UseBean problem
I tried to use the usebean tag from a jsp page..i use Tomcat 5.5.9.
it gives the following error . i tried to changing the name of the class but the problem remain
<jsp:useBean id="x" class="dbean.Readms" >
the error message is
-------------------------------------->
org.apache.jasper.JasperException: /new.jsp(2,0) The value for the useBean class attribute dbean.Readms is invalid.
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:39)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:405)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:146)
org.apache.jasper.compiler.Generator$GenerateVisitor.visit(Generator.java:1223)
org.apache.jasper.compiler.Node$UseBean.accept(Node.java:1116)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2213)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2219)
org.apache.jasper.compiler.Node$Root.accept(Node.java:456)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2163)
org.apache.jasper.compiler.Generator.generate(Generator.java:3270)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:189)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
========================================
please help
i need a quick solution
I put it in the WEB-INF/classes directory
here is the java file,i write it for testing
package dbean;
class Readms{
public String display(){
String as="from bean";
return as;
i use x.display(); from the jsp page
Message was edited by:
SreejithS
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The simple Converter.class in Test.Beans package
package Test.Beans;
import java.math.*;
public class Converter {
static BigDecimal yenRate = new BigDecimal("131.7800");
static BigDecimal euroRate = new BigDecimal("0.0084");
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<%@ page import="java.math.*" %>
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%>
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Here is the error message:
org.apache.jasper.JasperException: /main.jsp(2,0) The value for the useBean class attribute Test.Beans.Converter is invalid.
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:510)
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org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
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root cause
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org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:276)
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org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:563)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:303)
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Message was edited by:
BillyHuiWorks fine for me, copied and pasted exactly.
Try recompiling your java class again, to make sure it is valid.
Check that the class file is copied into the correct place by your ant build.
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Problems using different scope with useBean
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hi all !
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Problem in web application deployment in weblogic 8.1
hiiiiiiiii freinds!
i am a newcomer in the field of servlets and JSPs.Me and my freinds are developing a client/server chat application but i am facing a problem in transferring the control from one JSP to another JSP.I am using Oracle 10g and weblogic 8.1upon clicking the submit button at login.jsp i am seeing following message at web browser.
/loginhandler.jsp(4): class 'com.mycompany.login.Login' could not be loaded
probably occurred due to an error in /loginhandler.jsp line 4:
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codes for JSPs and bean class aregiven below-
login.jsp
1. <html>
2. <head><title></title>
3. <script language="javascript">
4. function Validate(){
5. var name=document.frm.userName
6. var password=document.frm.passWord
7.
8. if ((name.value==null)||(password.value=="")){
9. alert("Please Enter user name")
10. user.focus()
11. return false
12. }
13. if ((name.value==null)||(password.value=="")){
14. alert("Please Enter password")
15. pass.focus()
16. return false
17. }
18. return true
19. }
20. </script>
21. </head>
22. <body>
23. <form method="post" action="loginhandler.jsp">
24. username - <input type="text" name="userName"><br>
25. password - <input type="password" name="passWord"><br>
26. <input type="submit" value="Submit">
27. <input type="reset" value="Reset">
28. </form>
29. <jsp:include page="showformat.jsp"/>
30. </body>
31. </html> loginhandler.jsp
1. <%@page contentType="text/html"%>
2. <%@page pageEncoding="UTF-8"%>
3. <%@page import="java.util.*" %>
4. <jsp:useBean id="idHandler" class="com.mycompany.login.Login" scope="request" />
5. <jsp:setProperty name="idHandler" property="*" />
6. </jsp:useBean>
7. <html>
8. <head><title></title></head>
9. <body>
10. <%
11. String userName = request.getParameter("userName");
12. String passWord = request.getParameter("passWord");
13. if (idHandler.authenticate(userName, passWord)){
14. response.sendRedirect("welcome.jsp");
15. } else {
16. response.sendRedirect("loginfailed.html");
17. }
18. %>
19. </body>
20. </html> welcome.jsp
1. <html>
2. <head><title>welcome!!!!!!</title></head>
3. <body>
4. <%
5. String name=(String)request.getAttribute("userName");
6. out.println("Welcome" +name);
7. %>
8. </body>
9. </html> login.java
1. package com.mycompany.login;
2. import java.sql.*;
3. import java.io.*;
4.
