Я создаю надстройку office-js для Excel.Мне нужно загрузить текущую рабочую книгу на внутренний сервер.Я реализовал пример из документации Micrsoft, который, кажется, работает нормально при первом вызове, но при последующих вызовах вызывает сбой Excel.Я использую Excel 365 версии 1812 (сборка 11126.20132)
Вот ссылка на пример в документации MS: https://docs.microsoft.com/en-us/javascript/api/office/office.document
На этой странице есть много примеров, чтобы найтиЯ работаю по поиску «Следующий пример получает документ в Office Open XML». Я включил приведенный ниже пример для простоты использования.
Код просто получает текущий файл и выводит символы вжурнал консоли.Он отлично работает в первый раз, но завершает работу Excel во второй раз - после того, как он показал длину FileContent.
export function getDocumentAsCompressed() {
Office.context.document.getFileAsync(Office.FileType.Compressed, { sliceSize: 65536 /*64 KB*/ },
function (result) {
if (result.status == "succeeded") {
// If the getFileAsync call succeeded, then
// result.value will return a valid File Object.
var myFile = result.value;
var sliceCount = myFile.sliceCount;
var slicesReceived = 0, gotAllSlices = true, docdataSlices = [];
console.log("File size:" + myFile.size + " #Slices: " + sliceCount);
// Get the file slices.
getSliceAsync(myFile, 0, sliceCount, gotAllSlices, docdataSlices, slicesReceived);
}else {
console.log("Error:", result.error.message);
}
});
}
function getSliceAsync(file, nextSlice, sliceCount, gotAllSlices, docdataSlices, slicesReceived) {
file.getSliceAsync(nextSlice, function (sliceResult) {
if (sliceResult.status == "succeeded") {
if (!gotAllSlices) { // Failed to get all slices, no need to continue.
return;
}
// Got one slice, store it in a temporary array.
// (Or you can do something else, such as
// send it to a third-party server.)
// console.log("file part",sliceResult.value.data)
docdataSlices[sliceResult.value.index] = sliceResult.value.data;
if (++slicesReceived == sliceCount) {
// All slices have been received.
file.closeAsync();
onGotAllSlices(docdataSlices);
}
else {
getSliceAsync(file, ++nextSlice, sliceCount, gotAllSlices, docdataSlices, slicesReceived);
}
}
else {
gotAllSlices = false;
file.closeAsync();
console.log("getSliceAsync Error:", sliceResult.error.message);
}
});
}
function onGotAllSlices(docdataSlices) {
var docdata = [];
for (var i = 0; i < docdataSlices.length; i++) {
docdata = docdata.concat(docdataSlices[i]);
}
var fileContent = new String();
for (var j = 0; j < docdata.length; j++) {
fileContent += String.fromCharCode(docdata[j]);
}
console.log("fileContent.length",fileContent.length)
// Now all the file content is stored in 'fileContent' variable,
// you can do something with it, such as print, fax...
}
Вот результат
File size:21489 #Slices: 1
fileContent.length 21489
Оригинальный пример из документации Microsoft (https://docs.microsoft.com/en-us/javascript/api/office/office.document)
// The following example gets the document in Office Open XML ("compressed") format in 65536 bytes (64 KB) slices.
// Note: The implementation of app.showNotification in this example is from the Visual Studio template for Office Add-ins.
function getDocumentAsCompressed() {
Office.context.document.getFileAsync(Office.FileType.Compressed, { sliceSize: 65536 /*64 KB*/ },
function (result) {
if (result.status == "succeeded") {
// If the getFileAsync call succeeded, then
// result.value will return a valid File Object.
var myFile = result.value;
var sliceCount = myFile.sliceCount;
var slicesReceived = 0, gotAllSlices = true, docdataSlices = [];
app.showNotification("File size:" + myFile.size + " #Slices: " + sliceCount);
// Get the file slices.
getSliceAsync(myFile, 0, sliceCount, gotAllSlices, docdataSlices, slicesReceived);
}
else {
app.showNotification("Error:", result.error.message);
}
});
}
function getSliceAsync(file, nextSlice, sliceCount, gotAllSlices, docdataSlices, slicesReceived) {
file.getSliceAsync(nextSlice, function (sliceResult) {
if (sliceResult.status == "succeeded") {
if (!gotAllSlices) { // Failed to get all slices, no need to continue.
return;
}
// Got one slice, store it in a temporary array.
// (Or you can do something else, such as
// send it to a third-party server.)
docdataSlices[sliceResult.value.index] = sliceResult.value.data;
if (++slicesReceived == sliceCount) {
// All slices have been received.
file.closeAsync();
onGotAllSlices(docdataSlices);
}
else {
getSliceAsync(file, ++nextSlice, sliceCount, gotAllSlices, docdataSlices, slicesReceived);
}
}
else {
gotAllSlices = false;
file.closeAsync();
app.showNotification("getSliceAsync Error:", sliceResult.error.message);
}
});
}
function onGotAllSlices(docdataSlices) {
var docdata = [];
for (var i = 0; i < docdataSlices.length; i++) {
docdata = docdata.concat(docdataSlices[i]);
}
var fileContent = new String();
for (var j = 0; j < docdata.length; j++) {
fileContent += String.fromCharCode(docdata[j]);
}
// Now all the file content is stored in 'fileContent' variable,
// you can do something with it, such as print, fax...
}
// The following example gets the document in PDF format.
Office.context.document.getFileAsync(Office.FileType.Pdf,
function(result) {
if (result.status == "succeeded") {
var myFile = result.value;
var sliceCount = myFile.sliceCount;
app.showNotification("File size:" + myFile.size + " #Slices: " + sliceCount);
// Now, you can call getSliceAsync to download the files,
// as described in the previous code segment (compressed format).
myFile.closeAsync();
}
else {
app.showNotification("Error:", result.error.message);
}
}
);