post与.net core接受请求参数

///ffff

  const res = await instancs.post(
    "Know/DocList_Insert",
    {
      Id: 1,
      Name: "酷酷酷酷酷",
      ClientId: 1,
      EqId: 1,
    },
    { headers: { "Content-Type": "application/form-data" } }
  );
  console.log("res:", res);
};
后端

 [HttpPost("DocList_Insert")]
        public String DocList_Insert()
        {
            Debug.WriteLine("基础文档查找");
            using (var ctx = new MyDbContext())
            {
                var knowType = new KnowType {Type="doc", Name = "2", ClientId= 1, EqId= 1 };
                ctx.KnowType.Add(knowType);
                ctx.SaveChanges();
                return "200";//return 所有数据
            }
        }

修改后：

[HttpPost("DocList_Insert")]
public String DocList_Insert([FromForm] dataForm data)
{
Debug.WriteLine("基础文档查找");
using (var ctx = new MyDbContext())
{
Debug.WriteLine("插入数据:{0}",data);
var knowType = new KnowType {Type= data.Type, Name = data.Name, ClientId= data.ClientId, EqId= data.EqId };
ctx.KnowType.Add(knowType);
ctx.SaveChanges();
return "200";//return 所有数据
}
}
public class dataForm
{
public int ClientId { get; set; }
public int EqId { get; set; }
public string Name { get; set; }
public string Type { get; set; }
}

报错400原因是前端的请求头写错了
错误：{ headers: { "Content-Type": "application/form-data" } }

正确：{ headers: { "Content-Type": "multipart/form-data" } }