SAPUI5 / Javascript如何将二进制数据转换为可读格式并下载为PDF格式

我从OData Service获取二进制数据。有人请帮助我如何将二进制数据转换为可读格式。 我试着像atob这样的选项很少但是它没有成功。 以下是我的代码..

var 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" var bin=atob(data); 

能否帮助我如何使其成为可读格式并以PDF格式下载？

Answer 1

好吧，有几种方法可以解决它。 最重要的信息是您拥有的字符串是PDF文件的Base64编码版本。

您可以创建一个Blob并使用一些小“技巧”​​下载它（对于IE，您有一个IE特定的API，对于其他浏览器，您可以使用数据URL）。 请检查以下SO问题： 使用javascript |下载base64数据 IE11 。 它的要点如下：

  var a = window.document.createElement("a"); a.href = window.URL.createObjectURL(blob, { type: "application/pdf" }); a.download = "filename.pdf"; document.body.appendChild(a); a.click(); document.body.removeChild(a); 

或者您可以使用内置的UI5实用程序函数sap.ui.core.util.File.save并将解码的二进制数据传递给它：

 sap.ui.core.util.File.save(bin, "filename", "pdf", "application/pdf"); 

当然，另一种可能性是使用像download.js这样的第三方库：

 download(bin, "filename.pdf", "application/pdf"); 

在我看来，你应该使用UI5版本，因为：

• 第一个版本使您编写一些相当低级别的，与浏览器相关的代码。
• 如果你看一下UI5函数的源代码 ，它实际上大部分都是一样的。
• 最后一个版本添加了一个可以避免的外部依赖。

唯一需要注意的是UI5function的兼容性; 专门从事此事的第三方库可能具有更好的兼容性矩阵：

macOS Safari <10.1 / iOS Safari打开一个新窗口或选项卡。 在macOS中，用户必须手动保存文件（使用组合键“CMD + S”，选择页面源格式，并指定文件名）。 在iOS中，内容可以在另一个应用程序（Mail，Notes，…）中打开，也可以复制到剪贴板。 如果弹出窗口阻止程序阻止此操作，则将引发错误，该错误可用于通知用户需要禁用弹出窗口阻止程序。

Android浏览器不支持

Windows Phone 10 Edge不支持