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();
}
}
}
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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:
