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- SQLException: java.sql.SQLException: java.lang.ClassCastException: java.math.BigInteger cannot be cast to java.lang.Long
- import static java.lang.System.out;
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.PreparedStatement;
- import java.sql.ResultSet;
- import java.sql.SQLException;
- import java.sql.Connection;
- import java.sql.DriverManager;
- import java.sql.SQLException;
- public class ConexaoMySQL {
- private String user = "user";
- private String pass = "pass";
- private String dbClass = "com.mysql.jdbc.Driver";
- private String dbDriver = "jdbc:mysql://db4free.net:3307/corrente";
- private Connection conn = null;
- public boolean connect() {
- boolean done = false;
- //load driver
- try {
- Class.forName(dbClass).newInstance();
- System.out.println("driver loaded"); // THIS IS BEING RETURNED
- } catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
- System.err.println(ex);
- }
- // Connection
- try {
- conn = DriverManager.getConnection(dbDriver, user, pass);
- System.out.println("connected"); // THIS IS NOT BEING RETURNED
- done = true;
- } catch (SQLException ex) {
- System.out.println("SQLException: " + ex);
- }
- return done;
- }
- public static void main(String[] args) {
- new ConexaoMySQL().connect();
- }
- }
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