FileStream响应显示

FileStream响应显示

本文介绍了FileStream响应显示-代替拉丁字符的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

请仔细阅读整个问题,
我在C#ASP.NET MVC中有一个应用程序.Ajax对该函数进行调用,该函数使用 FileStream 返回响应 STREAM A 来返回PDF文件.由于该原因,它不能正确呈现文件.该文件只是空页,打开后其中没有文本.ASP.NET MVC中的
FilestreamResult 在返回PDF文件的同时返回响应 STREAM A

kindly read the whole question,
I have a application in C# ASP.NET MVC. Which does a Ajax call on a function which returns a PDF file using FileStream with response STREAM A. And due to that it do not renders the file properly. The file is just empty page with no text in it when opened.
FilestreamResult in ASP.NET MVC returns a response STREAM A while returning a PDF file

流A

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4 0 obj
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/ProcSet [/PDF /Text /ImageB /ImageC /ImageI]
/Font <<
/F1 6 0 R
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/ExtGState <<
/Gs1 7 0 R
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8 0 obj
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/Producer (��pdfmake)
/Creator (��pdfmake)
/CreationDate (D:20140526100505Z)
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/Type /FontDescriptor
/FontName /AAAAAA+Roboto-Regular
/FontFile2 9 0 R
/FontBBox [-479 -271 1170 1058]
/Flags 32
/StemV 0
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/Ascent 1048
/Descent -271
/CapHeight 1048
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它为拉丁字母(例如ÿöÚ等)提供..

It gives for latin letters like ÿ ö Ú and so on.

我希望该文件像流一样

流B

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C#代码

    public FileStreamResult GetFileStream()
    {
        string path = AppDomain.CurrentDomain.BaseDirectory + "uploads/";
        string fileName = "template.pdf";
        return new FileStreamResult(new System.IO.FileStream(path + fileName, System.IO.FileMode.Open), "application/pdf");
    }

JAVASCRIPT代码

function ajaxFileStream() {
    //jQuery.support.cors = true;
    var url = "/Home/GetFileStream";
    $.ajax({
        type: "GET", //POST
        url: url,
        crossDomain: true,
        //data: {},
        success: function (response) {
            console.log(response); // here i get STREAM A
            //do some operation on response
        },
        error: function (error) {
            console.log("error");
        }
    });
}


是否有任何变化?服务器端:同时以utf-8等字符类型流式传输文件.
客户端:一些javascript中的功能代码可将 STREAM A 转换为 STREAM B

Is there any change in
Server Side: while streaming the file in some charactertype like utf-8 or something orther.
Client Side: some function code in javascript to convert from STREAM A to STREAM B

欢迎提出任何建议,谢谢.:)

Any suggestions are welcome, Thanks in advance.:)

推荐答案

好,对于ajax请求,只需将responseType设置为 arraybuffer 即可.由于jQuery不支持该dataType,因此必须使用传统的Javascript Ajax

Well, just need to set responseType to arraybuffer for the ajax request. Since, the jQuery does not supports that dataType, have to use traditional Javascript Ajax

有关更多信息,请参见发送和接收二进制数据

For more Info see Sending and Receiving Binary Data

function ajaxFileStream() {
    var url = "/Home/GetFileStream";
    var oReq = new XMLHttpRequest();
    oReq.open("GET", url, true);
    oReq.responseType = "arraybuffer";

    oReq.onload = function (oEvent) {
        console.log(oReq.response);
        var blob = new Blob([oReq.response], { type: "application/pdf" });
        var win = window.open('', '_blank');
        var URL = window.URL || window.webkitURL;
        var dataUrl = URL.createObjectURL(blob);
        win.location = dataUrl;
    };
    oReq.send();
}

感谢链接的 bUKaneer 很有帮助.

这篇关于FileStream响应显示-代替拉丁字符的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

07-20 23:25