用JavaScript填写输入文件表单

本文介绍了用JavaScript填写输入文件表单的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 29岁程序员，3月因学历无情被辞！ 我需要用JavaScript填充HTML表单来设置文件的上传路径。这个表单所属的网页已经有了一个可视化上传的实现，但是 < form id =mobile_fileform> < input type =filestyle =height：20px; width：0px; opacity：0;id =mobile_fileselect1multiple =size = - 17> < input type =filestyle =height：20px; width：0px; opacity：0;id =mobile_fileselect2multiple =size = - 17> < input type =filestyle =height：20px; width：0px; opacity：0;id =mobile_fileselect3multiple =size = - 17> < / form> 如何在此窗体中设置文件的路径，以及如何使用JavaScript上载文件？ 感谢您的帮助 属性 input：file 为只读。如果你想设置它，你需要做服务器端。 因此，你要做的是不可能即可。考虑一下它的含义：只要知道路径，任何网页都可以上传任何文件。 I need to fill an HTML form with JavaScript to set the path of a file for upload it. The web that this form belongs to, already has a visual upload implemented, but <form id="mobile_fileform"> <input type="file" style="height: 20px; width: 0px; opacity: 0; " id="mobile_fileselect1" multiple="" size="-17"> <input type="file" style="height: 20px; width: 0px; opacity: 0; " id="mobile_fileselect2" multiple="" size="-17"> <input type="file" style="height: 20px; width: 0px; opacity: 0; " id="mobile_fileselect3" multiple="" size="-17"></form>How can I set the path of the file in this form and how can I upload it using JavaScript?Thanks for your help 解决方案 The value property of input:file is read-only for security reasons. If you want to set it, you'll need to do it server-side.As a result, what you're asking to do is not possible. Consider the implications: any webpage would be able to upload any file from someone's computer, so long as they knew the path. 这篇关于用JavaScript填写输入文件表单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！ 上岸，阿里云！