SummerBoot 1.3.8

There is a newer version of this package available.
See the version list below for details.

dotnet add package SummerBoot --version 1.3.8

NuGet\Install-Package SummerBoot -Version 1.3.8

This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.

<PackageReference Include="SummerBoot" Version="1.3.8" />

For projects that support PackageReference, copy this XML node into the project file to reference the package.

paket add SummerBoot --version 1.3.8

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

#r "nuget: SummerBoot, 1.3.8"

#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.

// Install SummerBoot as a Cake Addin
#addin nuget:?package=SummerBoot&version=1.3.8

// Install SummerBoot as a Cake Tool
#tool nuget:?package=SummerBoot&version=1.3.8

The NuGet Team does not provide support for this client. Please contact its maintainers for support.

感谢jetbrain提供的ide许可证

SummerBoot的核心理念

将SpringBoot的先进理念与C#的简洁优雅合二为一，声明式编程，专注于”做什么”而不是”如何去做”。在更高层面写代码，更关心的是目标，而不是底层算法实现的过程，SummerBoot,致力于打造一个人性化框架，让.net开发变得更简单优雅。

框架说明

这是一个注解 + 接口的方式实现各种调用的全声明式框架，框架会通过Reflection Emit技术，自动生成接口的实现类。

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Getting Started

Nuget

你可以运行以下命令在你的项目中安装 SummerBoot。

PM> Install-Package SummerBoot

支持框架

net core 3.1,net 6

SummerBoot中操作数据库

summerBoot基于工作单元与仓储模式开发了自己的ORM->repository，底层基于dapper，上层通过模板模式，支持了常见的4种数据库类型（sqlserver，mysql，oracle，sqlite）的增删改查操作,如果有其他数据库需求，可以参考以上4个的源码，给本项目贡献代码。orm不支持多表的lambda查询，因为多表查询直接写sql更好更易理解。

准备工作

需要自己通过nuget安装相应的数据库依赖包，比如SqlServer的Microsoft.Data.SqlClient，mysql的Mysql.data, oracle的Oracle.ManagedDataAccess.Core

1.首先在startup.cs类中注册服务

services.AddSummerBoot();

services.AddSummerBootRepository(it =>
{
	//注册数据库类型，比如SqliteConnection，MySqlConnection,OracleConnection,SqlConnection
	it.DbConnectionType = typeof(SqliteConnection);
	//添加数据库连接字符串
	it.ConnectionString = "Data source=./mydb.db";

	//以下为可选操作
	//插入的时候自动添加创建时间，数据库实体类必须继承于BaseEntity,oracle继承于OracleBaseEntity
	it.AutoUpdateLastUpdateOn = true;
	//插入的时候自动添加创建时间，使用utc时间
	it.AutoUpdateLastUpdateOnUseUtc = false;
	//update的时候自动更新最后更新时间字段，数据库实体类必须继承于BaseEntity,oracle继承于OracleBaseEntity
	it.AutoAddCreateOn = true;
	//update的时候自动更新最后更新时间字段,使用utc时间
	it.AutoAddCreateOnUseUtc = false;
	//启用软删除，数据库实体类必须继承于BaseEntity,oracle继承于OracleBaseEntity
	it.IsUseSoftDelete = true;
});

2.定义一个数据库实体类

其中注解大部分来自于系统自带的命名空间System.ComponentModel.DataAnnotations 和 System.ComponentModel.DataAnnotations.Schema，比如表名Table,主键Key,主键自增DatabaseGenerated(DatabaseGeneratedOption.Identity)，列名Column，不映射该字段NotMapped等,同时自定义了一部分注解，比如更新时忽略该列IgnoreWhenUpdateAttribute(主要用在创建时间这种在update的时候不需要更新的字段), 同时SummerBoot自带了一个基础实体类BaseEntity（oracle 为OracleBaseEntity），实体类里包括自增的id，创建人，创建时间，更新人，更新时间以及软删除标记，推荐实体类直接继承BaseEntity

public class Customer:BaseEntity
{
    [Key,DatabaseGenerated(DatabaseGeneratedOption.Identity)]
    public int Id { set; get; }

    public string Name { set; get; }
    
    public int Age { set; get; } = 0;
    
    /// <summary>
    /// 会员号
    /// </summary>
    public string CustomerNo { set; get; }
    
    /// <summary>
    /// 总消费金额
    /// </summary>
    public decimal TotalConsumptionAmount { set; get; }
}

