mvc网站迁移.net core记录
接口return Json()时序列号小写的问题
在Startup.cs-》ConfigureServices方法配置一下解决
public void ConfigureServices(IServiceCollection services)
{
// Add framework services.
services.AddMvc()
.AddJsonOptions(op => op.SerializerSettings.ContractResolver =
new Newtonsoft.Json.Serialization.DefaultContractResolver());
}
视图中输出中文会乱码
ConfigureServices方法中配置即可，详情见院长文章 http://www.cnblogs.com/dudu/p/5879913.html
services.Configure<WebEncoderOptions>(options =>
{
options.TextEncoderSettings = new TextEncoderSettings(UnicodeRanges.All);
});
.net core中配置伪静态
Configure方法中，还是一样的配方
app.UseMvc(routes =>
{
routes.MapRoute(
name: "index",
template: "index.html",
defaults: new { controller = "Home", action = "Index" }
);
routes.MapRoute(
name: "detail",
template: "detail/{id}.html",
defaults: new { controller = "Home", action = "Detail" }
);
routes.MapRoute(
name: "add",
template: "add.html",
defaults: new { controller = "Home", action = "Add" }
);
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
单个文件上传
[HttpPost]
public IActionResult Upload(IFormFile file)
{
string previewPath = "";//加域名什么的
long size = 0;
var upFileName = ContentDispositionHeaderValue
.Parse(file.ContentDisposition)
.FileName
.Trim('"');
var fileName = Guid.NewGuid() + Path.GetExtension(upFileName);
size += file.Length;
if (size > UploadMaxLength)
{
return Json(new
{
code = 0,
msg = "图片太大，不能超过5M"
});
}
previewPath += "/uploads/" + fileName;
var savePath = _hostingEnv.WebRootPath + @"\uploads\" + fileName;
var saveDir = _hostingEnv.WebRootPath + @"\uploads\";
if (!Directory.Exists(saveDir))
{
Directory.CreateDirectory(saveDir);
}
using (FileStream fs = System.IO.File.Create(savePath))
{
file.CopyTo(fs);
fs.Flush();
}
return Json(new
{
code = 0,
msg = "上传成功",
data = new
{
src = previewPath,
title = ""
}
});
}
core tag标签不解析，无智能提示
若_ViewImports.cshtml视图文件中无注入代码则添加注入代码。
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
或者在视图中注入TagHelper：@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
然后，asp-提示出来了，能解析了，也变颜色了~
asp.net core 禁止视图编译到dll
// 生成时会忽略视图的错误
<MvcRazorCompileOnBuild>false</MvcRazorCompileOnBuild>
// 发布时不编译视图到dll
<MvcRazorCompileOnPublish>false</MvcRazorCompileOnPublish>
自动注入服务
定义接口并继承
public interface IDependency
{
}
/// <summary>
/// 实现该接口将自动注册到Ioc容器，生命周期为每次请求创建一个实例
/// </summary>
public interface IScopeDependency : IDependency
{
}
/// <summary>
/// 实现该接口将自动注册到Ioc容器，生命周期为单例
/// </summary>
public interface ISingletonDependency : IDependency
{
}
/// <summary>
/// 实现该接口将自动注册到Ioc容器，生命周期为每次创建一个新实例
/// </summary>
public interface ITransientDependency : IDependency
{
}
public class TestService : IScopeDependency
{
}
注入
/// <summary>
/// 注入服务
/// </summary>
/// <param name="services"></param>
/// <returns></returns>
public static IServiceCollection AddAppServices(this IServiceCollection services)
{
//services.AddScoped<Services.User.IUserService, Services.User.UserService>();
#region 依赖注入
var baseType = typeof(IDependency);
var path = AppDomain.CurrentDomain.RelativeSearchPath ?? AppDomain.CurrentDomain.BaseDirectory;
var getFiles = System.IO.Directory.GetFiles(path, "*.dll");
var referencedAssemblies = getFiles.Select(Assembly.LoadFrom).ToList();
var ss = referencedAssemblies.SelectMany(o => o.GetTypes());
var types = referencedAssemblies
.SelectMany(a => a.DefinedTypes)
.Select(type => type.AsType())
.Where(x => x != baseType && baseType.IsAssignableFrom(x)).ToList();
var implementTypes = types.Where(x => x.IsClass).ToList();
var interfaceTypes = types.Where(x => x.IsInterface).ToList();
var dependTypes = new Dictionary<string, Type>() { { nameof(IScopeDependency), typeof(IScopeDependency) }, { nameof(ITransientDependency), typeof(ITransientDependency) }, { nameof(ISingletonDependency), typeof(ISingletonDependency) } };
foreach (var implementType in implementTypes)
{
foreach (var dependType in dependTypes)
{
if (dependType.Value.IsAssignableFrom(implementType))
{
var interfaceType = interfaceTypes.FirstOrDefault(x => x.IsAssignableFrom(implementType) && !x.IsAssignableFrom(dependType.Value));
if (interfaceType == null)
{
interfaceType = implementType;
}
if (dependType.Key == nameof(IScopeDependency))
{
services.AddScoped(interfaceType, implementType);
}
}
}
}
#endregion
return services;
}
自定义模型验证
定义特性标记，在action上使用
public class ModelValidAttribute : Attribute, IFilterMetadata
{
public bool IgnoreAll { get; set; }
public List<string> IgnoreAttr { get; set; }
public ModelValidAttribute() { }
public ModelValidAttribute(params string[] ignoreAttr)
{
IgnoreAttr = ignoreAttr.ToList();
}
}
验证配置
/// <summary>
/// 自定义模型验证
/// </summary>
/// <param name="services"></param>
/// <returns></returns>
public static IServiceCollection ConfigureModelValid(this IServiceCollection services)
{
services.Configure<ApiBehaviorOptions>(options =>
{
options.InvalidModelStateResponseFactory = (context) =>
{
var validItem = context.ActionDescriptor.FilterDescriptors.Where(s => typeof(ModelValidAttribute).IsInstanceOfType(s.Filter)).Select(s => s.Filter as ModelValidAttribute).FirstOrDefault();
if (validItem?.IgnoreAll == true)
{
return null;
}
var ignoreAttr = validItem?.IgnoreAttr?.Select(s => s.ToLower()).ToList() ?? new List<string>();
var errors = (from item in context.ModelState
where item.Value.Errors.Any() && !string.IsNullOrEmpty(item.Value.Errors[0].ErrorMessage) && (ignoreAttr.Contains(item.Key.ToLower()) ? item.Value.Errors.Count(s => s.Exception != null) == 0 : true)
select new { item.Key, Errors = item.Value.Errors }).ToList();
if (errors.Count == 0)
{
return null;
}
string firstMsg = errors.FirstOrDefault()?.Errors?.FirstOrDefault()?.ErrorMessage;
if (string.IsNullOrEmpty(firstMsg) || firstMsg.Contains(", position "))
{
firstMsg = "参数验证不通过";
}
return new JsonResult(OperateResult.Error(firstMsg, new { errors = errors }));
};
});
return services;
}
