AngularJs $http.post() does not send data

2018-12-31 05:29发布

Could anyone tell me why the following statement does not send the post data to the designated url? The url is called but on the server when I print $_POST - I get an empty array. If I print message in the console before adding it to the data - it shows the correct content.

$http.post('request-url',  { 'message' : message });

I've also tried it with the data as string (with the same outcome):

$http.post('request-url',  "message=" + message);

It seem to be working when I use it in the following format:

$http({
    method: 'POST',
    url: 'request-url',
    data: "message=" + message,
    headers: {'Content-Type': 'application/x-www-form-urlencoded'}
});

but is there a way of doing it with the $http.post() - and do I always have to include the header in order for it to work? I believe that the above content type is specifying format of the sent data, but can I send it as javascript object?

30条回答
宁负流年不负卿
2楼-- · 2018-12-31 06:00

I have had a similar issue, and I wonder if this can be useful as well: https://stackoverflow.com/a/11443066

var xsrf = $.param({fkey: "key"});
$http({
    method: 'POST',
    url: url,
    data: xsrf,
    headers: {'Content-Type': 'application/x-www-form-urlencoded'}
})

Regards,

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其实,你不懂
3楼-- · 2018-12-31 06:00

This code solved the issue for me. It is an application-level solution:

moduleName.config(['$httpProvider',
  function($httpProvider) {
    $httpProvider.defaults.transformRequest.push(function(data) {
        var requestStr;
        if (data) {
            data = JSON.parse(data);
            for (var key in data) {
                if (requestStr) {
                    requestStr += "&" + key + "=" + data[key];
                } else {
                    requestStr = key + "=" + data[key];
                }
            }
        }
        return requestStr;
    });
    $httpProvider.defaults.headers.post["Content-Type"] = "application/x-www-form-urlencoded";
  }
]);
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听够珍惜
4楼-- · 2018-12-31 06:00

I know has accepted answer. But, following might help to future readers, if the answer doesn't suit them for any reason.

Angular doesn't do ajax same as jQuery. While I tried to follow the guide to modify angular $httpprovider , I encountered other problems. E.g. I use codeigniter in which $this->input->is_ajax_request() function always failed (which was written by another programmer and used globally, so cant change) saying this was not real ajax request.

To solve it, I took help of deferred promise. I tested it in Firefox, and ie9 and it worked.

I have following function defined outside any of the angular code. This function makes regular jquery ajax call and returns deferred/promise (I'm still learning) object.

function getjQueryAjax(url, obj){
    return $.ajax({
        type: 'post',
        url: url,
        cache: true,
        data: obj
    });
}

Then I'm calling it angular code using the following code. Please note that we have to update the $scope manually using $scope.$apply() .

    var data = {
        media: "video",
        scope: "movies"
    };
    var rPromise = getjQueryAjax("myController/getMeTypes" , data);
    rPromise.success(function(response){
        console.log(response);
        $scope.$apply(function(){
            $scope.testData = JSON.parse(response);
            console.log($scope.testData);
        });
    }).error(function(){
        console.log("AJAX failed!");
    });

This may not be the perfect answer, but it allowed me to use jquery ajax calls with angular and allowed me to update the $scope.

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一个人的天荒地老
5楼-- · 2018-12-31 06:00

I am using asp.net WCF webservices with angular js and below code worked:

 $http({
        contentType: "application/json; charset=utf-8",//required
        method: "POST",
        url: '../../operation/Service.svc/user_forget',
        dataType: "json",//optional
        data:{ "uid_or_phone": $scope.forgettel, "user_email": $scope.forgetemail },
        async: "isAsync"//optional

       }).success( function (response) {

         $scope.userforgeterror = response.d;                    
       })

Hope it helps.

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怪性笑人.
6楼-- · 2018-12-31 06:03

I had the same problem with AngularJS and Node.js + Express 4 + Router

Router expects the data from post's request in body. This body was always empty if i followed the example from Angular Docs

Notation 1

$http.post('/someUrl', {msg:'hello word!'})

But if i used it in the data

Notation 2

$http({
       withCredentials: false,
       method: 'post',
       url: yourUrl,
       headers: {'Content-Type': 'application/x-www-form-urlencoded'},
       data: postData
 });

Edit 1:

Otherwise node.js router will expect the data in req.body if used notation 1:

req.body.msg

Which also sends the information as JSON payload. This is better in some cases where you have arrays in your json and x-www-form-urlencoded will give some problems.

it worked. Hope it helps.

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萌妹纸的霸气范
7楼-- · 2018-12-31 06:03

Angular

  var payload = $.param({ jobId: 2 });

                this.$http({
                    method: 'POST',
                    url: 'web/api/ResourceAction/processfile',
                    data: payload,
                    headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
                });

WebAPI 2

public class AcceptJobParams
        {
            public int jobId { get; set; }
        }

        public IHttpActionResult ProcessFile([FromBody]AcceptJobParams thing)
        {
            // do something with fileName parameter

            return Ok();
        }
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