标签:any mod pos new 客户 htm html cep nta
阅读目录
- 为什么要使用FluentValidation
- 使用FluentValidation
- FluentValidation学习的资料
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为什么要使用FluentValidation
1.在日常的开发中,需要验证参数的合理性,不紧前端需要验证传毒的参数,后端也需要验证参数
2.在领域模型中也应该验证,做好防御性的编程是一种好的习惯(其实以前重来不写的,被大佬教育了一番)
3.FluentValidation 是.NET 开发的验证框架,开源,主要是简单好用,内置了一些常用的验证器,可以直接使用,扩展也很方便
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使用FluentValidation
1.引入FluentValidation.AspNetCore NuGet包
2.建立需要验证的类
/// /// 创建客户
/// public class CreateCustomerDto
{
/// /// 客户姓名
/// public string CustomerName { get; set; }
/// /// 客户年龄
/// public string CustomerAge { get; set; }
/// /// 客户电话
/// public string CustomerPhone { get; set; }
/// /// 客户地址
/// public Address CustomerAddress { get; set; }
}
/// /// 验证
/// public class CreateCustomerDtoValidator : AbstractValidator
{
public CreateCustomerDtoValidator()
{
RuleFor(x => x.CustomerName)
.NotEmpty()
.WithMessage("客户姓名不能为空");
RuleFor(x => x.CustomerPhone)
.NotEmpty()
.WithMessage("客户电话不能为空");
}
}
3.统一返回验证的信息,ResponseResult为全局统一参数返回的类
/// /// 添加AddFluentValidationErrorMessage
/// ///
public DependencyInjectionService AddFluentValidationErrorMessage()
{
_services.Configure(options =>
{
options.InvalidModelStateResponseFactory = (context) =>
{
var errors = context.ModelState
.Values
.SelectMany(x => x.Errors
.Select(p => p.ErrorMessage))
.ToList();
var result = new ResponseResult>
{
StatusCode = "00009",
Result = errors,
Message = string.Join(",", errors.Select(e => string.Format("{0}", e)).ToList()),
IsSucceed = false
};
return new BadRequestObjectResult(result);
};
});
return _dependencyInjectionConfiguration;
}
4.注入验证的类
使用builder.RegisterType().As();比较麻烦每次新增都需要添加一次注入
所以我们使用批量的注入,来减少麻烦,通过反射获取所有的验证的类批量注入
/// /// 添加MVC
/// /// public DependencyInjectionService AddMvc()
{
_services.AddControllers(options =>
{
options.Filters.Add(typeof(LogHelper));
}).AddJsonOptions(options =>
{
//忽略循环引用
//options.JsonSerializerOptions.IgnoreReadOnlyProperties = true;
}).AddFluentValidation(options =>
{
options.RunDefaultMvcValidationAfterFluentValidationExecutes = false;
var validatorList = GetFluentValidationValidator("ConferenceWebApi");
foreach (var item in validatorList)
{
options.RegisterValidatorsFromAssemblyContaining(item);
}
});
return _dependencyInjectionConfiguration;
}
/// /// 获取所有的FluentValidation Validator的类
/// public IEnumerableGetFluentValidationValidator(string assemblyName)
{
if (assemblyName == null)
throw new ArgumentNullException(nameof(assemblyName));
if (string.IsNullOrEmpty(assemblyName))
throw new ArgumentNullException(nameof(assemblyName));
var implementAssembly = RuntimeHelper.GetAssembly(assemblyName);
if (implementAssembly == null)
{
throw new DllNotFoundException($"the dll ConferenceWebApi not be found");
}
var validatorList = implementAssembly.GetTypes().Where(e => e.Name.EndsWith("Validator"));
return validatorList;
}
5.使用起来就十分简单了
/// /// 创建客户
/// ///
///
[HttpPost]
public async Taskstring>> CreateCustomer([FromBody] CreateCustomerDto input)
{
var createCustomerCommand = new CreateCustomerCommand(input.CustomerName,input.CustomerAge,input.CustomerPhone,input.CustomerAddress);
await _commandService.SendCommandAsync(createCustomerCommand);
var result = new ResponseResultstring>
{
IsSucceed = true,
Result = "创建客户成功!"
};
return result;
}
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FluentValidation学习的资料
感谢大佬们的分享,零度编程中的教程非常的全面,包括了许多的验证器的使用,记不住时直接可以翻阅查看
零度编程:https://www.xcode.me/post/5849
Lamond Lu:https://www.cnblogs.com/lwqlun/p/10311945.html
Net Core3.0 WEB API 中使用FluentValidation
标签:any mod pos new 客户 htm html cep nta
原文地址:https://www.cnblogs.com/Leo_wl/p/12290006.html