Angularjs 无法从angular到my NodeJ获取值

我的想法是将数据从html发送到angular脚本中的一个函数，该函数反过来调用一个节点脚本，该脚本计算一些值，使用自身的函数生成结果，并以json响应的形式将值返回给angular脚本

html

<div ng-app="myApp" ng-controller="myController" ng-init='isFocused=true'>
    <div class="col-lg-5 col-md-8 col-sm-12 col-xs-12">
        <input width="100%" type="text" class="form-control" id="operand1" name="operand1" style="height:50px; font-size:32px" ng-model="operand1" ng-focus=' isFocused="operand1" ' autofocus>
    </div>

    <div class="col-lg-2 col-md-8 col-sm-12 col-xs-12 text-center" style="font-size:32px">
        {{op}}
    </div>

    <div class="col-lg-5 col-md-8 col-sm-12 col-xs-12">
        <input width="100%" type="text" class="form-control" style="height:50px; font-size:32px"  ng-model="operand2" ng-focus=' isFocused="operand2" ' id="operand2" name="operand2" autofocus>
    </div>


</div>


<div class="col-lg-5">

    <div class="row">

        <div class="col-lg-3 col-md-3 col-sm-12 col-xs-12 eqProps text-center"> = </div>

        <div class="col-lg-9 col-md-9 col-sm-12 col-xs-12"style="font-size:32px" ng-model="output">
            {{output}}
        </div>
    </div>

/calculator映射到./routes/calculator.compute

calculator.js

exports.compute = function(req, res){

    var operand1 = req.body.operand1;
    var operand2 = req.body.operand2;
    var operator = req.body.operator;


    var json_responses;

            json_responses = {"answer" : operand1+operand2};
            res.send(json_responses)

};

---

真正的问题是，{output}}没有产生计算器中计算的输出。js

您没有将正确的数据发送到nodejs

exports.compute = function(req, res){

    var operand1 = req.body.operand1;
    var operand2 = req.body.operand2;
    var operator = req.body.operator;


    var json_responses;

            json_responses = {"answer" : operand1+operand2};
            res.send(json_responses)

};

$scope.submit = function() {

    $http({
      method : "POST",
      url : '/calculator',
      data : {
        "operand1" : $scope.operand1,
        "operand2" : $scope.operand2,
        "operator" : $scope.op
      }
    }).success(function(data) {

      $scope.output = data.answer;

    }).error(function(error) {

      $scope.output = 'Invalid Input';

    });

  };

---

您没有将正确的数据发送到nodejs

$scope.submit = function() {

    $http({
      method : "POST",
      url : '/calculator',
      data : {
        "operand1" : $scope.operand1,
        "operand2" : $scope.operand2,
        "operator" : $scope.op
      }
    }).success(function(data) {

      $scope.output = data.answer;

    }).error(function(error) {

      $scope.output = 'Invalid Input';

    });

  };

---

我认为您需要在

myApp.controller（'myController'，function（$scope，$http）

{controller）中插入

$http

，并确保已在html中插入所有必需的js

我粘贴了一个从url获取数据的代码，我可能对你有用

function functionName() {
            $http.get('URL').success(function (response) {
                $scope.variableName = response;
            })
        }

---

我认为您需要在

myApp.controller（'myController'，function（$scope，$http）

{controller）中插入

$http

，并确保已在html中插入所有必需的js

我粘贴了一个从url获取数据的代码，我可能对你有用

function functionName() {
            $http.get('URL').success(function (response) {
                $scope.variableName = response;
            })
        }