GetServletContext().getInitParameter("param_name")

Hi,
I am trying to get a parameter from the web.xml file.
In the Web.xml file I enter the following:
<context-param>
<param-name>driver</param-name>
<param-value>sun.jdbc.odbc.JdbcOdbcDriver</param-value>
</context-param>
in my servlet I write
getServletContext().getInitParameter("driver")
While compiling the program I get the following error message:
Error: E:\VisualCafe\Projects\luxwood\ClientsServlet.java(69): Method getInitParameter(java.lang.String) not found in javax.servlet.ServletContext
What should I do
Tnx Eli

Sorry, my mistake. The syntax you stated was correct.
It seems there may be a problem with your servlet.jar. Get the latest copy of Tomcat 3.2/3 and try again.
Anthony

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WL6.1sp3 problem with getServletContext?

          I have just installed WL6.1sp3 and tried to move a web application from Tomcat
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          Can anyone tell me why this is happening and how I can fix this?
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AFAIK there is no getServletContext() method in javax.servlet.Servlet.
          change your JSP to
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          "Chris L" <[email protected]> wrote in message
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          >
          > I have just installed WL6.1sp3 and tried to move a web application from
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          > 4.02 to WebLogic. When I access a jsp, I get the following compile error
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SSO login for custom BO SDK Application

Hi,
I am trying to build custom application using BO SDK. Requirement is application should be SSO configured.
Below is my sample code of JSP
<%@ page import = "com.crystaldecisions.sdk.framework.ISessionMgr"%>
<%@ page import = "com.crystaldecisions.sdk.framework.IEnterpriseSession"%>
<%@ page import = "com.crystaldecisions.sdk.exception.SDKException"%>
<%@ page import = "com.crystaldecisions.sdk.occa.infostore.IInfoStore"%>
<%@ page import="com.crystaldecisions.sdk.framework.CrystalEnterprise" %>
<%@ page import="org.ietf.jgss.GSSCredential"%>
<%@ page import="org.ietf.jgss.GSSManager"%>
<%@ page import="com.businessobjects.sdk.credential.CredExtractor"%>
<%
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%>
i am redirecting to home.jsp and on home.jsp page i am just displaying userID whish is set in above code
I am deploying my application on server which is SSO enable (Vintela)i have made the necessary changes in web.xml file also
below is my web.xml file
<filter>
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          <init-param>
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          <init-param>
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          <init-param>
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<filter-mapping>
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but i am getting error saying VSJ authentication was not performed for this request.
can any one help me ouot where i am going wrong
Edited by: Asraf_Shaikh on Aug 25, 2011 6:39 PM

Hi ivan,
since i was busy with something else, so i could not logging to the forum and reply on time, anyways if your problem is still not solved.
then follow the approach ( this is for java only)
1. see if you can access infoview application , if yes then check web.xml file and try to uncomment the comment elements in web.xml file.
2. check the jar file needed for sso , like credential.jar. you can take all the jar file from infoview application
below is my code for sso login( only the important things i am putting rest you can manage)
imports
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.ietf.jgss.GSSCredential;
import org.ietf.jgss.GSSManager;
import com.businessobjects.sdk.credential.CredExtractor;
import com.crystaldecisions.sdk.framework.CrystalEnterprise;
import com.crystaldecisions.sdk.framework.IEnterpriseSession;
import com.crystaldecisions.sdk.occa.infostore.IInfoStore;
code
GSSCredential myCredential = null;
GSSManager myManager = null;
CredExtractor myCredExtractor = new CredExtractor(request);
myCredential = myCredExtractor.GetCredential();
myManager = myCredExtractor.GetManager();
String myCmsName = getServlet().getServletContext().getInitParameter("cms.default");
IEnterpriseSession myIEnterpriseSession = CrystalEnterprise.getSessionMgr().logon(myCredential,myManager, myCmsName, SEC_WINAD);
IInfoStore myIInfoStore = (IInfoStore) myIEnterpriseSession.getService(PortalConstants.EMPTYSTRING, PortalConstants.INFOSTORE);
you can put try catch block -
web.xml file
     <filter>
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          <init-param>
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above code is working , so if you can follow the same,it should work for you also.and it for secWinad and sso is vintela
let me know the status

Get init parameter from JSP

Hello folks
First of all, I want to say sorry for my English.
Well, I have one jsp file and I want to pass one value from web.xml file to it but I don't know how
I also did the same thing with servlet and it's OK, I used function getInitParameter in ServletConfig and modified file web.xml in Tomcat 3.2.
Please help me
Thanks in advance.

