compression

问题 I would like to be able to fetch a web page\'s html and save it to a String , so I can do some processing on it. Also, how could I handle various types of compression. How would I go about doing that using Java? 回答1: Here's some tested code using Java's URL class. I'd recommend do a better job than I do here of handling the exceptions or passing them up the call stack, though. public static void main(String[] args) { URL url; InputStream is = null; BufferedReader br; String line; try { url =

问题 I looked at the default Zip library that comes with the JDK and the Apache compression libs and I am unhappy with them for 3 reasons: They are bloated and have bad API design. I have to write 50 lines of boiler plate byte array output, zip input, file out streams and close relevant streams and catch exceptions and move byte buffers on my own? Why can\'t I have a simple API that looks like this Zipper.unzip(InputStream zipFile, File targetDirectory, String password = null) and Zipper.zip(File

问题 TL;DR; Is there a way to compress an image (mostly jpeg, png and gif) directly browser-side, before uploading it ? I\'m pretty sure JavaScript can do this, but I can\'t find a way to achieve it. Here\'s the full scenario I would like to implement: the user goes to my website, and choose an image via an input type=\"file\" element, this image is retrieved via JavaScript, we do some verification such as correct file format, maximum file size etc, if every thing is OK, a preview of the image is

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 8 years ago . I\'m searching for an algorithm to compress small text strings: 50-1000 bytes (i.e. URLs). Which algorithm works best for this? 回答1:

问题 I\'m pretty sure this is not a duplicate so bear with me for just a minute. How can I programatically (C#) ZIP a file (in Windows) without using any third party libraries? I need a native windows call or something like that; I really dislike the idea of starting a process, but I will if I absolutely have to. A PInovke call would be much better. Failing that, let me tell you what I\'m really trying to accomplish: I need the ability to let a user download a collection of documents in a single

问题 I need an example for compressing a string using GZip in android. I want to send a string like \"hello\" to the method and get the following zipped string: BQAAAB+LCAAAAAAABADtvQdgHEmWJSYvbcp7f0r1StfgdKEIgGATJNiQQBDswYjN5pLsHWlHIymrKoHKZVZlXWYWQMztnbz33nvvvffee++997o7nU4n99//P1xmZAFs9s5K2smeIYCqyB8/fnwfPyLmeVlW/w+GphA2BQAAAA== Then I need to decompress it. Can anybody give me an example and complete the following methods? private String compressString(String input) { //... } private String

问题 How can I enable IIS7 to gzip static files like js and css and how can I test if IIS7 is really gziping them before sending to the client? 回答1: Configuration You can enable GZIP compression entirely in your Web.config file. This is particularly useful if you're on shared hosting and can't configure IIS directly, or you want your config to carry between all environments you target. <system.webServer> <httpCompression directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files">

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . Are there any command line scripts and/or online tools that can reverse the effects of minification similar to how Tidy can clean up horrific HTML? (I\'m specifically looking to unminify a minified JavaScript file, so variable renaming might still be an issue.) 回答1: You can use this : http://jsbeautifier.org/

问题 Git uses a delta compression to store objects that are similar to each-other. Is this algorithm standardized and used in other tools as well? Is there documentation describing the format? Is it compatible with xdelta/VCDIFF/RFC 3284? 回答1: I think the diff algo used for pack files was linked to one of the delta encoding out there: initially (2005) xdelta, and then libXDiff. But then, as detailed below, it shifted to a custom implementation. Anyway, as mentioned here: Git does deltification

问题 I am newbie in .net. I am doing compression and decompression string in C#. There is a XML and I am converting in string and after that I am doing compression and decompression.There is no compilation error in my code except when I decompression my code and return my string, its returning only half of the XML. Below is my code, please correct me where I am wrong. Code: class Program { public static string Zip(string value) { //Transform string into byte[] byte[] byteArray = new byte[value