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java angularjs spring文件上传

file-upload amazon-web-services spring angularjs html

szark · 技术社区 · 6 年前

我试图上传一个文件到服务器使用angularjs和Spring(到amazonaws)。

File Upload using AngularJS

How to upload a file with AngularJS?

还查了youtube上的教程,找到了Black Cloud,Brent Aureli的频道,我就是搞不懂。

你必须在我的webapp中进行身份验证才能发送post请求,但我在登录时也会遇到错误。

非常感谢您的帮助。

<form>
<input type="file" file-model="file">
<button ng-click="submit()" type="submit">Click</button>
</form>

文件模型的指令:

.directive('fileModel', ['$parse', function($parse){
    return {
        restrict: 'A',
        link: function(scope, element,attrs) {
            var model = $parse(attrs.fileModel);
            var modelSetter = model.assign;

            element.bind('change', function() {
                scope.$apply(function() {
                    modelSetter(scope, element[0].files[0]);
                })
            })
        }
    }
}])

控制器:

.controller('UploadController', ['$scope', 'multipartForm', function($scope, multipartForm) {
    $scope.file = {}; 
    $scope.submit = function() {
        var uploadUrl = '/uploadtest';
        multipartForm.post(uploadUrl, $scope.file);
    }       
}])

multipartForm服务:

.service('multipartForm', ['$http', function($http){
    this.post = function(uploadUrl, data) {
        var fd = new FormData();
        for(var key in data) {
            fd.append(key, data[key]);
        $http.post(uploadUrl, fd, {
            transformRequest: angular.identity,
            headers: {'Content-Type': undefined}
        })
    }
}])

弹簧端点:

@RestController
@RequestMapping("/storage/")
public class BucketController {

    private AmazonClient amazonClient;

    @Autowired
    public BucketController(AmazonClient amazonClient) {
        this.amazonClient = amazonClient;
    }

    @RequestMapping(value = "/uploadtest", method = RequestMethod.POST)
    public String uploadFile(@RequestParam(value = "file") MultipartFile file) {
        System.out.println("Uploading file!!!!!!!!!!!!");
        return this.amazonClient.uploadFile(file);
    }  
}

浏览器中出现错误:

角度。js:15018可能未处理的拒绝: “状态”:400, “config”:{“method”:“POST”,“transformResponse”:[null], “jsonpCallbackParam”:“回调”, “headers”:{“Accept”:“应用程序/json, / ", “X-request-With”:“XMLHttpRequest”, “基本c3p5bW9uc3R1c3pla0BnbWFpbC5jb206dGVzdA=”, “X-XSRF-TOKEN”:“395d1e27-a6ee-4948-b673-39d31902e1ae”}, “url”:“/uploadtest”,“data”:{}}, “statusText”:“”,“xhrStatus”:“完成”}

1 回复 | 直到 6 年前

Ravikumar R 6 年前

由于缺少未显示的查询参数“file”,出现异常。在spring端点中,您不应该在request param中收到文件请求!

    @RequestMapping(value="/uploadtest", consumes = "multipart/form-data",method = RequestMethod.POST, produces = "application/json")
        public String uploadFile(MultipartHttpServletRequest  request) throws Exception{

      try {
            MultipartFile multipartFile1 = request.getFile("file");
            if (multipartFile1 != null) {
                 String file1 = multipartFile1.getOriginalFilename();
                 InputStream inputStream = multipartFile1.getInputStream();
                // do whatever 
            }
         } catch (IOException e) {
            logger.error(e.getMessage());
        }
    return null;
}

在为multipartForm服务时,将头内容类型更改为:multipart/form data

希望这会有帮助!!