如何在Web应用程序中获取服务器本地驱动器路径? [英] How to get server local drive path in web application?

问题描述

我正在开发一个jsf Web应用程序，其中已在本地计算机上存储了一些图像文件，例如D:\images.服务器仅在此计算机上运行.如何在Web应用程序上访问本地驱动器文件.

I am developing a jsf web application in which i have store some image files on my local computer lets say D:\images. The server running on this computer only. How can i access my local drive files on my web application.

我尝试了

<p:graphicImage value="D:\\Temp\tec0178.jpg"> 或

`<p:graphicImage  value="D:/Temp/tec0178.jpg">` 

这对我不起作用. 如果我将图像放在Web应用程序中

this not work for me. If i place the images in my web application

<p:graphicImage  value="resources/images/Male.png"/>

它的工作.

推荐答案

如果需要将其存储在部署了应用程序的服务器上的物理位置上，则可以使用File使用JAVA中的基本I/0操作班级. 本地驱动器可以直接访问.

If you need to store it on a physical location on your server where your application is deployed, you could just work with basic I/0 operations in JAVA using File class. Local drives are directly accessible.

http://docs.oracle.com/javase/tutorial/essential/io /

您也可以探索Google Guava API.

You could also explore Google Guava API for the same.

使用Google Guava API的简单示例是:

A simple example using Google Guava API is:

File imageFile = new File("D:\\images", imgFileName);
FileOutputStream outputStream = new FileOutputStream(newAttachment);
        ByteStreams.copy(inputStream, outputStream);

此外，要通过URL访问图像，您必须将目录添加为上下文.查看博客文章，以URL形式访问图像文件:

Also, to access images over URL you'll have to add the directory as context. Check out the blog post to access image file as URL:

http://th1rty7. blogspot.in/2009/05/tomcat-is-通常被认为是be.too.html

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