Showing Error for Prepared stmt in a jsp

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M.Santosh kumar
Showing Error for Prepared stmt in a jsp
0 Answer(s)      4 years and 8 months ago
Posted in : Java Beginners

i hav a task to connect jsp to oracel database using preparestatement and gettin an error showin dat prepared statement obj cant be created pstmt is nt resloved here are the files

index.jsp

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
    <script language="JavaScript" type="text/JavaScript">
    function validateForm()
    {
    var x=document.forms["myForm"]["Login"].value;
    if (x==null || x=="")
      {
      alert("Login must be filled out");
      return false;
      }
    }
    </script>

    </head>
    <body bgcolor=pink>
    <center><h1>DiggIn</h1>
    <p><b>Welcome to DiggIn</b> </p>
    <form action="Display.jsp" method="post">
    <table width="276" height="74" border="0">
      <tr>
        <td width="60" height="53">Login</td>
         <td>:</td>
        <td width="199"><input type="text" name="Login" /></td>
      </tr>
      <tr>
        <td width="60" height="42">Password</td>
        <td>:</td>
        <td><input type="password" name="Password" /></td>
      </tr>
      <tr>
        <td width="60" height="42">Qualification</td>
        <td>:</td>
        <td><input type="text" name="Qualification" /></td>
      </tr>
      <tr>
        <td width="60" height="42">City</td>
        <td>:</td>
        <td><input type="text" name="City" /></td>
      </tr>
    </table><form action=""><input type="submit" value="SignUp!"></form>
    <form action=""><input type="button" name="SignIn" value="SignIn" /></form>

    </center>
    </form>
    </body>
    </html>

Display.jsp

    <html>
    <head>
    </head>
    <%@ page import="java.sql.*"%>
    <body bgcolor="aqua">
    <center>
    <%
    try{
    Class.forName("oracle.jdbc.driver.OracleDriver");
    Connection con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe","system","abc");
    PreparedStatement pstmt=null;
    String SQL="Insert into Login values(?,?,?,?)";
    pstmt=con.prepareStatement(SQL);
    }
    catch(Exception e){
      e.printStackTrace();
    }
    String Login=request.getParameter("Login");
    String Password=request.getParameter("Password");
    String Qualification=request.getParameter("Qualification");
    String City=request.getParameter("City");
    out.println(Login);
    out.println(Password);
    out.println(Qualification);
    out.println(City);
    pstmt.setString(1,Login);
    pstmt.setString(2,Password);
    pstmt.setString(3,Qualification);
    pstmt.setString(4,City);
    String result=pstmt.executeUpdate();
    %>
    <a href="user.html">Update</a>
    </center>
    </body>
    </html>

    Error:
    HTTP Status 500 - 


type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

org.apache.jasper.JasperException: Unable to compile class for JSP: 

An error occurred at line: 26 in the jsp file: /Display.jsp
pstmt cannot be resolved
23: out.println(Password);
24: out.println(Qualification);
25: out.println(City);
26: pstmt.setString(1,Login);
27: pstmt.setString(2,Password);
28: pstmt.setString(3,Qualification);
29: pstmt.setString(4,City);


An error occurred at line: 27 in the jsp file: /Display.jsp
pstmt cannot be resolved
24: out.println(Qualification);
25: out.println(City);
26: pstmt.setString(1,Login);
27: pstmt.setString(2,Password);
28: pstmt.setString(3,Qualification);
29: pstmt.setString(4,City);
30: String result=pstmt.executeUpdate();


An error occurred at line: 28 in the jsp file: /Display.jsp
pstmt cannot be resolved
25: out.println(City);
26: pstmt.setString(1,Login);
27: pstmt.setString(2,Password);
28: pstmt.setString(3,Qualification);
29: pstmt.setString(4,City);
30: String result=pstmt.executeUpdate();
31: %>


An error occurred at line: 29 in the jsp file: /Display.jsp
pstmt cannot be resolved
26: pstmt.setString(1,Login);
27: pstmt.setString(2,Password);
28: pstmt.setString(3,Qualification);
29: pstmt.setString(4,City);
30: String result=pstmt.executeUpdate();
31: %>
32: <a href="user.html">Update</a>


An error occurred at line: 30 in the jsp file: /Display.jsp
pstmt cannot be resolved
27: pstmt.setString(2,Password);
28: pstmt.setString(3,Qualification);
29: pstmt.setString(4,City);
30: String result=pstmt.executeUpdate();
31: %>
32: <a href="user.html">Update</a>
33: </center>


Stacktrace:
    org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)
    org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)
    org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:349)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:327)
    org.apache.jasper.compiler.Compiler.compile(Compiler.java:314)
    org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
    org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
    org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
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