W3school-jquery.ajax () Document: http://www.w3school.com.cn/jquery/ajax_ajax.aspJquery.ajax (), Ajax, method loads the remote data over an HTTP request, which updates a part of the page without reloading the entire page.The $ajax () returns the
I learned a little bit about the simple hibernate in the three frames based on the video, and simply completed a small program that uses hibernateHibernate is a framework for simplifying the DAO layer of a Web program, and applying him can be
The PHP7 version was installed through LNMP, but was found to be incompatible with the program and needed to be reduced to a version below 7.0.
to find the install.sh file for LNMP, typically under/root/lnmp1.5/install.sh
execute
And made a mistake of ZZ ...It is important to note that the destroyed planet is not a unicom block (probably only I do it =)Offline down time back, it becomes a map to add the planet, that is, with and check set maintenance Unicom, in the TOT
MapMapIs the structure of a set of key-value pairs with extremely fast lookup speeds.var m = new Map([[‘Michael‘, 95], [‘Bob‘, 75], [‘Tracy‘, 85]]);m.get(‘Michael‘); // 95SetSetand Map similar, is also a set of keys, but does not store value. Since
In-depth understanding of JS engine execution mechanism
1. Soul Three Q: Why is JS single-threaded? Why is async required? How is a single thread implemented asynchronously?
Event loop in 2.JS (1)
Event loop in 3.JS (2)
4. Talk
Today take over a 09-year old project, this project is Struts2, long forgotten, the configuration file also a large pile, waste the eldest brother to solve the errors, run up, login success after jumping to the home page 500 errors, Error:
Add the following code to Web. XML and restart the server. Here Write the name of the page you want to display Add the following location: login.jsp The login.jsp page is displayed by default when you run the project.The index.jsp
node. JS is a running environment for JavaScript and is an encapsulation of the Google V8 engine. is a server-side JavaScript interpreter.Include the relationship, Nodejs contains NPM, for example, you install the Nodejs, you open the cmd input
1. Environment custom configuration file and node_env settingEnvironment customization refers to drawing different profiles based on the node_env configuration, development and test environment.Recommended module: Config-lite, use reference:
The authentication mechanism is the central mechanism for the application to defend against malicious attacks. It is at the forefront of the defense's unauthorized, and if users can break through those defenses, they can usually control the full
Today in the function of a button control, after the click, to determine the conditions, modify the style of the button, and then found a great use of the method, Add H5 adding a style to the specified element in JS
1. Install Charles on the computer2, the computer installation certificate(1) Click Help-ssl proxying-install charlse Root Certificate(2) Find the certificate on the computer. At this point the certificate is not trusted, so the front is the Red
Need Nginx as WebSocket reverse proxy, no nginx reverse proxy time no problem, through Nginx reverse proxy will report 400 error, check background debugging information:Tornado.general–debug–can "Upgrade" only to "WebSocket".By analyzing the
For PHP development projects, the general project design to the most use of Excel export functionality, and for its import functionality is generally very rare, and for PHP development in the Import function of Excel is more difficult to develop
Mega PV Site Architecture 1, experimental overview
The experimental design is implemented in four layer mode, which is mainly front-end reverse proxy layer, Web layer, database cache layer and database layer. The front-end reverse proxy
Generally we use the most is the HTTP request, but the frequent request may be caused by the pressure of the service is very large, so today talk about WebSocket long connection, one sentence: simple1. What is a long connection?A: A request to
1. First you need to register a github account and then you need to download and install Git. Download on the official website is OK, after the download is finished right click on the desktop will appear the following two icons. Click on the git
Case Overview:
The implementation of four-layer mode, mainly divided into front-end reverse proxy layer, Web layer, database cache layer and database layer front-end reverse proxy layer adopts the main standby mode, the Web layer adopts
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