本文操作环境:Windows7系统、PHP7.1版,DELL G3电脑
PHP ajax 远程下载PDF文件保存在本地服务器
在一些时候我们想ajax方式来保存一些PDF文件,尤其是它放在远程服务器上,并且是保存在我们自己的服务器上存储,这个时候我们需要写一段程序来帮助我们完成这个工作,本文介绍了PHP 远程下载PDF文件保存在本地服务器本地化,需要的朋友可以参考下:
html页面代码如下:
<!DOCTYPE html> <html> <head> <script data-require="[email protected]" data-semver="2.1.1" src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <link rel="stylesheet" href="style.css" /> <script src="jquery.binarytransport.js"></script> <script src="script.js"></script> </head> <body> <button>download pdf</button> </body> </html>
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script.js代码如下:
$(function() { $("button").click(function() { $.ajax({ url: "http://lch.bat.com/aa.pdf", type: "GET", dataType: 'binary', success: function(result) { var blob = new Blob([result], {type:"application/pdf"}); var data = new FormData(); data.append('file', blob); $.ajax({ type: 'POST', url: 'http://lch.demo.com/read.php', data: data, processData: false, contentType: false, success: function (arg) { alert('下载成功'); } }) } }); }); });
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jquery.binarytransport.js代码如下:
/** * * jquery.binarytransport.js * * @description. jQuery ajax transport for making binary data type requests. * @version 1.0 * */ // use this transport for "binary" data type $.ajaxTransport("+binary", function(options, originalOptions, jqXHR){ // check for conditions and support for blob / arraybuffer response type if (window.FormData && ((options.dataType && (options.dataType == 'binary')) || (options.data && ((window.ArrayBuffer && options.data instanceof ArrayBuffer) || (window.Blob && options.data instanceof Blob))))) { return { // create new XMLHttpRequest send: function(_, callback){ // setup all variables var xhr = new XMLHttpRequest(), url = options.url, type = options.type, // blob or arraybuffer. Default is blob dataType = options.responseType || "blob", data = options.data || null; xhr.addEventListener('load', function(){ var data = {}; data[options.dataType] = xhr.response; // make callback and send data callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders()); }); xhr.open(type, url, true); xhr.responseType = dataType; xhr.send(data); }, abort: function(){ jqXHR.abort(); } }; } });
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再来看看我的本地读取pdf文件的代码:
<?php /** * Created by PhpStorm. * User: LCA * Date: 2020/9/28 * Time: 9:44 */ //header('Access-Control-Allow-Origin: *'); // 响应类型 header('Access-Control-Allow-Methods:*'); // 响应头设置 header('Access-Control-Allow-Headers:content-type,token,id'); header("Access-Control-Request-Headers: Origin, X-Requested-With, content-Type, Accept, Authorization"); if(isset($_FILES['file'])){ $fname = "cc.pdf"; move_uploaded_file($_FILES['file']['tmp_name'], "/htdocs/demo/" . $fname); echo "写入成功"; }
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最后把jquery库文件引进来,远程下载后,本地即可以打开和原始文件内容一模一样,不会出现乱码了。
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