This article mainly describes, if paused, or network segment, and then there is a recovery, and then continue to download.
First, we'll add the database Greendao
Step 1: First create a Java modle in the project. As shown in figure
Step 2: Create the Dbgenerate file,
public class Dbgenerate {public
static void Main (String args[]) {
//version number \ Package Name
Schema schema = new sc
PHP file packaging and downloading: Use the ZipArchive zip file that comes with PHP and download the packaged file. Summary:
Four headers () are required for downloading files using PHP. For more information, see my another blog post: how PHP implements the download functio
Summary:Four headers () are required for downloading files using PHP. For more information, see my another blog post: How PHP implements the download function? detailed Process AnalysisWhen calculating the file size, you do not need to open the file first. You can see through filesize ($ filename) that if you need to open the
Summarize:
The operation of using PHP to download files requires four headers () to refer to my other blog post: How PHP implements the download function hyper-Detailed process analysis
When calculating the size of a file, you do not need to open the file first, through FileSize ($filename) you can see that if you nee
In the past few days, we have implemented an APK version update function, and found that it involves a lot of things. I have written the relevant content into a relatively independent category for future reference and share it with you. You are welcome to criticize and correct it.
The following classes are implemented:
(1) File Download: a custom class is designed. You only need to input a Handler, URLStr,
Asp.net implements the MVC file upload/download function example tutorial, mvc upload/download
The upload/download function is a very common feature in programming. It is widely used in ASP. NET program development. This article uses instances to implement this function.
I. Overview
If you only have the background of A
(1) Create the nsurlsession and set up the agent, through the Nsurlsessiondownloadtask and proxy way to complete the large file download //1. Create Nsulrsession, set agent self.session = [nsurlsession sessionwithconfiguration:[ Nsurlsessionconfiguration Defaultsessionconfiguration] Delegate:self delegateQueue:[ Nsoperationqueue Mainqueue]]; //2. Create task nsurl *url = [NSURL Urlwithstring:@ "Http://120.2
1. Functions based on downloading files on the Web
Public Function Putfile ($file _dir, $file _name) {$file _dir = Chop ($file _dir);//Remove extra spaces in the path//Get the path of the file to download if ($
Summary:
Using PHP to download the file needs to give four headers (), you can refer to my other blog post:how PHP implementation of the download function ultra-detailed process analysis
Calculate the size of the file, do not need to open the file, through t
Check if the form is complete ...
if ($form _completed) {
Header ("Location:http://www.myweb.com/download/info_check.exe");
Exit
}
?>
Or:
Start Download file
Copy CodeThe ID is used here to receive the number of the file to
The recent export of a PHP memory overflow problem, the reason is that the download time to read the generated temporary file is too large, PHP memory can not be accommodated, in the thought of changing the PHP memory limit, but this is only a delaying tactic, so think of another way is to read the file, and download.
In PHP file download will take advantage of the header fopen fread three main functions, while there are some auxiliary functions such as determining the existence of the file file_exists is_file, such as functions, let's look at a file download can limit the
Do not use the database to implement the user's simple download, the code is as follows, but can not download, please master to find the reason, the file road strength or anything.
function Down_file ($file _name, $file _sub_dir) {
To prevent garbled use of function ico
Use phpciforce_download($filename, $data‑download .csv file to solve file name garbled. use php CI force_download ($ filename, $ data) to download .csv file to solve file name garbled and file
Know how to download the file path from the browser (the file is the source file). at the end of this post, u013293559 is edited from 2014-02-. learn how to download the file path from the browser (the
Php download problem. after the download, the file content is blank, and the image is not previewed. There are two files, a. php and B. php.
Click the link in a. php to download the file: the code is as follows:
This is a. php
This is all B. php code.
Reply
Sometimes we need to hide the real file, prevent malicious download, we can use the following method (refer to the network, infringement please inform)The following is the referenced content:$file _name = "Example.exe";$file _dir = "/public/www/download/";if (!file_exists ($
* Session NsurlsessionNsurlconnection to manage public resources such as cookies and authentication information through a global state, if two connections need to use different resource configurations, they cannot be resolved.This problem can be solved in nsurlsession, nsurlsession simultaneously corresponds to multiple connections, the session is created by the factory method, the same state information is used in the same session, Nsurlsession supports three sessions of the process:1. Defaults
Recently, a php memory overflow problem occurs because the temporary file generated during download is too large to accommodate the PHP memory, however, this is only a slow task, so I thought of another method: to read and download files in multiple parts.
The source code is as follows:
Copy codeThe Code is as follows: $ SourceFile = "1.tmp"; // temporary
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.