问读取js中的文件将会损坏文件。

EN

let str = new TextDecoder("utf8").decode(new Uint8Array(reader.result));

let data = {
    name:file.name,
    size: args.loaded,
    contentsize:str.length,
    type:file.type,
    content:str
};
let res = await $.post({
    url:"/api/files",
    data:JSON.stringify(data),
    processData: false,
    contentType: "application/json",
})

reader.readAsArrayBuffer(file);

$new["actual"] =strlen($new["content"]);
$new["content"] = new MongoDB\BSON\Binary($new["content"] ,MongoDB\BSON\Binary::TYPE_GENERIC);
$result = IO::$db->files->insertOne($new);

{ 
    "name" : "test.pdf", 
    "size" : NumberInt(128454), 
    "contentsize" : NumberInt(122693), 
    "type" : "application/pdf", 
    "actual" : NumberInt(215693)
}