MySqlTest.java

import java.sql.Statement;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
 
public class MySqlTest {
 
    private final static String dbUser = "dbo_java";
    private final static String dbPass = "java_test";
    private final static String dbHost = "192.168.1.111";
    private final static String dbName = "java";
 
    public static void main(String[] args) {
        Connection conn = null;
 
        try {
            Class.forName("com.mysql.jdbc.Driver").newInstance();
            conn = DriverManager.getConnection("jdbc:mysql://" + dbHost + "/" + dbName, dbUser, dbPass);
 
            System.out.println("Database connection established");
 
            Statement s = conn.createStatement();
            s.executeQuery("SELECT * FROM test_table");
 
            ResultSet rs = s.getResultSet();
            while (rs.next()) {
                int id = rs.getInt("id");
                String name = rs.getString("name");
 
                System.out.println("id:" + id);
                System.out.println("name:" + name);
            }
            rs.close();
            s.close();
        } catch (Exception e) {
            System.err.println("Cannot connect to database server:" + e.getMessage());
        } finally {
            if (conn != null) {
                try {
                    conn.close();
                } catch (Exception e) {
                    System.err.println("Cannot close connection to database:" + e.getMessage());
                }
            }
        }
    }
}

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