我正在使用azure blob存储，我已经用PHP语言完成了这一点，现在我想使用jquery将文件上传到azure blob存储上，所以我使用了一个插件，当我尝试上传文件时，它是在控制台中给我错误
Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at (Reason: CORS header ‘Access-Control-Allow-Origin’ missing).
我了解了 CORS 配置，并在 Azure Blob 存储中启用了该配置，这是我的屏幕截图
这是我的 jquery 代码
$(function () {
var ju = {
sasUrl: $('#txtSAS'),
list: $('#tbFileList tbody'),
btnUpload: $('#btnUpload'),
btnClear: $('#btnClear'),
btnAddFile: $('#btnAddFile'),
sasSearchName: 'sas',
btnLink: $('#btnLink'),
linkPopover: $('#linkPopover'),
init: function () {
this.root = location.href;
if (this.root.indexOf('?') > 0) {
this.root = this.root.substr(0, this.root.indexOf('?'));
this.root = this.root.replace(/#/g, '');
}
this.btnClear.hide();
var sas = this.queryString(this.sasSearchName);
if (sas) {
this.sasUrl.val(sas);
}
this.list.blobuploader(
{
url: ju.sasUrl.val(),
beforeSend: function (blob) {
},
progress: function (blob) {
ju.progress(blob.element.closest('tr'), blob.loaded, blob.size);
},
success: function (blob, data, status) {
var st = blob.speed(true);
var msg = 'total time: ' + ((st.end - st.start) / 1000).toFixed(2) + 'S<br/>'
+ 'max speed: ' + st.max + '<br/>'
+ 'min speed: ' + st.min + '<br/>'
+ 'average speed: ' + st.average;
ju.status(blob.element, msg);
var download = '<a target="_blank" role="button" class="btn btn-link" href="'
+ blob.blobUrl
+ '" >' + blob.name + '</a>';
ju.log(blob.element.closest('tr').find('td:first'), download);
},
error: function (blob, block, xhr, desc, err) {
var msg = $('<span></span>');
msg.append('upload ' + blob.name + ' error.');
var btn = $('<button type="button" id="btnUpload" class="btn btn-sm btn-primary pull-right" role="button">Retry</button>');
btn.click(function () {
ju.retry($(this).closest('tr'));
});
msg.append(btn)
ju.status(blob.element, msg, 'danger');
}
});
this.btnClear.click(function () {
ju.clear();
});
this.btnAddFile.find('input').on('change', function () {
ju.add();
});
this.btnUpload.click(function () {
ju.upload();
});
this.btnLink.popover({
html: true,
content: this.linkPopover,
container: 'body'
});
this.btnLink.on('shown.bs.popover', function () {
var panel = $('#linkPopover');
panel.find('#txtShareUrl').val(ju.getLongUrl());
panel.find('#ckShortUrl').click(function () {
if ($(this).is(':checked')) {
ju.generateShortUrl();
} else {
panel.find('#txtShareUrl').val(ju.getLongUrl());
}
})
panel.find('.close').click(function () {
ju.btnLink.popover('toggle');
});
panel.find('#ckShortUrl').attr('checked', false);
panel.find('.loading').hide();
});
this.sasUrl.on('change', function () {
ju.linkPopover.find('#ckShortUrl').attr('ckecked', false);
ju.linkPopover.find('.loading').hide();
});
var code = $('.prettyprint');
code.text(code.text().replace('site-domain', location.origin));
},
progress: function (tr, loaded, total) {
var percent = (loaded / total * 100).toFixed(2);
var span = tr.find('td:last .percent');
if (span.length == 0) {
span = $('<span class="percent"/>').appendTo(tr.find('td:last').empty());
}
span.text(percent + '%');
},
log: function (td, message, type) {
var div = td.empty();
if (type) {
div = $('<div class="alert alert-' + type + '"/>').appendTo(td);
}
if (message instanceof jQuery) {
div.append(message);
} else {
div.html(message);
}
},
