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 public static void main(String[] args) {
  Connection conn = null;
  Statement stmt = null;
    try {
      //第一步：加載MySQL的JDBC的驅(qū)動
        Class.forName("com.mysql.jdbc.Driver"); 
       //取得連接的url,能訪問MySQL數(shù)據(jù)庫的用戶名,密碼；數(shù)據(jù)庫名
         String url = "jdbc:mysql://localhost:3306/2";
         String user = "root";
         String password = "19870714";
       //第二步：創(chuàng)建與MySQL數(shù)據(jù)庫的連接類的實(shí)例
         conn = DriverManager.getConnection(url, user, password);
       //第三步：用conn創(chuàng)建Statement對象類實(shí)例 stmt
         stmt = conn.createStatement();
          String sql ="insert into student values(3,'jjuan','m')";
         stmt.executeUpdate(sql);
    } catch (ClassNotFoundException e){  
    //加載JDBC錯誤,所要用的驅(qū)動沒有找到
     System.out.println("驅(qū)動加載錯誤");
  }catch (SQLException ex){
   //顯示數(shù)據(jù)庫連接錯誤或查詢錯誤
    System.err.println("SQLException:"+ex.getMessage());
  }finally {
    try{
      
        if(stmt != null) {
         stmt.close();
         stmt = null;
        }
        if(conn != null) {
         conn.close();
         conn = null;
        }
    }catch(SQLException e) {
    System.err.println("SQLException:"+e.getMessage());
    }
  }
}