Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class Main {
    public static Connection getConnection() throws Exception {
        String driver = "com.mysql.jdbc.Driver";
        String url = "jdbc:mysql://localhost:3306/databaseName";
        String username = "username";
        String password = "password";
        Class.forName(driver);
        Connection conn = DriverManager.getConnection(url, username, password);
        return conn;
    }

    public static void main(String[] args) throws Exception {
        Connection conn = null;
        PreparedStatement pstmt = null;
        try {
            conn = getConnection();
            String query = "insert into message values(?, ?, ?)";

            pstmt = conn.prepareStatement(query); // create a statement
            pstmt.setInt(1, 5); // set input parameter 1
            pstmt.setString(2, "head5"); // set input parameter 2
            pstmt.setString(3, "data5"); // set input parameter 3
            pstmt.executeUpdate(); // execute insert statement
            pstmt = conn.prepareStatement("insert into msgtag values(?, ?, ?)"); // create a statement
            pstmt.setInt(1, 55); // set input parameter 1
            pstmt.setString(2, "tag5"); // set input parameter 2
            pstmt.setInt(3, 5); // set input parameter 3
            pstmt.executeUpdate(); // execute insert statement
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            pstmt.close();
            conn.close();
        }
    }
}