Connecting to HeidiSql Using the JDBC DriverManager Interface

swati posted 4 years ago in Creating a connection
I am trying to connect to Heidisql Using the JDBC DriverManager Interface. But , am getting error java.lang.ClassNotFoundException


package db.connector;

//STEP 1. Import required packages
import java.sql.*;

public class DbConnection {
// JDBC driver name and database URL
static final String JDBC_DRIVER = "com.mysql.jdbc.Driver";
static final String DB_URL = "jdbc:mysql://[192.168.1.254]:3306/gm_db_algo";

// Database credentials
static final String USER = "devUser";
static final String PASS = "devUser159";

public static void main(String[] args) {
Connection conn = null;
Statement stmt = null;
try{
//STEP 2: Register JDBC driver
Class.forName("com.mysql.jdbc.Driver");

//STEP 3: Open a connection
System.out.println("Connecting to database...");
conn = DriverManager.getConnection(DB_URL,USER,PASS);

//STEP 4: Execute a query
System.out.println("Creating statement...");
stmt = conn.createStatement();
String sql;
sql = "SELECT CRED_DEBT_PORTF_ID, CRED_DEBT_PORTF_DEBT_CUST_ID FROM cred_debt_portf ";
ResultSet rs = stmt.executeQuery(sql);

//STEP 5: Extract data from result set
while(rs.next()){
//Retrieve by column name
int id = rs.getInt("id");
int age = rs.getInt("age");
// String first = rs.getString("first");
// String last = rs.getString("last");

//Display values
System.out.print("ID: " + id);
System.out.print(", Age: " + age);
//System.out.print(", First: " + first);
//System.out.println(", Last: " + last);
}
//STEP 6: Clean-up environment
rs.close();
stmt.close();
conn.close();
}catch(SQLException se){
//Handle errors for JDBC
se.printStackTrace();
}catch(Exception e){
//Handle errors for Class.forName
e.printStackTrace();
}finally{
//finally block used to close resources
try{
if(stmt!=null)
stmt.close();
}catch(SQLException se2){
}// nothing we can do
try{
if(conn!=null)
conn.close();
}catch(SQLException se){
se.printStackTrace();
}//end finally try
}//end try
System.out.println("Goodbye!");
}//end main
}//end FirstExample
kalvaro posted 4 years ago
You are not connecting to HeidiSQL. You can't connect to HeidiSQL at all; at least, not more than you can connect to Microsoft PowerPoint or Mozilla Firefox.

Apparently, you're trying to connect to MySQL Server, which is an entirely difference piece of software.
jfalch posted 4 years ago
if the error is from the Class.forName() line, you do not have the mysql jdbc driver.
it is not a part of the standard java install, but has to be downloaded from here,
and installed into your jre/lib/ext directory.

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