Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
224 views
in Technique[技术] by (71.8m points)

html - How can I display an image from the local machine on a webpage

Here's the scenario: I have two machines on a LAN network. One of them is acting as a web server. When the second, client machine browser (Firefox) makes a request from the server, it sends the following html

<!DOCTYPE HTML>
<html>
<body>
<img src="C:UsersGeneralDesktopmap1.jpg" align="middle">
</body>
</html>

The image however is not displayed. I have tried the following variations to the img tag:

<img src="C:/Users/General/Desktop/map1.jpg" align="middle">
<img src="file:///C:/Users/General/Desktop/map1.jpg" align="middle">
<img src="http://localhost//file:/C:/Users/General/Desktop/map1.jpg" align="middle">

Funny thing is if I view the page source and save the html content to a local file and open it in the browser it works. The exact same html code does not work when fetched from the server, but works when opened on the local machine.

Please note that I'm trying to load the image off the client machine because it is impossible to store an image on the server machine in my scenario. (The server is actually an Arduino Mega without an SD card)

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

In most recent browsers, links to local files ( file:/// ) do not open, for security purposes. In your case, the browser does not display an image that resides on a file on your hard disk. This reason also explains why it works when you save your page locally.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...