var – Page 3 – SyntaxBug

Various ways to send http requests in java

Native java sends http request package com.cyz; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.URL; import java.net.URLConnection; import java.util.List; import java.util.Map; /** * @author cyz * @since 2023/11/8 9:50 */ public class CustHttp { public static String post(String targetUrl, String params) throws IOException { URL url = new URL(targetUrl); PrintWriter out = null; […]

You will understand the various implementations of distributed locks after reading this article!

Foreword Total number of words: 1W + ? Reading time: 15min Keywords: distributed lock, Redis, Etcd, ZooKeeper Today we are going to talk about distributed locks. There is a lot of related content on the Internet, but it is relatively scattered. I just finished learning and summarized it and shared it with everyone. The article […]

2023/11/7–C#–The difference between generics and Object types, generic constraints, ArrayList variable array, Dictionary dictionary class in C#….

1. Use of generics Generics is a programming concept that allows you to write code that can handle non-specific data types, thereby improving code reusability and type safety. Generics allow you to write common algorithms, data structures, and methods to adapt to a variety of different data types without having to write specific code for […]

[GEE] 6. Construct various remote sensing indices in Google Earth Engine

1Introduction In this module we will discuss the following concepts: How to rename bands of an image in GEE. How to use existing remote sensing indices. How to use band math to generate your own remote sensing index. Satellite image of the number of years a field has been irrigated. The most likely source of […]

Regression prediction | Optimizing variational mode decomposition based on Sparrow algorithm combined with long short-term memory network SSA-VMD-LSTM to achieve photovoltaic power generation power 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 code acquisition, paper reproduction and scientific research simulation cooperation, 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 […]

[Photovoltaic prediction] Optimizing variational mode decomposition based on Sparrow algorithm combined with long short-term memory network SSA-VMD-LSTM to realize photovoltaic power generation power prediction with Matlab code

[Signal Denoising] Optimizing variational mode decomposition SCSSA-VMD based on fused sine-cosine and Cauchy mutation sparrow algorithm to achieve signal denoising with Matlab code

[Various modules of python] (2) Use xlrd and xlwt to operate Excel in python

Table of Contents 1 What are xlrd and xlwt 2 Import xlwt 3 xlwt related syntax 3.1 Create a new workbook 3.2 Create a new sheet 3.3 Save workbook 4 Form of table in python 4.1 Matrix 4.2 The data form of EXCEL == is completely equal to the numerical structure of the matrix 4.3 […]

Nginx (05)-http working mechanism, configuration instructions and built-in variables

The http service is the most original service of Nginx. Understanding its working mechanism is very helpful to understand how nginx works. The core module of Nginx is ngx_http_core_module. Table of Contents http working mechanism Configuration structure Working Mechanism http common commands http server listen server_name location priority Special usage of “/” root/alias/index root alias […]

Use the Postman tool for interface testing – environment variables and request parameter formats!

Introduction In the previous note, we mainly introduced the basic knowledge and basic functions of interface testing. This chapter mainly introduces how to use postman for interface testing. Configure environment variables and global variables Environment variables and global variables In environment management, you can also click “Global” to add global variables. Environment variables only take […]