javascript 如何从javascript中的FormData获取数据？
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How can i get data from FormData in javascript?
提问by Taras Kravets
I need to read data from FormData? I try to read something like someFormatData["valueName"]but it not working.
options["fileId"]or options["file"]does not work. Also I try options.fileIdsame result:
我需要从 FormData 读取数据吗？我尝试阅读类似的内容，someFormatData["valueName"]但它不起作用。
options["fileId"]或options["file"]不起作用。我也尝试options.fileId相同的结果：
function upload(file, fileId, callback) {
var formData = new FormData();
formData.append("file", file);
formData.append("fileID", fileId);
$.ajax({
url: '/url',
type: 'POST',
data: formData,
processData: false,
contentType: false,
success: function(response) {
callback(response);
}
});
}
asyncTest("test upload chunk", function() {
var blob = new Blob(["Hello world!"], { type: "text/plain" }),
options = null,
fileID ="someFileID",
response;
jQuery.ajax = function(param) {
options = param; // THIS is FormData object
// how to read fileId and file from here
};
upload(blob, fileID, function (data) {
response = data;
});
options.success({
someProp: 'responseFromServer'
});
setTimeout(function() {
QUnit.equal(options, "dataTosend", "parameters is OK");
QUnit.equal(response["someProp"], "responseFromServer", "Response ok");
start();
},1000);
});
采纳答案by Kris Boyd
If you take your FormDataobject you can use a few different methods on it… What you are looking for is
如果你拿着你的FormData对象，你可以在它上面使用几种不同的方法......你正在寻找的是
formData.get()
or
或者
formData.getAll()
https://developer.mozilla.org/en-US/docs/Web/API/FormData
https://developer.mozilla.org/en-US/docs/Web/API/FormData
Note that the get()method is not fully supported on all browsers.
请注意，get()并非所有浏览器都完全支持该方法。
