Question

从我的控制器中，我将JSON数据返回到我的Ajax调用中，但是即使它不是错误，它也总是出现在错误部分。

jQuery.ajax({
    type: 'POST',
    url: '/yxcustomer/index/emailpreferences',
    data: {"category1": category1,"category2":category2 , "category3":category3,"category4":category4,"category5":category5,"category6":category6,"category7":category7,
           "latest1":latest1,"latest2":latest2,"latest3":latest3,"latest4":latest4,
           "frequency":frequency,
           "email":email,"firstName":firstName , "lastName":lastName},
    dataType: "json",
    success: function (data) {
        console.log("data response success prefe " + JSON.stringify(data));

    },
    error: function (error) {
        console.log("data response error prefe " + JSON.stringify(error));
    }
});

Controller code

 protected $resultJsonFactory;



 public function __construct(
    \Magento\Framework\Controller\Result\JsonFactory $resultJsonFactory,
    \Magento\Framework\App\Action\Context $context
) {
    $this->resultJsonFactory = $resultJsonFactory;
    parent::__construct($context);
}


 public function execute()
  {
    try{
       return  $this->resultJsonFactory->create()->setData(['success' => true,'contact'=>json_encode($contact) ,'message' => $this->messageManager->addSuccessMessage("Successfully updated email preferences")]);
    } catch (Exception $e) {
        return  $this->resultJsonFactory->create()->setData(['success' => false,'message' => $this->messageManager->addErrorMessage('Email preferences cannot be updated')]);            
    }
}

仍然是成功代码

$this->resultJsonFactory->create()->setData(['success' => true,'contact'=>json_encode($contact) ,'message' => $this->messageManager->addSuccessMessage("Successfully updated email preferences")])

总是出现ajax错误部分

error: function (error) {}

Ajax中的响应是

数据响应错误首选{“ readyState”：4，“ responseText”：“读取具有等于过滤器的联系人\ n {\” success \“：true，\” contact \“：\” {“ id”：“ c74668c8 -e886-4592-8950-273a7a6ab72d“，”电子邮件“：” an@gmail.com“，”状态“：”入职“，” msgPref“：” html“，”源“：” api“，” customSource“： “源”，“创建”：“ 2019-03-20T13：10：40-04：00”，“已修改”：“ 2019-03-21T03：44：36-04：00”，“已删除”：false， “ fields”：[{“ fieldId”：“ 0bc403e9000000000000000000000005c10d”，“ content”：“”}，{“ fieldId”：“ 0bc403e9000000000000000000000000000005c10f”，“ content”：“ Fluid”}，{“ fieldId”：“ 0bc403e9000000000000000000000005c10e”，“ content“：” Men“}，{” fieldId“：” 91c22871-0947-4f63-b067-4290ce18c0a0“，” content“：” Anupam“}，{” fieldId“：” 0bc403e9000000000000000000000000000005c111“，” content“：”“} ，{“ fieldId”：“ 0bc403e9000000000000000000000005c110”，“ content”：“”}，{“ fieldId”：“ 0bc403e9000000000000000000000005c113”，“ content”：“ All”}，{“ fieldId”：“ 0bc403e9000000000000000000000000000005c112”，“ content”：“ “}，{” fieldId“：” 0bc403e9000000000000000000000000000005c115“，” content“：”“}，{” fieldId“：” 0bc403e90000000 00000000000000005c114“，” content“：”新到货“}，{” fieldId“：” 0bc403e9000000000000000000000005c117“，” content“：”没关系“}，{” fieldId“：” 0bc403e9000000000000000000000005005116“，” content“：”“}，{ “ fieldId”：“ 0bc403e9000000000000000000000005c0e8”，“ content”：“”}，{“ fieldId”：“ 2b0a63f9-cb2d-4fc7-bcc5-06b30b59f8db”，“ content”：“ singh”}]，“ numSends”：0，“ numBounces“：0，” numOpens“：0，” numClicks“：0：” numConversions“：0，” conversionAmount“：0} \”，\“ message \”：{}}“，”状态“：200，” statusText“：”确定“}

我在做什么错，Magento 2是否存在问题？

Answer 1

在Magento 2中，$resultJsonFactory用于以JSON格式返回数据，并且您已经在执行正确的操作。但是，响应进入了AJAX请求的错误功能，因为从控制器开始，您将再次使用JSON编码$contact数据。因此，只需删除json_encode，如下所示：

return $this->resultJsonFactory->create()->setData([
    'success' => true,
    'contact' => $contact,
    'message' => $this->messageManager->addSuccessMessage("Successfully updated email preferences")
]);

代替：

return $this->resultJsonFactory->create()->setData([
    'success' => true,
    'contact' => json_encode($contact),
    'message' => $this->messageManager->addSuccessMessage("Successfully updated email preferences")
]);

Ajax调用始终会从控制器Magento 2返回错误消息

1 个答案: