If you often feel that apt-get or aptitude packages are slow to install on Debian or Ubuntu systems, there are several ways to improve this situation. Have you considered changing the default mirror site that is being used? Do you have the possibility of excluding the upstream bandwidth of Internet connection as a bottleneck?
If not for these reasons, you can try a third option: using the Apt-fast tool. Apt-fast is actually a shell script container around apt-get and aptitude that speeds up the
PHP downloads the remote image and saves it to the local method summary ,. PHP downloads remote images and saves them to a local directory. functiongetFileSize ($ url) {$ urlparse_url ($ url ); if ($ fp @ fsockopen ($ url [h PHP downloads remote images and saves them to the local method summary,
1. function for obtaining remote file size and information
function
How thunder downloads
2007-04-21 23:03:26
1. What is thunder?Thunder is a p2sp-based download software that greatly improves the download speed.The principle of p2sp is not complex, that is, if multiple servers have the same file, when a user downloads this file from one of the servers, thunder will automatically find several other servers and download this file to speed up.Thunder is a hooligans.
project and a nonprofit organization whose goal is to develop a free Linux-based operating system.Official website: http://www.mageia.org/zh-cn/: http://www.mageia.org/zh-cn/downloads/UbuntuSystem: LinuxBased on: Debian, UbuntuOrigin: Manx (The Sea Island between England and Ireland, the Royal territory of England)Architecture: i686, PowerPC, x86_64Desktop: UnityCategories: Beginner, Desktop, server, life, netbookUbuntuUbuntu (Friend extension) is a
Sometimes we need dynamic display visits, download times and other effects, we can use jquery combined with background PHP to achieve a scrolling digital display effect. This article will combine the example using jquery background animation plug-in, the number as a background image, timed to let the background picture scrolling, so as to achieve the effect of scrolling numbers.
This article takes a real-time download of a product as a scenario, the foreground executes JavaScript regularly to ge
In the past, we must know that in the Web application, we may encounter the provision of file download function requirements, such as I used to do a customer license management system, customer purchase ERP system, usually we will be based on the machine code of the customer's machine to generate a license file, and this license file is time-limited , expires after one year, the customer will need to re-obtain the license after expiration to indicate the continued use of our super Bull B product
course, because the offline download and the module between the application independent, this problem is relatively good evasion.(3). Offlineservice Process if the default and application-consistent, but Offlineservice inherited Intentservice, can avoid restarting the problem, this is the "Pro Android 3" book mentioned in the method, very good, but very sorry, I have only recently seen that I do not have a personal test at the moment and I dare not try it at work.Scenario 3 is arguably the best
Php downloads the image address from the collected content and replaces the local address ,. Php downloads and replaces the image address in the collected content with the local address, and obtains all the addresses in the string to an array. We use the preg_match_all function code to copy the code as follows? Php $ php downloads the image address from the colle
file to make the file path output image)
1. images or resources exist in databases and are output as streams,
2. Like the above, it only exists in the folder, and the output is loaded as a stream.
3. if the download is not converted to a stream, you can add a button to the server to hide or dynamically generate the resource link, but the image cannot. because the image is displayed by default
Then let's talk about a solution to prevent downloads
, which is where Maven downloads will be downloaded.In the Conf setting.xml find the position of the 55th line, in the inside of the non-annotated place, add:For example, here is the Jar folder I just created:2, after right-click computer/My Computer, Management/properties, advanced system settings (WinXP not), locate the Advanced tab, environment variables.For example, create a new one after opening:Variable name: maven_homeThe variable value is the
This article describes the Android programming development implementation with a progress bar and a percentage of multithreaded downloads. Share to everyone for your reference, specific as follows:
Following the previous "Java Multithreading download instance detailed", it can be transplanted into our Android, the following is the specific implementation of the source code:
Downactivity.java:
Package com.example.downloads;
Import Java.io.File;
the CPU divides the time slice to perform alternately, if a application uses 99 threads to download the file, then it occupies 99 user resources. Suppose the average CPU execution time allocated to each thread in one second is that the 10ms,a application gets 990ms of execution time in one second of the server, while the other applies only 10ms execution time in a second. Just like a faucet, where the amount of water per second is equal, it must be more than 10 milliseconds to put 990 milliseco
, and, this way, The advantage is that no additional package is required.
3. After downloading the files, it is best to add the following two lines of instructions:
Response.setstatus (response. SC_OK);
Response.flushbuffer ();
Without these two lines, it is often possible to see the error message "Connection Rest by Peer" in Error.log, and, more seriously, the servlet/jsp that performs the download will not end, and it will take quite a long time to Timeout, if the download time More than a few
The server provides a file download, typically using a URL pointing to a file in the server to provide downloads.
But this can not be statistics, permission detection and other operations.
Therefore, the general use of PHP to provide downloads, the code is as follows:
process Chinese file name:
Use PHP ReadFile, need to go through the PHP layer, if you can directly through Apache to send files to the u
Project Source Download
Https://github.com/Wang-Jun-Chao/AndroidProjects
Multi-Threaded Download
Principle: Server CPU allocated to each thread of the same time slice, the server bandwidth evenly allocated to each thread, so the more threads the client opens, you can preempt more server resources
Determine how much data each thread downloads
Send HTTP request to download address
String path =
url url = new URL (path)
ht
application parsing of the. mdb file. Note that the selected DLL (or EXE) here does not seem arbitrary. If you choose improperly, the MDB file can still be downloaded. You are advised not to select asp. dll. You can perform multiple tests on your own. Download the modified database, for example, http://www.test.com/data/dvbbs6.mdb, and the Error 404 or 500 will occur ).
8. advantages of using. net
The wooden bird on the Internet has written a "WBAL anti-leech tool" to prevent illegal file
Use FtpClient to upload downloads in JavaIn Java programs, often need to deal with FTP, such as uploading files to the FTP server, download files, this article briefly describes how to use the Jakarta Commons in the FtpClient (in the commons-net package) implementation of the upload download file.First, upload filesThe principle is not introduced, we directly look at the code bar1 /**2 * Description: Uploading files to FTP server3 * @Version1.0 4:
ReproducedTroubleshoot Android SDK Manager updates, slow downloads, and the list of packages to install does not appearOriginal: http://www.cnblogs.com/tc310/archive/2012/12/21/2828450.htmlRecently in the Android project, found that the download SDK is too slow, but also listen to others said silently waiting for 2 days and 1 nights before finishing. This article was found.Problem Description:Android SDK Manager cannot download updates, or updates are
650) this.width=650; "src=" Http://img.mp.itc.cn/upload/20160614/3654979b25bb41eda917f5fa5b795bab_th.png "style=" border:0px;margin:0px;padding:0px;font-size:0px; "alt=" 3654979b25bb41eda917f5fa5b795bab_th.png "/>How PHP Implements file downloads 1. Set the href attribute of the hyperlinkIf the browser cannot parse the file, the browser will download it automatically. If the file is a picture or TXT, it will open directly in the browser. 2. Output f
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