小编Nko*_*osi的帖子

我正在尝试在IIS 6.0上运行ASP.NET MVC 3站点.

目前,当我从服务器请求页面时,它会出现以下错误:

分析器错误消息:在应用程序的预启动初始化阶段,无法调用此方法.

在这条线上:

<add name="MyMembershipProvider" type="NS.MyMembershipProvider" connectionStringName="MyDatabase" applicationName="/MySite"/>

我完全难过,并且对ASP.NET应用程序生命周期没有太多线索,更不用说6.0和7.0之间的差异了.阅读它上面的MSDN页面似乎没什么帮助.

有没有人有任何见解或任何良好的调查链接？:)

问题

我想在我的ASP.Net Web API Controller中返回一个文件,但我的所有方法都返回HttpResponseMessage为JSON.

代码到目前为止

public async Task<HttpResponseMessage> DownloadAsync(string id)
{
    var response = new HttpResponseMessage(HttpStatusCode.OK);
    response.Content = new StreamContent({{__insert_stream_here__}});
    response.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
    return response;
}

当我在浏览器中调用此端点时,Web API会返回设置HttpResponseMessage为HTTP Content Header 的as JSON application/json.

我有一些问题试图包装我的代码用于单元测试.问题是这样的.我有接口IHttpHandler:

public interface IHttpHandler
{
    HttpClient client { get; }
}

而使用它的类,HttpHandler:

public class HttpHandler : IHttpHandler
{
    public HttpClient client
    {
        get
        {
            return new HttpClient();
        }
    }
}

然后是Connection类,它使用simpleIOC来注入客户端实现:

public class Connection
{
    private IHttpHandler _httpClient;

    public Connection(IHttpHandler httpClient)
    {
        _httpClient = httpClient;
    }
}

然后我有一个单元测试项目,有这个类:

private IHttpHandler _httpClient;

[TestMethod]
public void TestMockConnection()
{
    var client = new Connection(_httpClient);

    client.doSomething();  

    // Here I want to somehow create a mock instance of the http client
    // Instead of the …

我正在使用Chart.JS绘制数据集,

但是我的效果很好!

这是我得到的曲线:

这是我的代码:

function plotChart(data, labels) {

    var lineChartData = {
        "datasets": [{
            "data": data,
            "pointStrokeColor": "#fff",
            "fillColor": "rgba(220,220,220,0.5)",
            "pointColor": "rgba(220,220,220,1)",
            "strokeColor": "rgba(220,220,220,1)"
        }],
        "labels": labels
    };

    var myLine = new Chart(document.getElementById("canvas").getContext("2d")).Line(lineChartData);

}

我怎样才能有直线而不是曲线？

谢谢

我是XUnit和Moq的新手.我有一个方法,它将字符串作为参数.如何使用XUnit处理异常.

[Fact]
public void ProfileRepository_GetSettingsForUserIDWithInvalidArguments_ThrowsArgumentException() {
    //arrange
    ProfileRepository profiles = new ProfileRepository();
    //act
    var result = profiles.GetSettingsForUserID("");
    //assert
    //The below statement is not working as expected.
    Assert.Throws<ArgumentException>(() => profiles.GetSettingsForUserID(""));
}

正在测试的方法

public IEnumerable<Setting> GetSettingsForUserID(string userid)
{            
    if (string.IsNullOrWhiteSpace(userid)) throw new ArgumentException("User Id Cannot be null");
    var s = profiles.Where(e => e.UserID == userid).SelectMany(e => e.Settings);
    return s;
}

我正在尝试为调用异步存储库的类创建单元测试.我正在使用ASP.NET Core和Entity Framework Core.我的通用存储库看起来像这样.

public class EntityRepository<TEntity> : IEntityRepository<TEntity> where TEntity : class
{
    private readonly SaasDispatcherDbContext _dbContext;
    private readonly DbSet<TEntity> _dbSet;

    public EntityRepository(SaasDispatcherDbContext dbContext)
    {
        _dbContext = dbContext;
        _dbSet = dbContext.Set<TEntity>();
    }

    public virtual IQueryable<TEntity> GetAll()
    {
        return _dbSet;
    }

    public virtual async Task<TEntity> FindByIdAsync(int id)
    {
        return await _dbSet.FindAsync(id);
    }

    public virtual IQueryable<TEntity> FindBy(Expression<Func<TEntity, bool>> predicate)
    {
        return _dbSet.Where(predicate);
    }

    public virtual void Add(TEntity entity)
    {
        _dbSet.Add(entity);
    }
    public virtual void Delete(TEntity entity)
    {
        _dbSet.Remove(entity);
    }

    public virtual …

我试图将一个服务注入我的动作过滤器,但我没有在构造函数中注入所需的服务.这是我有的:

