Urgent - Servlet with Property file

Question

Hi all,
I have a servlet which ueses a property file to get the Database information such as Driver, URL etc. The content of the property file is
dbDriver=sun.jdbc.odbc.JdbcOdbcDriver
dbDSN=jdbc:odbc:Sundar
dbUser=
dbPassword=
The servlet has the following code to get connection with the DB
Connection con;
Statement stmt;
     String s = null;
     String dbDriver="";
     String dbDSN="";
     String dbUser="";
     String dbPassword="";     
     public void init()
     try {
String propsfilename = "db.props";
InputStream is = getClass().getResourceAsStream("/" + propsfilename);
     Properties p = new Properties();
     p.load(is);
     dbDriver = p.getProperty("dbDriver");
     dbDSN = p.getProperty("dbDSN");
     dbUser = p.getProperty("dbUser");
     dbPassword = p.getProperty("dbPassword");
} catch (Exception e) {
          throw new RuntimeException("UNABLE TO INITIALIZE, EXITING...");
public String DataBaseConnection()
     init();          
try
     Class.forName(dbDriver);               
     con = DriverManager.getConnection(dbDSN,dbUser,dbPassword);
stmt = con.createStatement();
catch (ClassNotFoundException e1)
e1.printStackTrace();
catch (SQLException e2)
e2.printStackTrace();
The following exception is thrown when i access the servlet through the browser.
java.lang.ClassNotFoundException: sun/jdbc/odbc/JdbcOdbcDriver
     at java.lang.Class.forName0(Native Method)
     at java.lang.Class.forName(Class.java:120)
     at DataTrans.DataBaseTrans.DataBaseConnection(DataBaseTrans.java:52)
     at sitespider.searchlinks(sitespider.java:207)
     at sitespider.doGet(sitespider.java:42)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
     at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1013)
     at allaire.jrun.servlet.JRunSE.runServlet(../servlet/JRunSE.java:925)
     at allaire.jrun.servlet.JRunNamedDispatcher.forward(../servlet/JRunNamedDispatcher.java:34)
     at allaire.jrun.servlet.Invoker.service(../servlet/Invoker.java:84)
     at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1013)
     at allaire.jrun.servlet.JRunSE.runServlet(../servlet/JRunSE.java:925)
     at allaire.jrun.servlet.JRunRequestDispatcher.forward(../servlet/JRunRequestDispatcher.java:88)
     at allaire.jrun.servlet.JRunSE.service(../servlet/JRunSE.java:1131)
     at allaire.jrun.servlet.JvmContext.dispatch(../servlet/JvmContext.java:330)
     at allaire.jrun.jrpp.ProxyEndpoint.run(../jrpp/ProxyEndpoint.java:382)
     at allaire.jrun.ThreadPool.run(../ThreadPool.java:272)
     at allaire.jrun.WorkerThread.run(../WorkerThread.java:75)
I am using the following servers
IIS 5.0 with JRun 3.1
Adv tanx
Sundar

Answer 1

Hi
I tested your code . The problem is that the property file have some spaces after the string. Use The trim(); function or check the blank spaces in the property file.
hope it will help
Mallesh