Question

我正在使用此网址呼叫服务：http://localhost:7951/odata/Student 但是我收到了错误

404未找到

我在哪里做错了？

我的DbContext类如下：

public class DataContext : DbContext
{ 
    public DataContext()
        : base("name=FrameworkConnStr")
    {
    }

    public DbSet<Student> Students { get; set; }
    public DbSet<StudentAddress> StudentAddresses { get; set; }
}

[Table("M_DEMIR.STUDENT")]
public partial class Student
{
    public Student()
    {
        StudentAddress = new HashSet<StudentAddress>();
    }

    [Column("ID"), Key]
    public int Id { get; set; }

    [Column("NAME", TypeName = "varchar2"), MaxLength(25)]
    public string Name { get; set; }

    [Column("SURNAME", TypeName = "varchar2"), MaxLength(50)]
    public string Surname { get; set; }

    public virtual ICollection<StudentAddress> StudentAddress { get; set; }
}

[Table("M_DEMIR.STUDENTADDRESS")]
public partial class StudentAddress
{
    [Column("ID"), Key]
    public int Id { get; set; }

    [Column("STUDENT_ID")]
    public int StudentId { get; set; }

    [Column("CITY", TypeName = "varchar2"), MaxLength(25)]
    public string City { get; set; }

    [ForeignKey("StudentId")]
    public virtual Student Student { get; set; }
}

控制器代码如下：

[EnableQuery]
public class StudentController : ODataController
{
    DataContext db = new DataContext();


    public IHttpActionResult Get()
    {
        return Ok();
    }


}

WebApiConfig代码如下：

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        var builder = new ODataConventionModelBuilder();
        builder.EntitySet<Student>("Students");
        builder.EntitySet<StudentAddress>("StudentAddresses");
        config.Routes.MapODataServiceRoute("odata", "odata", builder.GetEdmModel());
    }

我在哪里做错了？

Answer 1

[ODataRoutePrefix("Students")]
public class StudentController : ODataController
{
    DataContext db = new DataContext();

    [EnableQuery(MaxTop = 100)] // MaxTop so you can use the $top in the query string
    [ODataRoute]
    public IHttpActionResult Get()
    {
        return Ok(db.Students); // you do want to return something that can be queried
    }
}

EnableQuery应该在Get方法上。
将ODataRoute添加到Get方法。
将ODataRoutePrefix("Students")添加到您现在拥有EnableQuery

将您的网址更改为http://localhost:7951/odata/Students（已添加s）。

另外，请不要忘记通过覆盖控制器的DbContext方法来处置Dispose实例。

如何在OdataController中使用Web Api服务？

1 个答案: