Programmer Help

asp.net using Application to restrict single sign on Principle: after the user logs in, the system will assign a session ID that uniquely corresponds to the user, and save the corresponding between the current user ID and its session ID in the Application. Once the user logs in repeatedly in other places, the saved session ID in the Application ...

@Annotation details of JsonAnySetter @JsonAnyGetter These two properties are used to convert redundant fields back and forth through Map during serialization and deserialization @JsonAnyGetter 1. The method is non-static and has no parameters. The method name is optional 2. Method return value must be Map type 3. Only one met ...

Recently, in our table, we need to change the display mode of data, that is, jqgrid is displayed in the form of tree. Please look at the picture first: 　　 It's a simple way of subordination. But because the official document was not found (later found, but found that it was translated, not very clear), so it's a little bit difficult to do i ...

Beijing is so big, there is always a house for itself; I. select the target website: Chain [lian] family [jia]: https://bj.lianjia.com/Click [rent] to enter the home page:This is the home page to climb; 2. Take a page first 1. Analysis pageRight click the link of a house source and click [check], as shown in the figure:Enter the developer mode ...

1. Write in front I've been blogging for a while, but I suddenly forget that the blog of blog channel can also be grabbed In fact, it's very simple. Open the CSDN blog homepage. Isn't it the latest article? It's all the latest articles. Open F12 to grab the data API, and it's easy to get his interface Extract links to look like this https ...

Version environment Spark: Spark version 2.2.0Phoenix: APACHE_PHOENIX-4.14.0-cdh5.14.2HBase: Version 1.2.0-cdh5.14.4JDK: java version "1.8.0_74"Java(TM) SE Runtime Environment (build 1.8.0_74-b02)Java HotSpot(TM) 64-Bit Server VM (build 25.74-b02, mixed mode) Achieve goals: sparkstreaming receives the data from kafka, and writes the data to hba ...

Now we are setting up a log analysis system for e-commerce platform, which needs to be combined with visualization to achieve an intuitive effect 1. Build the springboot project and maven project, which is the overall structure of the project 2. Background code: @RestController @RequestMapping("/wanglk_bds") public class VisualC ...

Overview 1 stage of operation and maintenance management 1 manual phase Stare at the server manually. If there is a problem, go to the front of the machine, look up the log, check the status, and operate manually 2 script phase Start to write some automation scripts, start scheduled tasks, automatically start services, monitoring services, ...

In the spring boot project, to write unit test cases, you need to rely on four jar s. One is the most basic JUnit, followed by spring test and spring boot test. <!--test--> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <versi ...

Preface At present, the company uses ProtoBuf for front-end and back-end data interaction. Since entering the company, it has been using the basic database written by the company's God. It has no idea how the bottom layer is parsed. Once an error is reported, it can only ask for people. As an ape with a deep research spirit, it is necessary to ...