Use the scene: often we install their own module after the start to discover that a certain port is occupied, in order to ensure that their process can start normally, need to find out who occupied the port, and kill the process, and then start their own process, the specific methods of operation are as follows:
The Linux platform uses the following
: Using the lsof command, you can download the Lsof component under the CentOS platform through Yum install Lsof, and here is to see if Port 11,000t
")) {
System.out.println ("clicked on");
}
}
}
See more highlights of this column: http://www.bianceng.cnhttp://www.bianceng.cn/Programming/Java/
Of course, the anonymous inner class can be used to add a listener to the button, here is no longer detailed, it should be noted that each button can be set by the Independent button response to achieve the function between the different buttons. Is it convenient?
Finished the button response, next to introd
A single process listens on multiple ports
A single process creates multiple socket bindings for different ports, TCP, and UDP are all rows
multiple processes listening on the same port (multiple processes listen on same port)
The way you create a subprocess by fork can be done in other cases.
When the connection arrives, the child process, parent process can accept, this is the famous "surprise group" problem (Thundering herd problem).
NGINX's
Three methods of event listening and three methods of event listening
1. Add three buttons to the activity_main.xml file.
2,
Method 1: Implement event listening through internal classes
/* Method 1: Implement event listening through internal Classes */btn1.setOnClickListener (new View. onClickListener () {@ Override p
Java event listening mechanism and Java event listening Mechanism
Three aspects of the mouse event listening mechanism:
1. Event source object:
The event source object is the object that can generate actions. All container components and element components in Java are event source objects in event listening. Java ident
Js event listening mechanism (event capture) Summary, js listening
During front-end development, we often encounter the problem of adding events to page elements. There are also many js methods for adding events, which are directly added to the page structure, some js event listening methods are used. Because different browsers have different mechanisms for event
Log on to PL/SQL Developer, log on to the local database, and check that the Oracle listening service is not started. Right-click to start the listening program and report an error. How can this problem be solved ?,
I. Error description
When you log on to PL/SQL Developer to log on to the local database, no listening program is reported. Check that the Oracle
This article mainly introduces jQuery bind event listening bind and unbind removal event listening usage, the binding event listening bind and removing event listening unbind are analyzed in detail based on the instance form, for more information about how to use jQuery bind event
configuration is 16C 32G, the application itself does not have a performance problem. As the kubernetes requires a network interconnection, we use two machines when testing the kubernetes.In conclusion, the environment we are going to test is as follows:
Machine to be tested
machine configuration
Number of machines
K8s Flannel Vxlan
16C 32G
2
K8s Flannel HOST-GW
16C 32G
2
Mesos Host Mode
16C 32G
1
Android learning-four types of listening events, android listening
You are welcome to reprint it in any form, but be sure to indicate the source.Reference: http://blog.csdn.net/a78270528/article/details/46953541
XML file
The focus is to set the id for the two controls. In java code, we can find the corresponding control through the id to set the listening event
Source code of Vue listening data object changes, source code of vue listening object
When listening for changes in data objects, the easiest thing to think of is to create a table that needs to be monitored, regularly scan its values, and perform the corresponding operations if there are changes. However, this implementation method has a performance problem, if
Element full-screen setting and listening instance, full-screen listening instance
Set full screen and exit full screen
// Full screen setting $ ('# fullScreen '). on ('click', function () {fullScreen () ;}); // exit full screen $ ('# exitFullScreen '). on ('click', function () {exitFullScreen () ;}); // enter full screen function fullScreen () {var obj = document. getElementById ('editmark'); if (obj. requ
Issue: Login server times No monitoring serviceCheck the steps:1. Enter Sqlplus to view the status of the database, showing that the current database status is openScript: Select status from V$instance;2, check the database monitoring service, log in to find that the speed of entering the listener is very slowScript: Lsnrctl Status3, check the size of the listening log, the location is as follows:$ORACLE _base\diag\tnslsnr\5, restart the monitoring ca
Android prevents multiple clicks, causing event listening to respond to other interfaces. android listening
The following is a case:
Click A to jump to page B. Click B to finish. Return to page.
1. On the page B, set the Click Event and click Finish B.
V. setOnClickListener (new OnClickListener () {@ Overridepublic void onClick (View v) {B. finish ();}});
2. If you click B multiple times in A row a
Android development-listening for phone calls and android-listening for incoming calls
TelephonyManager is a service class that manages the call status and network information of a mobile phone. It provides a large number of getXxx () methods to obtain information about the telephone network. For details about TelephonyManager, refer to Android development to obtain SIM card information of mobile phones.
Pr
Configure listening _ 1521 port occupation, and listening _ 1521 port occupation
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Deep Blue blog: http://blog.csdn.net/huangyanlong/article/details/43935361Premise cashback
Changed the host name from hyldb t
Content observer implements SMS listening and observer SMS listeningContent observer implements SMS monitoring
The content observer monitors whether the text message changes. If the text message changes, the content provider reads the text message.
Principle:
When a text message changes (for example, a text message), the text message application notifies the content observer that my text message has changed, and transmits the uri of the text message w
Data listening and Data Interaction in vue, vue data listening data
Now let's take a look at the data listening event $ watch in vue,
Js Code:
New Vue ({el: "# div", data: {arr: [1, 2, 3]}). $ watch ("arr", function () {alert ("data changed ")})
Html code:
This is the array listening. We also use json, but we have to
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