5. public class Login
6. {
7. //default constructor
8. public Login(){}
9. //method for the database connection
10. public Connection getConnection()
11. throws IOException{
12. Connection conn = null;
13. try{
14. Class.forName("oracle.jdbc.driver.OracleDriver");
15. conn = DriverManager.getConnection(
16. "jdbc:oracle:thin:@localhost:1521:xe",
17. "system",
18. "abcdefgh");
19. }
20. catch(SQLException e)
21. {
22. System.out.println("SQLException: " + e.getMessage());
23. while((e = e.getNextException()) != null)
24. System.out.println(e.getMessage());
25. }
26. catch(ClassNotFoundException e)
27. {
28. System.out.println("ClassNotFoundException: " + e.getMessage());
29. }
30. return conn;
31. }
32. //method that is called from validateuser.jsp and this checks for the authentic user and
33. public boolean authenticate(String user, String pass)
34. throws SQLException, IOException{
35. String Username = null, Password = null;
36. Login dbconn = new Login();
37. Statement stmt = dbconn.getConnection().createStatement();
38. String sql = "SELECT USER_NAME, PASS_WORD FROM LOGINDETAILS WHERE USER_NAME='" + user + "'" + "AND PASS_WORD='" + pass + "'";
39. ResultSet rs = stmt.executeQuery(sql);
40. if(rs.next()){
41. Username = rs.getString("USER_NAME");
42. Password = rs.getString("PASS_WORD");
43. }
44. if(Username != null && Password != null && user.equals(Username) && pass.equals(Password)){
45. return true;
46. }
47. else return false;
48. }
49. } it is requested that please don't neglect or ignore any programming error in pages as i am a newcomer in the field of web development.also suggest some good content and study material for developing interactive and user freindly chat client/server web application.reply as soon as possible!ya i have done it and i have put it under the sub directories of classes directory and also included the import also i have modified the codes but problem is same.
login.jsp
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.util.*, java.text.*" errorPage="" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title></title>
<script language="javascript">
function Validate(){
var name=document.frm.userName
var password=document.frm.passWord
if ((name.value==null)||(password.value=="")){
alert("Please Enter user name")
user.focus()
return false
if ((name.value==null)||(password.value=="")){
alert("Please Enter password")
pass.focus()
return false
return true
</script>
</head>
<body>
<form method="post" action="loginhandler.jsp">
username - <input type="text" name="userName"><br>
password - <input type="password" name="passWord"><br>
<input type="submit" value="Submit">
<input type="reset" value="Reset">
</form>
<br><br><br><br><br><br><br>  
</form>
<jsp:include page="showformat.jsp"/>
</body>
</html>loginhandler.jsp
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd"><%@page contentType="text/html"%>
<%@ page pageEncoding="UTF-8"%>
<%@ page import="java.util.*" %>
<%@ page import="com.mycompany.login" %>
<jsp:useBean id="idHandler" class="com.mycompany.login.Login" scope="session">
<jsp:setProperty name="idHandler" property="userName" />
<jsp:setProperty name="idHandler" property="passWord" />
</jsp:useBean>
<html>
<head><title></title></head>
<%
String userName = request.getParameter("userName");
String passWord = request.getParameter("passWord");
if(userName == null)
userName = "";
if(passWord == null)
passWord = "";
if(!userName.equals("") && !password.equals("")){
session.setAttribute("User", userName);
session.setAttribute("Password", passWord);
if (idHandler.authenticate(userName, passWord)){
response.sendRedirect("welcome.jsp");
} else {
response.sendRedirect("loginfailed.html");
%>
<body></body>
</html>welcome.jsp
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*, java.io.*, java.util.*, java.text.*" errorPage="" %>
<%@ page import="com.mycompany.login" %>
<jsp:getProperty name="idHandler" property="*">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>welcome!!!!!!</title></head>
<body>
<%
String name=(String)session.getAttribute("User");
out.println("Welcome" +name);
%>
</body>
</html>
(code)
login.javapackage com.mycompany.login;
import java.sql.*;
import java.io.*;
public class Login {
String Username = null, Password = null;
//default constructor
public Login(){}
//method for the database connection
public Connection getConnection()
throws IOException{
Connection conn = null;
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
conn = DriverManager.getConnection(
"jdbc:oracle:thin:@localhost:1521:xe",
"system",
"abcdefgh");
catch(SQLException e)
System.out.println("SQLException: " + e.getMessage());
