttributeForRow(r,1, nullOrNewNumber(rs.getBigDecimal(2)));
populateAttributeForRow(r,2, rs.getString(3));
populateAttributeForRow(r,3, nullOrNewNumber(rs.getBigDecimal(4)));
populateAttributeForRow(r,4, rs.getString(5));
catch (SQLException s) {
throw new JboException(s);
return r;
protected boolean hasNextForCollection(Object qc)
ResultSet rs = getResultSet(qc);
boolean nextOne = false;
try {
nextOne = rs.next();
* When were at the end of the result set, mark the query collection
* as "FetchComplete".
if (!nextOne) {
setFetchCompleteForCollection(qc, true);
* Close the result set, we're done with it
rs.close();
catch (SQLException s) {
throw new JboException(s);
return nextOne;
protected void releaseUserDataForCollection(Object qc, Object rs)
* Ignore the ResultSet passed in since we've created our own.
* Fetch the ResultSet from the User-Data context instead
ResultSet userDataRS = getResultSet(qc);
if (userDataRS != null) {
try {
userDataRS.close();
catch (SQLException s) {
/* Ignore */
super.releaseUserDataForCollection(qc, rs);
public long getQueryHitCount(ViewRowSetImpl viewRowSet)
Object[] params = viewRowSet.getParameters(true);
String id = (String)params[0];
CallableStatement st = null;
try {
st = getDBTransaction().createCallableStatement(COUNTSQL,DBTransaction.DEFAULT);
* Register the first bind parameter as our return value of type CURSOR
st.registerOutParameter(1,Types.NUMERIC);
* Set the value of the 2nd bind variable to pass id as argument
if (id == null) st.setNull(2,Types.VARCHAR);
else st.setString(2,id);
st.execute();
return st.getLong(1);
catch (SQLException s) {
throw new JboException(s);
finally {try {st.close();} catch (SQLException s) {}}
* Return a JDBC ResultSet representing the REF CURSOR return
* value from our stored package function.
private ResultSet retrieveRefCursor(Object qc,String id) {
CallableStatement st = null;
try {
st = getDBTransaction().createCallableStatement(SQL,DBTransaction.DEFAULT);
* Register the first bind parameter as our return value of type CURSOR
st.registerOutParameter(1,OracleTypes.CURSOR);
* Set the value of the 2nd bind variable to pass id as argument
if (id == null) st.setNull(2,Types.VARCHAR);
else st.setString(2,id);
st.execute();
ResultSet rs = ((OracleCallableStatement)st).getCursor(1);
* Make this result set use the fetch size from our View Object settings
rs.setFetchSize(getFetchSize());
return rs ;
catch (SQLException s) {
s.printStackTrace();
throw new JboException(s);
finally {try {st.close();} catch (SQLException s) {}}
* Store a new result set in the query-collection-private user-data context
private void storeNewResultSet(Object qc, ResultSet rs) {
ResultSet existingRs = getResultSet(qc);
// If this query collection is getting reused, close out any previous rowset
if (existingRs != null) {
try {existingRs.close();} catch (SQLException s) {}
setUserDataForCollection(qc,rs);
hasNextForCollection(qc); // Prime the pump with the first row.
* Retrieve the result set wrapper from the query-collection user-data
private ResultSet getResultSet(Object qc) {
return (ResultSet)getUserDataForCollection(qc);
* Return either null or a new oracle.jbo.domain.Date
private static Date nullOrNewDate(Timestamp t) {
return t != null ? new Date(t) : null;
* Return either null or a new oracle.jbo.domain.Number
private static Number nullOrNewNumber(BigDecimal b) {
try {
return b != null ? new Number(b) : null;
catch (SQLException s) { }
return null;
Struts Action
package org.adb.sls.view;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import oracle.jbo.ApplicationModule;
import oracle.jbo.ViewObject;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import oracle.adf.model.binding.DCDataControl;
import oracle.adf.model.bc4j.DCJboDataControl;
import oracle.jbo.html.BC4JContext;
public class IndexAction extends DefaultADFAction
protected ActionForward performActionLogic(ActionMapping mapping,
ActionForm form, HttpServletRequest request,
HttpServletResponse response)
throws Exception {
try {
ApplicationModule am = getApplicationModule("SLSApplicableLoanTypesDataControl", request);
if (am == null)
System.out.println("am is null");
ViewObject vo = am.findViewObject("ViewApplicableLoanTypes");
vo.setWhereClauseParam(0,request.getSession().getAttribute("SSO_EMPLOYEE_NUMBER"));
vo.executeQuery();
} catch (Exception e)
e.printStackTrace();
return mapping.findForward("success");
Struts Config
<form-beans>
<form-bean name="DataForm" type="oracle.adf.controller.struts.forms.BindingContainerActionForm"/>
</form-beans>
<action-mappings>
<action path="/index" className="oracle.adf.controller.struts.actions.DataActionMapping" type="org.adb.sls.view.IndexAction" name="DataForm" unknown="false">
<set-property property="modelReference" value="indexUIModel"/>
<forward name="success" path="/home.do"/>
</action>
<action path="/home" className="oracle.adf.controller.struts.actions.DataActionMapping" type="oracle.adf.controller.struts.actions.DataForwardAction" name="DataForm" parameter="/index.uix" unknown="true">
<set-property property="modelReference" value="indexUIModel"/>
</action>
</action-mappings>

