Programmer Group

Command: curl In Linux, curl is a file transfer tool that uses URL rules to work on the command line. It can be said that curl is a very powerful http command line tool. It supports file upload and download. It is a comprehensive transmission tool, but traditionally, it is used to call URL a download tool. Syntax:# curl [option] [url] Common p ...

I learned Docker briefly before. At that time, it was to quickly deploy a project. It passed quickly. I was a little unfamiliar with the writing of Dockerfile files. So I wrote this article. I hope I can help you!!! 1, What is Dockerfile? Concept: Dockerfile is a build file used to build Docker images. It is a script composed of a series ...

1, Depth first search (DFS) Each time, after accessing the current node, first access the first adjacent node of the current node. You can see that this is a recursive process. Depth first traversal algorithm steps: 1. Access the initial tail node v and mark that node v has been accessed 2. Find the first collar node of node ...

Singleton mode 02: lazy mode Text start@Assassin 1. Review the hungry Han model: Briefly review the hungry man mode in a single case mode~ I'm hungry man mode! The so-called hungry man mode means that as long as the class is loaded, the object gf will be created. Even if GF is not used, it will be created. This is the loading mechanism ...

Implemented in the previous article Spring Cloud resourcesToken relayToken relay is a more formal term. In other words, it is to let the token pass between services to ensure that the resource server can correctly authenticate the caller.Can't tokens be relayed automatically at Feign?If we carry A Token to access service A, service A can certai ...

5.3.2 product list assertion 1 use response assertion 1) Right click the product list HTTP request and select "add - > post processor - > regular expression extractor". Set according to figure 15.Figure 15 obtaining product list information Modify the name to: obtain the product list information.The reference name is: name.The ...

My Ubuntu is installed with VMware and connected with. nat. By default, VMware will automatically assign one of the many ip addresses to the virtual machine installed with. nat, that is, the ip address may change. The steps to configure a static IP address are as follows:          (1) Open VMware's virtua ...

@[toc]Last week, brother song reprinted an article on batch data insertion. He talked with you about how to do batch data insertion quickly.After reading the article, a little partner put forward different opinions:Brother song had a serious chat with BUG and basically understood the meaning of this little partner, so I also wrote a test case a ...

Why design and implement the title bar yourself Whether you use qtdesigner or create a Qwidget directly in the program, the interface generated by qt program will generate a default title bar. The title bar should essentially be a border, but ico and title can be displayed on the border, and operations such as maximization and minimization ...

As shown in the figure, when we develop a Web system, we often encounter the need to use maps for display. Under ordinary needs, we can use ecarts maps. If we use ecarts to develop maps, we need to find map data, call ecarts map API, configure styles, render data, etc. a map effect takes a lot of energy and time. Here we introduce that this fun ...