Hi,
For example, if your web.xml has something like:
<context-param>
<param-name>testParam</param-name>
<param-value>[email protected]</param-value>
</context-param>
You can access the "testParam" init param from within your JSP scriptlet as:
String value = getServletContext().getInitParameter("testParam");
where "testParam" matches the <param-name> element of one of these initialization parameters.
Hope that helps.
Regards,
Senthil Babu
Developer Technical Support
SUN Microsystems
http://www.sun.com/developers/support/

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Hi All,
I want to access a local file from a JSP. On click of the link the local file should open. The location of the local file is
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and the hyper link on the JSP shows
file:///O:/VWS00000000000000000001/REPORT_FRAGMENTS/Title1.doc
somehow the file does not open from the JSP page but it opens from the browser if I type
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regards,
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if you'd like to show the real path to the user, use simply an ftp server !
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ORA-00911 Error code in JDBC where no special character is used - Oracle 10

Hi,
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prepStatement.executeUpdate();
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SEVERE: FinalSubscriber: Area 4B: Exception occured
java.sql.SQLException: ORA-00911: invalid character
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     at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:743)
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Thanks,
Nguessan

buddy, why don't you use a stored procedure and make your update, i hate that upkeeping.
callablestatement and the power of Plsql are ur saviours.
regards, djoudi.

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<%@ page import="java.io.*,javax.servlet.*,java.util.* " contentType="text/html" %>
<html>
finally we have success ...
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<%@ page ... contentType=text/html%>
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<%
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response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition","attachment; filename=\""+filename+"\";");
int iRead;
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I am writing a standalone web appplication for rss (xml) creation where i am having jsp servlets class etc.
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stored it as string passed as parametr to other class where i need to call it but there i am getting null pointer exception which says not initialized.
even what i have written in web.xml is here:
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<param-value>c:\\rsshandler.xml</param-value>
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<servlet-class>src.Startup</servlet-class>
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<param-value>/WEB-INF/rss-config.xml</param-value>
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</servlet>
<servlet-mapping>
<servlet-name>Startup</servlet-name>
<url-pattern>/Startup</url-pattern>
<load-on-startup>1</load-on-startup>
</servlet-mapping>
i tried what i know or understood but its not working.
one more thing i have doneis:created rss.properties files in web-inf
lines added are
rssfeed=c:\\rsshandler.xml
but even i am not getting this why
or what sholud i do here.
this thing needs to be configurablewhich we can change later easily.
any suggestions.
thanks
vijendra

Ben -
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<servlet>
<servlet-name>InitServlet</servlet-name>
<servlet-class>package1.InitServlet</servlet-class>
<init-param>
<param-name>message</param-name>
<param-value>Hello From Initialization Parameter</param-value>
</init-param>
</servlet>
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public void init(ServletConfig config) throws ServletException
super.init(config);
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<context-param>
<param-name>hello</param-name>
<param-value>hi</param-value>
</context-param>
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Lynn
Java Tools Team