while((e = e.getNextException()) != null)
System.out.println(e.getMessage());
catch(ClassNotFoundException e)
System.out.println("ClassNotFoundException: " + e.getMessage());
return conn;
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public boolean authenticate(String user, String pass)
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Login dbconn = new Login();
Statement stmt = dbconn.getConnection().createStatement();
String sql = "SELECT USER_NAME, PASS_WORD FROM LOGINDETAILS WHERE USER_NAME='" + user + "'" + "AND PASS_WORD='" + pass + "'";
ResultSet rs = stmt.executeQuery(sql);
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Password = rs.getString("PASS_WORD");
if(Username != null && Password != null && user.equals(Username) && pass.equals(Password)){
return true;
else return false;
public void setUsername(String name)
Username=name;
public String getUsername()
return Username;
public void setPassword(String password)
Password=password;
public String getPassword()
return Password; -
Problem with transfering unicode form data in MULTIPART/FORM-DATA
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<option value="21">22</option>
<option value="22">23</option>
<option value="23">24</option>
<option value="24">25</option>
<option value="25">26</option>
<option value="26">27</option>
<option value="28">28</option>
<option value="29">29</option>
<option value="30">30</option>
<option value="31">31</option>
</select>
<b><%=session.getValue("main.dobmonth")%></b><select name="cmbmonth">
<option value="jan">JAN</option>
<option value="feb">FEB</option>
<option value="mar">MAR</option>
<option value="apr">APR</option>
<option value="may">MAY</option>
<option value="jun">JUN</option>
<option value="jul">JUL</option>
<option value="aug">AUG</option>
<option value="sep">SEPT</option>
<option value="oct">OCT</option>
<option value="nov">NOV</option>
<option value="dec">DEC</option>
</select>
<b><%=session.getValue("main.dobyear")%></b> <select name="cmbyear" onchange="if(this.form.cmbday.selectedIndex!=0 && this.form.cmbmonth.selectedIndex!=0 && this.form.cmbyear.selectedIndex!=0){this.form.mergedage.value=this.form.cmbday.options[this.form.cmbday.selectedIndex].value +' '+this.form.cmbmonth.options[this.form.cmbmonth.selectedIndex].text +' '+ this.form.cmbyear.options[this.form.cmbmonth.selectedIndex].value}" size="1">
<option value="1970">1970</option>
<option value="1971">1971</option>
<option value="1972">1972</option>
<option value="1973">1973</option>
<option value="1974">1974</option>
<option value="1975">1975</option>
<option value="1976">1976</option>
<option value="1977">1977</option>
<option value="1978">1978</option>
<option value="1979">1979</option>
<option value="1980">1980</option>
<option value="1981">1981</option>
<option value="1982">1982</option>
<option value="1983">1983</option>
<option value="1984">1984</option>
<option value="1985">1985</option>
<option value="1986">1986</option>
<option value="1987">1987</option>
<option value="1988">1988</option>
<option value="1989">1989</option>
<option value="1990">1990</option>
<option>
</select>
<input type="hidden" name="mergedage">
</tr>
<tr>
<td colspan=2><b>6.)<%=session.getValue("main.add")%></b>
</tr>
<tr>
<td align="right"><b><%=session.getValue("main.addline1")%></b>                 <input type="text" name="address1" value=""></td>
<td><b><%=session.getValue("main.addstate")%></b>             <input type="text" name="state"></td>
</tr>
<tr>
<td align="right"><b><%=session.getValue("main.addline2")%></b>                 <input type="text" name="address2" onChange="this.form.finaladdress.value=this.form.address1.value + ';' + this.value;"> <input type="hidden" name="finaladdress"> </td>
<td><b><%=session.getValue("main.addcity")%>               </b><input type="text" name="city"></td>
</tr>
<tr>
<td align="right"> <b><%=session.getValue("main.addpin")%></b>              <input type="text" name="pincode">
<td></td>
</tr>
<tr>
<td ><b>7.)<%=session.getValue("main.const")%></b> <input type="text" name="constituency">
<td ><b>8.)<%=session.getValue("main.id")%></b>   <input type="text" name="refno">
</tr>
<tr>
<td colspan="2"><center><input type="reset" name="reset" value="<%=session.getValue("button.reset")%>">  <input type=submit name=Submit value="<%=session.getValue("button.submit")%>"></center></td>
</tr>
<tr>
<td>
</td>
</tr>
</form>
</font>
</BODY>
</HTML>
// verify.jsp
<%@ page language="java" pageEncoding="UTF-8"%>
<jsp:useBean id="verify" class="pack.verify" scope="request"/>
<%@ page import="com.oreilly.servlet.*" %>
<%@ page import="java.util.*,java.text.*" %>
<%!
