Effect: Click the table to select the map point, click the delete button to delete the corresponding point and redraw the line segment, click the OK button to save the drawn point information to the parent component and the component has realized the echo The complete component code is as follows and the file name […]
SQL injection for JAVA code audit, based on Spring boot, jdbc and mybatis
Directory 1. Create a new spring boot project with sql environment Two, JDBC SQL injection 2.1 java.sql.Statement 2.2 Sample code 2.3 Precompilation Defense and Improper Use 2.4 order by injection 3. SQL injection of Mybatis 3.1 Sample code 3.2 orderby injection 3.3 in injection 3.4 like injection Fourth, SQL injection vulnerability repair 4.1 Whitelist 4.2 […]
git rebase merges multiple commits
During the development process, there are usually countless commits locally, and multiple commits with the same function can be merged to keep the history concise. 01 git rebase command use git rebase –help # Count 3 versions from the HEAD version $ git rebase -i HEAD~3 # Merge the specified version number (not including this […]
(Part 1) Ansible-kubeadm online installation of single masterk8s v1.19-v1.20 version
The KS8 version that ansible can install is as follows: Please follow the content in this blog, and then you can query the version with the following command. [root@k8s-master01 ~]# yum list kubectl –showduplicates | sort -r kubectl.x86_64 1.20.0-0kubernetes kubectl.x86_64 1.20.0-0 @kubernetes kubectl.x86_64 1.19.9-0 kubernetes kubectl.x86_64 1.19.8-0kubernetes kubectl.x86_64 1.19.7-0kubernetes kubectl.x86_64 1.19.6-0kubernetes kubectl.x86_64 1.19.5-0kubernetes kubectl.x86_64 1.19.4-0kubernetes […]
An in-depth interpretation of model evaluation methods
Click “Xiaobai learns vision” above, and choose to add “Star” or “Stick“ Heavy dry goods, delivered in the first time “> We train and learn a good model, and by objectively evaluating the performance of the model, we can make better practical decisions. Model evaluation mainly includes: prediction error, degree of fitting, model stability, etc. […]
“Linux from Qi training to soaring” No.06 Linux project automation build tool make/Makefile [There is a small shop in the cloud] new
Author: Home My column C language from 0 to 1 Explore C++ Data structure from 0 to 1 Explore Linux Rookie Brush Questions Collection Welcome to pay attention:LikeFavoriteLeave a message Code words are not easy. Your likecollectattention is really important to me. If you have any questions, you can ask them in the comment area. […]
Vue2 Section 10 Built-in directives and custom directives
1. Commands learned before 2. Built-in commands 3. Custom Instructions 1. Commands learned before Command name Usage v-bind A single binding analysis expression can be abbreviated as: xxx v-model Two-way binding v-for traverse array/object/string v-on Binding listener event, can be abbreviated as @ v-if Conditional rendering (dynamically control whether the node exists) v-else Conditional rendering […]
SpringCloud Gateway gets request response body size
Prerequisites The premise of the method of obtaining the request and response body size in this article: The gateway only does the forwarding logic, and does not modify the request or the corresponding body content. The internal mechanism of SpringCloud Gateway is similar to the figure below. HttpServer (that is, NettyServer) receives external requests, and […]
iOS – Unzip the Assert.car file in the ipa package
After the project is packaged in Archive, a ipa package is generated Change the xxx.ipa file to the zip suffix, which is xxx.zip, and then double-click to decompress, and a Payload will be generated > folder, a file inside as shown below: Then display the package contents of the changed file: The way to unzip […]
Realize RGB control and water light effect on STM32F103ZET6
This is the pin diagram of the RGB light on my board. You can see that the corresponding pin is configured as 0, and the corresponding light can be turned on. For example: PB5 outputs 0 (others do not output or output 1), then LED_R will light up, and the RGB light will emit red […]