简单的Ajax / Codeigniter请求

Question

I'm having some issues with ajax and codeigniter. 我在Ajax和Codeigniter方面遇到一些问题。 I've already posted another question ( link to question ) and I thought I solved it, but I did not so I`m asking someone to write simple code with ajax/codeigniter that will increase number inside div/span on click. 我已经发布了另一个问题（指向问题的链接），并且我认为我已解决了问题，但是我没有这样做，我想让某人使用ajax / codeigniter编写简单的代码，从而增加点击时div / span中的数量。

I`m trying last few days to do this, but constantly getting errors..My CI setting are : 我正在尝试最近几天来执行此操作，但是不断出错。我的CI设置是：
base_url : localhost/test/ base_url： localhost/test/
index:index.php 索引：index.php
autoload:url 自动加载：网址
default controller:welcome (I left it so just for this test) 默认控制器：欢迎（我为进行此测试而保留了它）

I would be more than happy to have simple example to do this. 我将很高兴有一个简单的例子来做到这一点。 I tried also, again, but without any luck. 我也尝试过一次，但是没有任何运气。 Here's what I tried this time : 这是我这次尝试的方法：

Controller (welcome.php) 控制器（welcome.php）

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Welcome extends CI_Controller {


function __construct()
    {
        parent::__construct();
    }

public function index()
{
    $this->load->view('welcome_message');
}

function increase(){
    $increase = $this->input->post('increase');
    echo increase++;
}
}

JS (Ajax) JS（Ajax）

function increase(){
var number = parseInt($('#number').html()) + 1;
$.ajax({
        type: 'POST',
        url: 'localhost/test/welcome/increase',
        data: { increase:number },
        success:function(response){
            $('#number').html(response);
        }
});

}

View (HTML/CSS) 查看（HTML / CSS）

<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript"></script>
<script type="text/javascript" src="<?php echo base_url();?>assets/js/jquery_v1.9.1.js"> </script>
<script type="text/javascript" src="<?php echo base_url();?>assets/js/script.js">            </script>
<style type="text/css">
#number {
display: block;
text-align: center;
width: 100px;
height: 30px;
margin: auto auto;
line-height: 30px;
border: 1px solid #999999;
border-radius: 5px;
}

</style>
</head>
<body>
    <span id="number" onclick="increase()">0</span>
</body>
</html>

I'm using latest xampp on windows 7. Error that I get when I click on span - POST http://localhost/test/localhost/test/welcome/increase 404 (Not Found) 我在Windows 7上使用最新的xampp。单击跨度时出现错误POST http://localhost/test/localhost/test/welcome/increase 404 (Not Found)

Answer 1

You must submit the CSRF token from cookies otherwise the request will be invalid, if you have CSRF enabled in config.php. 您必须从cookie提交CSRF令牌，否则，如果在config.php中启用了CSRF，则请求将无效。

You can use this plugin to retrieve cookies in javascript. 您可以使用此插件来检索JavaScript中的Cookie。 And simply pass it to CI. 只需将其传递给CI。

ci_token ci_token

and 和

ci_cookie ci_cookie

keys may be different and can be found in config.php 密钥可能不同，可以在config.php中找到

I would also suggest setting up a route for the request and using 我还建议为请求设置一条路线并使用

site_url() site_url（）

over 过度

base_url() base_url（）

var SITE = "<?php echo site_url();?>" // GLOBAL variable so your javascripts can be external

- --

var data = { 'ci_token' : $.cookies.get('ci_cookie'), 'increase' : parseInt(number)}
$.ajax({
    url : SITE + "/link/to/controller/method",
    data : data,
});

Answer 2

use site_url() of codeigniter 使用codeigniter的site_url()

 function increase(){
   var number = parseInt($('#number').html()) + 1;  
   $.ajax({
     type: 'POST',
     url: '<?php echo site_url("welcome/increase")?>',
     data: { increse:number }, //<--- here should be increase
     success:function(response){
        $('#number').html(response);
     }
  });

} }

however, adding http:// in front of localhost should work 但是，在本地主机前面添加http://应该可以

 url: 'http://localhost/test/welcome/increase',

but it is always better and recommended to use site_url() if you are calling a controller in CI...so that this won't give you errors while when you upload it to live server. 但是最好还是建议使用site_url()如果您正在CI中调用控制器），这样在将其上载到实时服务器时不会出现错误。

Answer 3

In your ajax, don't use external link for your JS just use internal. 在您的ajax中，请勿为JS使用外部链接，而应使用内部链接。

Make sure that you set your $config['base_url'] = http://localhost/test/ in config.php 确保在config.php中设置$ config ['base_url'] = http://localhost/test/

function increase(){
    var number = parseInt($('#number').html()) + 1;
    $.ajax({
        type: 'POST',
        url: '<?php echo base_url()?>welcome/increase',
        data: { increase:number },
        success:function(response){
           $('#number').html(response);
        }
   });

}

Answer 4

<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript"></script>
<script type="text/javascript" src="<?php echo base_url();?>assets/js/jquery_v1.9.1.js"> </script>
<script type="text/javascript" src="<?php echo base_url();?>assets/js/script.js">            </script>
<style type="text/css">
  #number {
    display: block;
    text-align: center;
    width: 100px;
    height: 30px;
    margin: auto auto;
    line-height: 30px;
    border: 1px solid #999999;
    border-radius: 5px;
  }

