我从Web服务标注中获取了Blob内容,要求在浏览器中显示该文件。
我所拥有的:
在blob参数上方,我将其作为响应并将其发送回“回调”中的javascript方法。我正在尝试将Blob转换为相应的文件格式并在浏览器上查看(除非最终用户希望,否则我不想下载)。
我在下面尝试过
var callback1 = {
onSuccess: function(e){ //e is the blob content I am receiving
alert('Receiving file from SF:---> ' + e);
var file = new File([e], "uploaded_file.pdf", { type: "application/pdf", lastModified: Date.now() });
//document.body.append(file);
//var blob=new Blob([e], {type:"application/pdf"});
var link=document.createElement('a');
//link.href=window.URL.createObjectURL(e);
link.download=file;
link.click();
}, onFailure: function(error){
alert(error);
}
};
答案 0 :(得分:5)
使用iframe来显示pdf文件,该函数看起来像这样,并带有blob响应和文件名。
function openPDF(resData, fileName) {
var ieEDGE = navigator.userAgent.match(/Edge/g);
var ie = navigator.userAgent.match(/.NET/g); // IE 11+
var oldIE = navigator.userAgent.match(/MSIE/g);
var bytes = new Uint8Array(resData); //use this if data is raw bytes else directly pass resData
var blob = new window.Blob([bytes], { type: 'application/pdf' });
if (ie || oldIE || ieEDGE) {
window.navigator.msSaveBlob(blob, fileName);
}
else {
var fileURL = URL.createObjectURL(blob);
var win = window.open();
win.document.write('<iframe src="' + fileURL + '" frameborder="0" style="border:0; top:0px; left:0px; bottom:0px; right:0px; width:100%; height:100%;" allowfullscreen></iframe>')
}
}