public class EnsureUserLoggedIn : ActionFilterAttribute
{
    private readonly ISessionService _sessionService;

    public EnsureUserLoggedIn()
    {
        // I was unable able to remove the default ctor 
        // because of compilation error while using the 
        // attribute in my controller
    }

    public EnsureUserLoggedIn(ISessionService sessionService)
    {
        _sessionService = sessionService;
    }

    public override void OnActionExecuting(ActionExecutingContext context)
    {
        // Problem: _sessionService is null here
        if (_sessionService.LoggedInUser == null)
        {
            context.HttpContext.Response.StatusCode = (int)HttpStatusCode.Unauthorized;
            context.Result = new JsonResult("Unauthorized");
        }
    }
}

而我正在装饰我的控制器:

[Route("api/issues"), EnsureUserLoggedIn]
public class IssueController : …

我正在构建ASP.NET Core WebAPI,我正在尝试为控制器编写单元测试.我发现的大多数示例都来自较旧的WebAPI/WebAPI2平台,似乎与新的Core控制器无关.

我的控制器方法正在返回IActionResults.但是,该IActionResult对象只有一个ExecuteResultAsync()需要控制器上下文的方法.我手动实例化控制器,因此此实例中的控制器上下文为null,这会在调用时导致异常ExecuteResultAsync.从本质上讲,这是让我走上一条非常黑客的道路,让这些单元测试成功完成并且非常混乱.我想知道必须有一种更简单/更正确的API控制器测试方法.

此外,如果有所不同,我的控制器不使用async/await.

我想要实现的简单例子:

控制器方法:

[HttpGet(Name = "GetOrdersRoute")]
public IActionResult GetOrders([FromQuery]int page = 0)
{
     try
     {
        var query = _repository.GetAll().ToList();

        int totalCount = query.Count;
        int totalPages = (int)Math.Ceiling((double)totalCount / pageSize) - 1;
        var orders = query.Skip(pageSize * page).Take(pageSize);

        return Ok(new
        {
           TotalCount = totalCount,
           TotalPages = totalPages,

           Orders = orders
        });
     }
     catch (Exception ex)
     {
        return BadRequest(ex);
     }
}

单元测试:

[Fact]
public void GetOrders_WithOrdersInRepo_ReturnsOk()
{
     // arrange
     var …

当我尝试Configure在Startup.cs文件中的方法中使用自定义DbContext时,我收到以下异常.我在版本2.0.0-preview1-005977中使用ASP.NET Core

未处理的异常:System.Exception:无法为类型为"Communicator.Backend.Startup"的方法"Configure"的参数"dbContext"解析类型为"Communicator.Backend.Data.CommunicatorContext"的服务.---> System.InvalidOperationException:无法从根提供程序解析作用域服务"Communicator.Backend.Data.CommunicatorContext".

当我尝试接收其他实例时,也会抛出此异常.

未处理的异常:System.Exception:无法解析类型为"Communicator.Backend.Services.ILdapService"的服务 ...

这是我ConfigureServices和Configure方法.

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContext<CommunicatorContext>(options => options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
    services.AddCookieAuthentication();
    services.Configure<LdapConfig>(Configuration.GetSection("Ldap"));
    services.AddScoped<ILdapService, LdapService>();
    services.AddMvc();
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory, CommunicatorContext dbContext, ILdapService ldapService)
{
    app.UseAuthentication();
    app.UseWebSockets();
    app.Use(async (context, next) =>
    {
        if (context.Request.Path == "/ws")
        {
            if (context.WebSockets.IsWebSocketRequest)
            {
                WebSocket webSocket = await context.WebSockets.AcceptWebSocketAsync();
                await Echo(context, webSocket);
            }
            else
            {
                context.Response.StatusCode = 400;
            }
        }
        else
        {
            await next();
        }
    }); …

我正在尝试使用这段代码将文件保存在磁盘上.

IHostingEnvironment _hostingEnvironment;
public ProfileController(IHostingEnvironment hostingEnvironment)
{
   _hostingEnvironment = hostingEnvironment;
}

[HttpPost]
public async Task<IActionResult> Upload(IList<IFormFile> files)
{
    foreach (var file in files)
    {
        var fileName = ContentDispositionHeaderValue
            .Parse(file.ContentDisposition)
            .FileName
            .Trim('"');

        var filePath = _hostingEnvironment.WebRootPath + "\\wwwroot\\" + fileName;
        await file.SaveAsAsync(filePath);
    }
    return View();
}

我能代替IApplicationEnvironment与IHostingEnvironment,并ApplicationBasePath与WebRootPath.

似乎IFormFile不再具有SaveAsAsync()了.如何将文件保存到磁盘呢？