Okay so i am working on a special little project and i require some help. I have started working on a Java webserver written using only java libraries. The aim is to be the simplest webserver written in java around. I have been very successful lately, but recently i have run into a problem with uploading files to the server. The server recieves the headers but i can not see the text from inside the file. Any help would be great! Thank you
you can see the website hosted by the webserver here: blends.hopto.org/beta
One of the problems could be due to missing enctype="multipart/form-data" in the form that is submitted. Also in the servlet side this article was helpful while I did a file upload to the server: http://docs.oracle.com/javaee/6/tutorial/doc/glrbb.html
It turns out the file was just written after a newline feed
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I am new in java web application, (Java EE, JSF).
I tried to change the contents of a csv file on the client computer with a java web application, so that the client does not have to download a new file, because the file is already in the set to be used for applications in the client. so I just wanted to rewrite the csv file.
Could it be done in java web application? If yes, please give me an example. I am very grateful if there is a better solution.
No, absolutely not. You can't change the contents of a file on a client computer from a web browser. The best you could do is have them upload a version of a file and then send them another version to download. Giving write access to the filesystem would be a massive security hole.
Place the CSV on a network share somewhere. The client can edit it, the back-end server can edit it. Requires more infrastructure, of course, but may work depending on the type of application.
Not that I think this is what you want, but if the 'client computer' was also acting as the server (i.e. was the host running Jetty/Tomcat/whatever), then you could modify files on it using the java IO api.
Again, very likely not what you want, just saying it would work.
I am working on code snippet where I want to create an RED5 rtmp stream using RED5 server application. I have been searching since 5 days to get a good tutorial about the same.
All the tutorials or questions on the stackoverflow discuss about either RTMP client side code or isssues with streaming using oflademo.
What I have achieved ?
I have successfully installed and ran RED5 on my ubuntu box.
I have installed RED5 Eclipse IDE plugin and created one sample project with RED5 runtime code generation
I could see oflademo app streaming videos on rtmp
What I want to achieve ?
Have a server side jsp page showing number of connections i have received.
For this i did one small test like I defined welcome-file in web.xml withing the project i generated using plugin. But i couldnt reach to that file but at the same time if I create a project using simple eclipse wizard for tomcat my welcome file thing works.
After getting each request I want to start an rtmp stream for that client.
I tried reading code of oflademo but really couldnt understand the code. Most of the things are commented or probably something I am missing while reading that code.
Thanks in advance.
One solution I found is to go back to 0.9 version, 1.0 RC has some issues. I switched back to 0.9 and everything seems working.
I need to write some code in Java to upload a file(.tz format) to a URL(prqs#vks.com) by using HTTP PUT/POST and SMTP.I have no idea how to do this and my application is not a web based application i have to write a pure java client to do this. I searched the net but could not find a suitable tutorial on how to do this also i found a lot of stuff where in they are uploading file using a HTML form to a server. but that is not what i want.
Can you please let me know how this is to be done. If you can direct me to a tutorial or provide any sample code then it would be very helpful. I am scratching my head on this for a long time now.
Thanks
vikeng21
I do this all the time from a server side Java Application.
If what your asking for is creating an e-mail with an attached file in .tz format then there are some good resources out there.
I personally used the JavaMail API. It comes with attached JavaDoc and examples. Take a look at the samples in the demo directory within. Hopefully it should help you out.
Java Mail API
You can try out Apache Commons Fileupload for uploading files.
Have a look at this example as well. This might work for you
I have my web application made using JSP, Servlets,Java and Tom cat running on server.I want to upload a tab delimited file from the local system to a local folder in that server so that my application can picks it up..Can anyone help me please...
Use the Apache Commons File Upload
Following are few examples : Example 1
Example 2
Take a look at commons-fileupload, which makes this pretty easy.
I have written and shared the code in the gits and blogged about in the subject of Upload a file using JSP
And underneath i am using the commons-fileupload
I have exported some Processing code (outputs sensor data to a textbox) to an
applet that includes the .jar and .html files. I have tried to insert this html on a
simple website that I created and the java applet doesn't work. Do I have to somehow
modify the html? I know that the .jar files are already in the same directory and
are referenced appropriately in the exported html code. Is there a better approach
to posting to a website? Thank you
I don't think that it is possible, due to security restrictions on applet communication.
More than likely you will have to write a small client/server program using sockets.
The idea would be to transmit the the output from your locally running client application to your applet(server) which would receive and display the data.
You could use any language with socket support obviously(Flash, PHP, etc.), but I assume you will want to stick with Java.