尝试上传文件时出现 404 not found 错误节点 js

Question

这是我的代码：

angular.module('fileModelDirective',[])

.directive('fileModel',['$parse',function ($parse) {
return {
    restrict: 'A',
    link: function (scope, element, attrs) {
        var parsedFile = $parse(attrs.fileModel);
        var parsedFileSetter = parsedFile.assign;
        element.bind('change', function () {
            scope.$apply(function () {
                parsedFileSetter(scope, element[0].files[0]);
            });
        });
    }
};
}]);

在服务器中我有：

 app.post('/upload', function (req, res) {
    upload(req, res, function (err) {
        if (err) {
            if (err.code === 'LIMIT_FILE_SIZE') {
                res.json({success: false, message: 'The image file Size is too large, Max size allowed is 10MB'});
            } else if (err.code === 'filetype') {
                res.json({success: false, message: 'The image file type is invalid, Must be .png/.jpeg/.jpg'});
            } else {
                res.json({success: false, message: 'File was not uploaded'});
            }
        }
        else{
            if(!req.file){
                res.json({success: false, message: 'No file selected'});
            }else{
                res.json({success: true, message: 'The file was uploaded'});
            }
        }
    });
});

但是我一直收到这个错误：

:63342/上传资源加载失败：服务器响应状态为 404（未找到）

有什么问题？

Answer 1

404 错误是来自客户端的错误。这意味着服务器没有找到您要的内容。

404 Not Found

The requested resource could not be found but may be available in the future. Subsequent requests by the client are permissible.

通常，当您 API 拼写错误或尝试请求不存在的内容时，就会发生这种情况。检查您是否正确询问了正确的服务器，以及它是否接受 /upload 上的 HTTP POST ；以及它是否正确接受文件。

尝试上传文件时出现 404 not found 错误节点 js

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