### Multi-Database Transaction Setup

Source: https://rightpolice.github.io/Furion-Documentation/docs/sqlsugar

Configure and manage transactions across multiple databases using SqlSugarClient. This example shows how to get connections for different databases and execute commands within a transaction block.

```csharp
SqlSugarClient db = new SqlSugarClient(new List<ConnectionConfig>()  
{
    new ConnectionConfig(){ ConfigId="0", DbType=DbType.SqlServer,  ConnectionString=Config.ConnectionString, IsAutoCloseConnection=true },  
    new ConnectionConfig(){ ConfigId="1", DbType=DbType.MySql, ConnectionString=Config.ConnectionString4 ,IsAutoCloseConnection=true}
});  

var mysqldb = db.GetConnection("1"); // mysql db  
var sqlServerdb = db.GetConnection("0"); // sqlserver db  

db.BeginTran();  

mysqldb.Insertable(new Order()  
{
    CreateTime = DateTime.Now,  
    CustomId = 1,  
    Name = "a",  
    Price = 1  
}).ExecuteCommand();  
mysqldb.Queryable<Order>().ToList();  
sqlServerdb.Queryable<Order>().ToList();  

db.CommitTran();  
```

--------------------------------

### Grouping Query Examples

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

Provides examples of grouping data using LINQ. The first example groups by multiple columns, the second groups and counts results, and the third involves joins before grouping.

```csharp
// 示例一  
var query = repository.AsQueryable().GroupBy(x => new { x.Column1, x.Column2 });  

```

```csharp
// 示例二  
var query = from student in repository.AsQueryable()  
            group student by repository2.AsQueryable() into dateGroup  
            select new ResultData()  
            {  
                Key = dateGroup.Key,  
                Value = dateGroup.Count()  
            };  

```

```csharp
// 示例三  
var query = from a in repository.AsQueryable()  
            join b in repository2.AsQueryable() on a.Id equals b.Aid  
            join c in repository3.AsQueryable() on c.id equals b.Bid  
            group a by new { a.Age, b.Sex } into g  
            select new {  
                Peo = g.Key,  
                Count = g.Count()  
            };  

```

--------------------------------

### Install CliWrap

Source: https://rightpolice.github.io/Furion-Documentation/docs/dotnet-tools

Install the CliWrap NuGet package to enable the execution of local commands from your .NET application.

```bash
dotnet add package CliWrap  

```

--------------------------------

### Vue 3 SignalR Client Example

Source: https://rightpolice.github.io/Furion-Documentation/docs/signalr

This example demonstrates setting up a SignalR connection in a Vue 3 application. It includes initializing the HubConnection, starting the connection, sending a message, and registering a handler for receiving messages from the server.

```typescript
import { HubConnectionBuilder } from "@microsoft/signalr";  
  
<script setup lang="ts">  
    import { HubConnectionBuilder } from "@microsoft/signalr";  
    import { ref } from "vue";  
  
    const messages = ref('');  
    const reciveMessage = (msg: string) => {  
        console.log("msg", msg);  
    }  
  
    //初始化signalr HubConnection对象  
    const connection = new HubConnectionBuilder()  
        .withUrl("<你的signalr连接地址>")//https://localhost:7260/chatHub  
        .build();  
  
    //启动连接并发送消息测试  
    connection.start()  
              .then(() => connection.send("SendMessage", "Hello"));  
  
    //注册web端方法以供后端调用  
    connection.on("ReciveMessage", reciveMessage);  
  
    const sendMsg = async () => {  
        console.log(messages.value);  
        await connection.send("SendMessage", messages.value).catch(function (err) {  
            console.log(err);  
        });  
    }  
</script>  

```

--------------------------------

### Install My.Extensions.Localization.Json Package

Source: https://rightpolice.github.io/Furion-Documentation/docs/local-language

Add the My.Extensions.Localization.Json NuGet package to your project to enable JSON-based localization.

```bash
dotnet add package My.Extensions.Localization.Json

```

--------------------------------

### Minimal API Application Setup with Furion

Source: https://rightpolice.github.io/Furion-Documentation/docs/upgrade

Shows how to integrate Furion into a Minimal API application by registering services with AddInjectMini() and using UseInject().

```csharp
var builder = WebApplication.CreateBuilder(args).Inject();

// Register Minimal services
builder.Services.AddInjectMini();

var app = builder.Build();

app.UseHttpsRedirection();

app.UseInject(string.Empty);

app.MapGet("/hello", () =>
{
    return "Hello, Furion";
});

app.Run();
```

--------------------------------

### Set Default Example Value for API Parameters

Source: https://rightpolice.github.io/Furion-Documentation/docs/specification-document

Customize the default 'Example Value' for API input parameters by adding XML comments with the <example> tag. This provides more meaningful default data in Swagger UI.

```csharp
/// <summary>
/// 年龄
/// </summary>
/// <example>13</example>
[Required, Range(10, 110)]
public int Age { get; set; }
```

--------------------------------

### JSON Schema Configuration Example

Source: https://rightpolice.github.io/Furion-Documentation/docs/upgrade

Example of a Furion application's JSON configuration file with the $schema property pointing to the Furion JSON Schema for intelligent tips and validation.

```json
{
  "$schema": "https://gitee.com/dotnetchina/Furion/raw/v4/schemas/v4/furion-schema.json",

  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information",
      "Microsoft.EntityFrameworkCore": "Information"
    }
  },
  "AllowedHosts": "*"
}
```

