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      2. 在 yii2 中访问 post json 数据时出错

        Error in accessing post json data in yii2(在 yii2 中访问 post json 数据时出错)
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                • 本文介绍了在 yii2 中访问 post json 数据时出错的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!

                  问题描述

                  我正在使用 ajax 请求将数据传递给 yii2,但我不断收到 500 错误

                  Am passing data to yii2 using ajax request but i keep on getting a 500 error

                  这是ajax请求代码:

                  This is the ajax request code:

                  <?php 
                   $script = <<< JS
                  
                       $('form#forward_pr').on('beforeSubmit', function(e){
                      var keys = $('#grid').yiiGridView('getSelectedRows');
                       $.post({
                         url: "forwardpr", // your controller action
                         dataType: 'json',
                         data: {keylist: keys},
                         success: function(data) {
                            alert('I did it! Processed checked rows.')
                         },
                       error: function(err){
                         console.log("server error");
                         }
                      });
                         return false;
                      }  ) ;
                  
                      JS;
                      $this->registerJS($script);
                   ?>
                  

                  当我执行 console.log(keys) 这会返回

                  When i do console.log(keys) this returns

                  [0, 1]
                  

                  这是我的控制器代码:

                  if (Yii::$app->request->post()) {
                           echo $post = json_encode($_POST['keys']);
                            if (isset($_POST['keylist'])) {
                                  $keys = yiihelpersJson::decode($_POST['keylist']);
                                print_r($keys);
                              }else{
                                echo "1";
                            }
                  

                  上面总是执行post请求的错误部分,可能有什么问题;

                  The above always executes the error part of post request, What could be wrong;

                  推荐答案

                  您将 JSON 作为编码(发布)数据体发送,而不是键值对.所以你的方法行不通.

                  You are sending your JSON as encoded (post) data body, not key value pairs. So your approach is not working this way.

                  有两种方法可以解决这个问题:

                  There are two options to fix this:

                  1. 将您的控制器重构为RESTful 服务
                  2. 在您的控制器中使用 JSON 正文而不是 POST 参数

                  虽然从长远来看第一个选项是首选,但第二个选项作为快速解决方案非常简单.

                  While the first option is preferred in the long run, the second option is pretty simple as a quick fix.

                  首先,确保您将应用配置为解析 JSON 正文内容.在 config.php 中添加这个到 components 数组:

                  First, make sure you configure your app to parse JSON body conten. IN config.php add this to the components array:

                  'request' => [
                      'parsers' => [
                          'application/json' => 'yiiwebJsonParser',
                      ]
                  ]
                  

                  然后在您的控制器中使用它来获取 JSON 参数:

                  Then in your controller use this to get the JSON parameters:

                  $model->load(Yii::$app->getRequest()->getBodyParams());
                  

                  这篇关于在 yii2 中访问 post json 数据时出错的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持跟版网!

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