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1 CountDownLatch The utility model relates to a disposable baffle. After the thread reaches the baffle, it will be blocked. Until all relevant threads reach the baffle, all threads will wake up at the same time and then execute down. The source code is very simple. 2 CyclicBarrier A CountDownLatch that can loop is in the code. After the ...

    Quick start Let's start with a microservice example. The official example uses the AT mode in seata distributed transaction, that is, the example is based on: Based on a relational database that supports local ACID transactions.Java application, accessing database through JDBC.. Use case Business logic for users to purchase goods. T ...

Gateway filter factory is a filter factory provided in Spring Cloud Gateway. The routing filter of Spring Cloud Gateway allows you to modify the incoming HTTP request or output HTTP response in some way, which only works on specific routes. Spring Cloud Gateway has many built-in filter factories, which can be used directly by configuration. At ...

1. Mount the CD mkdir /mnt/cdrom mount /dev/cdrom /mnt/cdrom vim /etc/fstab /dev/cdrom /mnt/cdrom iso9660 defaults 0 0 2. Create yum source [root@centos7-1 xwk]# yum-config-manager --add-repo=file:///mnt/cdrom Plug in loaded: fastestmirror, langpacks adding repo from: file:///mnt/cdrom Cannot add repo from file:///m ...

After cutting the mountain, I met suddenly The only things I can remember this week are program rehearsals, competition training and catching up with projects. However, among these things, the only thing that makes me feel is to catch up with the project. I still remember that I only logged in and registered when I was last assessed. Other thi ...

Java basic disk preface From the following points, write a separate article in detail. (ps: write only practical content) 1. Install and configure environment variables on the Mac side. 2. Basic grammar. 3. Object oriented. 4. Collection framework. 5. Exception frame. 6. IO framework (InputStream, OutputStream). 7. Multithreading. 8. ...

c++ Learning Notes 1 I am a beginner of c++. I have made some notes for you to refer to and review. I listened to Mr. Weng Kai's class on Station B. Mr. Weng Kai's class is very good. You can listen to it if you are interested. Sometimes I compare C with c++ because I have a base in C. // #include <iostream> #include <stdlib.h> us ...

Wen/Zhu Jiqian Catalog1. Introduction of Elasticdump tool2. Elasticdump Tool Installation3. Use of Elasticdump tools Recently, some work has been done in the development of Elasticsearch mapping structure and data export and import, for fear that the process will be forgotten in the future. It is not as good as bad memory, so it is recorded a ...

Python WeChat Subscription Applet Course Video https://edu.csdn.net/course/detail/36074 Python Actual Quantitative Transaction Finance System https://edu.csdn.net/course/detail/35475 By ChesiumBy Chesium\text{By}\ \mathsf{Chesium} The DPLL algorithm, fully known as the Davis-Putnam-Logemann-Loveland (Davis-Putnam-Logemann-Loveland) algorith ...

Interfaces and abstract classes are both theoretical and code difficulties. Interfaces and abstract classes work well, so the code you write tests well. Introduction Software is also a branch of the industry, and well-designed software must withstand testing. Whether the software can be tested, repaired or monitored depends on the use of ...