--------------------------------

### JobDetail Monitor Output Example

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

This example displays the formatted output for a `JobDetail` object when converted to its monitor string representation. It includes details like job name, type, assembly, and timestamps.

```text
info: 2022-12-02 18:04:06.2833095 +08:00 星期五 L MyJob[0] #8  
      ┏━━━━━━━━━━━  JobDetail ━━━━━━━━━━━  
      ┣ MyJob  
      ┣  
      ┣ jobId：                     job1  
      ┣ groupName：  
      ┣ jobType：                   MyJob  
      ┣ assemblyName：              ConsoleApp32  
      ┣ description：  
      ┣ concurrent：                True  
      ┣ includeAnnotations：        False  
      ┣ properties：                {}  
      ┣ updatedTime：               2022-12-02 18:04:06.254  
      ┗━━━━━━━━━━━  JobDetail ━━━━━━━━━━━  
```

--------------------------------

### Basic Repository Query

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

A simple example of querying entities from a repository. This snippet demonstrates a basic filtering operation.

```csharp
var posts = repository.Where(u => u.Id > 10).ToList();  
```

--------------------------------

### Trigger Monitor Output Example

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

This example shows the formatted output for a trigger object when converted to its monitor string representation. It details trigger type, associated job, schedule parameters, and execution status.

```text
info: 2022-12-02 18:04:06.2868205 +08:00 星期五 L MyJob[0] #8  
      ┏━━━━━━━━━━━  Trigger ━━━━━━━━━━━  
      ┣ Furion.Schedule.PeriodSecondsTrigger  
      ┣  
      ┣ triggerId：                job1_trigger1  
      ┣ jobId：                    job1  
      ┣ triggerType：              Furion.Schedule.PeriodSecondsTrigger  
      ┣ assemblyName：             Furion  
      ┣ args：                     [5]  
      ┣ description：  
      ┣ status：                   Running  
      ┣ startTime：  
      ┣ endTime：  
      ┣ lastRunTime：              2022-12-02 18:04:06.189  
      ┣ nextRunTime：              2022-12-02 18:04:11.212  
      ┣ numberOfRuns：             1  
      ┣ maxNumberOfRuns：          0  
      ┣ numberOfErrors：           0  
      ┣ maxNumberOfErrors：        0  
      ┣ numRetries：               0  
      ┣ retryTimeout：             1000  
      ┣ startNow：                 True  
      ┣ runOnStart：               False  
      ┣ resetOnlyOnce：            True  
      ┣ result：  
      ┣ elapsedTime：              100  
      ┣ updatedTime：              2022-12-02 18:04:06.254  
      ┗━━━━━━━━━━━  Trigger ━━━━━━━━━━━  
```

--------------------------------

### Install Spectre.Console.Cli

Source: https://rightpolice.github.io/Furion-Documentation/docs/dotnet-tools

Install the Spectre.Console.Cli NuGet package to add advanced console UI components to your .NET project.

```bash
dotnet add package Spectre.Console.Cli  

```

--------------------------------

### Dynamic SQL Queries with System.Linq.Dynamic.Core

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

Shows how to use dynamic SQL queries with Furion by installing and utilizing the System.Linq.Dynamic.Core library. Supports string-based WHERE, ORDERBY, and SELECT clauses.

```csharp
// 示例一
var query = repository.AsQueryable()
                      .Where("City == @0 and Orders.Count >= @1", "China", 10)
                      .OrderBy("CompanyName")
                      .Select("new(CompanyName as Name, Phone)");

// 示例二
var list = repository.AsQueryable()
                     .Where("Name.Contains(@0)","Furion")
                     .ToList();

// 示例三，支持 ? 语法
var customers = repository.AsQueryable()
                          .Include(c => c.Location)
                          .Where(c => c.Location?.Name == "test") // 注意 Location?.Name
                          .ToList();
```

--------------------------------

### Console Logging Output Example

Source: https://rightpolice.github.io/Furion-Documentation/docs/logging

Demonstrates the default console output format for logs in ASP.NET Core applications. The ConsoleLoggerProvider is registered by default.

```log
info: Furion.EventBus.EventBusHostedService[0]  
      EventBus Hosted Service is running.  
info: Microsoft.Hosting.Lifetime[14]  
      Now listening on: https://localhost:5001  
info: Microsoft.Hosting.Lifetime[14]  
      Now listening on: http://localhost:5000  
info: Microsoft.Hosting.Lifetime[0]  
      Application started. Press Ctrl+C to shut down.  
info: Microsoft.Hosting.Lifetime[0]  
      Hosting environment: Development  
info: Microsoft.Hosting.Lifetime[0]  
      Content root path: C:\Workplaces\Furion\samples\Furion.Web.Entry\  

```

--------------------------------

### Bulk Insert and Update with SqlSugar

Source: https://rightpolice.github.io/Furion-Documentation/docs/sqlsugar

Demonstrates efficient bulk insertion and updating of a million records. Includes examples for updating without a primary key and setting a specific table name or page size.

```csharp
//Insert A million only takes a few seconds  
db.Fastest<RealmAuctionDatum>().BulkCopy(GetList());  
  
//update A million only takes a few seconds  
db.Fastest<RealmAuctionDatum>().BulkUpdate(GetList());//A million only takes a few seconds完  
db.Fastest<RealmAuctionDatum>().BulkUpdate(GetList(),new string[]{"id"},new string[]{"name","time"})//no primary key  
  
//if exists update, else  insert  
 var x= db.Storageable<Order>(data).ToStorage();  
     x.BulkCopy();  
     x.BulkUpdate();  
  
//set table name  
db.Fastest<RealmAuctionDatum>().AS("tableName").BulkCopy(GetList())  
  
//set page  
db.Fastest<Order>().PageSize(300000).BulkCopy(insertObjs);  