3.定义接口，并继承于IBaseRepository，同时在接口上添加AutoRepository注解表示让框架自动注册并生成实现类

[AutoRepository]
public interface ICustomerRepository : IBaseRepository<Customer>
{
}

4.增删改查操作，均支持异步同步

4.1 查

通过DI注入自定义仓储接口以后，就可以开始查了，支持正常查询与分页查询，查询有2种方式。

4.1.1 IQueryable链式语法查询。

//常规查询
var customers= customerRepository.Where(it => it.Age > 5).OrderBy(it => it.Id).Take(10).ToList();
//分页
var page2 = await customerRepository.Where(it => it.Age > 5).Skip(0).Take(10).ToPageAsync();

4.1.2 直接在接口里定义方法，并且在方法上加上注解Select,然后在Select里写sql语句

[AutoRepository]
public interface ICustomerRepository : IBaseRepository<Customer>
{
    //async
    [Select("select od.productName from customer c join orderHeader oh on c.id=oh.customerid" +
            " join orderDetail od on oh.id=od.OrderHeaderId where c.name=@name")]
    Task<List<CustomerBuyProduct>> QueryAllBuyProductByNameAsync(string name);

    [Select("select * from customer where age>@age order by id")]
    Task<Page<Customer>> GetCustomerByPageAsync(IPageable pageable, int age);

    //sync
    [Select("select od.productName from customer c join orderHeader oh on c.id=oh.customerid" +
            " join orderDetail od on oh.id=od.OrderHeaderId where c.name=@name")]
    List<CustomerBuyProduct> QueryAllBuyProductByName(string name);

    [Select("select * from customer where age>@age order by id")]
    Page<Customer> GetCustomerByPage(IPageable pageable, int age);

}

使用方法:

var result = await customerRepository.QueryAllBuyProductByNameAsync("testCustomer");

//page
var pageable = new Pageable(1, 10);
var page = customerRepository.GetCustomerByPage(pageable, 5);

注意：4.1.2查询里的分页支持，方法的返回值由Page这个类包裹，同时方法参数里必须包含 IPageable这个分页参数，sql语句里也要有order by，例如:

[Select("select * from customer where age>@age order by id")]
Page<Customer> GetCustomerByPage(IPageable pageable, int age);

4.1.3 select注解这种方式拼接where查询条件

将单个查询条件用{{}}包裹起来，一个条件里只能包括一个变量，同时在定义方法的时候，参数定义为WhereItem<T>,T为泛型参数，表示真正的参数类型，这样summerboot就会自动处理查询条件，处理规则如下，如果whereItem的active为true，即激活该条件，则sql语句中{{ }}包裹的查询条件会展开并参与查询，如果active为false，则sql语句中{{ }}包裹的查询条件自动替换为空字符串，不参与查询，为了使whereItem更好用，提供了WhereBuilder这种方式，使用例子如下所示：

//definition
[AutoRepository]
public interface ICustomerRepository : IBaseRepository<Customer>
{
[Select("select * from customer where 1=1 {{ and name=@name}}{{ and age=@age}}")]
Task<List<CustomerBuyProduct>> GetCustomerByConditionAsync(WhereItem<string> name, WhereItem<int> age);

[Select("select * from customer where 1=1 {{ and name=@name}}{{ and age=@age}} order by id")]
Task<Page<Customer>> GetCustomerByPageByConditionAsync(IPageable pageable, WhereItem<string> name, WhereItem<int> age);
}

//use
var nameEmpty = WhereBuilder.Empty<string>();//var nameEmpty =  new WhereItem<string>(false,"");

var ageEmpty = WhereBuilder.Empty<int>();
var nameWhereItem = WhereBuilder.HasValue("page5");//var nameWhereItem =WhereItem<string>(true,"page5"); 
var ageWhereItem = WhereBuilder.HasValue(5);
var pageable = new Pageable(1, 10);

var bindResult = customerRepository.GetCustomerByCondition(nameWhereItem, ageEmpty);
Assert.Single(bindResult);
var bindResult2 = customerRepository.GetCustomerByCondition(nameEmpty, ageEmpty);
Assert.Equal(102, bindResult2.Count);
var bindResult5 = customerRepository.GetCustomerByPageByCondition(pageable, nameWhereItem, ageEmpty);
Assert.Single(bindResult5.Data);
var bindResult6 = customerRepository.GetCustomerByPageByCondition(pageable, nameEmpty, ageEmpty);

如果还有更复杂的自定义查询怎么办？参考 6.如果有些特殊情况要求自己手写实现类怎么办?

