Print GregorianCalendar using JSTL

I have a GregorianCalendar property (for example exchange.rateDate) and I want to print it in a jsp page using jstl tags.
How can I solve this problem?
liviu

If the object you are trying to print is a GregorianCalendar, then you need to get the time property of the Calendar, which returns a Date object; the formatDate tag cannot handle a "raw" GregorianCalendar.
Using the previous example, it should be:
<%@taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<fmt:formatDate value="${exchange.rateDate.time}" type="date" dateStyle="SHORT"/>
<fmt:formatDate value="${exchange.rateDate.time}" type="date" pattern="dd/MM/yyyy"/>

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Send Vector class to JSP and print this Vector using JSTL

Hello All!
I need your help to solve my question.
I developed a Servlet + jsp application.
I tested it in local with Apache Tomcat/6.0.20 and it works correctly.
I write and use these classes:
class for execute query, and including data page:
package MySQL;
* To change this template, choose Tools | Templates
* and open the template in the editor.
import java.util.*;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
* @author initmax
public class MySQLQuery {
 private Connection CurrentConnect; //obj for connect to databae
 private Vector VectorPageObj = new Vector(); //save array object page, after execute query
public MySQLQuery() {}
//constructor accept current conection database
public MySQLQuery(Connection CurrentConnectBase)
 CurrentConnect = CurrentConnectBase;
//method accept name table and return all info on this table
public void SelectAllField(String NameTable)
 try
 Statement st = CurrentConnect.createStatement();
 String query = ("select * from "+NameTable);
 ResultSet resultQuery = null;
 resultQuery = st.executeQuery(query);
//step in cycle after execution query, and create Vector object
 while (resultQuery.next())
 GenPageMySQL PageObj = new GenPageMySQL();
 PageObj.setId(resultQuery.getInt("id"));
 PageObj.setTheme(resultQuery.getString("theme"));
 PageObj.setPage(resultQuery.getString("page"));
 VectorPageObj.add(PageObj); //add obj in tail vector
 catch (SQLException e) {
 e.printStackTrace();
 *@set the CurrentConnect
 public void setConnection(Connection CurrentConnectBase) {
 CurrentConnect = CurrentConnectBase;
 *@get Vector object "Vector created after execute query"
 public Vector getVectorPageObj(Connection CurrentConnectBase) {
 return VectorPageObj;
}start Servlet class:
import java.util.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import MySQL.*;
public class indexServlet extends HttpServlet {
 private String getpage;
 //Connected MySQL
 private MySQLConnect MySQLConnectObj = new MySQLConnect();
 private MySQLQuery MySQLQueryObj = new MySQLQuery();
 public void init(){
 MySQLConnectObj.DownloadDriver();
 MySQLConnectObj.Connected();
 //Use current connection, for execution query
 MySQLQueryObj.setConnection(MySQLConnectObj.GetConnection());
 protected void doGet(HttpServletRequest request, HttpServletResponse response)
 throws ServletException, IOException, NullPointerException {
// init();
 PrintWriter out = response.getWriter();
//GET case useer
 getpage = request.getParameter("page");
 out.print("MySQLConnectObj.GetConnection() = "+MySQLConnectObj.GetConnection());
//Check curent connect to database
 if(MySQLConnectObj.GetConnection() != null)
 MySQLQueryObj.SelectAllField("up_menu");//execution query
 MySQLConnectObj.DisConnected();
 request.setAttribute("up_menu_theme",MySQLQueryObj.getVectorPageObj(null));
 RequestDispatcher Dispatcher = getServletContext().getRequestDispatcher("/WEB-INF/jsp/index.jsp");
 Dispatcher.forward(request, response);
 else if(MySQLConnectObj.GetConnection() == null){
 init() ;
 out.print("MySQLConnectObj.GetConnection() = "+MySQLConnectObj.GetConnection());
// MySQLConnectObj.DisConnected();
}I forward Vector "MySQLQueryObj.getVectorPageObj(null)" to JSP, how I can print data vector using JSTL?