```

--------------------------------

### Custom Job Implementation

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

Example of a custom job class that logs execution context. It requires an ILogger for logging.

```csharp
private readonly ILogger<MyJob> _logger;
public MyJob(ILogger<MyJob> logger)
{
    _logger = logger;
}

public async Task ExecuteAsync(JobExecutingContext context, CancellationToken stoppingToken)
{
    _logger.LogInformation($"{context}");
    await Task.CompletedTask;
}
```

--------------------------------

### LoggingMonitor Audit Log Output Example

Source: https://rightpolice.github.io/Furion-Documentation/docs/audit

An example of the detailed audit log output generated by Furion's LoggingMonitor, including request details, authorization information, parameters, and return information.

```text
┏━━━━━━━━━━━  Logging Monitor ━━━━━━━━━━━  
┣ Furion.Application.TestLoggerServices.GetPerson (Furion.Application)  
┣  
┣ 控制器名称：              TestLoggerServices  
┣ 操作名称：                GetPerson  
┣ 路由信息：                [area]: ; [controller]: test-logger; [action]: person  
┣ 请求方式：                POST  
┣ 请求地址：                https://localhost:44316/api/test-logger/person/11  
┣ 来源地址：                https://localhost:44316/api/index.html  
┣ 浏览器标识：              Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62  
┣ 客户端 IP 地址：          0.0.0.1  
┣ 服务端 IP 地址：          0.0.0.1  
┣ 服务端运行环境：          Development  
┣ 执行耗时：                31ms  
┣ ━━━━━━━━━━━━━━━  授权信息 ━━━━━━━━━━━━━━━  
┣ JWT Token：               Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJVc2VySWQiOjEsIkFjY291bnQiOiJhZG1pbiIsImlhdCI6MTY1ODcxNjc5NywibmJmIjoxNjU4NzE2Nzk3LCJleHAiOjE2NTg3MTc5OTcsImlzcyI6ImRvdG5ldGNoaW5hIiwiYXVkIjoicG93ZXJieSBGdXJpb24ifQ.VYZkwwqCwlUy3aJjuL-og62I0rkxNQ96kSjEm3VgXtg  
┣  
┣ UserId (integer)：        1  
┣ Account (string)：        admin  
┣ iat (integer)：           1658716797  
┣ nbf (integer)：           1658716797  
┣ exp (integer)：           1658717997  
┣ iss (string)：            dotnetchina  
┣ aud (string)：            powerby Furion  
┣ ━━━━━━━━━━━━━━━  参数列表 ━━━━━━━━━━━━━━━  
┣ Content-Type：  
┣  
┣ id (Int32)：              11  
┣ ━━━━━━━━━━━━━━━  返回信息 ━━━━━━━━━━━━━━━  
┣ 类型：                    Furion.Application.Persons.PersonDto  
┣ 返回值：                  {"Id":11,"Name":null,"Age":0,"Address":null,"PhoneNumber":null,"QQ":null,"CreatedTime":"0001-01-01T00:00:00+00:00","Childrens":null,"Posts":null}  
┗━━━━━━━━━━━  Logging Monitor ━━━━━━━━━━━  
```

--------------------------------

### Install SignalR TypeScript Client

Source: https://rightpolice.github.io/Furion-Documentation/docs/signalr

Install the Microsoft SignalR TypeScript client package to enable communication with your SignalR server. This package is essential for invoking server methods like SendMessage.

```bash
npm i @microsoft/signalr @types/node  

```

--------------------------------

### Using IDistributedCache Interface

Source: https://rightpolice.github.io/Furion-Documentation/docs/cache

Demonstrates how to inject and use the `IDistributedCache` interface for getting and setting cached data. Includes setting sliding expiration.

```csharp
public class IndexModel : PageModel  
{
    private readonly IDistributedCache _cache;

    public IndexModel(IDistributedCache cache)
    {
        _cache = cache;
    }

    public string CachedTimeUTC { get; set; }

    public async Task OnGetAsync()
    {
        CachedTimeUTC = "Cached Time Expired";
        // Get distributed cache
        var encodedCachedTimeUTC = await _cache.GetAsync("cachedTimeUTC");

        if (encodedCachedTimeUTC != null)
        {
            CachedTimeUTC = Encoding.UTF8.GetString(encodedCachedTimeUTC);
        }
    }

    public async Task<IActionResult> OnPostResetCachedTime()
    {
        var currentTimeUTC = DateTime.UtcNow.ToString();
        byte[] encodedCurrentTimeUTC = Encoding.UTF8.GetBytes(currentTimeUTC);

        // Set distributed cache
        var options = new DistributedCacheEntryOptions()
            .SetSlidingExpiration(TimeSpan.FromSeconds(20));

        await _cache.SetAsync("cachedTimeUTC", encodedCurrentTimeUTC, options);

        return RedirectToPage();
    }
}

