[英]Sending status data via JSON response to POST - parse via JavaScript
I have a PHP code for uploading files, which works fine, and as final outcome I have sent JSON response with uploading status which I'm not able to retrieve. 我有一个用于上传文件的PHP代码,效果很好,作为最终结果,我发送了带有无法上传的上传状态的JSON响应。
After uploading file (POST) my response looks like: 上传文件(POST)后,我的响应如下:
{"html_content":"<p>File was uploaded<\/p>"}
PHP uploader code looks like: PHP上传器代码如下所示:
if (!is_file($targetFile)) {
move_uploaded_file($tempFile,$targetFile);
$html_content="<p>File was uploaded</p>";
}
else {
$html_content="<p>You have uploaded duplicate.</p>";
move_uploaded_file($tempFile,$targetFile);
}
$json_array=array('html_content'=>$html_content);
header('Content-type: text/json');
header('Content-type: application/json');
echo json_encode($json_array);
and JavaScript main code to get message displayed: 和JavaScript主要代码来获取显示的消息:
this.on("success", function(file,responseText) {
$.ajax({
dataType: 'json',
success: function (response) {
var htmlElement = document.createElement("div");
htmlElement.setAttribute("class","success-message");
var responseText = response.html_content;
var messageText = document.createTextNode(responseText);
htmlElement.appendChild(messageText);
file.previewTemplate.appendChild(htmlElement);
console.log(response.html_content);
}
});
});
When I will unwrap above JS from AJAX part and set variable responseText
as a static all works fine. 当我从AJAX部分打开JS上方的包装并将变量
responseText
设置为静态时,一切正常。
Also when I will not use AJAX and just output console.log(responseText);
另外,当我不使用AJAX并仅输出
console.log(responseText);
I'm getting this in the console: 我在控制台中得到这个:
Object {html_content: "<p>File was uploaded</p>"}
Any clue what I have missed in my case? 有什么线索让我错过了吗?
You're not sending a request to your PHP server. 您没有向您的PHP服务器发送请求。 Specify URL argument.
指定URL参数。
$.ajax({url: "your_php_file",
dataType: 'json',
success: function (response) {
...
}
});
Or even better: 甚至更好:
$.getJSON( "your_php_file", function( data ) { ... });
OK, got it solved. 好,解决了。 JavaScript code looks like
JavaScript代码看起来像
this.on("success", function(file,responseText) {
str = JSON.stringify(responseText);
responseMessage = $.parseJSON(str);
var htmlElement = document.createElement("div");
htmlElement.setAttribute("class","success-message");
htmlElement.innerHTML = responseMessage.html_content;
file.previewTemplate.appendChild(htmlElement);
});
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