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import org.w3c.dom.* ;
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import java.io.IOException;
import java.io.InputStream;
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import org.apache.poi.hssf.usermodel.HSSFSheet;
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import org.apache.poi.hssf.usermodel.HSSFRow;
public class CescoreUploadServlet extends baseHttpServlet
     private DataSource cesDS = null;
     public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
          doPost(req, res);
     public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
          String targetPage = null;
          File f = null;
          System.out.println("Upload Controller");
          HttpSession session = req.getSession(true);
          try
               if(cesDS == null){
                    cesDS = new JNDIDataSource(getServletContext().getInitParameter(Constants.DATA_SOURCE_NAME));
               CesRepository cRep = new CesRepository(cesDS);
               if (session.getAttribute("DataContainerInfo") == null) {
                    System.out.println("Initializing DataContainerInfo");
                    DataContainer DataContainer = new DataContainer();
                    cRep.setInitialParameters(DataContainer);
                    session.setAttribute("DataContainerInfo",DataContainer);
               else System.out.println("DataContainerInfo is available");
               UserInfo userInfo = null;
               String login_id = req.getRemoteUser();
               if(session.getAttribute("UserID") != null) login_id = (String)session.getAttribute("UserID");
               if(session.getAttribute("userProfile") == null ) session.setAttribute("userProfile", cRep.getUserInfo(login_id));
               userInfo = (UserInfo)session.getAttribute("userProfile");
               System.out.println("<<<<<< userInfo contains : "+userInfo.getHrID()+" >>>>>>");
               String projIdValue = null;
               String msg = null;
               boolean isMultipart = FileUpload.isMultipartContent(req);
               if(isMultipart){
                    System.out.println("is MultiPart");
                    DiskFileUpload upload = new DiskFileUpload();
                    List fileList = upload.parseRequest(req);
                    InputStream uploadedFileStream = null;
                    String uploadedFileName = null;
                    ArrayList impArray = new ArrayList();
                    Iterator iter = fileList.iterator();
                    while (iter.hasNext()) {
                         System.out.println("inside while");
                         FileItem item = (FileItem) iter.next();
                         if (!item.isFormField()) {
                              System.out.println("item is not form field");
                              if (item.getSize() < 1)
                                   throw new Exception("No file was uploaded");
                              else
                                   uploadedFileName = item.getName();
                                   System.out.println("uploaded file name "+uploadedFileName);
                                   System.out.println("uploaded file size is "+item.getSize());
                                   uploadedFileStream = item.getInputStream();
                                   System.out.println("uploaded input stream available size is "+uploadedFileStream.available());
                         else
                              System.out.println("item is form field");
                              String key     = item.getFieldName();
                              String value = item.getString();
                              System.out.println("key is"+key);
                              System.out.println("value is"+value);
                              if(key.equals("projectId2")){
                                   projIdValue = value;
                    System.out.println("outside while");
                    POIFSFileSystem fs = new POIFSFileSystem(uploadedFileStream);
                    System.out.println("got POIFSFileSystem");//this is been printed in logs
                    HSSFWorkbook wb = new HSSFWorkbook(fs);//it is breaking over here
                    System.out.println("got HSSFWorkbook");//this is not been printed in logs
                    HSSFSheet sheet = wb.getSheetAt(0);
                    System.out.println("got HSSFSheet");
                    Iterator rows = sheet.rowIterator();
                    if(rows.hasNext()){
                    while( rows.hasNext() ) {
                         System.out.println("rows iteration");
                         HSSFRow row = (HSSFRow) rows.next();
                         Iterator cells = row.cellIterator();
                         while( cells.hasNext() ) {
                              System.out.println("cell iteration");
                              HSSFCell cell = (HSSFCell) cells.next();