4.1.4 IBaseRepository接口自带的查方法

Get方法，通过id获取结果，GetAll(),获取表里的所有结果集。

4.2 增

4.2.1 接口自带了Insert方法，可以插入单个实体，或者实体列表，如果实体类的主键名称为Id,且有Key注解，并且是自增的，那么插入后，框架会自动为实体的ID这个字段赋值，值为自增的ID值。

var customer = new Customer() { Name = "testCustomer" };
customerRepository.Insert(customer);

var customer2 = new Customer() { Name = "testCustomer2" };
var customer3 = new Customer() { Name = "testCustomer3" };
var customerList = new List<Customer>() { customer2, customer3 };
customerRepository.Insert(customerList);

4.3 删

4.3.1 接口自带了Delete方法，可以删除单个实体，或者实体列表

customerRepository.Delete(customer);

customerRepository.Delete(customerList);

4.3.2 同时还支持基于lambda表达式的删除，返回受影响的行数，例如

 var deleteCount = customerRepository.Delete(it => it.Age > 5);

4.4 改

4.4.1 接口自带了Update方法，可以更新单个实体，或者实体列表,联合主键的话，数据库实体类对应的多字段都添加key注解即可。

customerRepository.Update(customer);

customerRepository.Update(customerList);

4.4.2 同时还支持基于IQueryable链式语法的更新方式，返回受影响的行数，例如

var updateCount= customerRepository.Where(it=>it.Name == "testCustomer")
.SetValue(it=>it.Age,5)
.SetValue(it=>it.TotalConsumptionAmount,100)
.ExecuteUpdate();

4.5.事务支持

事务支持，需要在注入自定义仓储接口的同时，也注入框架自带的IUnitOfWork接口，用法如下

//uow is IUnitOfWork interface
try
{
    uow.BeginTransaction();
    customerRepository.Insert(new Customer() { Name = "testCustomer2" });
    var orderDetail3 = new OrderDetail
    {
        OrderHeaderId = orderHeader.Id,
        ProductName = "ball",
        Quantity = 3
    };
    orderDetailRepository.Insert(orderDetail3);
    uow.Commit();
}
catch (Exception e)
{
    uow.RollBack();
}

4.6 如果有些特殊情况需要自己手写实现类怎么办?

4.6.1 定义一个接口继承于IBaseRepository，并且在接口中定义自己的方法

注意，此时该接口无需添加AutoRepository注解

public interface ICustomCustomerRepository : IBaseRepository<Customer>
{
    Task<List<Customer>> GetCustomersAsync(string name);

    Task<Customer> GetCustomerAsync(string name);

    Task<int> UpdateCustomerNameAsync(string oldName, string newName);

    Task<int> CustomQueryAsync();
}

4.6.2 添加一个实现类，继承于BaseRepository类和自定义的ICustomCustomerRepository接口，实现类添加AutoRegister注解。

注解的参数为这个类对应的自定义接口的类型和服务的声明周期ServiceLifetime（周期默认为scope级别），添加AutoRegister注解的目的是让模块自动将自定义接口和自定义类注册到IOC容器中，后续直接注入使用即可，BaseRepository自带了Execute，QueryFirstOrDefault和QueryList方法，如果要接触更底层的dbConnection进行查询，参考下面的CustomQueryAsync方法，首先OpenDb()，然后查询，查询中一定要带上transaction:dbTransaction这个参数，查询结束以后CloseDb();

[AutoRegister(typeof(ICustomCustomerRepository))]
public class CustomCustomerRepository : BaseRepository<Customer>, ICustomCustomerRepository
{
    public CustomCustomerRepository(IUnitOfWork uow, IDbFactory dbFactory, RepositoryOption repositoryOption) : base(uow, dbFactory, repositoryOption)
    {
    }

    public async Task<Customer> GetCustomerAsync(string name)
    {
        var result =
            await this.QueryFirstOrDefaultAsync<Customer>("select * from customer where name=@name", new { name });
        return result;
    }

    public async Task<List<Customer>> GetCustomersAsync(string name)
    {
        var result = await this.QueryListAsync<Customer>("select * from customer where name=@name", new { name });

        return result;
    }

    public async Task<int> UpdateCustomerNameAsync(string oldName, string newName)
    {
        var result = await this.ExecuteAsync("update customer set name=@newName where name=@oldName", new { newName, oldName });
        return result;
    }

    public async Task<int> CustomQueryAsync()
    {
        this.OpenDb();
        var grid = await this.dbConnection.QueryMultipleAsync("select id from customer",transaction:dbTransaction);
        var id = grid.Read().FirstOrDefault()?.id;
        this.CloseDb();
        return id;
    }
}

