【Java】操作mysql資料庫

package bd;
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
 
public class JDBCTest {
    public static void main(String[] args) {
 
        // 驅動程式名
        String driver = "com.mysql.jdbc.Driver";
        // URL指向要訪問的資料庫名
        String url = "jdbc:mysql://192.168.238.10:3306/F4base";
        // MySQL配置時的使用者名稱
        String user = "";
        // MySQL配置時的密碼
        String password = "";
        try {
            // 載入驅動程式
            Class.forName(driver);
            // 連續資料庫
            Connection conn = DriverManager.getConnection(url, user, password);
            if (!conn.isClosed())
                System.out.println("Succeeded connecting to the Database!");
            // statement用來執行SQL語句
            Statement statement = conn.createStatement();
 
            for(int i=0;i<10;i++)
            {
                String insertSql = "insert into Test(cmd,name,time) values("+i+","+(2*i)+",20170402)";
        //      statement.executeUpdate(insertSql);
            }
            // 要執行的SQL語句
            String sql = "select * from Test";
            // 結果集
            ResultSet rs = statement.executeQuery(sql);
        //  String name = null;
 
            while (rs.next())
            {
                System.out.println(rs.getString("cmd") + "  " + rs.getString("name") + "  "+ rs.getString("time"));
            }
             
            rs.close();
            conn.close();
 
        } catch (ClassNotFoundException e) {
            System.out.println("Sorry,can`t find the Driver!");
            e.printStackTrace();
        } catch (SQLException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}