                              HashMap hm = new HashMap();//if everything is fine i'll use this hashmap to store values
                         System.out.println("CES UPLOAD.SERVLET. After adding");
                         msg = "Attendees have been added successfully";
                         req.setAttribute("msgText", msg);
                         targetPage = "/ces_disp.jsp";
                    else
                         throw new Exception("The Excel Sheet Uploaded has no entries. Please check and try again");
               else{
                    throw new Exception("The Form is not Multipart");
          catch (Exception e)
               System.out.println("CES UPLOAD.SERVLET.EXCEPTION ::: Exception");
               targetPage = "/ces_disp.jsp";
               if(e != null) req.setAttribute("msgText", e.getMessage());
               else req.setAttribute(Constants.EXCEPTION_ATTR_NAME, new Exception("Unknown Exception"));
               e.printStackTrace();
          finally{
               System.out.println("CES UPLOAD.SERVLET. ::: Finally");
               ServletContext stx = getServletConfig().getServletContext();
               RequestDispatcher dispatcher = sCx.getRequestDispatcher(targetPage);
               dispatcher.forward(req, res);
Message was edited by: Noufal
Noufal_k
Message was edited by:
Noufal_k

import org.w3c.dom.* ;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import jxl.*;
import org.apache.commons.fileupload.*;
import org.apache.commons.fileupload.disk.*;
import org.apache.commons.fileupload.servlet.*;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.poi.hssf.usermodel.HSSFCell;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.usermodel.HSSFRow;
public class CescoreUploadServlet extends baseHttpServlet
private DataSource cesDS = null;
public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
doPost(req, res);
public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
//including only relevant code
String targetPage = null;
System.out.println("Upload Controller");
HttpSession session = req.getSession(true);
try
String projIdValue = null;
String msg = null;
boolean isMultipart = FileUpload.isMultipartContent(req);
if(isMultipart){
System.out.println("is MultiPart");
DiskFileUpload upload = new DiskFileUpload();
List fileList = upload.parseRequest(req);
InputStream uploadedFileStream = null;
String uploadedFileName = null;
Iterator iter = fileList.iterator();
while (iter.hasNext()) {
System.out.println("inside while");
FileItem item = (FileItem) iter.next();
if (!item.isFormField()) {
System.out.println("item is not form field");
if (item.getSize() < 1)
throw new Exception("No file was uploaded");
else
uploadedFileName = item.getName();
System.out.println("uploaded file name "+uploadedFileName);//printing c:/excelsheets/fileToUpload.xls
System.out.println("uploaded file size is "+item.getSize());//printing size is 15872
uploadedFileStream = item.getInputStream();
System.out.println("uploaded input stream available size is "+uploadedFileStream.available());//printing available input stream size is 15872
else
System.out.println("item is form field");
String key = item.getFieldName();
String value = item.getString();
System.out.println("key is"+key);
System.out.println("value is"+value);
if(key.equals("projectId2")){
projIdValue = value;
System.out.println("outside while");
POIFSFileSystem fs = new POIFSFileSystem(uploadedFileStream);
System.out.println("got POIFSFileSystem");//this is been printed in logs
HSSFWorkbook wb = new HSSFWorkbook(fs);//it is breaking over here
System.out.println("got HSSFWorkbook");//this is not been printed in logs
HSSFSheet sheet = wb.getSheetAt(0);
System.out.println("got HSSFSheet");
Iterator rows = sheet.rowIterator();
if(rows.hasNext()){
while( rows.hasNext() ) {
System.out.println("rows iteration");
HSSFRow row = (HSSFRow) rows.next();
Iterator cells = row.cellIterator();
while( cells.hasNext() ) {
System.out.println("cell iteration");
HSSFCell cell = (HSSFCell) cells.next();
HashMap hm = new HashMap();//if everything is fine i'll use this hashmap to store values
System.out.println("CES UPLOAD.SERVLET. After adding");
msg = "Attendees have been added successfully";
req.setAttribute("msgText", msg);
targetPage = "/ces_disp.jsp";
else
throw new Exception("The Excel Sheet Uploaded has no entries. Please check and try again");
else{
throw new Exception("The Form is not Multipart");
catch (Exception e)
System.out.println("CES UPLOAD.SERVLET.EXCEPTION ::: Exception");
targetPage = "/ces_disp.jsp";
if(e != null) req.setAttribute("msgText", e.getMessage());
else req.setAttribute(Constants.EXCEPTION_ATTR_NAME, new Exception("Unknown Exception"));
e.printStackTrace();
finally{
System.out.println("CES UPLOAD.SERVLET. ::: Finally");
ServletContext stx = getServletConfig().getServletContext();
RequestDispatcher dispatcher = stx.getRequestDispatcher(targetPage);//throwing null pointer exception for this line
dispatcher.forward(req, res);
}