SummerBoot中使用feign进行http调用

feign底层基于httpClient。

1.在startup.cs类中注册服务

services.AddSummerBoot();
services.AddSummerBootFeign();

2.定义接口

定义一个接口，并且在接口上添加FeignClient注解，FeignClient注解里可以自定义接口名称-Name，http接口url的公共部分-url（整个接口请求的url由FeignClient里的url加上方法里的path组成）,是否忽略远程接口的https证书校验-IsIgnoreHttpsCertificateValidate,接口超时时间-Timeout（单位s），自定义拦截器-InterceptorType。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
   [GetMapping("/query")]
   Task<Test> TestQuery([Query] Test tt);
}

同时，url和path可以通过读取配置获取，配置项通过${}包裹，配置的json如下：

{
  "configurationTest": {
    "url": "http://localhost:5001/home",
    "path": "/query"
  }
}

接口如下：

[FeignClient(Url = "${configurationTest:url}")]
public interface ITestFeignWithConfiguration
{
		[GetMapping("${configurationTest:path}")]
		Task<Test> TestQuery([Query] Test tt);
}

接口上可以选择添加Headers注解，代表这个接口下所有http请求都带上注解里的请求头。Headers的参数为变长的string类型的参数，同时Headers也可以添加在方法上，代表该方法调用的时候，会加该请求头，接口上的Headers参数可与方法上的Headers参数互相叠加，同时headers里可以使用变量，变量的占位符为{{}}，如

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
[Headers("a:a","b:b")]
public interface ITestFeign
{
	[GetMapping("/testGet")]
	Task<Test> TestAsync();
	
	[GetMapping("/testGetWithHeaders")]
	[Headers("c:c")]
	Task<Test> TestWithHeadersAsync();
	
	//header替换
	[Headers("a:{{methodName}}")]
	[PostMapping("/abc")]
	Task<Test> TestHeaderAsync(string methodName);
}

await TestFeign.TestAsync()
>>> get, http://localhost:5001/home/testGet,header为 "a:a" 和 "b:b"

await TestFeign.TestWithHeadersAsync()
>>> get, http://localhost:5001/home/testGetWithHeaders,header为 "a:a" ,"b:b"和 "c:c"

await TestFeign.TestHeaderAsync("abc");
>>> post, http://localhost:5001/home/abc，同时请求头为 "a:abc"

4.自定义拦截器

自定义拦截器对接口下的所有方法均生效，拦截器的应用场景主要是在请求前做一些操作，比如请求第三方业务接口前，需要先登录第三方系统，那么就可以在拦截器里先请求第三方登录接口，获取到凭证以后，放到header里，拦截器需要实现IRequestInterceptor接口，例子如下

//先定义一个用来登录的loginFeign客户端
 [FeignClient(Url = "http://localhost:5001/login", IsIgnoreHttpsCertificateValidate = true,Timeout = 100)]
    public interface ILoginFeign
    {
        [PostMapping("/login")]
        Task<LoginResultDto> LoginAsync([Body()] LoginDto loginDto );
    }
	
//接着自定义登录拦截器
public class LoginInterceptor : IRequestInterceptor
{

	private readonly ILoginFeign loginFeign;
	private readonly IConfiguration configuration;

	public LoginInterceptor(ILoginFeign loginFeign, IConfiguration configuration)
	{
		this.loginFeign = loginFeign;
		this.configuration = configuration;
	}
	

	public async Task ApplyAsync(RequestTemplate requestTemplate)
	{
		var username = configuration.GetSection("username").Value;
		var password = configuration.GetSection("password").Value;

		var loginResultDto = await this.loginFeign.LoginAsync(new LoginDto(){Name = username,Password = password});
		if (loginResultDto != null)
		{
			requestTemplate.Headers.Add("Authorization", new List<string>() { "Bearer "+loginResultDto.Token });
		}

		await Task.CompletedTask;
	}
}

//定义访问业务接口的testFegn客户端，在客户端上定义拦截器为loginInterceptor
[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(LoginInterceptor),Timeout = 100)]
public interface ITestFeign
{
	[GetMapping("/testGet")]
	Task<Test> TestAsync();
}

await TestFeign.TestAsync();
>>> get to http://localhost:5001/home/testGet,header为 "Authorization:Bearer abc"

