id creation

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id creation
0 Answer(s)      4 years and 8 months ago
Posted in : JSP-Servlet

CREATE TABLE mohan2 ( sno bigint(20) NOT NULL AUTO_INCREMENT, name varchar(30) NOT NULL, sal int(30) NOT NULL, eid varchar(30) NOT NULL, PRIMARY KEY (sno,eid) )

import java.sql.*;
import java.util.*;
public class sample3
{
 static int Generate(String name1,int t)
{
   int len=5;
   int x=0;
  Connection conn = null;
  Statement st=null;
  String url = "jdbc:mysql://localhost:3306/";
  String dbName = "test";
  String driver = "com.mysql.jdbc.Driver";
  String userName = "root"; 
  String password = "password";
  String eid="";
  try 
  {
  Class.forName(driver).newInstance();
  conn = DriverManager.getConnection(url+dbName,userName,password);
  st=conn.createStatement();
  ResultSet rs=st.executeQuery("select max(sno) from mohan2");
  rs.next();
  int s=rs.getInt(1);
  System.out.println(s);
  s=s+1;
  StringBuffer sb = new StringBuffer(len);
  sb.append("P");
  len=len-1;
  String v=String.valueOf(s);
  int p=v.length();
  len=len-p;
  while(len--!=0)
    sb.append("0");
  sb.append(v);
   eid=sb.toString();
  rs.close();
  st.close();
   st=conn.createStatement();
  x=st.executeUpdate("insert into mohan2(eid,name,sal) values('"+eid+"','"+name1+"',"+t+")"); <br />
   st.close();
   conn.close();
  }
  catch(Exception e)
  {
    e.printStackTrace();
   }
    return x;
}
public static void main(String[] args) 
   {
        Scanner s=new Scanner(System.in);
        System.out.println("Enter emp name:");
        String str=s.next();
        System.out.println("Enter emp sal:");
        int sal=s.nextInt();
        //sample3 s1=new sample3();
        int x=Generate(str,sal);
        if(x==1)
            System.out.println("Data is inserted");
       else
           System.out.println("data is not inserted");
   }
}

how can write this program in jsp its working on console but in jsp it shown internal error? how to write above code in jsp please help me i will sumbit the project in two days please sir

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