Support Dynamic JDBC Credentials

Can I use something similar in JDeveloper 11g like in this example http://www.oracle.com/technology/products/jdev/howtos/10g/dynamicjdbchowto.html

Here is the class
package userinterface;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Iterator;
import java.util.Map;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.servlet.jsp.JspTagException;
import oracle.adf.model.servlet.ADFBindingFilter;
import oracle.adf.share.ADFContext;
import oracle.jbo.client.Configuration;
import oracle.jbo.common.JBOClass;
import oracle.jbo.common.ampool.ApplicationPoolException;
public class DynamicJDBCBindingFilter extends ADFBindingFilter {
public DynamicJDBCBindingFilter() {
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException,
ServletException {
HttpServletRequest svrRequest = (HttpServletRequest)request;
HttpSession session = svrRequest.getSession(true);
if (!isLoggedIn(session)) {
if (!isLoginRequest(svrRequest)) {
String method = svrRequest.getMethod();
String requestUri = svrRequest.getRequestURI();
if (method.equalsIgnoreCase("GET") &&
requestUri.endsWith(loginPageRedirectName())) {
super.doFilter(request, response, chain);
} else {
forwardToLoginPage(request, response);
} else {
try {
String usrName = request.getParameter(USERNAME_PARAM);
String pswd = request.getParameter(PASSWORD_PARAM);
* If you need to support dynamically changing the JDBC URL
* (for example to support changing which database instance
* you are pointing at on the fly, then you need to change
* the line of code below to assign a non-null value to the
* jdbcURL variable. You would need to take the user-supplied
* information and formulate a valid JDBC connection URL connection
* string (without username and password) that looks like this:
* jdbc:oracle:thin:@localhost:1521:ORCL
* machine port SID
* and then set this the jdbcURL variable to this value.
String jdbcURL = "jdbc:oracle:thin:@10.3.3.68:1521:des10g";
if (usrName == null || usrName.length() == 0 ||
pswd == null || pswd.length() == 0) {
throw new BlankUserNameOrPassword();
session.setAttribute(Configuration.DB_USERNAME_PROPERTY,
usrName);
session.setAttribute(Configuration.DB_PASSWORD_PROPERTY,
pswd);
if (jdbcURL != null) {
session.setAttribute(Configuration.DB_CONNECT_STRING_PROPERTY,
jdbcURL);
super.doFilter(request, response, chain);
if (request.getAttribute(FAILED_ATTR) == null) {
session.setAttribute(LOGGEDIN_ATTR, NON_NULL_VALUE);
} catch (Exception e) {
if (isFailedLoginException(e)) {
signalFailedLoginAttempt(svrRequest);
redirectToLoginPageOnLogonError(request, response);
} else if (e instanceof ServletException) {
throw (ServletException)e;
} else {
e.printStackTrace();
throw new ServletException(e);
} else {
super.doFilter(request, response, chain);
* Encapsulate detecting if the exception thrown
* represents a failed login attempt.
private boolean isFailedLoginException(Exception e) {
* In 9.0.5.2, our eager AM acquisition will
* cause the application pool exception to appear
* without being wrapped.
if (e instanceof ApplicationPoolException ||
e instanceof BlankUserNameOrPassword) {
return true;
} else if (e instanceof ServletException) {
Throwable rootCause = ((ServletException)e).getRootCause();
* In 10.1.2 Struts, our lazy AM acquisition causes
* the failed database login to be wrapped in a
* ServletException that contains the ApplicationPoolException
if (rootCause instanceof ApplicationPoolException) {
return true;
* In 10.1.2 JSP Model 1, our lazy AM acquisition causes
* the failed database login to be wrapped in a
* ServletException that contains a JspTagException.
* The JspTagException does not wrap the original error,
* but only encapsulate the original errors getMessage() value.
if (rootCause instanceof JspTagException) {
String errMsg = ((JspTagException)rootCause).getMessage();
if (errMsg != null && errMsg.startsWith(APP_POOL_ERR_MSG)) {
return true;
return false;
* Forwards control to the login page.
private void forwardToLoginPage(ServletRequest request,
ServletResponse response) throws ServletException,
IOException {
HttpServletResponse responseHttp = (HttpServletResponse)response;
responseHttp.sendRedirect(loginPageRedirectName());
markResponseCompleteIfUsingJSF();
private void redirectToLoginPage(ServletRequest request,
ServletResponse response) throws ServletException,
IOException {
HttpServletResponse responseHttp = (HttpServletResponse)response;
responseHttp.sendRedirect(loginPageRedirectName());
markResponseCompleteIfUsingJSF();
private void redirectToLoginPageOnLogonError(ServletRequest request,
ServletResponse response) throws ServletException,
IOException {
HttpServletResponse responseHttp = (HttpServletResponse)response;
responseHttp.sendRedirect(loginPageRedirectName((HttpServletRequest)request) + "?failed=true");
markResponseCompleteIfUsingJSF();
* Signal a failed login attempt
private void signalFailedLoginAttempt(HttpServletRequest request) {
HttpSession session = request.getSession(true);
session.setAttribute(LOGGEDIN_ATTR, null);
request.setAttribute(FAILED_ATTR, NON_NULL_VALUE);
session.invalidate();
* If we are running in a Faces environment, invoke
* the FacesContext.responseComplete() method after
* the session invalidate. We use Java reflection
* so that our code can still work in a Non-Faces
* environment, too.
private void markResponseCompleteIfUsingJSF() {
try {
Class c = JBOClass.forName("javax.faces.context.FacesContext");
Method m = c.getMethod("getCurrentInstance", null);
Object obj = m.invoke(null, null);
m = c.getMethod("responseComplete",null);
m.invoke(obj,null);
} catch (InvocationTargetException ex) {
throw new RuntimeException(ex);
} catch (IllegalAccessException ex) {
throw new RuntimeException(ex);
} catch (NoSuchMethodException ex) {
throw new RuntimeException(ex);
} catch (ClassNotFoundException ex) {
// Ignore, we're not running in a faces context.
* Returns true if user is currently logged in
private boolean isLoggedIn(HttpSession session) {
return session.getAttribute(LOGGEDIN_ATTR) != null;
* Returns true if the current request is a login request.
private boolean isLoginRequest(HttpServletRequest request) {
return request.getParameter(IS_LOGIN_PAGE_PARAM) != null &&
request.getMethod().equalsIgnoreCase("POST");
private static final String LOGIN_PAGE_REDIRECT_PARAM = "RedirectToLogin";
private static final String FACES_URL_PATTERN_PARAM = "FacesURLPattern";
private static final String LOGGEDIN_ATTR = "loggedin";
private static final String FAILED_ATTR = "failed";
private static final String USERNAME_PARAM = "form:username";
private static final String PASSWORD_PARAM = "form:password";
private static final String IS_LOGIN_PAGE_PARAM = "form:_loginpage";
private static final String NON_NULL_VALUE = "x";
private static final String APP_POOL_ERR_MSG = "JBO-30003";
private static String loginPageRedirectName = null;
private String facesURLPattern = null;
private String loginPageRedirectName() {
return loginPageRedirectName;
private String loginPageRedirectName(HttpServletRequest request) {
if (facesURLPattern != null) {
if (request.getRequestURI().indexOf(facesURLPattern) == -1) {
return facesURLPattern+loginPageRedirectName;
return loginPageRedirectName;
public void init(FilterConfig filterConfig) throws ServletException {
super.init(filterConfig);
loginPageRedirectName =
filterConfig.getServletContext().getInitParameter(LOGIN_PAGE_REDIRECT_PARAM);
facesURLPattern =
filterConfig.getServletContext().getInitParameter(FACES_URL_PATTERN_PARAM);
}

Displaying xml content in the browser

Hi,
In my application i am generating an XML content which i was storing into a file. Now as per the new requirement, this xml content needs to be displayed in the browser. (The way it gets displayed when we double click on an xml file).
Can some one plz tel me how to do this? I am using the jsp/servlet architechture..? plz help
Thanx

