Javascript 可能未经处理的拒绝：-尝试将数据从angularJS传递到spring MVC时

这个错误考验了我很多。有人能帮忙吗？我做错了什么

我有一个脚本，它以JSON格式保存几个参数的值

var mpdApp = angular.module('mpdApp', ['ngAnimate',
    'ngSanitize', 'ui.bootstrap'
]);

mpdApp
    .controller(
        'mpdController',
        [
            '$scope',
            '$rootScope',
            '$http',
            '$window',

            function($scope, $rootScope, $http, $window) {
                $scope.doValidation = function() {

                    var mpdData = {
                        'mpdPolicyNumber': $scope.mpdPolicyNumber,
                        'mpdFirstName': $scope.mpdFirstName,
                        'mpdLastName': $scope.mpdLastName,
                        'mpdAddress': $scope.mpdAddress,
                        'mpdPhoneNumber': $scope.mpdPhoneNumber
                    };

                    console.log(mpdData);

                    $http({
                            'url': '/mpdValidate',
                            'method': 'POST',
                            'headers': {
                                'Content-Type': 'application/json'
                            },
                            'params': mpdData
                        })
                        .then(
                            function(response) {
                                $rootScope.resultMpdData = response.data;
                            });
                };
            }
        ]);

当我试图通过POST将其传递给我的spring mvc控制器时

spring mvc控制器方法：

@PostMapping(path = "/mpdValidate", produces = "application/json")
    @ResponseBody
    public List<MPDValidationOutputVO> mpdValidate(@RequestParam("mpdPolicyNumber") String mpdPolicyNumber,
            @RequestParam("mpdFirstName") String mpdFirstName, @RequestParam("mpdLastName") String mpdLastName,
            @RequestParam("mpdAddress") String mpdAddress, @RequestParam("mpdPhoneNumber") String mpdPhoneNumber)
            throws JsonParseException, JsonMappingException, IOException {

        System.out.println("*************");
        MPDValidationInputVO mpdValidationInput = new MPDValidationInputVO();
        List<MPDValidationOutputVO> mpdValidationOutput = mpdValidationService.mpdValidate(mpdValidationInput);
        return mpdValidationOutput;
    }

{mpdPolicyNumber: "werwer", mpdFirstName: "czxc", mpdLastName: "werwe", mpdAddress: "ghhdf", mpdPhoneNumber: "asaa"}

---

非常感谢您的帮助。

尝试使用此变体

$http({
        url: 'request-url',
        method: "POST",
        data: { 'message' : message }
    })

由于url已经是一个参数，您不应该在单引号中引用它。

products=“application/json”仅在Accept header为“application/json”时处理

方法中的参数太多，只缺少一个参数，这将导致404

若参数不可见，您可能需要添加默认值或required=false。它将帮助您防止404错误

@PostMapping(path = "/mpdValidate", produces = "application/json")
    @ResponseBody
    public List<MPDValidationOutputVO> mpdValidate(@RequestParam("mpdPolicyNumber") String mpdPolicyNumber,
            @RequestParam("mpdFirstName") String mpdFirstName, @RequestParam("mpdLastName") String mpdLastName,
            @RequestParam("mpdAddress") String mpdAddress, @RequestParam("mpdPhoneNumber") String mpdPhoneNumber)
            throws JsonParseException, JsonMappingException, IOException {

        System.out.println("*************");
        MPDValidationInputVO mpdValidationInput = new MPDValidationInputVO();
        List<MPDValidationOutputVO> mpdValidationOutput = mpdValidationService.mpdValidate(mpdValidationInput);
        return mpdValidationOutput;
    }

@PostMapping（path=“/mpdValidate”，products=“application/json”）
@应答器
公共列表mpdValidate（@RequestParam（“mpdPolicyNumber”）字符串mpdPolicyNumber，
@RequestParam（“mpdFirstName”）字符串mpdFirstName，@RequestParam（“mpdLastName”）字符串mpdLastName，
@RequestParam（“mpdAddress”）字符串mpdAddress，@RequestParam（“mpdPhoneNumber”）字符串mpdPhoneNumber）
抛出JsonParseException、JsonMappingException、IOException{
System.out.println（“****************”）；
MPDValidationInputVO mpdValidationInput=新MPDValidationInputVO（）；
List-mpdValidationOutput=mpdValidationService.mpdValidate（mpdvalidationput）；
返回mpdValidationOutput；
}

查看网络选项卡，您收到404错误。您可能发布到错误的URL，请检查您的端口，如果您单独承载应用程序，它们应该具有不同的端口。我的URL是mvc Luiz中指定的URL。它在脚本所在的同一个应用程序中。所有设备都在同一个端口上运行。