setting for the session.
Concat_null_yields_null
Bit
The CONCAT_NULL_YIELDS_NULL setting for the session.
Transaction_isolation_level
smallint
The transaction isolation level of the session. 0 = unspecified 1 = uncommitted Read 2 = Read Committed 3 = repeatable 4 = Serializable 5 = Snapshot
Lock_timeout
Int
The LOCK_TIMEOUT setting for the session. The value is measured in milliseconds.
Deadlock_priority
the HTTP response, noting that the header can only be sent once, that is, the start_response () function can only be called once. The Start_response () function receives two parameters, one is an HTTP response code, one is a list of HTTP headers, and each header is represented by a tuple containing two str. Generally, the content should be-type hair to the browser. Many other commonly used HTTP headers should also be sent. Then, the return value of the function B''Sends the body as the HTTP res
PHP Get server time (solve 8-hour gap problem) below these three to get the current time is very good to solve the 8-hour gap problem, as long as the acquisition time before adding Date_default_timezone_set (\ "asia/chongqing\"); When we solve the time zone problem, we usually use the date (), which will have jet lag problem.
PHP Tutorial
All along, we want to use JS to get accurate time, that is, Beijing time, when after all, JS is the client language, can only get to the local time, and this in our project is often inaccurate, we can not guarantee that the user's computer time is accurate, So we typically use the server-side language to get the server
http://www.thinksaas.cn/group/topic/133101/Although get and post problems are very old, but as a web developer for this understanding is really necessary, in fact, when it comes to get and post, there can be doget and dopost and the client jump and the service side jump difference;The difference between GET and post:First, ge
Server.js Code://built-in HTTP module, provides HTTP server and client functionality (path module is also built-in module, MIME is add-on module)varHttp=require ("http");//Create a server, create an HTTP server to invoke the Http.createserver () function, which has only one parameter, is a callback function that the server
With the increasingly mature and popularization of HTML5 websocket technology, we can use the websocket to make it easier to get through BS and CS--because the websocket in B/s can be directly connected to the server of C/s and the two-way communication. As shown in the following: I. Requirements for the socket serverWe can try to get the socket
the fin, which is considered an error after receiving the RST from the server side. If the TCP protocol can complete the necessary operation to terminate the traffic of the two sides, it is necessary to transmit the four sections of the four handshake completely correctly, and there must be no loss. This is why the socket is still in the TIME_WAIT state after it is closed, as he waits for the ACK to be re-sent.This article is from the "Output Diamond
In the previous article talking about Service Manager as the path of Binder daemon of the Android interprocess communication (IPC) mechanism, this paper introduces how Service Manager becomes the daemon of binder mechanism. As a daemon, Service Manager's job is, of course, to serve the server and the client. So how does server and client get a Service Manager int
a little experiment. Open node Repl at the command line and test it:1 > node2 > typeof (null); 3 ' object ' 4 > typeof ([]); 5 ' object ' 6 > typeof (document); 7 ' undefined ' 8 > typeof ({}); 9 ' object 'You can see that null, [] (array type), {} (object type) are objects. Because in JS everything is the object. In an interactive environment, document is a variable that is undefined, so its type is undefined. If you test under typeof (document) under a browser environment, it is also an objec
Java can only get once, to the page time is static, but through the cooperation of JS and Java, cleverly realize this function
Java Get server time, dynamic display to JSP page, everyone is to Java can only get once, to the page time is static, but through the cooperation of JS and Java, cleverly realize this function
Ubuntu server apt-Get install apache2 PhP5 mysql5
Place mysql5 + apache2 + PhP5 + phpMyAdmin in apt-Get mode:
Master please take a look at the Ubuntu wiki, (http://wiki.ubuntu.org) above is very specific. However, I did not enjoy it for the first time. Apache2, PhP5, and mysql5 can be run, but phpMyAdmin cannot be used.My resume is: after MySQL happy Cheng, you
As the front-end uses Nginx as the proxy server, the proxy backend Web server and the Tomcat server, the client IP that discovers the back-end server's access log records is the nginx reverse machine IP, so, the following method can let the back-end server get to the real cl
JS is run on the client script, rather than running on the server, usually, through JS acquisition time when the time is the local computer visitors time, in order to make the page on the time not because of the difference between the visitors computer, we have to direct JS access to the server time.
The following is the complete JS get the
Note: To resolve unable to get view server version from device, also root first, the following first describes the root processFirst, Xiaomi phone root process1. First to set up the Xiaomi account on the phone, located in the settings-Xiaomi account2. Login http://www.miui.com/, there is an "unlock" menu in the upper right corner of the webpage, such as a red boxFigure 13. Use the account set on the phone o
Use JS to do time correction, get the local time, there is a bug.The use of JS can also get to the server time, the principle is to use the AJAX request, the header information returned contains the server-side time information, get to it. Following:1. Rely on jqueryCode:fun
returned from the server after the request is made. The types you can specify are XML, HTML, script, JSON, JSONP, text. If not specified, jquery is judged based on MIME and returns a type in the following XML, JSON, script, and HTML.Method, String. The HTTP request method, which defaults to get, is specified in the code above as post.Success, type:function (anything data, String Textstatus, jqxhr jqxhr), a
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