your right, I learn Java however this very Interesting!
I change code, change Vector on List
class MySQLQyery:
package MySQL;
* To change this template, choose Tools | Templates
* and open the template in the editor.
import java.util.*;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
* @author initmax
public class MySQLQuery {
 private Connection CurrentConnect; //obj for connect to databae
public MySQLQuery() {}
//constructor accept current conection database
public MySQLQuery(Connection CurrentConnectBase) {
 CurrentConnect = CurrentConnectBase;
//method accept name table and link on List, after work return all info on this table inside List
public List<GenPageMySQL> selectAllField(String NameTable, List<GenPageMySQL> ListPageObj) {
 try {
 Statement st = CurrentConnect.createStatement();
 String query = ("select * from "+NameTable);
 ResultSet resultQuery = null;
 resultQuery = st.executeQuery(query);
//step in cycle after execution query, and create Vector object
 while (resultQuery.next()) {
 GenPageMySQL PageObj = new GenPageMySQL();
 PageObj.setId(resultQuery.getInt("id"));
 PageObj.setTheme(resultQuery.getString("theme"));
 PageObj.setPage(resultQuery.getString("page"));
 ListPageObj.add(PageObj); //add obj in tail vector
 catch (SQLException e) {
 e.printStackTrace();
 return ListPageObj;
 *@set the CurrentConnect
 public void setConnection(Connection CurrentConnectBase) {
 CurrentConnect = CurrentConnectBase;
List<GenPageMySQL> ListPageObj;
 //get List<RowObject>
 ListPageObj = MySQLQueryObj.getListPageObj();
out.print("Size Page objects = "+ListPageObj.size());
 request.setAttribute("upMenu",ListPageObj);
 RequestDispatcher Dispatcher = getServletContext().getRequestDispatcher("/WEB-INF/jsp/index.jsp");
 Dispatcher.forward(request, response);string out.print("Size Page objects = "+ListPageObj.size()); == worked, I get count objects correct
How I can output fields Object GenPageMySQL in JSTL?
writing so:
 <c:out value="hello, Max" />
 <c:out value="${10+20/2}" />
 <c:forEach items="${upMenu}" var="Object" >
 <c:out value="${Object.getId}"> </c:out>
 </c:forEach>
 </body>
</html>but get error:
org.apache.jasper.JasperException: An exception occurred processing JSP page /WEB-INF/jsp/index.jsp at line 36
33: <c:forEach items="${upMenu}" var="Object" >
34:
35:
36: <c:out value="${Object.getId}"> </c:out>
37:
38:
39: </c:forEach>
Stacktrace:
 org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
 org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:416)
 org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 indexServlet.doGet(indexServlet.java:49)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
 javax.servlet.http.HttpServlet.service(HttpServlet.java:717)How I can in output print fields my Object?
Thank you for your help.

Problem while parsing xmlString in jsp using JSTL

HI, I am not able to display data in jsp page that I have stored in string variable in XML form.
I want to print xmlString data in jsp using jstl.
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I managed the code but getting following error
org.apache.jasper.JasperException: javax.servlet.jsp.JspException: Content is not allowed in prolog.
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     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:375)
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root cause
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     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
root cause
org.xml.sax.SAXParseException: Content is not allowed in prolog.
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Accesing a List within A List Using JSTL

Hi,
I am trying to access a property of an object within a List Object which again is in a List object using JSTL.
List----List----Obj1----Property1 <--( I want to print this in a Table on a JSP)
I am unable to figure out how to do it using the <c:forEach> tag.
Thanks in advance,
Shardul.
Message was edited by:
shardul.bhatt

Hi,
Thanks for your response. Actually I wanted a single statement to do this. Its my mistake I should have put the question in a different manner.
Something like
<c:out value="${requestScope.OUTER_LIST.[FIRST_INSTANCE_OF_INNER_LIST].[OBJECT].[PROPERTY]}" ></c:out>The OuterList has many InnerLists and each InnerList has many Objects. The Property of the first Object in the InnerList is what I want to print as a 'Title' of a table.
For example: The Objects in the Inner List are UserObjects, where all the Users of a particular type are put together in an InnerList. I want to display the users of different types grouped together and the Table should have the 'User Type' as its title.
I could do it like this
<tr border="2" class="selectedrow">
<td>User Type</td>
<td>

<c:forEach items="${usersByType}" var="user" begin="0" end="0">
<c:out value="${user.userType}"></c:out>
</c:forEach>

</td>But I think there has to be a better way to do it.
BR,
Shardul

How to use JSTL for vectors

I am using vectors in my bean class.I am using traditional scriptlet code to get Vector in jsp using
<jsp:usebean id="tds" class="com.TrainBean" />
and i get vector like this from Bean
Vector v=tds.getName();
and i use scriptlet to print values of vector like
<%
for(int i=0;i< v.size() ;i++){

Vishal_Fichadiya wrote:
ya i had tried using <C:forEach but it didnt work
can u plz give me an example so tht i can use it
wit array list and can use JSTL in thtSee this [http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JSTL3.html]

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Hi,
I have one button tag which displays the button with round corner. I will show the button like this:
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I am getting the problem with the above code. how can i use JSTL inside the custom tags.
Thanks in Advance,
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No. The details are given below:
I have included the follwing line in web.xml file:
<taglib>
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<%@ taglib uri="/tags/button" prefix="ep"%>and
<ep:button key="buttons.submit" name="submitBtn" styleClass="But"
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Thanks,
LALITH

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The "println" call tells me that "id_string" has a valid value.
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Edited by: haoniukun on Sep 15, 2007 9:57 PM

haoniukun wrote:
 String id_string = (String)session.getAttribute("user_id");
<a href="springapp/blog.htm?id=<c:out value=${ id_string " /><c:out value="${ valid_user }" />" >test
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here you got vector say; v
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%>
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