Program 1
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SendXml extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    //get the 'file' parameter
    String fileName = (String) request.getParameter("file");
    if (fileName == null || fileName.equals(""))
      throw new ServletException(
          "Invalid or non-existent file parameter in SendXml servlet.");
    // add the .doc suffix if it doesn't already exist
    if (fileName.indexOf(".xml") == -1)
      fileName = fileName + ".xml";
    String xmlDir = getServletContext().getInitParameter("xml-dir");
    if (xmlDir == null || xmlDir.equals(""))
      throw new ServletException(
          "Invalid or non-existent xmlDir context-param.");
    ServletOutputStream stream = null;
    BufferedInputStream buf = null;
    try {
      stream = response.getOutputStream();
      File xml = new File(xmlDir + "/" + fileName);
      response.setContentType("text/xml");
      response.addHeader("Content-Disposition", "attachment; filename="
          + fileName);
      response.setContentLength((int) xml.length());
      FileInputStream input = new FileInputStream(xml);
      buf = new BufferedInputStream(input);
      int readBytes = 0;
      while ((readBytes = buf.read()) != -1)
        stream.write(readBytes);
    } catch (IOException ioe) {
      throw new ServletException(ioe.getMessage());
    } finally {
      if (stream != null)
        stream.close();
      if (buf != null)
        buf.close();
public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    doGet(request, response);
Program 2
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class ResourceServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    //get web.xml for display by a servlet
    String file = "/WEB-INF/web.xml";
    URL url = null;
    URLConnection urlConn = null;
    PrintWriter out = null;
    BufferedInputStream buf = null;
    try {
      out = response.getWriter();
      url = getServletContext().getResource(file);
      //set response header
      response.setContentType("text/xml");
      urlConn = url.openConnection();
      //establish connection with URL presenting web.xml
      urlConn.connect();
      buf = new BufferedInputStream(urlConn.getInputStream());
      int readBytes = 0;
      while ((readBytes = buf.read()) != -1)
        out.write(readBytes);
    } catch (MalformedURLException mue) {
      throw new ServletException(mue.getMessage());
    } catch (IOException ioe) {
      throw new ServletException(ioe.getMessage());
    } finally {
      if (out != null)
        out.close();
      if (buf != null)
        buf.close();
public void doPost(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    doGet(request, response);
}Have fun

Sending an e-mail using java

Hi,
I am sending an e-mail using java. It works fine, but I wanted to know if there is any possibility to attach a document, without using a File object. Because I have to write the File object and then delete it at the end. I would like to know if I can use for example a byte [], or something else.
Thank you very much.
This is my code, if that helps.
public static void sendWithAttach(String p_sender, String p_receiver, String p_subject,
String p_comment, int p_nombrePiecesJoints, HashMap<String, byte[]> p_files) {
Properties props = System.getProperties();
props.put("mail.smtp.host", Solapcore.getCurrent().getServletConfig().getServletContext().getInitParameter("SMTP"));
Session session = Session.getDefaultInstance(props, null);
MimeMessage sender = new MimeMessage(session);
MimeBodyPart mbp1 = new MimeBodyPart();
Multipart mp = new MimeMultipart();
List<File> listeFiles = new ArrayList<File>();
try {
//On assigne to, from, subject, body, priority
sender.setRecipients(javax.mail.Message.RecipientType.TO,
InternetAddress.parse(p_receiver, false));
sender.setFrom(new InternetAddress(p_sender));
sender.setSubject(p_subject);
mbp1.setText(p_comment);
//sender.setPriority(0);
mp.addBodyPart(mbp1);
//On attache les documents
for(Map.Entry<String, byte[]> entry : p_files.entrySet()) {
MimeBodyPart mbp2 = new MimeBodyPart();
String fileName = entry.getKey();
byte [] dataFile = entry.getValue();
File file = new File(fileName);
FileOutputStream fos = new FileOutputStream(file);
fos.write(dataFile);
mbp2.attachFile(file);
mbp2.setFileName(fileName);
mp.addBodyPart(mbp2);
listeFiles.add(file);
sender.setContent(mp);
Transport.send(sender);
}catch(MessagingException mex) {
mex.printStackTrace();
}catch(FileNotFoundException fnf) {
fnf.printStackTrace();
}catch(IOException ioe) {
ioe.printStackTrace();
}finally {
Iterator<File> itListeFiles = listeFiles.iterator();
while(itListeFiles.hasNext()) {
File tempFile = (File)itListeFiles.next();
tempFile.delete();
}

Thank you very much.
   public static void sendWithAttach(String p_sender, String p_receiver, String p_subject,
      String p_comment, int p_nombrePiecesJoints, HashMap<String, byte[]> p_files) {
    Properties props = System.getProperties();
    props.put("mail.smtp.host", Solapcore.getCurrent().getServletConfig().getServletContext().getInitParameter("SMTP"));
    Session session = Session.getDefaultInstance(props, null);
    MimeMessage sender = new MimeMessage(session);
    MimeBodyPart mbp1 = new MimeBodyPart();
    Multipart mp = new MimeMultipart();
    List<File> listeFiles = new ArrayList<File>();
    try {
      //On assigne to, from, subject, body, priority
      sender.setRecipients(javax.mail.Message.RecipientType.TO,
          InternetAddress.parse(p_receiver, false));
      sender.setFrom(new InternetAddress(p_sender));
      sender.setSubject(p_subject);
      mbp1.setText(p_comment);
      //sender.setPriority(0);
      mp.addBodyPart(mbp1);
      //On attache les documents
      for(Map.Entry<String, byte[]> entry : p_files.entrySet()) {
        MimeBodyPart mbp2 = new MimeBodyPart();
        String fileName = entry.getKey();
        byte [] dataFile = entry.getValue();
        File file = new File(fileName);
        FileOutputStream fos = new FileOutputStream(file);
        fos.write(dataFile);
        mbp2.attachFile(file);
        mbp2.setFileName(fileName);
        mp.addBodyPart(mbp2);
        listeFiles.add(file);
      sender.setContent(mp);
      Transport.send(sender);
    }catch(MessagingException mex) {
      mex.printStackTrace();
    }catch(FileNotFoundException fnf) {
      fnf.printStackTrace();
    }catch(IOException ioe) {
      ioe.printStackTrace();
    }finally {
      Iterator<File> itListeFiles = listeFiles.iterator();
      while(itListeFiles.hasNext()) {
        File tempFile = (File)itListeFiles.next();
        tempFile.delete();
    }

