Display the column name using DBCP


 

Display the column name using DBCP

This tutorial demonstrate how to display column name of the table using DBCP.

This tutorial demonstrate how to display column name of the table using DBCP.

Code:

import java.sql.*;
import org.apache.commons.dbcp.BasicDataSource;

class GetColumnName {
  public static void main(String[] args) {
    BasicDataSource bds = new BasicDataSource();
    bds.setDriverClassName("com.mysql.jdbc.Driver");
    bds.setUrl("jdbc:mysql://localhost:3306/mydb");
    bds.setUsername("root");
    bds.setPassword("");
    try {
      Connection con = bds.getConnection();
      try {
        Statement st = con.createStatement();
        ResultSet rs = st.executeQuery("SELECT * FROM student");
        ResultSetMetaData md = rs.getMetaData();
        int col = md.getColumnCount();
        System.out.println("Number of Column : " + col);
        System.out.println("Columns Name: ");
        for (int i = 1; i <= col; i++) {
          String col_name = md.getColumnName(i);
          System.out.println(col_name);
        }
        con.close();
      catch (SQLException s) {
        System.out.println("SQL code does not execute.");
      }
    catch (Exception e) {
      e.printStackTrace();
    }
  }
}

Directory structure of files:

In the lib folder place all required jar files ie. commons-collections.jar, commons-dbcp.jar, commons-pool.jar, j2ee.jar and mysql-connector-java-5.1.7-bin.jar

In the pathset.bat write following statement

set classpath=.;lib/commons-collections.jar;lib/commons-dbcp.jar;lib/commons-pool.jar;lib/j2ee.jar;lib/mysql-connector-java-5.1.7-bin.jar

Output:

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