1. Create custom annotations: @Target({<!– –>ElementType.FIELD, ElementType.PARAMETER}) @Retention(RetentionPolicy.RUNTIME) public @interface EncryptDecrypt {<!– –> } 2. Create an encryption and decryption tool class: public class EncryptionUtils {<!– –> // Encryption method public static String encrypt(String data) {<!– –> // Implement encryption logic // … return encryptedData; } //Decryption method public static String decrypt(String encryptedData) {<!– –> […]
Tag: ipa
Go language multipart library analysis
Introduction This article is a practical part of the previous article. After mastering the basic request format of multipart/form-data in HTTP, now through the official multipart< of Go language /code> library to gain a deeper understanding of how to send and handle requests in the multipart/form-data format Let’s first look at a piece of code […]
Use the intranet penetration tool to conduct remote testing of the SDK interface for payment in the Alipay sandbox environment
Java Alipay sandbox environment payment, SDK interface remote debugging [intranet penetration] 1. Test environment Maven Spring boot Jdk 1.8 2. Local configuration Obtain Alipay payment Java SDK. For maven projects, you can choose the maven version. Ordinary java projects can be downloaded from GitHub. Here we take maven as an example. SDK download address: https://doc.open.alipay.com/docs/doc.htm?treeId=193 […]
Big Data Experiment 3 Data Preprocessing 1-Principal Component Analysis
Purpose of the experiment:Understanding big data ExperimentContent: Conduct principal component analysis on the provided data set – sources of per capita disposable income of rural residents in 2016 – and analyze the results. Code import pandas as pd import numpy as np import matplotlib.pyplot as plt def zhuchengfenfenxi(X_T): # Each dimension of the data that […]
Graph Theory 03-[Unweighted and Undirected]-Depth-first DFS traversal of graphs-path problem/detection cycle/bipartite graph
Article directory 1. Code warehouse 2. Single source path 2.1 Ideas 2.2 Main code 3. All point-pair paths 3.1 Ideas 3.2 Main code 4. Optimization of path problem-end recursion early 4.1 Ideas 4.2 Main code 5. Detection loop 5.1 Ideas 5.2 Main code 6. Bipartite graph 6.1 Ideas 6.2 Main code 6.2.1 Traverse each connected […]
day11-fastdfs and minio managed files, Alipay payment secondary encapsulation, payment related table analysis, order interface, front-end payment function, payment success front desk (configuring routing and Alipay callback address), payment success callback interface (two)
0 fastdfs and minio hosting files 0.1 fastdfs 0.2 minio 1 Alipay payment secondary packaging 1.1 General test 1.2 Secondary packaging 2 Analysis of payment related tables 3 Order interface 4 Front-end payment function 5 Payment success front desk (configure routing and Alipay callback address) 6 Payment success callback interface (two) 0 fastdfs and minio […]
[BP Regression Prediction] Based on principal component analysis combined with BP neural network PCA-BP heating furnace temperature prediction with Matlab code…
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more complete Matlab code and simulation customization content, click Intelligent optimization algorithm […]
[BP Regression Prediction] Based on principal component analysis combined with BP neural network PCA-BP heating furnace temperature prediction with Matlab code
?About the author: A Matlab simulation developer who loves scientific research. He cultivates his mind and improves his technology simultaneously. For cooperation on MATLAB projects, please send a private message. Personal homepage: Matlab Research Studio Personal credo: Investigate things to gain knowledge. For more Matlab complete code and simulation customization content, click Intelligent optimization algorithm […]
Python implements http server to receive mutipart/form-data files Method 2
Python implements http server to receive mutipart/form-data files Method 2 1 Server-side code 2 tests 1 Server-side code The following code has been tested by myself and is valid. It is only suitable for receiving pictures uploaded by the client. Other files have not been tested. The author mainly uses it as a daily self-test […]
springcloud+vue3 implements multipart upload and resumes upload at breakpoints
Background When working on some application-level service platforms, sometimes users need to upload a larger file, but after the upload fails, they need to support uploading from the failed point next time. At this time, endpoint resume and multi-part upload need to be used. s solution. This article introduces a strategy to implement this scenario, […]