Add file config for hole application?

Hi everyone,
Is there any one worked with build file config for hole fusion adf application? It is similar with web.config in .NET ASP web site. I think in jdeveloper, we can use web.xml for add some parameter but don't know how to read this parameter?
Any help is appreciate!
Thank.

User, please tell us your jdeveloper version!
In general you can read context or innit parameters from web.xml.
You get to them via the servlet context
String databaseHost =getServletContext().getInitParameter("database.host");
And to get to the servlet context use
FacesContext ctx = FacesContext.getCurrentInstance(); ServletContext servletContext = (ServletContext) ctx.getExternalContext().getContext();
Timo

JSP - Bean - Scope Issue with ResultSet

Hi there,
I have a JSP page that uses a Bean to get ResultSets from a db. My methods return ResultSets, but they seem to get out of scope on the JSP page when I try to use them. I'm not sure why. I have included 2 snippets below one that works and one that doesn't. I get a java.lang.null exception when the page is run. Not sure how or why the variable seems to go out of scope? I can work around it, but I would rather find out why this is happening.
This one fails:
<%@ page errorPage="error.jsp" %>
<%@ page import="utils.LookupBean" %>
<%@ page import="java.sql.ResultSet" %>
<%
try{
%>
<html>
<head>
<title>lookup</title>
</head>
<body>
<jsp:useBean id="lookup" class="utils.LookupBean">
<%
ResultSet roem = lookup.getOEMDropdown();
//open db conn
lookup.openIlprod();
if(roem!=null){
%>
OEM:
<select name="OEM">
<%
while(roem.next()){
%>
<option value="<%=roem.getString("id")%>"><%=roem.getString("name")%></option>
<%
%>
</select><br><br>
<%
else{
out.println("OEM:  no records<br><br>");
%>
</jsp:useBean>
</body>
</html>
<%
catch(Exception e){
     //log to Tomcat
%>
This one works....why??
<%@ page errorPage="error.jsp" %>
<%@ page import="utils.LookupBean" %>
<%@ page import="java.sql.ResultSet" %>
<%
try{
%>
<html>
<head>
<title>lookup</title>
</head>
<body>
<jsp:useBean id="lookup" class="utils.LookupBean">
<%
//open db conn
lookup.openIlprod();
ResultSet roem = lookup.getOEMDropdown();
if(roem!=null){
%>
OEM:
<select name="OEM">
<%
while(roem.next()){
%>
<option value="<%=roem.getString("id")%>"><%=roem.getString("name")%></option>
<%
%>
</select><br><br>
<%
else{
out.println("OEM:  no records<br><br>");
%>
</jsp:useBean>
</body>
</html>
<%
catch(Exception e){
     //log to Tomcat
%>