```

--------------------------------

### Implement Serial Task Execution

Source: https://rightpolice.github.io/Furion-Documentation/docs/process-service

Shows how to modify the `BackgroundService` to execute tasks serially, ensuring one task completes before the next one starts, by using a lock mechanism.

```csharp
using Furion.TimeCrontab;  
  
namespace WorkerService;  
  
public class Worker : BackgroundService  
{  
    private readonly ILogger<Worker> _logger;  
  
    private readonly Crontab _crontab;  
  
    private bool _isLock = false;  
  
    public Worker(ILogger<Worker> logger)  
    {  
        _logger = logger;  
        _crontab = Crontab.Parse("* * * * * *", CronStringFormat.WithSeconds);  
    }  
  
    protected override async Task ExecuteAsync(CancellationToken stoppingToken)  
    {  
        while (!stoppingToken.IsCancellationRequested)  
        {  
            if (_isLock) goto next;  
            _isLock = true;  
  
            var taskFactory = new TaskFactory(System.Threading.Tasks.TaskScheduler.Current);  
            var task = await taskFactory.StartNew(async () =>  
            {  
                // 模拟耗时操作  
                await Task.Delay(2000);  
  
                _logger.LogInformation("Worker running at: {time}", DateTime.Now);  
  
                await Task.CompletedTask;  
            }, stoppingToken);  
  
            // 等待任务完成  
            await task.ContinueWith(task => _isLock = false);  
  
        next:  
            await Task.Delay(_crontab.GetSleepTimeSpan(DateTime.Now), stoppingToken);  
        }  
    }  
}  


```

--------------------------------

### Job Trigger Configuration with Attributes

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

Example of configuring a job trigger using attributes, specifying interval and description. Ensure the job class implements IJob.

```csharp
[PeriodSeconds(5, TriggerId = "trigger1", Description = "这是一段描述")]  
public class MyJob : IJob  
{
      // ...  
}
```

--------------------------------

### Getting DbContext using the Db Static Class

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext

Illustrates various methods provided by the `Db` static class to obtain DbContext instances, including default, locator-based, and new instances. Remember to use `using` for newly created contexts and pass `serviceProvider` for background threads.

```csharp
// 获取默认数据库上下文  
var dbContext = Db.GetDbContext();  

// 获取定位器数据库上下文  
var locatorDbContext = Db.GetDbContext<TDbContextLocator>();  
var locatorDbContext2 = Db.GetDbContext(typeof(TDbContextLocator));  

// 创建新的默认数据库上下文（相当于 new YourDbContext）  
using var dbContext = Db.GetNewDbContext(); // 别忘记 using，Furion 4.8.8.55+ 版本有效  

// 创建新的定位器数据库上下文（相当于 new YourDbContext）  
using var locatorDbContext = Db.GetNewDbContext<TDbContextLocator>(); // 别忘记 using，Furion 4.8.8.55+ 版本有效  
using var locatorDbContext2 = Db.GetNewDbContext(typeof(TDbContextLocator)); // 别忘记 using，Furion 4.8.8.55+ 版本有效  

```

--------------------------------

### Mixed Order Query

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

Demonstrates how to apply a mix of ascending and descending order clauses in a single query. This example sorts by ID ascending, then by Name descending, and finally by Age ascending.

```csharp
// 示例一  
var query = repository.AsQueryable()  
                      .OrderBy(u => u.Id)  
                      .OrderByDescending(u => u.Name)  
                      .ThenBy(u => u.Age);  

```

--------------------------------

### Stored Procedure Definition with Input, Output, and Return Parameters

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-proc

Example SQL script defining a stored procedure that accepts an input parameter, provides output parameters, returns a value, and outputs result sets.

```sql
CREATE PROC PROC_Output  
    @Id INT,    // 输入参数  
    @Name NVARCHAR(32) OUTPUT,  // 输出参数，还带长度  
    @Age INT OUTPUT // 输出参数  
AS  
BEGIN  
    SET @Name = 'Furion Output';  
  
    // 输出结果集  
    SELECT *  
    FROM dbo.Test  
    WHERE Id > @Id;  
  
    // 输出结果集  
    SELECT TOP 10  
           *  
    FROM dbo.Test;  
  
    SET @Age = 27;  
  
    // 带 RETURN 返回  
    RETURN 10;  
END;  
```

