Question

我需要从上述操作中接收值，该操作使用HTML表单从用户处收集数据，并将其传递给外部JavaScript文件，该文件在处理完这些值后会返回一个字符串。该JavaScript文件已与Babel一起作为ES6的捆绑包进行了翻译，该捆绑包使用Promises处理值并返回字符串结果。现在，我使用.then来使AngularJS等待响应，然后再进行$http调用。结果返回，但不用作传递给我的.then运算符的值。拜托，我该如何解决？以下是我的代码段：

var numBits = $scope.getCertKeySize();
try{
    CreateRequest($scope.fields['env'], numBits).then(function(result){
        $scope.fields['key'] = result; //result comes back undefined

        var jsonMsg = $scope.fields;

        $http({
           method: 'POST',
            url: '/requestedStuff',
            data: jsonMsg,
            headers: {'Content-type': 'application/json'}
        }).then(function successCallback(response){
            $scope.disableSubmit = true;
        });
    });
}catch(err){
    return false;
}

function CreateRequest($scope.fields['env'], numBits){

    var fromCSForm = document.fromLiveApp;
    var userId = fromCSForm.txtUserId.value;
    var department = fromCSForm.txtDepartment.value;

    return createFromExternalJSFile(userId, department);//returns a promise with the result
}

这是来自createFromExternalJSFile的示例代码：

function createFromExternalJSFile(userId, department) {
  return Promise.resolve().then(function () {
    return createPKCS10Internal(userId, department);
  }).then(function () {
    var resultString = "-----BEGIN CERTIFICATE REQUEST-----\r\n";
    resultString = "".concat(resultString).concat(formatPEM((0, _pvutils.toBase64)((0, _pvutils.arrayBufferToString)(pkcs10Buffer))));
    resultString = "".concat(resultString, "\r\n-----END CERTIFICATE REQUEST-----\r\n");
  });
}

请原谅我的无知，因为我对AngularJS和JavaScript的了解不尽如人意。谢谢！

Answer 1

您应该从上一个.then函数返回值，例如：

function createFromExternalJSFile(userId, department) {
  return Promise.resolve().then(function () {
    return createPKCS10Internal(userId, department);
  }).then(function () {
    var resultString = "-----BEGIN CERTIFICATE REQUEST-----\r\n";
    resultString = "".concat(resultString).concat(formatPEM((0, _pvutils.toBase64)((0, _pvutils.arrayBufferToString)(pkcs10Buffer))));
    resultString = "".concat(resultString, "\r\n-----END CERTIFICATE REQUEST-----\r\n");
    return resultString;
  });
}

返回结果在AnuglarJS中未定义

1 个答案: