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Closed 11 years ago.
Possible Duplicate:
How do you Programmatically Download a Webpage in Java
How to download a file using java. So for example, I want to construct a program which will take some input e.g the website download. and then download the file. Please note that I am not looking for the code or anything. I just want to be pointed in the correct direction and that's it.
If you want to download a file from a URL, have a look at java.net.URLConnection.
Have a look at this Stack Overflow question:
How do you Programmatically Download a Webpage in Java
By using HttpURLConnection (better than java.net.URLConnection IMHO)
URLConnection.getInputStream() is what you're looking for. Moving the actual bytes is a bit tedious and error-prone, so if you just want to get it done, using an existing, tested implementation like FileUtils from Apache commons IO would be the best idea.
Related
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How to get a JavaDoc of a method at run time?
(5 answers)
Closed 7 years ago.
I would like to display some text before service class run. This text could be HTML, generated from class' javadoc. Is it possible to access/generate it from class itself?
Now with Java 8 you have a whole interface to play with comments and documentation. Check this package com.sun.source.doctree
You need access to the source code files to be able to read comments. If you don't have access (which is most likely the case if you want to read the comments at runtime) you will have to use another solution, like providing the text as a string or resource file.
It's possible to get comments using the Java Compiler API. See: How to access comments from the java compiler tree api generated ast?. The problem here is you still need to know where the source code files are located on the system, if they are even there at all.
Another solution is to use an annotation processor. It has the advantage that it provides you with an abstract representation of the source code without the need to manually read files. You would need to identify the class you want to read the comments from and then use Element.getDocComment.
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Run Java class file from PHP script on a website
(5 answers)
Closed 9 years ago.
I created a JAR file and i need to call its methods from a Php file. I tried doing it with Php-java bridge but, it works only with sun java 6 which is an abandoned version. Also, i feel that using php-java bridge is not the best way of achieving what i want as it was updated ages ago. Are there any other methods which i can follow to call my java functions from a php file?
Execute your java programm from PHP with shell_exec(comand to start your java programm), it will return you the output from your java programm as string. http://www.php.net/manual/en/function.shell-exec.php
See Run Java class file from PHP script on a website.
In a nutshell: Use PHP's exec() function. It needs to be done very carefully, as described in the referenced issue, but if you do it right, (I've found) it can be a cleaner solution than the bridge method.
I want to create a .dst embroidery file using Java. Are there any supporting libraries available? Or is it possible to convert any kind of image file to the .dst embroidery file format using Java?
Can anyone suggest any algorithms, encoding-decoding methods, etc?
I am the developer at Embroidermodder working on formats (the link mentioned by theJollySin).
I don't have any Java code, but I can point you to some preliminary documentation of the format (http://www.achatina.de/sewing/main/TECHNICL.HTM).
What are you trying to create in DST? I can assist you with whatever issues you have getting your Java code running.
The short answer to your question is, no. There are currently no popular libraries for generating .dst embroidery files with Java. My guess is that you will have a lot more luck trying to convert other file types to the .dst formats. The only option there (that I know of) is Corel Draw.
In the end, the best solution I can think of is to use the Tajima Ambaasador website. You have to register, but I believe most of their design/DST services are free.
(After some searching around online I also found this website, which has some more free software and seems like the best place to start if you're looking for information.)
Yes. I've written exactly such a library for python (pyembroidery) and trancoded that to java. It will work for both Android and Oracle Java and has fully fleshed out reading and writing of most major embroidery formats.
https://github.com/EmbroidePy/EmbroideryIO
As part of a parallel project I've also done a considerable amount of work documenting various formats for a wiki on the topic. Located here:
https://edutechwiki.unige.ch/en/Embroidery_format
Which also has all the known technical details for DST file formats:
https://edutechwiki.unige.ch/en/Embroidery_format_DST
As for the second part of the question, embroidery files are vector-like files which provides a series of commands to be issued to an embroidery machine. You cannot directly convert raster-based image files to embroidery because the pixel information does not directly convert to any sort of embroidery machine command instruction structure.
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Closed 11 years ago.
Possible Duplicate:
version to folder using java programming
In my Java web application project,I need to add versioning to one of my Images folder,if user done any modification to image and updated then it should maintain new version on recently updated image(similar as svn), to do this i decided to integrate svnkit in my project please tell me how to do this programming or implementation.
This is similar to a question posted earlier... Anyway, SVN is not a very good choice in my humble opinion as it is suppose to be used with text-based files. Why do you want to call a 'diff' on binary files? ...and why? I would recommend one of the following:
Store the images as blobs in a database, that included an MD5 sum of the file, date modified, etc.
If you don't like blobs, store the images in a folder with a time extension (i.e myimage.jpg.20111112_092311_1) and store the md5 sum of the image somewhere else so that you know it got modified.
I have worked with SVN in java apps before. I do not find SVN particularly trustworthy. I would recommend you think carefully before going that route. Your own implementation may actually be better here.
(For md5 sums, search for MessageDigest)
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Please help me figure out what's wrong with this web proxy code
(6 answers)
Closed 7 years ago.
For example look at ninjavideo's divx player source. It is this:
src="http://127.0.0.1:64651/nv/47244"
How do they use the java applet to output the src as a divx readable file?
Source: http://beta.ninjavideo.net/video/47244
Warning: You will need to allow java applet
It's not "masked" it's just running as a local HTTP proxy. It downloads the file from a HttpURLConnection and listens locally for connections and serves up the video. Here's a (not so great) example: Please help me figure out what's wrong with this web proxy code