--------------------------------

### Job Execution Log Output

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

Example log output demonstrating the execution of a job and the custom job monitor's logging for pre-execution, post-execution, and exception handling.

```log
info: 2022-12-05 14:09:47.2337395 +08:00 星期一 L System.Logging.ScheduleService[0] #1  
      Schedule hosted service is running.  
info: 2022-12-05 14:09:47.2401561 +08:00 星期一 L System.Logging.ScheduleService[0] #1  
      Schedule hosted service is preloading...  
info: 2022-12-05 14:09:47.2780446 +08:00 星期一 L System.Logging.ScheduleService[0] #1  
      The <job1_trigger1> trigger for scheduler of <job1> successfully appended to the schedule.  
info: 2022-12-05 14:09:47.2810119 +08:00 星期一 L System.Logging.ScheduleService[0] #1  
      The scheduler of <job1> successfully appended to the schedule.  
warn: 2022-12-05 14:09:47.2941716 +08:00 星期一 L System.Logging.ScheduleService[0] #1  
      Schedule hosted service preload completed, and a total of <1> schedulers are appended.  
info: 2022-12-05 14:09:52.3190129 +08:00 星期一 L ConsoleApp32.YourJobMonitor[0] #4  
      执行之前：<job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 14:09:52.241 -> 2022-12-05 14:09:57.260  
info: 2022-12-05 14:09:52.3240208 +08:00 星期一 L MyJob[0] #4  
      <job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 14:09:52.241 -> 2022-12-05 14:09:57.260  
fail: 2022-12-05 14:09:52.5253398 +08:00 星期一 L System.Logging.ScheduleService[0] #4  
      Error occurred executing <job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 14:09:52.241 -> 2022-12-05 14:09:57.260.  
      ++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
      System.Exception: 模拟出错  
         at MyJob.ExecuteAsync(JobExecutingContext context, CancellationToken stoppingToken) in D:\Workplaces\Study\CSharp\ConsoleApp32\ConsoleApp32\Program.cs:line 28  
         at Furion.Schedule.ScheduleHostedService.<>c__DisplayClass23_3.<<BackgroundProcessing>b__3>d.MoveNext() in D:\Workplaces\OpenSources\Furion\framework\Furion\Schedule\HostedServices\ScheduleHostedService.cs:line 220  
      --- End of stack trace from previous location ---  
         at Furion.FriendlyException.Retry.InvokeAsync(Func`1 action, Int32 numRetries, Int32 retryTimeout, Boolean finalThrow, Type[] exceptionTypes, Func`2 fallbackPolicy, Action`2 retryAction) in D:\Workplaces\OpenSources\Furion\framework\Furion\FriendlyException\Retry.cs:line 87  
         at Furion.Schedule.ScheduleHostedService.<>c__DisplayClass23_2.<<BackgroundProcessing>b__2>d.MoveNext() in D:\Workplaces\OpenSources\Furion\framework\Furion\Schedule\HostedServices\ScheduleHostedService.cs:line 218  
      ++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
info: 2022-12-05 14:09:52.5288429 +08:00 星期一 L ConsoleApp32.YourJobMonitor[0] #4  
      执行之后：<job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 14:09:52.241 -> 2022-12-05 14:09:57.260  
fail: 2022-12-05 14:09:52.5318526 +08:00 星期一 L ConsoleApp32.YourJobMonitor[0] #4  
      执行出错啦：<job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 14:09:52.241 -> 2022-12-05 14:09:57.260  
      ++++++++++++++++++++++++++++++++++++++++++++++++++++++++  
      System.InvalidOperationException: Error occurred executing <job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 14:09:52.241 -> 2022-12-05 14:09:57.260.  
       ---> System.Exception: 模拟出错  
         at MyJob.ExecuteAsync(JobExecutingContext context, CancellationToken stoppingToken) in D:\Workplaces\Study\CSharp\ConsoleApp32\ConsoleApp32\Program.cs:line 28  
         at Furion.Schedule.ScheduleHostedService.<>c__DisplayClass23_3.<<BackgroundProcessing>b__3>d.MoveNext() in D:\Workplaces\OpenSources\Furion\framework\Furion\Schedule\HostedServices\ScheduleHostedService.cs:line 220  
      --- End of stack trace from previous location ---  
         at Furion.FriendlyException.Retry.InvokeAsync(Func`1 action, Int32 numRetries, Int32 retryTimeout, Boolean finalThrow, Type[] exceptionTypes, Func`2 fallbackPolicy, Action`2 retryAction) in D:\Workplaces\OpenSources\Furion\framework\Furion\FriendlyException\Retry.cs:line 87  
```

--------------------------------

### Ascending Order Query

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

Shows how to sort query results in ascending order. The first example sorts by a single column, and the second demonstrates secondary sorting using ThenBy.

```csharp
// 示例一  
var query = repository.AsQueryable()  
                      .OrderBy(u => u.Id);  

```

```csharp
// 示例二  
var query =repository.AsQueryable()  
                     .OrderBy(u => u.Id)  
                     .ThenBy(u => u.Name);  

```

--------------------------------

### SQL Proxy: Fetch Tuple with Person and List of Persons

Source: https://rightpolice.github.io/Furion-Documentation/docs/upgrade

Example showing the SQL proxy's ability to return a ValueTuple containing a single 'Person' object and a list of 'Person' objects from multiple SQL statements.

```csharp
public interface ISql : ISqlDispatchProxy
{
    [SqlExecute(@"
            select * from person where id =@id;
            select * from person")]
    (Person, List<Person>) GetData(int id); // Return value is a combination of (Person, List<Person>)
}
```

--------------------------------

### Configuring Lazy Loading for DbContext

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext

Shows how to configure lazy loading for entities by installing the EFCore Proxies package, registering the DbContext with `AddDb<TDbContext>`, and overriding the `OnConfiguring` method to use `UseLazyLoadingProxies()`.

```csharp
using Furion.DatabaseAccessor;
using Microsoft.EntityFrameworkCore;

namespace Furion.EntityFramework.Core
{
    [AppDbContext("Sqlite3ConnectionString", DbProvider.Sqlite)]
    public class DefaultDbContext : AppDbContext<DefaultDbContext>
    {
        public DefaultDbContext(DbContextOptions<DefaultDbContext> options) : base(options)
        {
        }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            optionsBuilder.UseLazyLoadingProxies()
                          .UseSqlite(DbProvider.GetConnectionString<DefaultDbContext>());

            base.OnConfiguring(optionsBuilder);
        }
    }
}

```

--------------------------------

### Global Log Filtering in .NET 6+

Source: https://rightpolice.github.io/Furion-Documentation/docs/logging

Provides examples of implementing global log filtering in .NET 6 and later versions using WebApplicationBuilder. This method allows for centralized control over log output.

```csharp
var builder = WebApplication.CreateBuilder(args);

builder.Logging.AddFilter((provider, category, logLevel) =>
{
    return !new[] { "Microsoft.Hosting", "Microsoft.AspNetCore" }.Any(u => category.StartsWith(u))
        && logLevel >= LogLevel.Information;
});
```

```csharp
Serve.Run(RunOptions.Default.AddWebComponent<WebComponent>());

public class WebComponent : IWebComponent
{
    public void Load(WebApplicationBuilder builder, ComponentContext componentContext)
    {
        builder.Logging.AddFilter((provider, category, logLevel) =>
        {
            return !new[] { "Microsoft.Hosting", "Microsoft.AspNetCore" }.Any(u => category.StartsWith(u))
                && logLevel >= LogLevel.Information;
        });
    }
}
```