I just found the solution. I've overridden setWhereClause method.
public void setWhereClauseParams(Object[] values)
ViewObjectImpl vo = (ViewObjectImpl) super.getViewObject();
vo.setWhereClauseParam(0,values[0]);
}

Calling DB from Struts

Hi All,
I would like to access Database from struts without using EJB, Pl. advice which architecture is best
Thanks

Dear dsn29:
There are basically 2 ways to call databases:
1. To call using JDBC directly
2. To call using a database pool connection
Using the 2nd one you can use:
a) Struts own connection pool,
b) the server application server connection pool if it has one,
c) a connection pool implementation ftrom a 3rd party like jakarta db connection pool.
Which one is the better one?
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Using the connection implementation that comes with the server like Sun App Server 8.1 Q12005, is that you have to install the driver in the domain/lib/ext directory, you have to define the connection correctly at the first time (the server must recognize it to show all the drivers parameters) or you will always get a bad ping. And there are several problems with the Sun's implementation that they haven't answer back. For me the connection pool was been a pain in the neck (just search from lorenzosjb username to see). Just look my last: http://forum.java.sun.com/thread.jspa?threadID=612144&tstart=30
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You can also go to http://www.objectsource.com/ where you can download a free book called Struts Best Practices that can help you
And you can www.theserverside.com and download Jakarta Struts Live and Servlets and JavaServer Pages: The J2EE Technology Web Tier for free: http://www.theserverside.com/books/addisonwesley/ServletsJSP/index.tss that can help you more.
So now I am also investigating, using Struts db implementation and installing the test web application in several java application servers to see if the implementation is really independant.
You I helped you, and good luck!
Regards,
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then I try with Struts the response is unsupported response content type text/html must be text/xml response was 401 Unauthorized

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closed

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Message was edited by:
pn24256

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4. And call you EJB method.
That's all you need to do.
Pls find below sample code.
1. MappingServiceLocalHome mappingServiceHome = (MappingServiceLocalHome) ServiceLocator.lookupLocalHome("MappingServiceLocalHome", MappingServiceLocalHome.class);
2. MappingServiceLocal service = mappingServiceHome.create();
3. latLngvo = service.getGeocodedAddress(address, zipCode, city, stateCode, country, countyName);
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CHANGED FROM THIS:
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//]]>
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TO THIS:
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//
//]]>
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org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
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org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
java.lang.Thread.run(Thread.java:595)
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hanks for the reply.
All class files are created during build.
I even deleted all the existing ones in tomcat/work folder.
So the classes are up to date.
Any other pointers?
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<%@ taglib uri="/tags/struts-bean" prefix="bean" %>
to
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean" %>
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The java deprecations shows Resources.getLocale as deprecated. Is that a problem,
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izzy75 wrote:
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Thanx Pradeep

Hi folks, Prsently I have an application which is
following the Struts architecture.Now I have to
migrate it to EJB.What all are the major chnages I
have to incorporate?? Any usefull links other than the
Sun J2EE Blueprints??That's something I'm starting to wonder about. All you should have to do is call the EJBs in your Action class - theoretically.
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On top of that, I'm trying to get the J2EE server to run as a WinNT service using JSL. That's got it's own problems.

From Struts 1.1 to Struts 1.2

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