忽略拦截器，有时候我们接口中的某些方法，是不需要拦截器的，那么就可以在方法上添加注解IgnoreInterceptor，那么该方法发起的请求，就会忽略拦截器，如

//定义访问业务接口的testFegn客户端，在客户端上定义拦截器为loginInterceptor
[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(LoginInterceptor),Timeout = 100)]
public interface ITestFeign
{
	[GetMapping("/testGet")]
	[IgnoreInterceptor]
	Task<Test> TestAsync();
}

await TestFeign.TestAsync();
>>> get to http://localhost:5001/home/testGet,没有header

5.定义方法

每个方法都应该添加注解代表发起请求的类型和要访问的url，有4个内置注解， GetMapping，PostMapping，PutMapping，DeleteMapping，同时方法的返回值必须是Task<>类型

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	[GetMapping("/testGet")]
	Task<Test> TestAsync();
	
	[PostMapping("/testPost")]
	Task<Test> TestPostAsync();
	
	[PutMapping("/testPut")]
	Task<Test> TestPutAsync();
	
	[DeleteMapping("/testDelete")]
	Task<Test> TestDeleteAsync();
}

5.1方法里的普通参数

参数如果没有特殊注解，或者不是特殊类，均作为动态参数参与url，header里变量的替换，(参数如果为类，则读取类的属性值)，url和header中的变量使用占位符{{}}，如果变量名和参数名不一致，则可以使用AliasAs注解（可以用在参数或者类的属性上）来指定别名，如

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	//url替换
	[PostMapping("/{{methodName}}")]
	Task<Test> TestAsync(string methodName);	
	
	//header替换
	[Headers("a:{{methodName}}")]
	[PostMapping("/abc")]
	Task<Test> TestHeaderAsync(string methodName);
	
	
	//AliasAs指定别名
	[Headers("a:{{methodName}}")]
	[PostMapping("/abc")]
	Task<Test> TestAliasAsAsync([AliasAs("methodName")] string name);
}

await TestFeign.TestAsync("abc");
>>> post to http://localhost:5001/home/abc

await TestFeign.TestAliasAsAsync("abc");
>>> post, http://localhost:5001/home/abc

await TestFeign.TestHeaderAsync("abc");
>>> post, http://localhost:5001/home/abc，同时请求头为 "a:abc"

5.2方法里的特殊参数

5.2.1参数添加Query注解

参数添加query注解后参数值将以key1=value1&key2=value2的方式添加到url后面。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	 [GetMapping("/TestQuery")]
	 Task<Test> TestQuery([Query] string name);
	 
	 [GetMapping("/TestQueryWithClass")]
	 Task<Test> TestQueryWithClass([Query]Test tt);
}

await TestFeign.TestQuery("abc");
>>> get, http://localhost:5001/home/TestQuery?name=abc

await TestFeign.TestQueryWithClass(new Test() { Name = "abc", Age = 3 });
>>> get, http://localhost:5001/home/TestQueryWithClass?Name=abc&Age=3

5.2.2参数添加Body(BodySerializationKind.Form)注解

相当于模拟html里的form提交，参数值将被URL编码后，以key1=value1&key2=value2的方式添加到载荷（body）里。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	 [PostMapping("/form")]
	 Task<Test> TestForm([Body(BodySerializationKind.Form)] Test tt);
}

await TestFeign.TestForm(new Test() { Name = "abc", Age = 3 });
>>> post, http://localhost:5001/home/form,同时body里的值为Name=abc&Age=3

5.2.3参数添加Body(BodySerializationKind.Json)注解

即以application/json的方式提交，参数值将会被json序列化后添加到载荷（body）里。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	 [PostMapping("/json")]
	 Task<Test> TestJson([Body(BodySerializationKind.Json)] Test tt);
}

await TestFeign.TestJson(new Test() { Name = "abc", Age = 3 });
>>> post, http://localhost:5001/home/json,同时body里的值为{"Name":"abc","Age":3}

5.2.4使用特殊类HeaderCollection作为方法参数，即可批量添加请求头

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	 [PostMapping("/json")]
	 Task<Test> TestJson([Body(BodySerializationKind.Json)] Test tt, HeaderCollection headers);
}

 var headerCollection = new HeaderCollection()
                { new KeyValuePair<string, string>("a", "a"), 
                    new KeyValuePair<string, string>("b", "b") };
					
await TestFeign.TestJson(new Test() { Name = "abc", Age = 3 },headerCollection);
>>> post, http://localhost:5001/home/json,同时body里的值为{"Name":"abc","Age":3},header为 "a:a" 和 "b:b"