--------------------------------

### SignalR Hub Configuration in Startup.cs

Source: https://rightpolice.github.io/Furion-Documentation/docs/signalr

Equivalent configuration for SignalR Hubs in the Startup.cs file using app.UseEndpoints.

```csharp
app.UseEndpoints(endpoints =>
{
    var builder = endpoints.MapHub<ChatHub>("/hubs/chathub", options =>
       {
           // Configuration
       });
});
```

--------------------------------

### Configure Database Logging with Default Settings

Source: https://rightpolice.github.io/Furion-Documentation/docs/logging

Basic configuration for adding database logging using a custom writer with default settings.

```csharp
// Example 1, default configuration
services.AddDatabaseLogging<DatabaseLoggingWriter>(options => {});
```

--------------------------------

### Configure Hub Registration Options

Source: https://rightpolice.github.io/Furion-Documentation/docs/signalr

Configure additional parameters like permissions and cross-origin settings when registering a Hub by implementing static methods within the Hub class.

```csharp
using Furion.InstantMessaging;
using Microsoft.AspNetCore.SignalR;
using System;
using System.Threading.Tasks;

namespace Furion.Core
{
    [MapHub("/hubs/chathub")]
    public class ChatHub : Hub
    {
        // Other code

        public static void HttpConnectionDispatcherOptionsSettings(HttpConnectionDispatcherOptions options)
        {
            // Configuration
        }

        public static void HubEndpointConventionBuilderSettings(HubEndpointConventionBuilder Builder)
        {
            // Configuration
        }
    }
}
```

--------------------------------

### Get Hub Instance via IHubContext Injection

Source: https://rightpolice.github.io/Furion-Documentation/docs/signalr

Obtain an instance of IHubContext by injecting it into a controller or service. This is the default singleton registration.

```csharp
public class HomeController : Controller
{
    private readonly IHubContext<NotificationHub> _hubContext;

    public HomeController(IHubContext<NotificationHub> hubContext)
    {
        _hubContext = hubContext;
    }

    public async Task<IActionResult> Index()
    {
        await _hubContext.Clients.All.SendAsync("Notify", $"Home page loaded at: {DateTime.Now}");
        return View();
    }
}
```

--------------------------------

### Repository CRUD and Query Operations

Source: https://rightpolice.github.io/Furion-Documentation/docs/sqlsugar

Demonstrates various repository methods for querying (GetById, GetSingle, GetFirst, GetList, GetPageList), inserting (Insert, InsertRange, InsertReturnIdentity), deleting (Delete, DeleteById, DeleteByIds), and updating (Update, UpdateRange).

```csharp
//查询  
var data1 = base.GetById(1);//根据id查询  
var data4 = base.GetSingle(it => it.Id == 1);//查询单条记录，结果集不能超过1，不然会提示错误  
var data = base.GetFirst(it => it.Id == 1);//查询第一条记录  

var data2 = base.GetList();//查询所有  
var data3 = base.GetList(it => it.Id == 1); //根据条件查询  

var p = new PageModel() { PageIndex = 1, PageSize = 2 };  
var data5 = base.GetPageList(it => it.Name == "xx", p);  
Console.Write(p.PageCount);  

var data6 = base.GetPageList(it => it.Name == "xx", p, it => it.Name, OrderByType.Asc);  
Console.Write(p.PageCount);  

List<IConditionalModel> conModels = new List<IConditionalModel>();  
conModels.Add(new ConditionalModel(){FieldName="id",ConditionalType=ConditionalType.Equal,FieldValue="1"});//id=1  
var data7 = base.GetPageList(conModels, p, it => it.Name, OrderByType.Asc);  
base.AsQueryable().Where(x => x.Id == 1).ToList();  

//插入  
base.Insert(insertObj);  
base.InsertRange(InsertObjs);  
var id = base.InsertReturnIdentity(insertObj);  
base.AsInsertable(insertObj).ExecuteCommand();  

//删除  
base.Delete(insertObj);  
base.DeleteById(1);  
base.DeleteByIds(new object [] { 1, 2 }); //数组带是 ids方法 ，封装传 object [] 类型  
base.Delete(it => it.Id == 1);  
base.AsDeleteable().Where(it => it.Id == 1).ExecuteCommand();  

//更新  
base.Update(insertObj);  
base.UpdateRange(InsertObjs);  
base.Update(it => new Order() { Name = "a", }, it => it.Id == 1);  
base.AsUpdateable(insertObj).UpdateColumns(it=>new { it.Name }).ExecuteCommand();  

//高级操作  
base.AsSugarClient // 获取完整的db对象  
base.AsTenant  // 获取多库相关操作  

//切换仓储  
base.ChangeRepository<Repository<OrderItem>>() //支持多租户和扩展方法，使用SqlSugarScope单例（或者SqlSugarClient Scope注入）  
base.Change<OrderItem>()//只支持自带方法和单库  
```

--------------------------------

### Add WebView2 Package

Source: https://rightpolice.github.io/Furion-Documentation/docs/bs-to-cs

Command to add the Microsoft.Web.WebView2 package to your project. Avoid version 1.0.1722.32 due to known issues.

```bash
dotnet add package Microsoft.Web.WebView2
```

