[SpringBoot Practice] Transaction and transaction propagation mechanism & failure reasons & suggestions for correct use of transactions

Article directory 1 Overview 2. Affairs and transaction communication 2.1 Declarative transaction description 2.2. Reasons for the failure of declarative transactions 2.3.Transaction mechanism 2.4. Reasons for transaction propagation failure 3. Suggestions on transaction usage 4. Summary 1. Overview We often use transactions in our development work to ensure data consistency when adding, deleting, and modifying […]

the cryptopals crypto challenges set 1 part 2

I wrote the remaining questions today: Implement repeating-key XOR Break repeating-key XOR AES in ECB mode Detect AES in ECB mode Ideas and code 1 Just use the previous fixedxor function, but it is easy to cause some coding problems when implemented. The problem I encountered is that when converting strings to binary/hexadecimal, I directly […]

Experiment 1 Estimation of mobile channel propagation model (Hata-Okumura model)

1. Experimental purpose 1. Be familiar with the MATLAB program editing and development environment, and master the specific methods of using this software to solve mobile communication problems; 2. Master the basic knowledge of radio wave propagation loss calculation; 3. Master the use of Hata-Okumura model prediction methods to implement wireless propagation loss prediction systems […]

Propagation behavior and isolation of spring things

About the @Transactional annotation: Add transaction annotation1. Use propagation to specify the propagation behavior of the transaction, that is, when the current transaction method is called by another transaction methodHow to use transactions, the default value is REQUIRED, that is, use the transaction that calls the methodREQUIRES_NEW: The transaction’s own transaction, the transaction of the […]

Leveraging geospatial data in Python with GeoPandas

The true potential of spatial data lies in its ability to connect data points and their respective locations, creating endless possibilities for advanced analytics. Geospatial data science is an emerging field in data science that aims to leverage geospatial information and extract valuable insights through spatial algorithms and advanced techniques such as machine learning or […]

Leveraging geospatial data in Python with GeoPandas

Recommended Use NSDT editor quickly builds 3D application scenes The true potential of spatial data lies in its ability to connect data points and their respective locations, creating endless possibilities for advanced analytics. Geospatial data science is an emerging field in data science that aims to leverage geospatial information and extract valuable insights through spatial […]