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Without programming, generate CRUD, add, delete, modify and check RESTful API interface based on PostgreSQL zero codereviewIn the previous article, the main functions and usage of crudapi have been introduced. crudapi 1.2.0 only supports MySQL database. In order to support more databases, the code is reconstructed and the abstract factory desig ...

introduce With the iteration of technology, SpringBoot is widely used in our daily development. When using maven to build traditional web applications, we package the projects into war packages and deploy them in tomcat. All directory resources are separated, which is very convenient for the modification of configuration files. However, if you ...

preface In the previous security, relevant configurations and tests were conducted for configuration items. But these are based on security config. Myconfig #configure (org. Springframework. Security. Config. Annotation. Web. Builders. Httpsecurity) to restrict the permission of the corresponding request. If there are multiple reque ...

5.5 the controller responds to the front-end request 5.4.1 response to synchronization request Response to synchronization request: the front end sends a request to the method in the controller class. After the controller method processes the request, it needs to jump to the next page Front end request <a href="book/list?pageNum=1&a ...

Master-slave database theoretical knowledge First step The master's operations on the data are recorded in the Binary log. Before each transaction updates the data, the master records these changes and writes them to the Binary log serially. After completing the log writing, the master notifies the storage engine to commit the transaction. T ...

688. Knight's probability on the chessboard 2022.2.1 one question per day Title Description On an n x n chess board, a knight starts from a row (column) and tries to make k moves. Rows and columns start at 0, so the upper left cell is (0,0) and the lower right cell is (n - 1, n - 1). Chess knight has 8 possible walking methods, as shown in ...

10. Multi table query of mybatis Relational database tables are divided into * one-on-one * One to many * Many to many give an example The ID number is one to one. A person can only have one ID number. An ID number can only belong to one person.Users and orders are one to many, and orders and users are many to one One user can place multip ...

JSON parsing JSON: JavaScript Object Notation JSON is a simple spectrum of JS objects and a lightweight data exchange format A subset of the JS specification developed by the European Computer Association, which is completely independent of the programming language and uses text to represent data Object format Describe the above conten ...

Transaction propagation level combination description example Configuration class package transaction; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.jdbc.core.JdbcTemplate; import org.springframework.jdbc.datasource.DataSourceTransactionManager; im ...

preface Front end usage: vue/cli "^ 4.5.15" Back end usage: springboot2 6.2, mybatis-plus3. 5.9,mybatis-plus-generator3. five point one Deployment: nginx,tomcat,webpack Summary Although the project is colorful, it is not difficult The biggest gains are: 1. Technical selection and task requirements Once determined, late changes ...