MultipartRequest mp;
// ParameterParser pp;
%>
<!-- Perform the actions on the bean. -->
<%
//pp.setCharacterEncoding("utf-8");
%>
<%
try
mp = new MultipartRequest(request, "d:/Files");
out.println("DONE");
/* Set the request object.*/
/* The request object is implicitly available in the JSP page.*/
verify.setRequest(mp);
/* Insert the employee data into the database.*/
verify.verifyEntry();
//verify.setscope();
/* Run the query to retrieve the employee data from the database.*/
//logicbean.runQuery();
catch (Exception e)
System.out.println(e.getMessage());
%>
<HTML>
<HEAD>
<LINK href="theme/Master.css" rel="stylesheet" type="text/css">
<TITLE>
</TITLE>
</HEAD>
<BODY background="brown.bmp">
<form name=form6 action="insertEntry.jsp" method="POST">
<center>
<table border=3>
<tr>
<td colspan=2><center><img src="asok.bmp"></center>
</tr>
<tr>
<td >
<b>1.)<%=session.getValue("main.ec")%></b>
</td>
<td rowspan=3>
<image src="<%=verify.getpic()%>" width="85" hieght="85">
</td>
</tr>
<tr>
<td >             <b><%=session.getValue("main.ecname")%></b> <%=verify.getvotername()%>  <input type="hidden" value= "<%=verify.getvotername()%>" name="votername"></td>
</tr>
<tr >
<td>             <b><%=session.getValue("main.ecsurname")%></b><%=verify.getvotersurname()%>
<input type="hidden" value= "<%=verify.getvotersurname()%>" name="votersurname"></td>
</tr>
<tr>
<td ><b>2.)<%=session.getValue("main.rel")%></b><input type="hidden" value= "<%=verify.getvoterrelation()%>" name="texthiddenrelation"></td>
<td><%=verify.getvoterrelation()%></td>
</tr>
<tr>
<td >            <b><%=session.getValue("main.relname")%></b>    <input type="hidden" value= "<%=verify.getparentname()%>" name="parentname"></td>
<td><%=verify.getparentname()%></td>
</tr>
<tr>
<td >            <b><%=session.getValue("main.relsurname")%></b><input type="hidden" value= "<%=verify.getparentsurname()%>" name="parentsurname"></td>
<td><%=verify.getparentsurname()%></td>
</tr>
<tr>
<td><b>3.)<%=session.getValue("main.sex")%></b><input type="hidden" value= "<%=verify.getsex()%>" name="texthiddensex"></td>
<td><%=verify.getsex()%></td>
</tr>
<tr>
<td ><b>4.)<%=session.getValue("main.age")%></B><input type="hidden" value= "<%=verify.getage()%>" name="age"></td>
<td><%=verify.getage()%></td>
</tr>
<tr>
<td><b>5.)<%=session.getValue("main.dob")%></b> <input type="hidden" value= "<%=verify.getdob()%>" name="mergedage"></td>
<td> <%=verify.getdob()%></td>
</tr>
<tr>
<td colspan=2><b>
6.)<b><%=session.getValue("main.add")%></b></td>
</tr>
<tr>
<td>             <b><%=session.getValue("verify.add")%></b><input type="hidden" value= "<%=verify.getadderess()%>" name="finaladdress"> </td>
<td><%=verify.getadderess()%></td>
</tr>
<tr>
<td >            <b><%=session.getValue("main.addpin")%></b><input type="hidden" value= "<%=verify.getpin()%>" name="pincode"></td>
<td><%=verify.getpin()%></td>
</tr>
<tr>
<td>            <b><%=session.getValue("main.addstate")%></b><input type="hidden" value= "<%=verify.getstate()%>" name="state"></td>
<td><%=verify.getstate()%></td>
</tr>
<tr>
<td><b>            <%=session.getValue("main.addcity")%></b><input type="hidden" value= "<%=verify.getcity()%>" name="city"></td>
<td><%=verify.getcity()%></td>
</tr>
<tr>
<td><b>7.)<%=session.getValue("main.const")%></b> <input type="hidden" value= "<%=verify.getconst()%>" name="constituency"></td>
<td><%=verify.getconst()%></td>
</tr>
<tr>
<td><b>8.)<%=session.getValue("main.id")%></b> <input type="hidden" value= "<%=verify.getrefno()%>" name="refno"></td>
<td><%=verify.getrefno()%></td>
</tr>
<tr>
<td colspan="2"><center><INPUT TYPE="button" VALUE="<%=session.getValue("ie.back")%>" onClick="history.go(-1)">
<input type=submit name=Submit value="<%=session.getValue("button.submit")%>"></center><input type="hidden" value= "<%=verify.getpic()%>" name="pic"></td>
</tr>
</form>
</BODY>
</HTML>
//verify.java
package pack;
import java.lang.*;
import java.sql.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
import com.oreilly.servlet.*;
import com.oreilly.servlet.ParameterParser.*;
* @author Administrator
* To change this generated comment edit the template variable "typecomment":
* Window>Preferences>Java>Templates.
* To enable and disable the creation of type comments go to
* Window>Preferences>Java>Code Generation.
public class verify {
String votername = "";
String votersurname = "";
String texthiddenrelation="";
String parentname = "";
String parentsurname = "";
String gender = "";
String texthiddensex="";
String age = "";
String dob = "";
String mergedage="";
String address = "";
String finaladdress="";
String pincode = "";
String state = "";
String city = "";
String constituency = "";
String refno = "";
MultipartRequest request = null;
Connection dbConn = null;
ParameterParser pp;
private String voternameParam;
* Set the request object. This is used for getting parameters.
