last modified date

Data Write cache: Leveraging Redis between Database and serverThis is a very common scenario. For example, the number of views of the article, each time the article is browsed, the number of views are +1. If the database is written back every time,

Cacheweb缓存可以自动保存常见的文档副本的Http设备，当web请求到达时，如果本地已有缓存副本，则直接响应。下面会解释http如何保持副本的新鲜度，以及缓存和服务器通信的问题。 Redundant data transfer is Bandwidth bottleneck: The general LAN bandwidth is relatively high, the metropolitan area network bandwidth is low,

The header field is used to provide the browser and server with the message body size, language used, authentication information, etc.4 Types of header fieldsGeneric header FieldRequest Header FieldResponse Header FieldEntity header FieldDetailed

Network programmingrelated Basic Concepts :1. Computer Network and Internet2. TCP/IP protocol3. Internet addressIP address, shaped like xxx.xxx.xxx.xxxDomain Name System. such as www.edu.cnURL (Uniform Resource Locator)Protocol://HOST [: Port]

Public abstract class urlconnection{public URL GetURL () //Return the currently connected URL object public int Getcontentlength () //Returns the length of the resource file public String getContentType ()//returns the type of the

Before encountering a problem, is to use WebClient upload files at the same time, but also post form data field, the first thought that WebClient can be directly done, the results found that if the first post form field, you can only get fields and

This article explains the basic operations of Java files, including Java to create files and folders, Java delete files, Java to get all the files of the specified directory, Java to determine whether the specified path is a directory, and the Java

On the network, there are some cache servers, and the browser itself has caching capabilities.For example:Document The 1th time you visit this page, the normal download picture, the return value is 200:Packet capture analysis of the response

Representational State transfer (representational-transfer,rest) has been widely accepted in the Web, and is based on the SOAP and Web Service Description Language (Web services Description language,w SDL) is a simpler alternative to WEB services.

This article turns from http://www.cnblogs.com/gbyukg/p/3326825.htmlDownload a single file and print the output to standard output (STDOUT) by defaultCurl http://www.centos.orgSave the downloaded file to the specified file with the-o/-o option:-O:

HTTP Header Explanation================================================?AcceptTell the Web server what type of media you accept, */* represents any type, type/* represents all subtypes under that type, Type/sub-type.?Accept-charsetThe browser

Use javascript in HoTMetal5. How to write a script to check the Last modified DateIn this tutorial, you will learn how to write a macro to check whether any program has used HoTMetaL to modify a file. This macro includes the update features of the

BasisREST defines a set of architectural principles that you can use to design a system-resource-centric WEB service, including how clients written in different languages process and transfer resource state over HTTP. If you consider the number of

Definition and usage The filemtime () function returns the last modification time of the file content. If successful, the time is returned in Unix timestamp format. If it fails, false is returned. Syntax Filemtime (filename)   Parameters

JAVAEE -------- Filter set whether to cache (Filter) On a webpage, some requests are not required for each client to access the server, such as images and videos. This increases the workload of the server. To prevent this, we use a filter to set

Opening wordsAs a front-end rookie, always in the interview when asked some optimization problems, to tell the truth, the answer is always guilty, because really did not really do the optimization contrast, do not know where to start, today in the

CollectionOriginal address: http://www.thegeekstuff.com/2012/04/curl-examples/Download a single file and print the output to standard output (STDOUT) by defaultCurl http://www.centos.orgSave the downloaded file to the specified file with the-o/-o

This article for you to introduce the HTTP header information, Chinese and English comparative analysis, or relatively comprehensive, if you are in the use of the process encountered do not understand, you can properly refer to theHTTP Header

1. Why Java EE is requiredThe JSP code we write, because of a large number of display code and business logic is confused, nested with each other, is not conducive to the maintenance and extension of the program. When business requirements change,

1 PackageCom.laurdawn;2 3 ImportJava.io.File;4 Importjava.util.Date;5 6 Public classTest {7 8 Public Static voidMain (string[] args) {9 //TODO auto-generated Method StubTen WorkSpace (); One } A - Public Static voidWorkSpace