A field is an array. If this record does not exist in the array, add a record to the array. FilterDefinitionBuilder<WorkflowDo> fd = Builders<WorkflowDo>.Filter; var f = fd.And(fd.Eq(x => x.Id, record.Id), fd.Not(fd.ElemMatch(x => x.Definitio…

1,一个字段是数组，如果数组中不存在这个记录时，向数组增加一个记录。 FilterDefinitionBuilder<WorkflowDo> fd = Builders<WorkflowDo>.Filter; var f = fd.And(fd.Eq(x => x.Id, record.Id), fd.Not(fd.ElemMatch(x => x.Definition, x => x.Version == newVersionStr))); UpdateDefinitio…

背景： I searched many libraries, but either they charged fees or were too outdated to be used. After extensive testing, I wrote the relevant code for the printer. The implemented code does not rely on third-party libraries. Core Code Import these two libraries: …

背景： 查找了很多库，要么收费，要么太旧用不了。 经过大量测试，写了打印机的相关代码。 实现的代码不依赖于第三方库。 核心代码 引入这两个库： System.Drawing.Printing Vanara.PInvoke.Printing 这两个库用于使用 winspool.drv 服务，可以避免编写大量 库函数调用代码。 首先编写基础代码： public class PrinterBase { /// <summary> /// 获取默认打印机 /// </summary> /// �…

Introduction to goioc goioc is a dependency injection framework written in Go language that is based on reflection. Supports generics; Simple and easy-to-use API; Simplified object lifecycle management, objects have a life within the scope; Lazy loading, objec…

goioc 介绍 goioc 是一个基于 GO 语言编写的依赖注入框架，基于反射进行编写。 支持泛型； 简单易用的 API； 简易版本的对象生命周期管理，作用域内对象具有生命； 延迟加载，在需要的时候才会实例化对象； 支持结构体字段注入，多层注入； 对象实例化线程安全，作用域内只会被执行一次。 下载依赖： go get -u github.com/whuanle/goioc v2.0.0 快速上手 定义接口： type IAnimal interface { Println(s string) } 实现接口： ty…

Background: Unable to open remote settings. Also cannot open gpedit.msc. Repair Command (cmd): @echo off pushd "%~dp0" dir /b C:\Windows\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientExtensions-Package~3*.mum >List.txt dir /b C:\Windows\s…

背景： 打不开远程设置。 也打不开 gpedit.msc。 修复命令(cmd)： @echo off pushd "%~dp0" dir /b C:\Windows\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientExtensions-Package~3*.mum >List.txt dir /b C:\Windows\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientTools-Pack…

WorkflowDefinitionValidator is the main entry point for validation, which has a very complex object structure. Reference: https://github.com/serverlessworkflow/specification/blob/main/specification.md By using dependency injection, the fields of the next layer…

WorkflowDefinitionValidator 是整个验证入口，上一个非常复杂的对象结构。 参考：https://github.com/serverlessworkflow/specification/blob/main/specification.md 通过依赖注入，继续检查下一层的字段。 /// <summary> /// Represents the service used to validate <see cref="WorkflowDefinition"/>s /// &…

The code example is as follows: System.Net.ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true; services.ConfigureAll<HttpClientFactoryOptions>(options => { options.HttpMessag[......]继续阅读

代码示例如下： System.Net.ServicePointManager.ServerCertificateValidationCallback += (sender, certificate, chain, sslPolicyErrors) => true; services.ConfigureAll<HttpClientFactoryOptions>(options => { options.HttpMessageHandlerBuilderActions.A[......]继续阅读

Establishing Link SDK Official Repository Address: https://github.com/open-telemetry/opentelemetry-go Design an execution flow like this: Run executes Run1 and Run2 in sequence: a.Run1(newCtx) a.Run2(newCtx) Inside Run1, another function Run1-1 is also execute…

建立链路 SDK 官方仓库地址： https://github.com/open-telemetry/opentelemetry-go 设计一个这样的执行流程： Run 先后执行 Run1、Run2： a.Run1(newCtx) a.Run2(newCtx) Run1 中，还执行了另一个函数 Run1-1。 使用 opentelemetry SDK 的代码示例如下： package main import ( "context" "go.opentelemetry.io/otel" "io" "log" ) //…

package main import ( "fmt" "os" "os/signal" ) func main() { // Set up channel on which to send signal notifications. // We must use a buffered channel or risk missing the signal // if we're not ready to receive when the signal is…

使用示例： package main import ( "fmt" "os" "os/signal" ) func main() { // Set up channel on which to send signal notifications. // We must use a buffered channel or risk missing the signal // if we're not ready to receive when the signal is sent. c := make(chan os…

Usage Common log methods in Go: Print/Printf/Println : Print log information Panic/Panicf/Panicln : Print log information and call Panic with the formatted string as an argument Fatal/Fatalf/Fatalln : Print log information and exit the program with os.Exit(1) …

使用 Go 中常用的 log 方法: Print/Printf/Println : 打印日志信息 Panic/Panicf/Panicln : 打印日志信息后，以拼装好的字符串为参数调用 Panic Fatal/Fatalf/Fatalln : 打印日志信息后，os.Exit(1) 退出程序 New 一个 Logger 的定义如下： func New(out io.Writer, prefix string, flag int) *Logger { return &Logger{out: out, pref…

首先在要被执行的类型加上参数： [Option(Description = "CloudEvents 'source' (default: urn:example-com:mysource:abc)", LongName = "source", ShortName = "s")] private string Source { get; } = "urn:example-com:mysource:abc"; [Option(Descri…

首先在要被执行的 类型 加上参数： [Option(Description = "CloudEvents 'source' (default: urn:example-com:mysource:abc)", LongName = "source", ShortName = "s")] private string Source { get; } = "urn:example-com:mysource:abc"; [Option(Description = "CloudEvents 'type' (default: …