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Mybatis implements simple CRUD (addition, deletion, modification and query) Database used: CREATE DATABASE `mybatis`; USE `mybatis`; DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `id` int(20) NOT NULL, `name` varchar(30) DEFAULT NULL, `pwd` varchar(30) DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8; insert i ...

catalogue 1, Overview of master-slave replication and separation of read and write 1. What is read write separation? 2. Why separate reading and writing? 3. When should I separate reading from writing? 4. Master-slave replication and read-write separation 5. Replication types supported by mysq 6. Working process of master-slave replicati ...

1. Linked list The construction of sequence table needs to know the data size in advance to apply for continuous storage space, and the data needs to be relocated during expansion, so it is not very flexible to use. Linked list structure can make full use of computer memory space and realize flexible dynamic memory management. 1.1 definit ...

String function (the following header files are "string.h") 1.strlen (find string length) prototype String counting does not need to modify the string, so it is decorated with conut; Simulation Implementation #include<stdio.h> #include<Windows.h> #include<assert.h> #pragma warning(disable:4996) //Method 1 ...

Aop related reading Before reading this article, you need to master the contents of the following three articles, otherwise it will be difficult. Spring Series Part 15: detailed explanation of proxy (java Dynamic Proxy & cglib proxy) Spring Series Part 30: jdk dynamic proxy and cglib proxy Spring series chapter 31: Aop concept explana ...

Boot load auto configuration @SpringBootApplication analysis @SpringBootConfiguration @EnableAutoConfiguration @ComponentScan( excludeFilters = {@Filter( type = FilterType.CUSTOM, classes = {TypeExcludeFilter.class} ), @Filter( type = FilterType.CUSTOM, classes = {AutoConfigurationExcludeFilter.class} )} ) ssdss@Spr ...

1, Kubedm deploys K8S cluster architecture     host name IP address Installation components master (2C/4G, the number of cpu cores is required to be greater than 2) 192.168.229.90 docker,kubeadm,kubelet,kubectl,flannel node01(2C/2G) 192.168.229.80  docker,kubeadm,kubelet,kubectl,flannel node02(2C/2G) 192.168.229.70 docker,kubeadm,kubel ...

prefaceAfter making so many sensors, I played by myself. This time, my family couldn't watch it. I had to have an ultraviolet sensor. Before I went out, I looked at the ultraviolet intensity (solemnly declare: I'm not a single dog!!! (, ◡✧) I saw that there were really suitable modules on the Internet, so I finished one. This time we will make ...

1, Thread review 1. Four ways to initialize threads 1) , inherit Thread 2) . implement Runnable interface 3) . implement Callable interface + FutureTask (you can get the returned results and handle exceptions) 4) Thread pool Methods 1 and 2: the main process cannot obtain the operation result of the thread. Not suitable for the current scene ...

prefaceAn article was posted on March 29C# WPF framework Caliburn.Micro quick buildWhich chapter forgot to post the code of app.XAML last time, but it can be seen in the source code. This section is supplemented<Application x:Class="WpfApp8.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns ...