将angularJS变量绑定到nodejs失败

Question

我在将我的 angularJS POST 参数发送到我的 nodejs 服务器时遇到问题...我已经看到了许多与此相关的主题，在这里尝试了所有方法，但没有任何效果（还有更多）：

How to pass parameter in Angularjs $http.post

Angular: how to pass $scope variables into the Node.js server.

How to pass client-side parameters to the server-side in Angular/Node.js/Express

How to pass data from AngularJS frontend to Nodejs backend?

我涉及到这个问题的相关代码， 车把模板：

<div ng-controller='questions'>
  <form method="POST" class="form-inline" class="my-search-menu">
    <button ng-click="search()" class="btn btn-default glyphicon glyphicon-search" type="submit" style="background-color: #85C1E9;"></button>
    <input style="direction: rtl" type="text" name="search_text" ng-model="search_text" class="form-control" placeholder="Search" aria-describedby="sizing-addon3">
  </form>
</div>

AngularJS：

var myapp= angular.module('myapp', []);

myapp.controller("questions", function($scope,$http) {
$scope.search = function () {
    var formdata = {search_text : $scope.search_text};
    $http.post('/search', {params: formdata})
        .success(function (data, status, headers, config) {
            $scope.questions = data;
        })
        .error(function(data, status, header, config){
            $scope.onerror = "Data: " + status;
    });
    console.log(formdata);
    };
});

NodeJS：

app.post('/search', function (req,res,next){
  var search_text = req.query.params.formdata.search_text;
  console.log(req);
  Question.find({$text: {$search: search_text}}).exec(function (err, questions){
    res.json(questions);
  });
});

Answer 1

您遗漏了几点。首先在angar控制器中

$http.post('/search', {params: formdata})

将在节点服务器中发送{params:formdata} 作为请求正文。因此在服务器端您将收到作为request.body 的数据。在这种情况下接收身体的正确方法是..

app.post('/search', function (req,res,next){
      var search_text = req.body.params.search_text;
      //TODO
    });

如果你想将数据作为参数发送，那么在控制器中编写这样的函数......

$http({
        method: 'POST',
        url: '/search/'+paramData,
      }).then(function successCallback(response) {
        //TODO
      }, function errorCallback(error) {
        //TODO
      });

在服务器端...

app.post('/search/:searchText', function (req,res,next){
      var paramData = req.params.searchText;
      //TODO
    });