Centos8 deployment elastic search 7.6.2 + kibana 7.6.2

Written in the front This article is an essay record of the author in setting up the ES learning environment. If it is for self-test, it can be carried out according to the content of the article. The following configuration should not be placed in the production environment. Server: alicloud ECS Operating system: Centos 8.0 64bit, install ...

Posted on Mon, 06 Apr 2020 07:12:08 -0700 by Bendude14

How are spring application objects built? SpringBoot source code

Note: the source code analysis corresponds to spring boot version 2.1.0.RELEASE This connection What is the starting process of SpringBoot? Spring boot source code (7) Learn from the past Let's review the contents of the previous article. In the previous article, we analyzed the startup process of SpringBoot, and now we summarize the key steps: ...

Posted on Mon, 06 Apr 2020 04:56:42 -0700 by isam4m

Spring learning -- sql parameter injection of JDBC template

Turn around: sql parameter injection of [spring] JDBC template demo @Repository("jdbcDao") public class JdbcTemplateDao { @Autowired private JdbcTemplate jdbcTemplate; @Autowired private NamedParameterJdbcTemplate namedTemplate; private final static List<String> names = new ArrayList<String>(); priva ...

Posted on Mon, 06 Apr 2020 04:11:29 -0700 by jungalist

HTML5 game development example

Development tool: vscode 1, Character puzzle The game is introduced: the jigsaw game divides a picture into several pieces and randomly scrambles them. When all the pieces are put back in place, the puzzle is finished. In the "game", click the slider to select the game difficult and easy, "easy" is a 3-row 3-column puzzle, i ...

Posted on Mon, 06 Apr 2020 03:55:20 -0700 by harman

Use python to write a desktop pendant. Take your hands and make a desktop pet

  Introducer Some time ago, a little friend left a message saying that I would like to take you to write a small desktop pendant. Today, I would like to meet the request of a little friend who has left similar words. But I feel that it is not interesting to write a desktop calendar, so I will simply take you to make a desktop pet~ Don't talk t ...

Posted on Mon, 06 Apr 2020 02:15:44 -0700 by SBukoski

A Url encoded pit encountered in the use of Retrofit network framework

Retrofit is a type safe network request framework for Android and Java platforms. The network module of the project is encapsulated by retrofit framework; In the development process, the third-party sdk is used, and the data output by the third party should be uploaded to the server, but the + output from the sdk is transmitted to the ...

Posted on Mon, 06 Apr 2020 01:39:32 -0700 by markstrange

Summary of k8s add node operation exceptions

Environment: k8s cluster with kubeadm mode not Question: 1. Check the versions of kubeadm, kubelet and kubectl installed in the source system [root@k8s-3 ~]# yum list kubeadm kubelet kubectl  //Loaded plug-in: fastestmirror Loading mirror speeds from cached hostfile  * base: mirrors.nju.edu.cn  * epel: ftp.riken.jp  * extras: mirrors.nju.edu.c ...

Posted on Mon, 06 Apr 2020 01:00:14 -0700 by ldmccla

python learning note 1

According to a THU God who knows how to answer with high votehttp://nbviewer.jupyter.org/github/lijin-THU/notes-python/tree/master/ Just sort out something I don't think I'm familiar with For acmer or some children's shoes familiar with C + +, I think there should be some references I think python is a future language. One day, it will replace ...

Posted on Mon, 06 Apr 2020 00:47:48 -0700 by wyrd33

Android share control

Nowadays, many applications provide the function of sharing information to the outside world. When sharing, the user usually pops up a list of all applications with sharing function from the bottom of the screen, and then selects them Now I'm going to simulate this effect, not only to make the sharing control pop up from the ...

Posted on Mon, 06 Apr 2020 00:35:39 -0700 by robvan75

dubbo @Activate annotation usage and implementation parsing

The Activate annotation indicates whether an extension is activated (used). It can be placed on the class definition and method. dubbo uses it on the spi extension class definition to indicate the activation condition and time of the extension. First look at the definition: @Documented @Retention(RetentionPolicy.RUNTIME) @Target({ElementType.T ...

Posted on Sun, 05 Apr 2020 23:28:48 -0700 by Drachlen