<%@ page errorPage="error.jsp" %>
<%@ page import="utils.LookupBean" %>
<%@ page import="java.sql.ResultSet" %>
<%
String ilprod_db_user;
String ilprod_db_pass;
String tedsi_prod_owner;
String nsp_portal_owner;
String iladmin_owner;
String ilprod_db_host;
String ilprod_db_port;
String ilprod_db_service;
try{
     //get the ilprod_db_user from the deployment descriptor
     ilprod_db_user = (String)getServletContext().getInitParameter("ilprod_db_user");
     //ensure a value is present
     if(ilprod_db_user==null||ilprod_db_user.equals("")){
     throw new ServletException("Error retrieving ilprod_db_user from deployment descriptor. - ilprod_db_user is null or an empty string");
     //get the ilprod_db_pass from the deployment descriptor
     ilprod_db_pass = (String)getServletContext().getInitParameter("ilprod_db_pass");
     //ensure a value is present
     if(ilprod_db_pass==null||ilprod_db_pass.equals("")){
     throw new ServletException("Error retrieving ilprod_db_pass from deployment descriptor. - ilprod_db_pass is null or an empty string");
     //get the tedsi_prod_owner from the deployment descriptor
     tedsi_prod_owner = (String)getServletContext().getInitParameter("tedsi_prod_owner");
     //ensure a value is present
     if(tedsi_prod_owner==null||tedsi_prod_owner.equals("")){
     throw new ServletException("Error retrieving tedsi_prod_owner from deployment descriptor. - tedsi_prod_owner is null or an empty string");
     //get the nsp_portal_owner from the deployment descriptor
     nsp_portal_owner = (String)getServletContext().getInitParameter("nsp_portal_owner");
     //ensure a value is present
     if(nsp_portal_owner==null||nsp_portal_owner.equals("")){
     throw new ServletException("Error retrieving nsp_portal_owner from deployment descriptor. - nsp_portal_owner is null or an empty string");
     //get the iladmin_owner from the deployment descriptor
     iladmin_owner = (String)getServletContext().getInitParameter("iladmin_owner");
     //ensure a value is present
     if(iladmin_owner==null||iladmin_owner.equals("")){
     throw new ServletException("Error retrieving iladmin_owner from deployment descriptor. - iladmin_owner is null or an empty string");
     //get the ilprod_db_host from the deployment descriptor
     ilprod_db_host = (String)getServletContext().getInitParameter("ilprod_db_host");
     //ensure a value is present
     if(ilprod_db_host==null||ilprod_db_host.equals("")){
     throw new ServletException("Error retrieving ilprod_db_host from deployment descriptor. - ilprod_db_host is null or an empty string");
     //get the ilprod_db_port from the deployment descriptor
     ilprod_db_port = (String)getServletContext().getInitParameter("ilprod_db_port");
     //ensure a value is present
     if(ilprod_db_port==null||ilprod_db_port.equals("")){
     throw new ServletException("Error retrieving ilprod_db_port from deployment descriptor. - ilprod_db_port is null or an empty string");
     //get the ilprod_db_service from the deployment descriptor
     ilprod_db_service = (String)getServletContext().getInitParameter("ilprod_db_service");
     //ensure a value is present
     if(ilprod_db_service==null||ilprod_db_service.equals("")){
     throw new ServletException("Error retrieving ilprod_db_service from deployment descriptor. - ilprod_db_service is null or an empty string");
%>
<html>
<head>
<title>lookup</title>
</head>
<body>
<jsp:useBean id="lookup" class="utils.LookupBean">
<jsp:setProperty name="lookup" property="ilprod_db_user" value="<%=ilprod_db_user%>"/>
<jsp:setProperty name="lookup" property="ilprod_db_pass" value="<%=ilprod_db_pass%>"/>
<jsp:setProperty name="lookup" property="tedsi_prod_owner" value="<%=tedsi_prod_owner%>"/>
<jsp:setProperty name="lookup" property="nsp_portal_owner" value="<%=nsp_portal_owner%>"/>
<jsp:setProperty name="lookup" property="iladmin_owner" value="<%=iladmin_owner%>"/>
<jsp:setProperty name="lookup" property="ilprod_db_host" value="<%=ilprod_db_host%>"/>
<jsp:setProperty name="lookup" property="ilprod_db_port" value="<%=ilprod_db_port%>"/>
<jsp:setProperty name="lookup" property="ilprod_db_service" value="<%=ilprod_db_service%>"/>
<%
//open db conn
lookup.openIlprod();
ResultSet roem = lookup.getOEMDropdown();
ResultSet rstat = lookup.getStatusDropdown();
if(roem!=null){
%>
OEM:��
<select name="OEM">
<%
while(roem.next()){
%>
<option value="<%=roem.getString("id")%>"><%=roem.getString("name")%></option>
<%
%>
</select><br><br>
<%
else{
out.println("OEM:  no records<br><br>");
//******* IF I PUT ResultSet IN FRONT OF rstat HERE IT WORKS FINE?
rstat = lookup.getStatusDropdown();
if(rstat!=null){
%>
Status:��
<select name="status">
<%
while(rstat.next()){
%>
<option value="<%=rstat.getString("id")%>"><%=rstat.getString("description")%></option>
<%
%>
</select><br><br>
<%
else{
out.println("Status:  no records<br><br>");
//close db conn
lookup.closeIlprod();
%>
</jsp:useBean>
</body>
</html>
<%
catch(Exception e){
     //set request attributes to pass to error page
     request.setAttribute("javax.servlet.error.exception",e);
     request.setAttribute("javax.servlet.error.message",e.getMessage());
     request.setAttribute("javax.servlet.error.request_uri",     request.getRequestURI());
     request.setAttribute("javax.servlet.error.servlet_name", request.getServletPath());
     //log to Tomcat
     application.log(" Message: "+e.getMessage()+'\r'+'\n'+"RequestURI: "+request.getRequestURI()+'\r'+'\n'+"Servlet Path: "+request.getServletPath(),e);
     //forward to the error page
     RequestDispatcher rd =     request.getRequestDispatcher("error.jsp");
     rd.forward(request,response);
     //out.println(e.getMessage());
%>

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