无法在不抛出错误的情况下将接口传递给控制器
Can't pass in interface to controller without throwing error
我创建了一个服务 class 'TeacherService' 带有一个接口,我想将它传递到我的控制器的构造函数中,但是当我尝试时,其中一个构造函数出现错误
只要我在构造函数参数中输入一个逗号,它就会变成红色的下划线
new TeacherRepository()
说它无法解析构造函数。
这是代码。
public class TeacherController : Controller
{
private readonly ITeacherRepository teacherRepository;
private readonly ITeacherService teacherService;
// If you are using Dependency Injection, you can delete the following constructor
public TeacherController() : this(new TeacherRepository())
{
}
public TeacherController(ITeacherRepository teacherRepository, ITeacherService teacherService)
{
this.teacherRepository = teacherRepository;
this.teacherService = teacherService;
}
public TeacherController() : this(new TeacherRepository())
您正在调用第二个构造函数,它只需要一个参数就需要两个参数。添加默认的 TeacherService
让它编译。
我创建了一个服务 class 'TeacherService' 带有一个接口,我想将它传递到我的控制器的构造函数中,但是当我尝试时,其中一个构造函数出现错误
只要我在构造函数参数中输入一个逗号,它就会变成红色的下划线
new TeacherRepository()
说它无法解析构造函数。 这是代码。
public class TeacherController : Controller
{
private readonly ITeacherRepository teacherRepository;
private readonly ITeacherService teacherService;
// If you are using Dependency Injection, you can delete the following constructor
public TeacherController() : this(new TeacherRepository())
{
}
public TeacherController(ITeacherRepository teacherRepository, ITeacherService teacherService)
{
this.teacherRepository = teacherRepository;
this.teacherService = teacherService;
}
public TeacherController() : this(new TeacherRepository())
您正在调用第二个构造函数,它只需要一个参数就需要两个参数。添加默认的 TeacherService
让它编译。