--------------------------------

### SQL Proxy: Fetch Single Person by ID

Source: https://rightpolice.github.io/Furion-Documentation/docs/upgrade

Demonstrates how the SQL proxy can be used to fetch a single 'Person' object by ID using a parameterized query.

```csharp
public interface ISql : ISqlDispatchProxy
{
    // Collection types
    [SqlExecute("select * from person")]
    List<Person> GetPersons();

    // Since v3.7.3+ supports returning single class type parameters
    [SqlExecute("select * from person where id=@id")]
    Person GetPerson(int id);
}
```

--------------------------------

### Configure SwaggerGen in Services

Source: https://rightpolice.github.io/Furion-Documentation/docs/specification-document

Customize Swagger generation options by configuring SwaggerGen within the AddInject method in ConfigureServices. This allows for advanced Swagger setup.

```csharp
public void ConfigureServices(IServiceCollection services)
{
    services.AddInject(options =>
    {
        options.ConfigureSwaggerGen(gen =>
        {
           // ....
        });
    });
}
```

--------------------------------

### Switching Databases with Sql Proxy

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-sql-proxy

Explains the three methods for switching the database context when using the Sql proxy: single method attribute, interface attribute, and runtime `.Change` method.

```APIDOC
## Switching Databases with Sql Proxy

### Description
Provides three ways to specify which database context the Sql proxy should use for execution.

### 1. Single Method Attribute (`[SqlDbContextLocator]`)
Apply the `[SqlDbContextLocator]` attribute directly to a method to specify its database context.

#### Example
```csharp
[SqlExecute("select * from person"), SqlDbContextLocator(typeof(MySqlDbContextLocator))]
List<Person> GetPerson();
```

### 2. Interface Attribute (`[SqlDbContextLocator]`)
Apply the `[SqlDbContextLocator]` attribute to an interface. All methods within that interface will then use the specified database context.

#### Example
```csharp
[SqlDbContextLocator(typeof(MySqlDbContextLocator))]
public interface ISql : ISqlDispatchProxy
{
    [SqlFunction("FN_Name")] // Scalar function
    string GetValue(MyParam dto);

    [SqlProcedure("FN_Name")] // Table-valued function
    List<Person> GetPersons(int id);
}
```

### 3. Runtime `.Change` Method
Dynamically switch the database context at runtime using the `.Change<T>()` method on the Sql proxy instance.

#### Example
```csharp
// Switch to a specific database
_sql.Change<MySqlDbContextLocator>();
_sql.GetPerson();

// Switch multiple times
_sql.Change<OracleDbContextLocator>();
_sql.GetPerson();

// Reset to the initial database context
_sql.ResetIt();
_sql.GetPerson();
```

### Priority
The priority for database context selection is: `.Change<>` > Method `[SqlDbContextLocator]` > Interface `[SqlDbContextLocator]`.

### Default
If no `DbContextLocator` is specified, `MasterDbContextLocator` is used by default.
```

--------------------------------

### Descending Order Query

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

Illustrates sorting query results in descending order. The first example sorts by a single column, and the second shows secondary sorting with ThenByDescending.

```csharp
// 示例一  
var query = repository.AsQueryable()  
                      .OrderByDescending(u => u.Id);  

```

```csharp
// 示例二  
var query =repository.AsQueryable()  
                     .OrderByDescending(u => u.Id)  
                     .ThenByDescending(u => u.Name);  

```

--------------------------------

### Execute Git Commit Command with CliWrap

Source: https://rightpolice.github.io/Furion-Documentation/docs/dotnet-tools

Demonstrates executing a 'git commit' command using CliWrap, showing both string and array argument formats.

```csharp
// 字符串参数方式  
var cmd = Cli.Wrap("git")  
    .WithArguments("commit -m \"my commit\"");  

// 数组参数方式  
var cmd = Cli.Wrap("git")  
    .WithArguments(new[] {"commit", "-m", "my commit"});  

// 执行命令  
var result = cmd.ExecuteAsync();  

```

--------------------------------

### Dynamic Database Switching with .Change()

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-sql-proxy

Dynamically switch the database context at runtime using the `.Change<T>()` method on the SQL proxy. This allows for flexible database routing based on application logic. Use `.ResetIt()` to revert to the initial state.

```csharp
// Switch sql proxy database to a specific database
_sql.Change<MySqlDbContextLocator>();
_sql.GetPerson();

// Multiple switches
_sql.Change<OracleDbContextLocator>();
_sql.GetPerson();

// Also supports resetting the database context locator to the initial state
_sql.ResetIt();
_sql.GetPerson();
```

--------------------------------

### Configure Database Logging with Custom Settings

Source: https://rightpolice.github.io/Furion-Documentation/docs/logging

Configure database logging with custom settings, such as specifying the minimum log level.

```csharp
// Example 2: Custom configuration
services.AddDatabaseLogging<DatabaseLoggingWriter>(options =>
{
    options.MinimumLevel = LogLevel.Warning;

    // Other configurations...
});
```

--------------------------------

### Configure NCache Distributed Cache

Source: https://rightpolice.github.io/Furion-Documentation/docs/cache

Register the NCache distributed cache service after installing the SDK and configuring the cache cluster. Specify the cache name and enable logging/exceptions if needed.

```csharp
services.AddNCacheDistributedCache(configuration =>  
{
    configuration.CacheName = "demoClusteredCache";
    configuration.EnableLogs = true;
    configuration.ExceptionsEnabled = true;
});  