5.2.5使用特殊类BasicAuthorization作为方法参数，即可添加basic认证的Authorization请求头

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	[GetMapping("/testBasicAuthorization")]
	Task<Test> TestBasicAuthorization(BasicAuthorization basicAuthorization);
}

 var username="abc";
 var password="123";
				 
await TestFeign.TestBasicAuthorization(new BasicAuthorization(username,password));
>>> get, http://localhost:5001/home/testBasicAuthorization,header为 "Authorization:Basic YWJjOjEyMw=="

5.2.6使用特殊类MultipartItem作为方法参数，并且在方法上标注Multipart注解，即可上传附件

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	//仅上传文件
	[Multipart]
	[PostMapping("/multipart")]
	Task<Test> MultipartTest(MultipartItem item);
	//在上传附件的同时，也可以附带参数
	[Multipart]
	[PostMapping("/multipart")]
	Task<Test> MultipartTest([Body(BodySerializationKind.Form)] Test tt, MultipartItem item);
}
//仅上传文件
var basePath = Path.Combine(AppContext.BaseDirectory, "123.txt");
var name="file";
var fileName="123.txt";
//方式1，使用byteArray
var byteArray=   File.ReadAllBytes(basePath);
var result = await testFeign.MultipartTest(new MultipartItem(byteArray, name, fileName));

//方式2 ，使用stream 
var fileStream= new FileInfo(basePath).OpenRead();
var result = await testFeign.MultipartTest(new MultipartItem(fileStream, name, fileName));

//方式3，使用fileInfo
var result = await testFeign.MultipartTest(new MultipartItem(new FileInfo(basePath),name,fileName));

 >>> post, http://localhost:5001/home/multipart,同时body里带有附件
 
 //在上传附件的同时，也可以附带参数
 var basePath = Path.Combine(AppContext.BaseDirectory, "123.txt");
 var name="file";
 var fileName="123.txt";
 //方式1，使用byteArray
 var byteArray=   File.ReadAllBytes(basePath);
 var result = await testFeign.MultipartTest(new Test() { Name = "sb", Age = 3 }, new MultipartItem(byteArray, name, fileName));
 
 //方式2 ，使用stream 
 var fileStream= new FileInfo(basePath).OpenRead();
 var result = await testFeign.MultipartTest(new Test() { Name = "sb", Age = 3 }, new MultipartItem(fileStream, name, fileName));
 
 //方式3，使用fileInfo
 var result = await testFeign.MultipartTest(new Test() { Name = "sb", Age = 3 },new MultipartItem(new FileInfo(basePath),name,fileName));
 
  >>> post, http://localhost:5001/home/multipart,同时body里的值为Name=abc&Age=3，并且带有附件

5.2.7使用类Stream作为方法返回类型，即可接收流式数据，比如下载文件。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	 [GetMapping("/downLoadWithStream")]
	Task<Stream> TestDownLoadWithStream();
}
				 
using var streamResult =await testFeign.TestDownLoadStream();
using var newfile = new FileInfo("D:\\123.txt").OpenWrite();
streamResult.CopyTo(newfile);

>>> get, http://localhost:5001/home/downLoadWithStream,返回值为流式数据，然后就可以保存为文件。

5.2.8使用类HttpResponseMessage作为方法返回类型，即可获得最原始的响应消息。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	[GetMapping("/test")]
	Task<HttpResponseMessage> Test();
}
				 
var rawResult =await testFeign.Test();

>>> get, http://localhost:5001/home/Test,返回值为httpclient的原始返回数据。

5.2.9使用类Task作为方法返回类型，即无需返回值。

[FeignClient(Url = "http://localhost:5001/home", IsIgnoreHttpsCertificateValidate = true, InterceptorType = typeof(MyRequestInterceptor),Timeout = 100)]
public interface ITestFeign
{
	[GetMapping("/test")]
	Task Test();
}
				 
await testFeign.Test();

>>> get, http://localhost:5001/home/Test,忽略返回值

6. 微服务-接入nacos

6.1 添加nacos配置

在appsettings.json/appsettings.Development.json配置文件中添加配置

{
  "nacos": {
    //nacos服务地址，如http://172.16.189.242:8848
    "serviceAddress": "http://172.16.189.242:8848/",
    //命名空间id，如832e754e-e845-47db-8acc-46ae3819b638或者public
    "namespaceId": "public",
    //要注册的服务名
    "serviceName": "test",
    //服务的分组名
    "groupName": "DEFAULT_GROUP",
    //主机协议，http或https
    "protocol": "http",
    //主机监听的端口号
    "port": 5001
  }
}

