无法在 .Net Core Rest Api 中发出发布请求

Question

我在Meeting.cs有这个模型：

    public class Meeting
    {
        public string Id { get; set; }
        [DataType(DataType.Time)]
        public TimeSpan Start_time { get; set; }
        [DataType(DataType.Time)]
        public TimeSpan End_time { get; set; }
        [DataType(DataType.Date)]
        public DateTime Date { get; set; }
        [Required]
        [Url]
        public string Url { get; set; }
        [RegularExpression(@"^[(a-zA-Z)' '(a-zA-Z)]*$",
         ErrorMessage = "Characters are not allowed.")]
        public string Owner { get; set; }
        [RegularExpression(@"^[(a-zA-Z)' '(a-zA-Z)]*$",
         ErrorMessage = "Characters are not allowed.")]
        public string Participant { get; set; }
    }

在InitialMigration.cs 中看起来像这样：

        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "meetings",
                columns: table => new
                {
                    Id = table.Column<string>(type: "text", nullable: false),
                    Start_time = table.Column<TimeSpan>(type: "interval", nullable: false),
                    End_time = table.Column<TimeSpan>(type: "interval", nullable: false),
                    Date = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
                    Url = table.Column<string>(type: "text", nullable: false),
                    Owner = table.Column<string>(type: "text", nullable: true),
                    Participant = table.Column<string>(type: "text", nullable: true)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_meetings", x => x.Id);
                });
        }

MeetingsController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using WebApplication2.DataAccess;
using WebApplication2.Models;

namespace WebApplication2.Controllers
{
    [Route("api/Meetings")]
    public class MeetingsController : ControllerBase
    {
        private readonly IDataAccessProvider _dataAccessProvider;

        public MeetingsController(IDataAccessProvider dataAccessProvider)
        {
            _dataAccessProvider = dataAccessProvider;
        }

        [HttpGet]
        public IEnumerable<Meeting> Get()
        {
            return _dataAccessProvider.GetMeetingRecords();
        }

        [HttpPost]
        public IActionResult Create([FromBody] Meeting meet)
        {
            if (ModelState.IsValid)
            {
                Guid obj = Guid.NewGuid();
                meet.Id = obj.ToString();
                _dataAccessProvider.AddMeetingRecord(meet);
                return Ok();
            }
            return BadRequest();
        }

        [HttpGet("{id}")]
        public Meeting Details(string id)
        {
            return _dataAccessProvider.GetMeetingSingleRecord(id);
        }

        [HttpPut]
        public IActionResult Edit([FromBody] Meeting meet)
        {
            if (ModelState.IsValid)
            {
                _dataAccessProvider.UpdateMeetingRecord(meet);
                return Ok();
            }
            return BadRequest();
        }

        [HttpDelete("{id}")]
        public IActionResult DeleteConfirmed(string id)
        {
            var data = _dataAccessProvider.GetMeetingSingleRecord(id);
            if (data == null)
            {
                return NotFound();
            }
            _dataAccessProvider.DeleteMeetingRecord(id);
            return Ok();
        }
    }
}

如何解决这个问题？

但我的 JSON 数据似乎无效，我不明白为什么。 date 可能有问题？我应该用什么格式写时间和日期？

但我的 JSON 数据似乎无效，我不明白为什么。 date 可能有问题？我应该用什么格式写时间和日期？

Answer 1

在我的测试中，我根本找不到任何错误，但我知道您的日期格式有问题。尝试将新属性添加到您的会议类：

[NotMapped]
public string StrDate { get; set; }

并使用此名称作为您的字符串日期：

{ "strdate": "10/19/2021", "start_time": "19:23:23","end_time": "20:23:23", "url": "https://blog.reedsy.com/writing-apps/#11__hemingway", "owner": "Michael KKK", "participant": "John PPP" }

将您的数据洞察转化为您的行动：

         [HttpPost]
        public IActionResult Create([FromBody] Meeting meet)
        {
        
            if (ModelState.IsValid)
            {
                var arrDate = meet.StrDate.Split('/');
                Guid obj = Guid.NewGuid();
                meet.Date = new DateTime(year: Convert.ToInt32(arrDate[2]), month: Convert.ToInt32(arrDate[0]), day: Convert.ToInt32( arrDate[1]));
                meet.Id = obj.ToString();
                
                return Ok(meet);
            }
            return BadRequest();
        }