Help me in MS-Access-Java-MS-Excel combination

Question

i have to read a spreadsheet using Java & store in Access. my code is unable to do that,so modify the given java code for the above requirements. Don't import the spreadsheet directly from Excel to Access.
// The Java Code.
import java.sql.*;
import java.io.*;
class linkrec{
public static void main(String args[]) throws IOException {
for(int j=0;j<1;j++){
InputStream f= new FileInputStream("D:\\Backup\\BACK UP OF SCADA\\avt\\csv.dat");
int i;
do{  i=f.read();
     if(i!= -1)
     System.out.print((char) i);
}while(i!= -1); //End OF Do-While Loop.
f.close();
} //End Of For Loop
class connect throws IOException {
public void connect (int f){
try
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:dacc");
Statement stmt = con.createStatement();
//stmt.executeUpdate("insert into sheet2 values(10:10,48.20,01556,01129,00177,00400,04076,01668,01336,02830)");
stmt.executeUpdate("insert into sheet2 values(f)");
ResultSet rs = stmt.executeQuery("select * from sheet2");
while(rs.next())
     double Mytime = rs.getDouble(1);
     double Gridfreq= rs.getDouble(2);
     int ntpc_gen = rs.getInt(3);
     int nlcii_gen = rs.getInt(4);
     int maps_gen = rs.getInt(5);
     int kaps_gen = rs.getInt(6);
     int ap_gen = rs.getInt(7);
     int kar_gen= rs.getInt(8);
     int ker_gen = rs.getInt(9);
     int tn_gen = rs.getInt(10);
     stmt.close();
     con.close();
     System.out.println("Records Successfully Inserted");
     }catch(Exception e)
     e.printStackTrace();
// The spreadsheet of Excel.
MYTIME,GRID_FREQ,NTPC_GEN,NLCII_GEN,MAPS_GEN,KAPS_GEN,AP_GEN,KAR_GEN,KER_GEN,TN_GEN,AP_DEM,KAR_DEM,KER_DEM,TN_DEM,PONDY_DEM,GOVA_DEM,AP_DWL,KER_DWL,TN_DWL,PDY_DWL,GOA_DWL,AP_SCH,KAR_SCH,KER_SCH,TN_SCH,PDY_SCH,GOVA_SCH,EAST_GZK_EXC,EAST_USIL_EXC,WEST_RDM_EXC,WEST_AMD_EXC
2/8/01
10:10,48.20,01556,01129,00177,00400,04076,01668,01336,02830,04834,02528,01671,04093,00106,00120,00757,00860,00335,01263,00106,00120,01042,00736,00378,00982,00154,00070,00474,00000,-0000,00000

Answer 1

Here's how I would do it - since I don't know the datatypes of the columns in your access database I will assume that MY_TIME is a String value, GRID_FREQ is a Double and the rest are Integers. You can then modify the parsing as you wish if the datatypes are different.
Connection conn = null;
BufferedReader reader = null;
try
  reader = new BufferedReader(new FileReader(filename));
  // First line contains names of columns so just skip that
  reader.readLine();
  StringBuffer sql = new StringBuffer();
  sql.append("INSERT INTO sheet2 (");
  sql.append("MY_TIME,");
  sql.append("GRID_FREQ,");
  // put the rest of the column names in here!
  sql.append(") VALUES (");
  // change this to have one '?' for each column
  sql.append("?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ..., ?");
  sql.append(")");
  conn = DriverManager.getConnection(...);
  PreparedStatement pstmt = conn.prepareStatement(sql.toString());
  // Read in the rest of the lines from the file - inserting a row for each
  String line;
  while(true)
    line = reader.readLine();
    st = new StringTokenizer(line, ",", false);
    // set up the statement for creating the new row
    pstmt.setString(1, st.nextToken());
    pstmt.setDouble(2, Double.parseDouble(st.nextToken()));
    pstmt.setInt(3, Integer.parseInt(st.nextToken()));
    // etc for all the other columns you need to read
    // create the row
    pstmt.executeUpdate();
finally
  try
    reader.close();
  catch(Exception e)
  try
    conn.close();
  catch(Exception e)
}I've not tried it so you might need to experiment to get it to work. If you don't understand any of it just ask.
Hope this helps.