```

--------------------------------

### Define a Generic Repository Class

Source: https://rightpolice.github.io/Furion-Documentation/docs/sqlsugar

Create a generic repository class that extends SimpleClient to leverage repository APIs. It supports dependency injection and manual context retrieval for repository switching.

```csharp
public class Repository<T> : SimpleClient<T> where T : class, new()  
{
    public Repository(ISqlSugarClient context = null) : base(context)//默认值等于null不能少  
    {
        base.Context = App.GetService<ISqlSugarClient>();//用手动获取方式支持切换仓储  
    }
}
```

--------------------------------

### Compile C# Class Code to Assembly

Source: https://rightpolice.github.io/Furion-Documentation/docs/global/app

Compiles a C# class definition string into an assembly. This allows you to get the runtime type of the compiled class. Requires Furion 4.8.8.7+.

```csharp
var jobAssembly = App.CompileCSharpClassCode(@"  
using Furion.Schedule;  
using Microsoft.Extensions.Logging;  
using System;  
using System.Threading;  
using System.Threading.Tasks;  
  
namespace YourProject;  
  
public class MyJob : IJob  
{
    private readonly ILogger<MyJob> _logger;

    public MyJob(ILogger<MyJob> logger)
    {
        _logger = logger;
    }

    public async Task ExecuteAsync(JobExecutingContext context, CancellationToken stoppingToken)
    {
        _logger.LogInformation($"我是 Roslyn 方式创建的：{context}");
        await Task.CompletedTask;
    }
}
");

// 生成运行时 MyJob 类型  
var jobType = jobAssembly.GetType("YourProject.MyJob");  

```

--------------------------------

### Customize Swagger Schema IDs

Source: https://rightpolice.github.io/Furion-Documentation/docs/specification-document

Customize how schema IDs are generated in Swagger by using the CustomSchemaIds method within ConfigureSwaggerGen. This example sets the schema ID to the full type name.

```csharp
services.AddControllersWithViews()
        .AddInject(options =>
        {
            options.ConfigureSwaggerGen(gen =>
            {
                gen.CustomSchemaIds(x => x.FullName);
            });
        });
```

--------------------------------

### Define Sharded Table Query

Source: https://rightpolice.github.io/Furion-Documentation/docs/dbcontext-hight-query

Configure a Person entity to query data from multiple sharded tables using ToSqlQuery. This example demonstrates querying unioned tables for specific dates.

```csharp
using Furion.DatabaseAccessor;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Metadata.Builders;
using System;
using System.Collections.Generic;

namespace Furion.Core
{
    public class Person : Entity, IEntityTypeBuilder<Person>
    {
        public string Name { get; set; }

        /// <summary>
        /// 配置实体关系
        /// </summary>
        /// <param name="entityBuilder"></param>
        /// <param name="dbContext"></param>
        /// <param name="dbContextLocator"></param>
        public void Configure(EntityTypeBuilder<Person> entityBuilder, DbContext dbContext, Type dbContextLocator)
        {
            entityBuilder.ToSqlQuery(
              @"select * from dbo.person.2020-09-19  
                union all  
                select * from dbo.person.2020-09-20");
        }
    }
}
```

--------------------------------

### Dependency Injection in Worker Service

Source: https://rightpolice.github.io/Furion-Documentation/docs/process-service

Illustrates how to manually create a scope to inject transient or scoped services within a `BackgroundService`, as only singleton scope is provided by default.

```csharp
public class Worker : BackgroundService  
{  
    // 日志对象  
    private readonly ILogger<JobService> _logger;  
  
    // 服务工厂  
    private readonly IServiceScopeFactory _scopeFactory;  
    public Worker(ILogger<Worker> logger  
        , IServiceScopeFactory scopeFactory)  
    {  
        _logger = logger;  
        _scopeFactory = scopeFactory;  
    }  
  
    protected override Task ExecuteAsync(CancellationToken stoppingToken)  
    {  
        // 放在循环外可以避免高频下频繁创建作用域和解析服务  
        using var scope = _scopeFactory.CreateScope();  
        var services = scope.ServiceProvider;  
  
        while (!stoppingToken.IsCancellationRequested)  
        {  
            // 放在循环内针对频率不是很高的操作  
            // using var scope = _scopeFactory.CreateScope();  
            // var services = scope.ServiceProvider;  
  
            // 获取数据库上下文  
            var dbContext = Db.GetDbContext(services);  
            // 获取仓储  
            var respository = Db.GetRepository<Person>(services);  
            // 解析其他服务  
            var otherService = services.GetService<XXX>();  
        }  
  
        return Task.CompletedTask;  
    }  
}  


```

--------------------------------

### Configure Custom Resource File Prefix

Source: https://rightpolice.github.io/Furion-Documentation/docs/local-language

Customize the prefix for resource files and optionally specify the assembly name in the configuration.

```json
{
  "LocalizationSettings": {
    "LanguageFilePrefix": "MyLang"
    // "AssemblyName": "你的其他层程序集名称"
  }
}

```

--------------------------------

### Get Recent Job Run Timelines

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

Retrieve the last 5 job trigger run records from memory using the GetTimelines() method. This feature is available from Furion version 4.8.4.3+.

```csharp
var timelines = trigger.GetTimelines();   // => [{numberOfRuns: 2, lastRunTime: "2023-01-03 14:00:08"}, {numberOfRuns: 1, lastRunTime: "2023-01-03 14:00:03"}, ...]

```

--------------------------------

### Registering Schedule Services

Source: https://rightpolice.github.io/Furion-Documentation/docs/job

Dynamically add jobs by registering the services. You can either fully dynamically register or partially static and partially dynamic.

```csharp
services.AddSchedule();

services.AddSchedule(options =>
{
    options.AddJob<MyJob>(concurrent: false, Triggers.PeriodSeconds(5));
});
```