public void setRequest(MultipartRequest request)
this.request = request;
public void verifyEntry()
throws Exception
/* Connect to the database.*/
//pp.setCharacterEncoding("utf-8");
//String nameParam = request.getParameter("name");
MultipartRequest mp;
System.out.println("connected to db2 through insertemployee");
/* Get all the parameters from the calling HTML form.*/
String voternameParam = request.getParameter("votername");
System.out.println("the votername is " + request.getParameter("votername"));
System.out.println(voternameParam);
String votersurnameParam = request.getParameter("votersurname");
System.out.println("the votersurname is " + request.getParameter("votersurname"));
String hiddenrelationParam = request.getParameter("texthiddenrelation");
System.out.println("the relation is " + request.getParameter("texthiddenrelation"));
String parentnameParam = request.getParameter("parentname");
System.out.println("the parentname is " + request.getParameter("parentname"));
String parentsurnameParam = request.getParameter("parentsurname");
System.out.println("the parentsurname is " + request.getParameter("parentsurname"));
String ageParam = request.getParameter("age");
System.out.println("the age is " + request.getParameter("age"));
String mergedageParam = request.getParameter("mergedage");
System.out.println("the mergedage is " + request.getParameter("mergedage"));
String hiddensexParam = request.getParameter("texthiddensex");
System.out.println("the hiddensex is " + request.getParameter("texthiddensex"));
//String dobParam = request.getParameter("dob");
//System.out.println("the dob is " + request.getParameter("dob"));
String finaladdressParam = request.getParameter("finaladdress");
System.out.println("the finaladdress is " + request.getParameter("finaladdress"));
String pincodeParam = request.getParameter("pincode");
System.out.println("the pincode is " + request.getParameter("pincode"));
String stateParam = request.getParameter("state");
System.out.println("the state is " + request.getParameter("state"));
String cityParam = request.getParameter("city");
System.out.println("the city is " + request.getParameter("city"));
String constituencyParam = request.getParameter("constituency");
System.out.println("the constituency is " + request.getParameter("constituency"));
String refnoParam = request.getParameter("refno");
System.out.println("the refno is " + request.getParameter("refno"));
System.out.println("encoding = " + System.getProperty("file.encoding"));
public String getvotername()
return request.getParameter("votername");
public String getvotersurname()
return request.getParameter("votersurname");
public String getvoterrelation()
return request.getParameter("texthiddenrelation");
public String getparentname()
return request.getParameter("parentname");
public String getparentsurname()
return request.getParameter("parentsurname");
public String getage()
return request.getParameter("age");
public String getsex()
return request.getParameter("texthiddensex");
public String getadderess()
return request.getParameter("finaladdress");
public String getpin()
return request.getParameter("pincode");
public String getstate()
return request.getParameter("state");
public String getcity()
return request.getParameter("city");
public String getconst()
return request.getParameter("constituency");
public String getrefno()
return request.getParameter("refno");
public String getdob()
return request.getParameter("mergedage");
public String getpic()
//String a=request.getParameter("pic");
//a=a.substring(a.lastIndexOf("/")+1);
//System.out.print("Java path is "+a);
//Enumeration enum=request.getFileNames();
//while(enum.hasMoreElements())
// String abc=(String)enum.nextElement();
// System.out.print("Java the path is "+abc);
return request.getParameter("pic");
String votername1;
//public void setScope()
//request.setAttribute("votername1" ,voternameParam );
//insertEntry.jsp
<jsp:useBean id="logicbean" class="pack.logicbean" scope="request"/>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ page import="java.util.*,java.text.*" %>
<%@ page import="com.oreilly.servlet.*" %>
<%
request.setCharacterEncoding("UTF-8");
%>
<!-- Perform the actions on the bean. -->
<%
request.setCharacterEncoding("UTF-8");
%>
<%
try
/* Set the request object.*/
/* The request object is implicitly available in the JSP page.*/
logicbean.setRequest(request);
//MultiPartRequest mp=MultiPartRequest(request,"E:\Files");
/* Insert the employee data into the database.*/
logicbean.insertEntry();
/* Run the query to retrieve the employee data from the database.*/
//logicbean.runQueryInsert();
catch (Exception e)
System.out.println(e.getMessage());
%>
<HTML>
<HEAD>
<TITLE>
Insert Record
</TITLE>
</HEAD>
<BODY background="brown.bmp">
<center><H2><%=session.getValue("ie.label")%>
</H2>
<font face = "Devanagari MT for IBM" size = +2>
<b><%=session.getValue("ie.sd")%>|<%=session.getValue("ie.home")%></b>
</font>
</center>
</BODY>
</HTML>
I have narrowed down the problem to the point where i understand that the "request.getParameter()" function for multipart is not able to understand or read UTF data properly. The out.println prints garbage from this function on the console. im using WAS
plz help
thanx in advance
caffainehi,
To solve your problem Servlet Filters
FILTER PROGRAM
===============
package filters;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.UnavailableException;
public class SetCharacterEncodingFilter implements Filter {
// ----------------------------------------------------- Instance Variables
* The default character encoding to set for requests that pass through
* this filter.
protected String encoding = null;
* The filter configuration object we are associated with. If this value
* is null, this filter instance is not currently configured.
protected FilterConfig filterConfig = null;
* Should a character encoding specified by the client be ignored?
protected boolean ignore = true;
// --------------------------------------------------------- Public Methods
* Take this filter out of service.
public void destroy() {
this.encoding = null;
this.filterConfig = null;
* Select and set (if specified) the character encoding to be used to
* interpret request parameters for this request.
