Question

当我尝试连接到mysql数据库时出现此错误：

遇到PHP错误严重性：警告

消息：mysqli :: real_connect（）：（HY000 / 1044）：拒绝用户访问   ” @“ localhost”到数据库“ calendar_events”

文件名：mysqli / mysqli_driver.php

行号：203

回溯：

文件：   C：\ xampp2 \ htdocs \ fullcalendar \ application \ controllers \ Calendar.php   行：7函数：__construct

文件：C：\ xampp2 \ htdocs \ fullcalendar \ index.php行：315功能：   require_once

1.index.php（视图）

<html lang="en">
    <head>
        <title>Calendar Display</title>
        <script src="<?php echo base_url(); ?>assets/fullcalendar/lib/moment.min.js"></script>
        <script src="<?php echo base_url(); ?>assets/fullcalendar/lib/jquery-ui.min.js"></script>
        <script src="<?php echo base_url(); ?>assets/fullcalendar/lib/jquery.min.js"></script>
        <link rel="stylesheet" href="<?php echo base_url(); ?>assets/fullcalendar/fullcalendar.min.css" />
        <script src="<?php echo base_url(); ?>assets/fullcalendar/fullcalendar.min.js"></script>
        <script src="<?php echo base_url(); ?>assets/fullcalendar-3.9.0/locale/es.js"></script>
    </head>
    <body>
    <div class="container">
    <div class="row">
    <div class="col-md-12">
    <h1>Calendar</h1>
    <div id="calendar">

    </div>
    </div>
    </div>
    </div>
    <!--<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>-->
    <script type="text/javascript">
        $(document).ready(function() {
        $('#calendar').fullCalendar({
           eventSources: [
             {
                 events: function(start, end, timezone, callback) {
                     $.ajax({
                     url: '<?php echo base_url() ?>calendar/get_events',
                     dataType: 'json',
                     data: {
                     // our hypothetical feed requires UNIX timestamps
                     start: start.unix(),
                     end: end.unix()
                     },
                     success: function(msg) {
                         var events = msg.events;
                         callback(events);
                     }
                     });
                 }
             },
         ]            

        });
        });
    </script>
    <style>
            #calendar{
                width: 800px;
                margin: 0px auto;
            }
    </style>

    </body>
</html>

Calendar_model.php

class Calendar_model extends CI_Model {

    public function __construct()
    {
        parent::__construct();
        $this->load->database();
    }

    public function get_events($start, $end){

        return $this->db->where("start >=", $start)->where("end <=", $end)->get("calendar_events");
    }

    public function add_event($data)
    {
        $this->db->insert("calendar_events", $data);
    }

    public function get_event($id)
    {
        return $this->db->where("ID", $id)->get("calendar_events");
    }

    public function update_event($id, $data)
    {
        $this->db->where("ID", $id)->update("calendar_events", $data);
    }

    public function delete_event($id)
    {
        $this->db->where("ID", $id)->delete("calendar_events");
    }

}

Calendar.php（控制器）

类日历扩展了CI_Controller {

public function __construct() {
    parent::__construct();
    $this->load->model("calendar_model");
}

public function index()
{
    $this->load->helper('url');
    $this->load->view('index', array());
}

 public function get_events()
 {
     // Our Start and End Dates
     $start = $this->input->get('start');
     $end = $this->input->get('end');

     $startdt = new DateTime('now'); // setup a local datetime
     $startdt->setTimestamp($start); // Set the date based on timestamp
     $start_format = $startdt->format('Y-m-d H:i:s');

     $enddt = new DateTime('now'); // setup a local datetime
     $enddt->setTimestamp($end); // Set the date based on timestamp
     $end_format = $enddt->format('Y-m-d H:i:s');

     $events = $this->calendar_model->get_events($start_format, $end_format);

     $data_events = array();

     foreach($events->result() as $r) {

         $data_events[] = array(
             "id" => $r->ID,
             "title" => $r->title,
             "description" => $r->description,
             "end" => $r->end,
             "start" => $r->start
         );
     }

     echo json_encode(array("events" => $data_events));
     exit();
 }

}

Answer 1

问题可能出在您显示的任何代码中。该错误消息表示您在数据库配置（localhost）中指定的用户无权使用calendar_events数据库。

这是数据库设置问题，而不是CodeIgniter问题。

如何调整数据库用户权限取决于您可用来管理数据库的工具。

Answer 2

我认为您应该在“ application / config / database.php”中检查数据库配置。

问题可能出在此文件中。

告诉我是否可行

我试图用codeigniter连接mysql数据库，但是看起来像这样

2 个答案: