javascript:嵌套 for 循环内的 http 调用

Question

在我的 Angular 应用程序中，我有两个数组，如下所示:

$scope.data = ["val 10,val 11,val 12", "val 20,val 21,val 22", "val 30,val 31,val 32"];

$scope.fields = [ "key1", "key2", "key3" ];

现在我需要将数组($scope.data)的每个数据发送到服务器，格式如下:

{
  key1: 'val 10',
  key2: 'val 11',
  key2: 'val 12',
}
{
  key1: 'val 20',
  key2: 'val 21',
  key2: 'val 22',
}
{
  key1: 'val 30',
  key2: 'val 31',
  key2: 'val 32',
}  

但问题是:当我向服务器发送数据时，我只得到$scope.data的最后一个值。我的代码如下:

// $scope.data = ["val 10,val 11,val 12", "val 20,val 21,val 22", "val 30,val 31,val 32"];
_.each($scope.data, function(result, index) {

  var dataArray = result.split(",");  // ["val 10" ,"val 11", "val 12"]
                                      // ["val 20" ,"val 21", "val 22"]
                                      // ["val 30" ,"val 31", "val 32"]

  _.each(dataArray, function(info, position) {

    if( info !== null || info !== '' || info.length > 0 )  {
      $scope.data[ $scope.fields[position] ] = info;   // { key1: 'val 10', key2: 'val 11', key2: 'val 12' }                                                        
                                                      //  { key1: 'val 20', key2: 'val 21', key2: 'val 22' }
                                                      //  { key1: 'val 30', key2: 'val 31', key2: 'val 32' }
    }
  });

  $http
    .post(url + '/import-data', {
      "data": $scope.data
    })
    .then(function (res) {
      console.log(res);  // in server I always get the following object
                         //  { key1: 'val 30', key2: 'val 31', key2: 'val 32' }
                         //  { key1: 'val 30', key2: 'val 31', key2: 'val 32' }
                         //  { key1: 'val 30', key2: 'val 31', key2: 'val 32' }
    }, function (error) {
      console.log("error : ", error);
    })

});

如何解决这个问题？提前致谢...

Answer 1

试试这个:

_.each($scope.data, function(result, index) {

    var dataArray = result.split(","); 

    $http
       .post(url + '/import-data', {
            "data": _.object( $scope.fields, dataArray)
       })
      .then(function (res) {
          console.log(res); 
       }, function (error) {
          console.log("error : ", error);
       })

  });