* @param request The servlet request we are processing
* @param result The servlet response we are creating
* @param chain The filter chain we are processing
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain)
throws IOException, ServletException {
// Conditionally select and set the character encoding to be used
if (ignore || (request.getCharacterEncoding() == null)) {
String encoding = selectEncoding(request);
if (encoding != null)
request.setCharacterEncoding(encoding);
// Pass control on to the next filter
chain.doFilter(request, response);
* Place this filter into service.
* @param filterConfig The filter configuration object
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
this.encoding = filterConfig.getInitParameter("encoding");
String value = filterConfig.getInitParameter("ignore");
if (value == null)
this.ignore = true;
else if (value.equalsIgnoreCase("true"))
this.ignore = true;
else if (value.equalsIgnoreCase("yes"))
this.ignore = true;
else
this.ignore = false;
// ------------------------------------------------------ Protected Methods
* Select an appropriate character encoding to be used, based on the
* characteristics of the current request and/or filter initialization
* parameters. If no character encoding should be set, return
* <code>null</code>.
* <p>
* The default implementation unconditionally returns the value configured
* by the <strong>encoding</strong> initialization parameter for this
* filter.
* @param request The servlet request we are processing
protected String selectEncoding(ServletRequest request) {
return (this.encoding);
web-xml entry
+++++++++++
<filter>
<filter-name>Set Character Encoding</filter-name>
<filter-class>filters.SetCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Set Character Encoding</filter-name>
<url-pattern>*.jsp</url-pattern>
</filter-mapping> -
Problem with java beans and jsp on web logic 6.0 sp1
HI ,
I am using weblogic6.0 sp1.
i have problem with jsp and java beans.
i am using very simple java bean which stores name and email
from a html form.
but i am getting following errors:
Full compiler error(s):
D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
cannot resolve symbol
symbol : class userbn
location: class jsp_servlet._savename2
userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
^
D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
cannot resolve symbol
symbol : class userbn
location: class jsp_servlet._savename2
userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
^
D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:94:
cannot resolve symbol
symbol : class userbn
location: class jsp_servlet._savename2
ud = (userbn) java.beans.Beans.instantiate(getClass().getClassLoader(),
"userbn"); //[ /SaveName2.jsp; Line: 7]
^
3 errors
in which directory should i place java bean source file(.java file)
here is my jsp file:
<%@ page language = "java" contentType = "text/html" %>
<html>
<head>
<title>bean2</title>
</head>
<body>
<jsp:usebean id = "ud" class = "userbn" >
<jsp:setProperty name = "ud" property = "*" />
</jsp:usebean>
<ul>
<li> name: <jsp:getProperty name = "ud" property = "name" />
<li> email : <jsp:getProperty name = "ud" property = "email" />
</ul>
</body>
<html>
here is my bean :
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
import java.io.*;
public class userbn implements Serializable
private String name ;
private String email;
public void setName(String n)
name = n;
public void setEmail(String e)
email = e;
public String getName()
return name;
public String getEmail()
return email;
public userbn(){}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
pls help me.
Thanks
sravana.
You realy can do it like Xiang says, but the better way is to use packages. That's
the way BEA is designed for. If you use packages you can but your bean classes
in every subfolder beneath Classes. Here for example we have the subfolders test
and beans:
You have to declare the package on top of your Bean Source Code:
package test.beans;
In your JSP you don't need the import code of Xiang. You only have to refer the
path of your bean class:
<jsp:useBean id="testBean" scope="session" class="test.beans.TestBean" />
There are some other AppServers that only can deploy Java Beans in packages. So
if you use packages you are always on the right side.
ciao bernd
"sravana" <[email protected]> wrote:
>
>Thank you very much Xiang Rao, It worked fine.
>Thanks again
>sravana.
>
>"Xiang Rao" <[email protected]> wrote:
>>
>><%@ page import="userbn" language = "java" contentType = "text/html"
>>%> should
>>work for you.
>>
>>
>>"sravana" <[email protected]> wrote:
>>>
>>>HI ,
>>>
>>>I am using weblogic6.0 sp1.
>>>
>>>i have problem with jsp and java beans.
>>>
>>>i am using very simple java bean which stores name and email
>>>
>>>from a html form.
