C++ is a general-purpose, high-level programming language, and functions are a basic concept in C++. A function is an independent block of code that performs a specific task or completes a specific operation. 2.1 Function definition declaration and call In C++, functions mainly consist of the following elements: 1. Function declaration: A function declaration refers […]
Tag: definition
Asynchronously process CompletableFuture data operations and use DefaultTransactionDefinition to ensure transaction consistency
package *.utils; import lombok.extern.slf4j.Slf4j; import org.springframework.transaction.PlatformTransactionManager; import org.springframework.transaction.TransactionStatus; import java.util.concurrent.CountDownLatch; import java.util.concurrent.atomic.AtomicBoolean; @Slf4j public class ThreadTransationUtil { private final PlatformTransactionManager transactionManager; public ThreadTransationUtil(PlatformTransactionManager transactionManager) { this.transactionManager = transactionManager; } public void threadBlocking(CountDownLatch latch, TransactionStatus status, AtomicBoolean isException) throws InterruptedException { latch.countDown(); log.info(“Start hovering, remaining count: {}”, latch.getCount()); latch.await(); if(isException.get()){ log.info(“Start rollback”); transactionManager.rollback(status); }else{ log.info(“Start submission:{}”,status); […]
Response content encryption and anti-crawling case 1: Obtaining 4K high-definition and uncensored pictures of a certain Jane’s wallpaper
Table of Contents Preface need Destination URL detailed steps 1. Find the data interface 2. Analyze the source of encrypted data 3. Stack backtrace and analyze the function logic 4. Enter the decryption function 5. Generate js encryption logic code 6. Build python code logic Foreword Page flipping and crawling are prohibited. Attacks or distributed […]
JavaScript_Object_Function_Definition and Parameters
<!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <title>Function object</title> <script> /** * Function: function (method) object * 1.Create: * 1.var fun = new Function (formal parameter list, method body); //Forget it * 2.function method name (formal parameter list) { *Method body * } * 3.var method name = function (formal parameter list){ *Method body * […]
JavaScript branch structure, loop structure, and function definition and use, array
JS branch structure if statement Same as java if if…else if…else…if //Case: Determine the length of the input password let pwd = prompt(“Please enter password”); let L = pwd.length; if(L<6){<!– –> alert(“Password is less than six characters”); }else if(L>=6 & amp; & amp; L<16){<!– –> alert(“Password is greater than 6 characters and less than 16 […]
23-24C++ (48)–Character array, structure, strong enumeration, macro definition + strcpy_s(a, “ABC”) + strlen (a) + typedef
1. Character array Although the string type is more convenient in many aspects of processing strings, it is always at a disadvantage compared to char arrays in terms of calculation speed, and there is no string type in the C language. For subsequent data structure and algorithm courses, as well as hardware development courses, you […]
Spark_SQL function definition (define UDF function, use window function)
1. UDF function definition (1) Function definition (2) Spark supports defining functions (3) Define UDF function (4) Define UDF that returns Array type (5) Define UDF that returns dictionary type 2. Window function (1) Brief description of windowing function (2) Syntax of window function 1. UDF function definition (1) Function definition Whether Hive or SparkSQL […]
Aocoda-RC F405V2 FC(STM32F405RGT6 v.s. AT32F435RGT7) IO Definitions
@[TOC](Aocoda-RC F405V2 FC(STM32F405RGT6 v.s. AT32F435RGT7) IO Definitions) 1. Origin Aocoda-RC F405V2 flight controller supports betaflight/inav/Ardupilot firmware and is an open source hardware with very good firmware compatibility. We have compared STM32F405RGT6 vs. AT32F435RGT7 Comparison for Flight Controller before. Overall comparison: Significant improvement in performance The pin definitions are basically the same Capacity supports up to […]
BeanDefinitionStoreException: Failed to read candidate component class
BeanDefinitionStoreException: Failed to read candidate component class Caused by: org.springframework.core.annotation.AnnotationConfigurationException: @AliasFor declaration on attribute [proxyBeanMethods] in annotation [org.springframework.boot.SpringBootConfiguration] is missing required ‘attribute’ value. org.springframework.beans.factory.BeanDefinitionStoreException: Failed to read candidate component class: URL [jar:file:/home/work/project/WEB-INF/lib/compass-sdk-0.0.5-SNAPSHOT.jar!/com /baidu/bpitsns/compass/CompassSdkApplication.class]; nested exception is org.springframework.core.annotation.AnnotationConfigurationException: @AliasFor declaration on attribute [proxyBeanMethods] in annotation [org.springframework.boot.SpringBootConfiguration] is missing required ‘attribute’ value. at org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider.findCandidateComponents(ClassPathScanningCandidateComponentProvider.java:303) ~[spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE] at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:248) […]
springframework.beans.factory.NoSuchBeanDefinitionException:No qualifying bean of type x available
Article directory 1. Reproducing the error 2. Analysis errors 3. Solve the problem 3.1 Solution 1 3.2 Solution 2 4. Analyze the dynamic proxy of jdk and cglib in spring 4.1 Dynamic proxy comparison 4.2 Differences in principles 4.3 Performance differences 4.4 Respective limitations 4.5 The essential difference between static agents and dynamic agents 1. […]