使用webservice下载pdf [英] Download pdf using webservice

问题描述

我有标签，它有下载pdf的路径，点击事件调用jquery函数，它本身调用web服务并发送路径作为参数。

在Chrome中我想要强制下载pdf文件。任何人都知道JS中的程序也会起作用。



例如：

I have tag which has path to download pdf, with click event which calls jquery function and which itself calls web service and send path as parameter.
In chrome i want to force download pdf file.if any one knows procedure in JS will work too.

Eg:

function UpdateDownloadCount(DocId) {
           debugger;
           var ID = document.getElementById(DocId);
           var path = ID.getAttribute("name");

           jQuery.ajax({
               type: "POST", //Example:"POST"
               url: "LibraryWebService.asmx/GETPDF", //Example:'WebService.asmx/GetTopicList'
               async: false, //Example:"false
               data: '{"path": "' + path + '"}', //Example:'{"TopicId": "' + 145 + '"}'
               contentType: "application/json",
               dataType: "json .pdf",
               success: SuccessFunction,
               error: ErrorFun
           });
       }

<a id='" + objUserDocumentlist[i].RefDocumentID + "'  önClick='UpdateDownloadCount(this.id)' class='fileDownloadSimpleRichExperience' href='" + filepath + "'  target='_blank'>Text</a>

推荐答案

你不能使用javascript或jQuery下载pdf文件（基本上是一个byte []）。您无法从javascript将字节数组保存到文件中。



请看下面的链接：



http://stackoverflow.com/questions/7406581/download-files-using-javascript-and-webservices [ ^ ]



http://stackoverflow.com/questions/2616491 / download-file-using-ajax-and-webservice [ ^ ]



您需要从ASPX页面或ASHX处理程序调用此Web服务;并将回复写回客户。



您可以阅读此主题开头：



http://stackoverflow.com/questions/2239623/download-file -from-webservice-in-asp-net-site [ ^ ]



希望有所帮助！

You can not download the pdf document (basically a byte[]) using javascript or jQuery for that matter. You can't save a byte array to a file from javascript.

Look at the links below:

http://stackoverflow.com/questions/7406581/download-files-using-javascript-and-webservices[^]

http://stackoverflow.com/questions/2616491/download-file-using-ajax-and-webservice[^]

You need to call this web service from a ASPX page or ASHX handler; and than write the response back to the client.

You can read this thread to start with:

http://stackoverflow.com/questions/2239623/download-file-from-webservice-in-asp-net-site[^]

Hope that helps!

I解决了我的问题：

I got Solution to my question:

function SaveToDisk(fileURL, fileName) {
    // for non-IE
    if (!window.ActiveXObject) {
        var save = document.createElement('a');
        save.href = fileURL;
        save.target = '_blank';
        save.download = fileName || 'unknown';

        var event = document.createEvent('Event');
        event.initEvent('click', true, true);
        save.dispatchEvent(event);
        (window.URL || window.webkitURL).revokeObjectURL(save.href);
    }

    // for IE
    else if ( !! window.ActiveXObject && document.execCommand)     {
        var _window = window.open(fileURL, '_blank');
        _window.document.close();
        _window.document.execCommand('SaveAs', true, fileName || fileURL)
        _window.close();
    }
}

这篇关于使用webservice下载pdf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IT屋！