处理错误ASP.NET Web API

2 回答

• 0

  尝试以下代码

  public class DataController : ApiController
              {
                  [HttpGet]
                  public HttpResponseMessage Getdetails(string id,DateTime date_in)
                  {
                      if(id==string.Empty || id==null)
                      {
                        return "Id Value Should not Empty or Null";
                      }
                      if(!Regex.IsMatch(date_in, "^(([0-9])|([0-2][0-9])|([3][0-
                      1]))\-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\-
                      \d{4}$"))
                      {
                        return "Invalid Date Format";
                      }
                      List<OracleParameter> prms = new List<OracleParameter>();
                      prms.Add(new OracleParameter("id", OracleDbType.Varchar2,
                      id, ParameterDirection.Input));
                      prms.Add(new OracleParameter("date_in", OracleDbType.Date, date_in, ParameterDirection.Input));
                         string connStr = ConfigurationManager.ConnectionStrings["DtConnection"].ConnectionString;
                      using (OracleConnection dbconn = new OracleConnection(connStr))
                      {
                          DataSet userDataset = new DataSet();
                          var strQuery = "SELECT * from SAMPLE where id = :id and date_in = :date_in ";
                          var returnObject = new { data = new OracleDataTableJsonResponse(connStr, strQuery, prms.ToArray()) };
                          var response = Request.CreateResponse(HttpStatusCode.OK, returnObject, MediaTypeHeaderValue.Parse("application/json"));
                          ContentDispositionHeaderValue contentDisposition = null;
                          if (ContentDispositionHeaderValue.TryParse("inline; filename=TGSData.json", out contentDisposition))
                          {
                              response.Content.Headers.ContentDisposition = contentDisposition;
                          }
                          return response;
              }
              }
  

  回复于 2024-05-05T11:39:10+08:00
• 0

  我们可以扩展ExceptionFilterAttribute并创建自定义异常过滤器属性 .

  public class CustomExceptionFilterAttribute : ExceptionFilterAttribute
  {
      public override void OnException(HttpActionExecutedContext context)
      {
          var exception = context.Exception; 
          context.Response = new HttpResponseMessage(System.Net.HttpStatusCode.InternalServerError);
          context.Response.Content = new StringContent(exception.Message);
      }
  }
  

  并在ApiController中使用它来返回vliadation消息 .

  [HttpGet]
  [CustomExceptionFilterAttribute]
  public HttpResponseMessage Getdetails(string id, DateTime date_in)
  {
          if (string.IsNullOrEmpty(id))
          {
              throw new ArgumentNullException("id");
          }
          //...
  }
  

  回复于 2024-05-05T11:39:10+08:00