information: function (element, info, type) {
var td = element.closest('tr').find('td:eq(1)');
if (info) {
ju.log(td, info, type);
} else {
return td.html();
}
},
status: function (element, message, type) {
var td = element.closest('tr').find('td:last');
if (message) {
ju.log(td, message, type);
} else {
return td.html();
}
},
add: function () {
var tr = $('<tr/>'), td = $('<td/>');
var file = this.btnAddFile.find('input');
this.btnAddFile.append(file.clone(true));
var f = file.get(0).files[0];
td.append(file)
.append(f.name)
.appendTo(tr);
td = $('<td/>')
.append(f.type, f.type ? '<br/>' : '', (f.size / 1000).toFixed(2) + 'KB')
.appendTo(tr);
$('<td><span class="percent"></span></td>').appendTo(tr);
tr.appendTo(this.list);
this.btnClear.show();
},
setProperties: function () {
if (!this.sasUrl.val()) {
alert('Please typedin the Container SAS');
return;
}
var blockSize = parseInt($('#txtBlockSize').val());
var maxThread = parseInt($('#txtMaxThread').val());
if (isNaN(blockSize) || isNaN(maxThread)) {
alert("Block Size and Max Thread can only be number.");
return;
}
if (blockSize > 4096) {
alert('The block size should be less than 4096kb');
return;
}
if (blockSize < 1) {
alert('The block size should be greater than 1kb');
return;
}
if (maxThread < 0) {
maxThread = 0;
}
this.list.blobuploader('option', { maxThread: maxThread, blockSizeKB: blockSize, url: this.sasUrl.val() });
return true;
},
upload: function () {
if (this.setProperties()) {
this.list.blobuploader('upload');
}
},
retry: function (tr) {
if (this.setProperties()) {
if (tr) {
var element = tr.find('input[type="file"]');
var blob = this.list.blobuploader('blob', element);
this.list.blobuploader('retry', blob);
} else {
this.list.blobuploader('retry');
}
}
},
clear: function () {
this.list.empty();
this.btnClear.hide();
},
queryString: function (name, value) {
if (!value) {
name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
results = regex.exec(location.search);
return results == null ? "" : atob(decodeURIComponent(results[1].replace(/\+/g, " ")));
} else {
return name + '=' + encodeURIComponent(btoa(value));
}
},
getLongUrl: function () {
return this.root + '?' + this.queryString('sas', this.sasUrl.val());
},
generateShortUrl: function () {
var request = gapi.client.urlshortener.url.insert({
'resource': {
'longUrl': this.getLongUrl()
}
});
request.execute(function (response) {
if (response.id != null) {
ju.linkPopover.find('.loading').hide();
ju.linkPopover.find('#txtShareUrl').val(response.id);
}
else {
ju.linkPopover.find('.loading').text('error.');
}
});
}
}
ju.init();
prettyPrint();
})
function gapiload() {
gapi.client.setApiKey('AIzaSyDzeVB4WDi6azVvIu6uc8hIhWxf99dB6c8');
gapi.client.load('urlshortener', 'v1', function () { });
}
在输入中，我们需要添加“在此处输入您的容器 SAS”，我将在那里添加
https://*****.blob.core.windows.net/?sv=2017-04-17&ss=bfqt&srt=sco&sp=rwdlacup&se=2017-09-10T01:51:2 0Z&st=2017-09-09T17:51:20Z&spr=https&sig=****** 这个 SAS url，它将获取这个 SAS url，然后我们需要选择文件并上传。
谁能告诉我确切的问题是什么？
谢谢
最佳答案
我还下载并测试了该库，它在我的 blob 存储服务上的以下设置中运行良好。 MaxAgeInSeconds 设置将缓存预检 OPTIONS 请求。建议您将其重置为0并再次运行代码(请使用不同的浏览器进行测试)。
此外，Azure存储面板下还有多CORS设置。请确保您为 Azure Blob 存储设置了正确的设置。
关于azure - 在 azure blob 存储上上传文件时出现问题，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46130425/