6.2 在StartUp.cs中添加配置

如果要把当前应用注册为微服务实例，则添加配置如下，那么本应用自动注册为微服务实例，并且服务名为配置的serviceName，其他微服务即可通过服务名调用本应用的接口。

services.AddSummerBoot();
services.AddSummerBootFeign(it =>
{
		it.EnableNacos = true;
		it.NacosRegisterInstance = true;
});

如果当前应用仅仅是调用其他微服务，本机不注册为微服务实例，则添加配置如下。

services.AddSummerBoot();
services.AddSummerBootFeign(it =>
{
		it.EnableNacos = true;
});

6.3 定义调用微服务的接口

主要是设置微服务的名称ServiceName，和MicroServiceMode设为true即可。url不用配置，剩下的就和正常的feign接口一样。

[FeignClient( ServiceName = "test",MicroServiceMode = true)]
public interface IFeignService
{
		[GetMapping("/home/index")]
		Task<string> TestGet();
}

SummerBoot中的人性化的设计

1.先说一个net core mvc自带的功能，如果我们想要在appsettings.json里配置web应用的ip和port该怎么办？在appsettings.json里直接写

{
    "urls":"http://localhost:7002;http://localhost:7012"
}

AutoRegister注解，作用是让框架自动将接口和接口的实现类注册到IOC容器中，标注在实现类上，注解的参数为这个类对应的自定义接口的type和服务的生命周期ServiceLifetime（周期默认为scope级别），使用方式如下:

 public interface ITest
    {

    }

    [AutoRegister(typeof(ITest),ServiceLifetime.Transient)]
    public class Test:ITest
    {

    }

ApiResult 接口返回值包装类，包含 code，msg和data，3个字段，让整个系统的返回值统一有序，有利于前端的统一拦截，统一操作。使用方式如下:

[HttpPost("CreateServerConfigAsync")]
public async Task<ApiResult<bool>> CreateServerConfigAsync(ServerConfigDto dto)
{
		var result = await serverConfigService.CreateServerConfigAsync(dto);
		return ApiResult<bool>.Ok(result);
}

对net core mvc的一些增强操作，包括全局错误拦截器，和接口参数校验失败后的处理，配合ApiResult，使得系统报错时，也能统一返回，使用方式如下,首先在startUp里注册该服务，注意，要放在mvc注册之后:

services.AddControllersWithViews();
services.AddSummerBootMvcExtension(it =>
{
		//是否启用全局错误处理
		it.UseGlobalExceptionHandle = true;
		//是否启用参数校验处理
		it.UseValidateParameterHandle = true;
});

4.1 全局错误拦截器使用后的效果我们可以直接在业务代码里抛出错误，全局错误拦截器会捕捉到该错误，然后使用统一格式返回给前端，业务代码如下:

private void ValidateData(EnvConfigDto dto)
{
		if (dto == null)
		{
			throw new ArgumentNullException("参数不能为空");
		}
		if(dto.ServerConfigs==null|| dto.ServerConfigs.Count==0)
		{
			throw new ArgumentNullException("环境下没有配置服务器");
		}
}

如果业务代码里报错,则返回值如下:

{
  "code": 40000,
  "msg": "Value cannot be null. (Parameter '环境下没有配置服务器')",
  "data": null
}

4.2 接口参数校验失败后的处理的效果我们在接口的参数dto里添加校验注解，代码如下

public class EnvConfigDto : BaseEntity
{
		/// <summary>
		/// 环境名
		/// </summary>
		[Required(AllowEmptyStrings = false, ErrorMessage = "环境名称不能为空")]
		public string Name { get; set; }
		/// <summary>
		/// 环境下对应的服务器
		/// </summary>
		[NotMapped]
		public List<int> ServerConfigs { get; set; }
}

如果参数校验不通过,则返回值如下:

{
  "code": 40000,
  "msg": "环境名称不能为空",
  "data": null
}

QueryCondition，lambda查询条件组合，解决前端传条件过来进行过滤查询的痛点，除了基本的And和Or方法，还添加了更人性化的方法，一般前端传过来的dto里的属性，有字符串类型，如果他们有值则添加到查询条件里，所以特地提取了2个方法，包括了AndIfStringIsNotEmpty（如果字符串不为空则进行and操作，否则返回原表达式），OrIfStringIsNotEmpty（如果字符串不为空则进行or操作，否则返回原表达式），同时dto里的属性，还有可能是nullable类型，即可空类型，比如 int? test代表用户是否填写某个过滤条件，如果hasValue则添加到查询条件里，所以特地提取了2个方法，AndIfNullableHasValue（如果可空值不为空则进行and操作，否则返回原表达式），OrIfNullableHasValue（如果可空值不为空则进行and操作，否则返回原表达式）用法如下:

