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Old May 8th, 2006, 05:54 AM
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Default error accessing database connection using jsp


I have an error, during accessing a datbase using jsp:useBean from jsp.Urgent i need this one
my source code is


package SQLBean;
import java.sql.*;
import java.io.*;

public class DbBean implements java.io.Serializable{

private String dbDriver = "sun.jdbc.odbc.JdbcOdbcDriver";
private Connection dbCon;

public DbBean(){

public boolean connect() throws ClassNotFoundException,SQLException{
dbCon = DriverManager.getConnection("jdbc dbc:mybean","","");
return true;

public void close() throws SQLException{

public ResultSet execSQL(String sql) throws SQLException{

Statement s = dbCon.createStatement();
ResultSet r = s.executeQuery(sql);
return (r == null) ? null : r;

public int updateSQL(String sql) throws SQLException{
Statement s = dbCon.createStatement();
int r = s.executeUpdate(sql);
return (r == 0) ? 0 : r;


<HEAD><TITLE>DataBase Search</TITLE></HEAD>

<%@ page language="Java" import="java.sql.*" %>

<jsp:useBean id="db" scope="application" class="SQLBean.DbBean" />

<jsp:setProperty name="db" property="*" />

<h2> Results from </h2>



ResultSet rs = db.execSQL("select * from employ");
int i = db.updateSQL("UPDATE employ set fname = 'hello world' where empno='000010'");


while(rs.next()) {
<%= rs.getString("empno") %>







The error like this

org.apache.jasper.JasperException: Unable to compile class for JSPNote: sun.tools.javac.Main has been deprecated.
error: Invalid class file format in C:\Program Files\Apache Tomcat 4.0\webapps\muthu\WEB-INF\classes\SQLBean\DbBean.class. The major.minor version '49.0' is too recent for this tool to understand.

An error occurred at line: 7 in the jsp file: /database.jsp

Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\localhost\muthu\database$jsp.java:65: Class SQLBean.DbBean not found.
SQLBean.DbBean db = null;

An error occurred at line: 7 in the jsp file: /database.jsp

Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\localhost\muthu\database$jsp.java:68: Class SQLBean.DbBean not found.
db= (SQLBean.DbBean)

An error occurred at line: 7 in the jsp file: /database.jsp

Generated servlet error:
C:\Program Files\Apache Tomcat 4.0\work\localhost\muthu\database$jsp.java:73: Class SQLBean.DbBean not found.
db = (SQLBean.DbBean) java.beans.Beans.instantiate(this.getClass().getCl assLoader(), "SQLBean.DbBean");
4 errors, 1 warning

Anybody help me?
Thanx in advance

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