I develop a web application using JDeveloper. Then, my scenario is I want to get a file from client directory (e.g. C://Image.jpg). What I want to achieve is the client's directory defined programmatically. So, I used InputStream, but it will search a file in server directory. if I used UploadedFile, I don't know how to define it. Note that I don't want to use InputFile.
Does anyone have a solution for me?
Search for HTTP File Upload. You need an <input type='file'> control on your webpage, and form encoding set as enctype='multipart/form-data'.
Generally, you can't control the default directory where the browser is going to open a file chooser -- it normally starts from the "user home" directory, but other dirs can be navigated to.
Related
I'm developing local-only JSP application using Apache Tomcat server. I would like to put a promotion videos on my intro page, but I don't want to move them to webapp folder or anywhere else.
The promotion videos are located:
E:\data\videos\2018...
But writing a JSP/HTML like this wont launch the video, but however it works off-server (launching html from desktop for example, so the path may not be issue?)
<video src="file:///E:/data/videos/2018/promotion1.mp4" controls></video>
Local file links from remote resources are disabled by almost all browsers by default. There are certain possibilities to overcome that, e.g.:
http://kb.mozillazine.org/Links_to_local_pages_do_not_work
https://discourse.mozilla.org/t/opening-links-to-local-files-file/16449/2
To access your static media files from remote page you need to configure your Tomcat server as described here: http://teknosrc.com/access-local-files-static-content-images-videos-media-files-outside-web-application-system-apache-tomcat-server/
solution:
a.) make sure your server is on the same system where the media files are.
b.) If so, you have to create a folder (ex. media) in your application folder inside /src/main/webapp/ and have to put all media files inside a media folder. After that, you can surely access the media files through a server.
Can any one help me on the following issue. I have index.html file in that
<td><input type="file" id="testsuitepath1" value="testpath"></td>
By using the above line I am able to browse files from my local system path instead of server path. So ,in Servlets is there any way to access the files by clicking on browse button in the server location.
No, not by default. A web server, at least in part, does what you want - it serves files from the server side. But by default it doesn't let you just browse any file nor see all of the files on the server side. You could write a servlet to do this but you need to be careful to not all the client to access sensitive files.
The .html works at client side. That's why you are able to browse files from local system.
A servlet is delpoyed at server side , So a servlet can access files/resources stored in the web-app that is deployed on that server. This is called accessing relative resources.
Moreover, If you want to access the files from the server via browse button then, you should have the access to the network location where the web-app is deployed.
Later, in the filename(browse window) you can search the path of the server.
e.g: \\web-app\file1.jpg
Personally. I think you have a bad software design issue.
does anyone know how to create HTTP server in Java, but set default folder for web and than load files from it? I want to use com.sun.net.httpserver class.
For example, I have folder named abc next to my java file. The java file runs HTTP server under port 8080. And if I open address http://123.123.123.123:8080/ I want to see list of files from folder abc. In folder abc are some files, eg. image.jpg. So I want to open in my browser address to image file, like http://123.123.123.123:8080/image.jpg. This way I can open all other files from folder abc (also subfolders, files in subfolders etc.).
Is it possible to create this HTTP server?
Would it be somehow possible to run PHP files in the folder?
Thank you very much for your answers.
Why not using embedded Jetty? I am pretty sure that with it you can accomplish what you are looking for.
If you want to execute PHP from within Jetty, refer to http://docs.codehaus.org/display/JETTY/Jetty+and+PHP
Once you have created your server object, you need to register some handlers for the path you want the user to use to fetch documents.
HttpServer server = HttpServer.create(new InetSocketAddress("localhost",8080));
HttpHandler myDocsHandler = new MyDocsHandler();
server.createContext("/abc", myDocsHandler);
There are no built in default handlers, so you will need to write the MyDocsHandler class that implements the HttpHandler interface to handle any requests coming into your server at http://localhost:8080/abc.
The handler requires a single handle method that takes an HttpExchange argument that gives access to the request data and the response stream. It is your responsibility at this point to do what needs doing. So if you wanted the actual files to be located on your hard driver at /usr/local/abc your handler would need to open the requested file using standard file io and stream it back to the user.
suppose in my web app user click on download button so a file downloaded into his system. So can i get that client's download location like where the recent downloaded file present in my client system
You cannot get this information.
It is sandboxed, the server will not be informed by the client about the location.
This is not possible since you don't have access to user's file system through the browser (JavaScript).
Maybe using a module or whatever directly in the browser.
You don't. All you get is the file name...
What woule it help you anyway as your server does not have the same structure.
i have a web application which stores users file in directory which is under webroot directory..
Suppose web application is under 'fileupload' and all files are getting stored in 'xyz' folder under 'fileupload' so now if user points to url say like
www.xyzpqr.com/fileupload/xyz/abc.doc, he gets that file.
How do i restirct this from happening.. i have thought of putting xyz folder in WeB-inf folder but as my application is very big i have to made changes at too many places.. so is there any way so that without moving the folder to web-inf (restricted folders) i can achieve wat i want..
In many cases, this is something that you can set in the configuration for the webserver your files are stored on. You can require passwords for directory access, or restrict things even further than that. It will vary by implementation exactly what configuration file you need to look at, but some common ones are http.conf and .htaccess
If you're unsure, it's probably worth it to contact your hosting company and/or network admin.
Hi if you are using Apache web server you can protect a directory by password. But you need to be able to edit/create .htaccess file.
Here's the solution for WAMP server:
http://php-mysql.develop.sitefrost.com/PHP/security.php
It is very similar for other platforms. When someone wants to access a protected directory he must first submit username and password.
I would suggest creating a filter which examines every URL to see if the user has access to that particular file and denies the request if not.
This gives you full control.