>>>
>>>but i am getting following errors:
>>>
>>>________________________________________________________________
>>>
>>>Full compiler error(s):
>>>D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
>>>cannot resolve symbol
>>>symbol : class userbn
>>>location: class jsp_servlet._savename2
>>> userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
>>> ^
>>>D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:89:
>>>cannot resolve symbol
>>>symbol : class userbn
>>>location: class jsp_servlet._savename2
>>> userbn ud = (userbn) //[ /SaveName2.jsp; Line: 7]
>>> ^
>>>D:\bea4\wlserver6.0sp1\config\mydomain\applications\DefaultWebApp_myserver\WEB-INF\_tmp_war_myserver_myserver_DefaultWebApp_myserver\jsp_servlet\_savename2.java:94:
>>>cannot resolve symbol
>>>symbol : class userbn
>>>location: class jsp_servlet._savename2
>>> ud = (userbn) java.beans.Beans.instantiate(getClass().getClassLoader(),
>>>"userbn"); //[ /SaveName2.jsp; Line: 7]
>>> ^
>>>3 errors
>>>
>>>____________________________________________________________
>>>
>>>in which directory should i place java bean source file(.java file)
>>>
>>>here is my jsp file:
>>>--------------------------------------------------------
>>>
>>><%@ page language = "java" contentType = "text/html" %>
>>><html>
>>><head>
>>><title>bean2</title>
>>></head>
>>><body>
>>><jsp:usebean id = "ud" class = "userbn" >
>>><jsp:setProperty name = "ud" property = "*" />
>>></jsp:usebean>
>>><ul>
>>><li> name: <jsp:getProperty name = "ud" property = "name" />
>>><li> email : <jsp:getProperty name = "ud" property = "email" />
>>></ul>
>>></body>
>>><html>
>>>
>>>-------------------------------------------------------------
>>>
>>>here is my bean :
>>>
>>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>>import java.io.*;
>>>
>>>public class userbn implements Serializable
>>>{
>>>
>>> private String name ;
>>>
>>> private String email;
>>>
>>> public void setName(String n)
>>> {
>>>
>>> name = n;
>>> }
>>>
>>> public void setEmail(String e)
>>> {
>>>
>>> email = e;
>>> }
>>>
>>> public String getName()
>>> {
>>>
>>> return name;
>>> }
>>>
>>> public String getEmail()
>>> {
>>>
>>> return email;
>>> }
>>>
>>> public userbn(){}
>>>}
>>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>
>>>pls help me.
>>>Thanks
>>>sravana.
>>>
>>
>
-
Hi,
I am working on a JSP based website, where I am facing problem with sessions. The user is asked to login by providing her id and password. If found correct, a bean is created and populated with all her details and placed in session scope. I plan to use the information stored in the bean on other related pages until she logs out.
<jsp:useBean id="validUser" scope="session" class="UserBean" >
<c:set target="${validUser}" property="userId" value="${fn:trim(dbValues.UserId)}" />
<c:set target="${validUser}" property="userName" value="${fn:trim(dbValues.UserName)}" />
</jsp:useBean>
<c:redirect url="userHome.jsp" /> The user is presented her homepage - 'userHome.jsp', where she can find various links, like 'Update Profile', 'Pay Registration Fees', 'Book Room' etc. The information stored in the bean is available on 'userHome.jsp'page.
<A HREF='userHome.jsp'>Home</A>
<A HREF='editPersonal.jsp'>Update Profile</A>
<A HREF='registrationFee.jsp'>Pay Registration Fees</A>
<A HREF='bookRoom.jsp'>Book Room</A>
<A HREF='logout.jsp'>Logout</A> The problems are:
1. Whenever user clicks on any of the above mentioned links and moves to any page, the bean comes out as null.
<%-- Verify that the user is logged in --%>
<c:if test="${validUser == null}">
<jsp:forward page="loginForm.jsp">
<jsp:param name="origURL" value="${pageContext.request.requestURL}" />
<jsp:param name="errorMsg" value="You must be logged in to access this site." />
</jsp:forward>
</c:if> 2. The URL shows an additional jsessionid, which my client doesn't want to see.
3. On every click on any link, the value of this jsessionid changes.
What I presume, when I am clicking on different links, my session changes, and so I am seeing a different jsessionid. And since session is changing, therefore the bean is not available in a different session.
All this works fine with localhost, problem comes into picture, when I upload my pages to the server.
Puzzled, can anyone help, where am I going wrong? Let me add here, I am new to JSP and hence don't have much resources with me.There are several ways sessions can be exchanged between the browser and the server in a j2ee web application.
1. The default is through cookies. However when the client does not accept cookies, the server appends the session id to the url.
2. Some servers also facilitate session information exchange using session id in the url even if the client does accept cookies. This is usually ahieved through a setting in some server configuration file.
You will have to find out why the server in your application is appending the session id to the url.
Whatever be the case, the server should be able to look up the session from the incoming request (be it from the session id in the url or a session cookie).
When session information is exchanged through the JSESSIONID in the url, you should ensure that each and every url that goes to the server has this input parameter. To do that all links and form post urls in your servlet/jsp should be treated with a call to encodeURL().
For example, in a jsp
<a href = "<%=response.encodeURL("/nextJsp.jsp")%>">Click here </a>
or
<form action = "<%=response.encodeURL("/nextJsp.jsp")%>">
</form>etc.
ram. -
Problem with Javascript in JSP
Hi Guys,
I have this problem with my JSP page. I am using a javascript function
which calls a function within a bean. The problem that I have is that I get an error when trying to call the following function :
function refDataTypes_onchange()
Vector empNames = DBQuery.getResult();
I get a runtime error at the line Vector empNames = DBQuery.getResult;
Any ideas would be much appreciated.
