用Javascript将文件内容读入Textarea [英] Read File Contents into Textarea in Javascript

问题描述

我有一个文本区域，一个文件浏览器控件和一个加载按钮.当用户选择一个文件并单击加载"按钮时，我想在文本区域中显示所选文件的内容.我希望此解决方案可以使用Javascript设计.它应该可以在Internet Explorer，FireFox和Chrome上运行.

I have one textarea, one file browser control, and one load button. When the user selects a file and clicks the load button, I want to display the contents of the selected file in the textarea. I would like this solution to be designed in Javascript. It should work on Internet Explorer, FireFox, and Chrome.

推荐答案

我非常确定，如果不先将数据传输到服务器，就无法使用JavaScript进行此操作.但是，您可以使用AJAX将其传输到服务器.请参阅此处: http://stackoverflow.com /questions/527955/how-can-i-up-up-up-file-using-javascript-without-a-postback

另外，您可以使用Flash和Java(注意:不是JavaScript)来完全在客户端上执行上传.

I''m pretty sure this cannot be done with JavaScript without the data traveling to the server first. However, you can have it travel to the server using AJAX. See here: http://stackoverflow.com/questions/527955/how-can-i-upload-a-file-using-javascript-without-a-postback

Alternatively, you can use Flash and Java (note: not JavaScript) to perform the upload entirely on the client.

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