</style>
</head>
<script>
function increase(){
  var number = parseInt($('#number').html()) + 1;
  $.ajax({
      type: 'POST',
      url: '<?php echo base_url()?>welcome/increase',
      data: { increase:number },
      success:function(response){
         $('#number').html(response);
      }
  });

}
</script>
<body>
<span id="number" onclick="increase()">0</span>
</body>
</html>

Answer 5

First You should define your site base_url in application/config file then use this base_url with your ajax page call from where your call goes. 首先，您应该在application / config文件中定义站点base_url，然后将此base_url与调用所在的ajax页面调用一起使用。 Suppose your base_url is http://localhost/test/ 假设您的base_url是http://localhost/test/

function increase(){
   var number = parseInt($('#number').html()) + 1;
   $.post('<?php echo base_url()?>welcome/increase',{number :number},function(response){
          $('#number').html(response);
   });    
}

then change your increase function in controller like this 然后像这样更改控制器中的增加功能

function increase(){
   $increase = $_POST['number'];
echo increase++;

} }

Answer 6

try this : 尝试这个：

function increase(){
        var number = parseInt($('#number').html()) + 1;
        $.ajax({
            type: 'POST',
            url: 'localhost/test/Welcome/increase/',
            data: "increase=" + number,
            dataType: "text",
            success:function(response){
                $('#number').html(response);
            }
        });

 }

Answer 7

If you are using this ajax in a .php file than you should do something like this to your url: 如果您在.php文件中使用此Ajax，则应该对网址执行以下操作：

function increase(){
var number = parseInt($('#number').html()) + 1;
var base_url = "<?php echo base_url();?>";
$.ajax({
    type: 'POST',
    url: base_url+'welcome/increase',
    data: { increase:number },
    success:function(response){
        $('#number').html(response);
    }
  });
}

OR if you are doing this in a .js file than you need to add this line inside your head tag 或者，如果您要在.js文件中执行此操作，则需要在head标签内添加此行

<script> var base_url = "<?php echo base_url();?>";</script>

And than use this : 并且比使用这个：

function increase(){
var number = parseInt($('#number').html()) + 1;
$.ajax({
    type: 'POST',
    url: base_url+'welcome/increase',
    data: { increase:number },
    success:function(response){
        $('#number').html(response);
    }
  });
}

Hope that it resolves the problem. 希望它能解决问题。 However, its always a good idea when developing in the local environment to set the base_url in config.php like this : 但是，当在本地环境中进行开发时，像这样在config.php中设置base_url始终是一个好主意：

$root = "http://".$_SERVER['HTTP_HOST'];
$root .= str_replace(basename($_SERVER['SCRIPT_NAME']),"",$_SERVER['SCRIPT_NAME']);
$config['base_url']    = $root;

Answer 8

View::::::    
<!DOCTYPE html>
<html lang="en">
<head>
<script type="text/javascript" src="<?php echo base_url();?>css/jquery.js"> </script>
<style type="text/css">
#number {
display: block;
text-align: center;
width: 100px;
height: 30px;
margin: 50px auto;
line-height: 30px;
border: 1px solid #999;
border-radius: 5px;
}
body{
cursor: default;
}
</style>
</head>
<script>
function increase(){
var number = parseInt($('#number').html());
$.ajax({
  type: 'POST',
  url: '<?php echo base_url()?>main/samp_data',
  data: { increase:number },
  success:function(response){
     $('#number').html(response);
  }
  });
 }
</script>
<body>
<span id="number" onclick="increase()">0</span>
</body>
</html>




Controller::::::
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class Main extends CI_Controller {

    public function index(){
        $this -> load -> view('sample_view');
    }

    public function samp_data(){
        $increase = $this->input->post('increase');
        echo ++$increase;
    }
}

简单的Ajax / Codeigniter请求

问题描述

8 个解决方案

解决方案1
1 2013-05-05 11:44:06

解决方案2
0 2013-05-04 21:01:23

解决方案3
0 2013-05-05 09:54:37

解决方案4
0 2013-05-05 10:03:52

解决方案5
0 2013-08-03 01:37:37

解决方案6
0 2017-02-04 18:22:21

解决方案7
0 2017-02-26 09:51:27

解决方案8
-1 2014-08-28 08:49:14

简单的Ajax / Codeigniter请求

问题描述

8 个解决方案

解决方案1 1 2013-05-05 11:44:06

解决方案2 0 2013-05-04 21:01:23

解决方案3 0 2013-05-05 09:54:37

解决方案4 0 2013-05-05 10:03:52

解决方案5 0 2013-08-03 01:37:37

解决方案6 0 2017-02-04 18:22:21

解决方案7 0 2017-02-26 09:51:27

解决方案8 -1 2014-08-28 08:49:14

解决方案1
1 2013-05-05 11:44:06

解决方案2
0 2013-05-04 21:01:23

解决方案3
0 2013-05-05 09:54:37

解决方案4
0 2013-05-05 10:03:52

解决方案5
0 2013-08-03 01:37:37

解决方案6
0 2017-02-04 18:22:21

解决方案7
0 2017-02-26 09:51:27

解决方案8
-1 2014-08-28 08:49:14