Below is the whole code:
Thanks in advance
FRank
<%@ page contentType="text/html;charset=WINDOWS-1252"%>
<%@ page import="java.util.*, java.lang.*" %>
<%-- Declare the java bean for the countries to be queried --%>
<jsp:useBean id="DBQuery" class="DBQuery" scope="page" />
<%-- Bean property searchCondition is not set to query countries --%>
<jsp:setProperty name="DBQuery" property="searchCondition" />
<%
Vector empNames = DBQuery.getResult();
%>
<HTML>
<BODY BGCOLOR="GREY">
<SCRIPT LANGUAGE="JavaScript1.1">
function refDataTypes_onchange()
Vector empNames = DBQuery.getResult();
</SCRIPT>
<FORM NAME = form1>
Please enter in the following details
<p>
Reference Type :::====
<select name="refDataTypes" onchange="refDataTypes_onchange()">
<option value ="1"></option>
<% for(Enumeration enum = empNames.elements();enum.hasMoreElements();)
String nextEmpName = (String)enum.nextElement();
%>
<option value =<%=nextEmpName%>><%=nextEmpName%></option>
<%
%>
</select>
<BR>
<BR>
Emp No
<INPUT TYPE="text" NAME=txtAge >
<BR>
<BR>
<INPUT TYPE="button" VALUE="Check Details" NAME=butCheckForm >
</FORM>
</BODY>
</HTML>Thanks dimadoo
I need my JSP to do the following :
When a user selects a option from a select list. There is a textfield which I want to populate based on the option that thas been selected from the list.
I tried the following :
<% Vector empNames = DBQuery.getResult(); %>
and it does not even go into the bean.
Will this work if I refresh the page? -
Problem with JavaBeans in JSP.IT'S URGENT!!!
Hi, i have problems with JavaBeans in JSP.
In a jsp file( locating in ROOT directory of tomcat 4.0.6 :jakarta-tomcat-4.0.6\webapps\root ) i have this code:
<jsp:useBean id="paramBean" class="licentza.ParamBean" />
<jsp:setProperty name="paramBean"
property="nume"
value='<%= request.getParameter("numeUser") %>' />
where ParamBean it's a "bean" class locating in jakarta-tomcat-4.0.6\webapps\examples\web-inf\classes\licentza (licentza is the package i'm using).
And i get this error:
Generated servlet error:
D:\jakarta-tomcat-4.0.6\work\Standalone\localhost\_\dora\intrare2$jsp.java:67: Class licentza.ParamBean not found.
ParamBean paramBean = null;
What is the problem?Thank you.Hi,
Put the class file or the package under :jakarta-tomcat-4.0.6\webapps\root\WEB-INF\classes.
Rajesh -
Animated gif and page refresh problem
Animated gif and page refresh problem
Hi There,
I'm trying to build a simple "Please wait......" screen using jsp and javascript.
So far all is going well except that my animatate gif keeps refreshing everything the page is refresh.
Is there a way the i can prevent the body of the page from refreshing?
below is my sample code:
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<jsp:useBean id="StatusBean" class="com1.CandidateRelease" scope="session"/>
<html>
<script LANGUAGE="JavaScript">
function refresh()
<% if (StatusBean.isRunning()) { %>
//setTimeout("refresh()", 1000);
setTimeout("location='status.jsf'", 1000);
<% }else{%>
window.location= "busStopAdmin.jsf";
<%} %>
</script>
<head>
<script LANGUAGE="JavaScript">
refresh();
</script>
</head>
<body>
<img id="myImage" src="../img/ojp_wait.gif" alt="" width="151" height="36">
</body>
</html>Animated gif and page refresh problem
Hi There,
I'm trying to build a simple "Please wait......" screen using jsp and javascript.
So far all is going well except that my animatate gif keeps refreshing everything the page is refresh.
Is there a way the i can prevent the body of the page from refreshing?
below is my sample code:
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<jsp:useBean id="StatusBean" class="com1.CandidateRelease" scope="session"/>
<html>
<script LANGUAGE="JavaScript">
function refresh()
<% if (StatusBean.isRunning()) { %>
//setTimeout("refresh()", 1000);
setTimeout("location='status.jsf'", 1000);
<% }else{%>
window.location= "busStopAdmin.jsf";
<%} %>
</script>
<head>
<script LANGUAGE="JavaScript">
refresh();
</script>
</head>
<body>
<img id="myImage" src="../img/ojp_wait.gif" alt="" width="151" height="36">
</body>
</html> -
Problem with formatting date with JSTL ans swedish locale
Hi,
I have a strange problem with JSTL fmt:formatDate -tag and swedish locale.
-------------------------- Extract from the JSP ------------------------------
<jsp:useBean id="date" class="java.util.Date" />
<fmt:formatDate value="${date}" pattern="dd.MM.yyyy HH:mm" />
With en_US and fi_FI locales date is printed just the way I want: 29.04.2005 13:28 but in se_SE locale it is printed: Fri Apr 29 13:30:09 EEST 2005
Has anyone had this problem before?
Thanks in advance!Hi
Try using "sv_SE" locale.
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