//dto
public class ServerConfigPageDto : IPageable
{
	public int PageNumber { get; set; }
	public int PageSize { get; set; }
	/// <summary>
	/// ip地址
	/// </summary>
	public string Ip { get; set; }
	/// <summary>
	/// 连接名
	/// </summary>
	public string ConnectionName { get; set; }
	
	public int? Test { get; set; }
}
//condition
 var queryCondition = QueryCondition.True<ServerConfig>()
	.And(it => it.Active == 1)
	//如果字符串不为空则进行and操作，否则返回原表达式
	.AndIfStringIsNotEmpty(dto.Ip, it => it.Ip.Contains(dto.Ip))
	//如果可空值不为空则进行and操作，否则返回原表达式
	.AndIfNullableHasValue(dto.Test,it=>it.Test==dto.Test)
	.AndIfStringIsNotEmpty(dto.ConnectionName,it=>it.ConnectionName.Contains(dto.ConnectionName));
				
 var queryResult = await serverConfigRepository.Where(queryCondition)
	.Skip((dto.PageNumber - 1) * dto.PageSize).Take(dto.PageSize).ToPageAsync();

Product	Compatible and additional computed target framework versions.
.NET	net5.0 was computed. net5.0-windows was computed. net6.0 is compatible. net6.0-android was computed. net6.0-ios was computed. net6.0-maccatalyst was computed. net6.0-macos was computed. net6.0-tvos was computed. net6.0-windows was computed. net7.0 was computed. net7.0-android was computed. net7.0-ios was computed. net7.0-maccatalyst was computed. net7.0-macos was computed. net7.0-tvos was computed. net7.0-windows was computed. net8.0 was computed. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed.
.NET Core	netcoreapp3.1 is compatible.

Product

.NET

.NET Core

Compatible target framework(s)

Included target framework(s) (in package)

Learn more about Target Frameworks and .NET Standard.

.NETCoreApp 3.1
- Dapper (>= 2.0.123)
- Newtonsoft.Json (>= 12.0.3)
- Polly (>= 7.2.3)
net6.0
- Dapper (>= 2.0.123)
- Newtonsoft.Json (>= 12.0.3)
- Polly (>= 7.2.3)

NuGet packages (1)

Showing the top 1 NuGet packages that depend on SummerBoot:

Package	Downloads
MiHome.Net 小米米家的原生c#sdk,他可以通过云端或者本地的方式用api来操作米家智能家居设备。 Xiaomi Mijia's native c# sdk can use APIs to operate Mijia smart home devices through the cloud or locally.	404

GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on SummerBoot:

Repository	Stars
TripleView/MiHome.Net MiHome's C# native SDK,which can control Mijia smart devices through the network and local methods.	122

Version	Downloads	Last updated
2.1.5	129	8/30/2024
2.1.3	404	3/29/2024
2.1.2	100	3/27/2024
2.1.1	137	1/13/2024
2.1.0	122	1/12/2024
2.0.9	124	1/5/2024
2.0.8	163	12/21/2023
2.0.7	181	11/28/2023
2.0.6	161	11/3/2023
2.0.5	157	10/20/2023
2.0.4	244	7/8/2023
2.0.3	168	6/21/2023
2.0.2	172	5/25/2023
2.0.1	160	5/16/2023
2.0.0	265	4/7/2023
1.4.2	509	9/15/2022
1.4.1	457	7/28/2022
1.4.0	474	6/1/2022
1.3.9	419	5/20/2022
1.3.8	439	5/19/2022
1.3.7	457	5/6/2022
1.3.6	451	3/29/2022
1.3.5	457	3/25/2022
1.3.4	464	2/9/2022
1.3.3	446	2/8/2022
1.3.2	456	2/8/2022
1.3.1	518	1/30/2022
1.3.0	520	1/14/2022
1.2.0	7,176	4/24/2020
1.1.1	759	3/18/2020
1.0.1	866	1/1/2020
1.0.0	1,282	9/23/2019
0.1.0	755	1/1/2020

将SpringBoot的先进理念与C#的简洁优雅合二为一，声明式编程，专注于”做什么”而不是”如何去做”。在更高层面写代码，更关心的是目标，而不是底层算法实现的过程，SummerBoot,致力于让.net开发变得更简单。