Question

问题

我的PDF下载适用于Chrome，但在IE 11/10/9中无效。

在IE中，它会提示我一个安全警告，但是在我单击是以允许它之后，没有任何反应。

CODE

handleDownload = (reportLoc) => {
        var path = reportLoc.item.ReportPath;
        $.get("/Api/Apps/GetFileFromServer?filePath=" + path, (response) => {
            this.setState({ base64EncodedPDF: response });
        }).then(() => {
            let a = document.createElement("a");
            a.href = "data:application/octet-stream;base64," + this.state.base64EncodedPDF;
            a.download = path.substring(path.lastIndexOf("\\") + 1);
            a.click();
            });

    }

使其适用于Chrome和IE的解决方案？

Answer 1

在查看以下2个参考文献后，我设法解决了这个问题：

https://blog.jayway.com/2017/07/13/open-pdf-downloaded-api-javascript/

Creating a Blob from a base64 string in JavaScript

我的代码现在：

handleDownload = (reportLoc) => {
        var path = reportLoc.item.ReportPath;
        $.get("/Api/Apps/GetFileFromServer?filePath=" + path, (response) => {
            this.setState({ base64EncodedPDF: response });
        }).then(() => {
            if (window.navigator && window.navigator.msSaveOrOpenBlob) {
                var byteCharacters = atob(this.state.base64EncodedPDF);
                var byteNumbers = new Array(byteCharacters.length);
                for (var i = 0; i < byteCharacters.length; i++) {
                    byteNumbers[i] = byteCharacters.charCodeAt(i);
                }
                var byteArray = new Uint8Array(byteNumbers);
                var blob = new Blob([byteArray], { type: "application/octet-stream" });
                window.navigator.msSaveOrOpenBlob(blob, path.substring(path.lastIndexOf("\\") + 1));
                return;
            }
            let a = document.createElement("a");
            a.href = "data:application/octet-stream;base64," + this.state.base64EncodedPDF;
            a.download = path.substring(path.lastIndexOf("\\") + 1);
            a.click();
            });

    }

Document.createElement下载PDF不在IE

1 个答案: