Javascript Vanilla AJAX请求通过了Laravel验证,但值不是';在控制器中不可用
我正在尝试使用AJAX(vanilla JS)向Laravel 5.5控制器提交表单,该控制器将搜索Amazon产品API AJAX正在提交正确的关键字和类别输入,请求正在传递一个表单请求,该表单请求需要关键字和类别,但关键字和类别在控制器中不可用。我确实从控制器得到了占位符响应 开发者工具中Chrome的网络选项卡中的请求负载显示AJAX正在发送正确的条款 HTML表单Javascript Vanilla AJAX请求通过了Laravel验证,但值不是';在控制器中不可用,javascript,php,ajax,laravel,Javascript,Php,Ajax,Laravel,我正在尝试使用AJAX(vanilla JS)向Laravel 5.5控制器提交表单,该控制器将搜索Amazon产品API AJAX正在提交正确的关键字和类别输入,请求正在传递一个表单请求,该表单请求需要关键字和类别,但关键字和类别在控制器中不可用。我确实从控制器得到了占位符响应 开发者工具中Chrome的网络选项卡中的请求负载显示AJAX正在发送正确的条款 HTML表单 <form method="POST" action="http://local.example.com/api/pr
<form method="POST" action="http://local.example.com/api/products/search" accept-charset="UTF-8" id="product-search-form">
<input name="_token" type="hidden" value="qcXA3xVIoltX9tSpeJeWuKVa3alUkq1p5tuIlKJ5">
<div class="form-group">
<label for="keywords" class="required">Keywords</label>
<input id="keywords" placeholder="Enter keywords" aria-required name="keywords" type="text">
</div>
<div class="form-group ">
<label for="category">Category</label>
<select id="category" name="category">
<option selected="selected" value="">Choose a category...</option>
<option value="All">All</option>
<option value="Apparel">Apparel</option>
<option value="Books">Books</option>
<option value="DVD">DVD</option>
<option value="Electronics">Electronics</option>
<option value="Music">Music</option>
<option value="Software">Software</option>
<option value="SoftwareVideoGames">SoftwareVideoGames</option>
<option value="Toys">Toys</option>
<option value="VideoGames">VideoGames</option>
<option value="UnboxVideo">Video on Demand</option>
</select>
</div>
<div>
<button id="search-products-submit" type="submit" class="button-primary">Search</button>
</div>
</form>
AJAX请求
function ajaxPostRequest(path, callback, formId) {
return ajaxRequest("POST", path, callback, formId);
}
function ajaxRequest(method, path, callback, data = null) {
let xhr = new XMLHttpRequest();
let url = getFullUrl(path);
addEventListeners(xhr);
xhr.open(method, url, true);
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
let parsedResponse = JSON.parse(xhr.responseText);
callback(parsedResponse);
}
};
setRequestHeaders(xhr, method);
xhr.send(JSON.stringify(data));
}
AJAX请求负载
{
keywords: "aaa",
category: "All",
_token: "qcXA3xVIoltX9tSpeJeWuKVa3alUkq1p5tuIlKJ5"
}
申请表格
class SearchProductsFormRequest extends Request
{
/**
* Determine if the user is authorized to make this request
*
* @return bool
*/
public function authorize()
{
return true;
}
/**
* Get the validation rules that apply to the request
*
* @return array
*/
public function rules(): array
{
return [
'keywords' => 'required',
'category' => 'required'
];
}
}
控制器
/**
* @param SearchProductsFormRequest $request
* @return JsonResponse
*/
public function create(SearchProductsFormRequest $request): JsonResponse
{
if ($request->has('keywords')) {
\Log::info('Got keywords');
} else {
\Log::info('Did not get keywords');
}
if ($request->has('keywords')) {
\Log::info('Got category');
} else {
\Log::info('Did not get category');
}
\Log::info(print_r($request, true));
\Log::info('keywords: ' . $request->input('keywords'));
\Log::info('category: ' . $request->input('category'));
return response()->json([
'name' => 'Abigail',
'state' => 'CA'
]);
}
日志输出
[2018-04-08 19:26:15] local.INFO: Did not get keywords
[2018-04-08 19:26:15] local.INFO: Did not get category
[2018-04-08 19:26:15] local.INFO: keywords:
[2018-04-08 19:26:15] local.INFO: category:
服务器响应的console.log(用于测试的虚拟数据)
因此,控制器正在被调用和响应,但无法读取输入数据
setRequestHeaders()
因为您没有将该值传递给控制器,所以它为您记录了正确的输出 这就是您提出请求的地方,您在这里的代码中显式地将data=null:
function ajaxRequest(method, path, callback, data =
// DATA IS NULL HERE
> null
) {
let xhr = new XMLHttpRequest();
let url = getFullUrl(path);
addEventListeners(xhr);
xhr.open(method, url, true);
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
let parsedResponse = JSON.parse(xhr.responseText);
callback(parsedResponse);
}
};
setRequestHeaders(xhr, method);
xhr.send(JSON.stringify(
// YOU ARE PASSING NULL VALUE HERE
> data
));
}
通过正确的参数,您将很好
data=null
是一个值。OP在ajaxPostRequest(路径、showProducts、searchTerms)
中正确设置了数据,我在您的xhr.send(JSON.stringify(data))中说,我明白了;只发送空数据,发送xhr.send(“keywords=“+JSON.stringify(keywords)+”);他们的toohere xhttp.send(“data=“+JSON.stringify(data)+”和keywords++”和category“+category+”);否,OP未发送null
。他们调用ajaxPostRequest(路径、showProducts、searchTerms)
,其中searchTerms
是一个对象。然后将其字符串化并作为JSON发送。查看setRequestHeaders()
做什么?我添加了setRequestHeaders()代码。因此,由于您的方法是POST
,您将内容类型设置为multipart/form data
,但您正在发布应用程序/json
格式化数据。您告诉服务器期望的内容与实际发送的内容不匹配。您阅读了吗?仅供参考,GET
请求不需要设置内容类型头,因为没有请求有效负载/正文。我更改为application/json,结果相同。setRequestHeader('Content-Type','application/json');
{name: "Abigail", state: "CA"}
function setRequestHeaders(xhr, method) {
xhr.setRequestHeader('Accept', 'application/json');
xhr.setRequestHeader('X-Requested-With', 'XMLHttpRequest');
xhr.setRequestHeader("X-CSRF-TOKEN", getCsrfToken());
if (method === 'GET') {
xhr.setRequestHeader('Content-Type', 'application/json');
} else {
xhr.setRequestHeader('Content-Type', 'multipart/form-data');
}
function ajaxRequest(method, path, callback, data =
// DATA IS NULL HERE
> null
) {
let xhr = new XMLHttpRequest();
let url = getFullUrl(path);
addEventListeners(xhr);
xhr.open(method, url, true);
xhr.onreadystatechange = function() {
if (xhr.readyState === 4 && xhr.status === 200) {
let parsedResponse = JSON.parse(xhr.responseText);
callback(parsedResponse);
}
};
setRequestHeaders(xhr, method);
xhr.send(JSON.stringify(
// YOU ARE PASSING NULL VALUE HERE
> data
));
}