2019年1月 – 我的部落格

 //异常全局处理
 app.UseExceptionHandler(new ExceptionHandlerOptions()
 {
     ExceptionHandler = async context =>
     {
         var errorFeature = context.Features.Get<Microsoft.AspNetCore.Diagnostics.IExceptionHandlerFeature>();
         var ex = errorFeature.Error;
         var excetpmsg = errorFeature.Error.Message;
         //1，如果时ajax请求，有异常时返回错误消息
         //2，不是js中发起的请求，重定向到错误页
         if (context.Request.IsAjaxRequest())
         {
             context.Response.ContentType = "application/json";
             //var json = Newtonsoft.Json.JsonConvert.SerializeObject(new { code = context.Response.StatusCode, message = excetpmsg });
             logger.LogInformation($"Starup ExceptionHandler Error Info:{Activity.Current?.Id ?? context.TraceIdentifier},{excetpmsg},{errorFeature.Error.StackTrace}");
             await context.Response.WriteAsync(excetpmsg);
             return;
         }
         else
         {
             #region 跳转到错误页。参数可通过QueryString传递，但无法通过form传递，暂未找到通过MVC方式通过RouteData方式传递
             //string url = QueryHelpers.AddQueryString("/Home/Error",
             //            new Dictionary<string, string>() {
             //                { "StatusCode", context.Response.StatusCode.ToString() },
             //                { "ExceptionMessage", excetpmsg } }
             //            );
             //ErrorViewModel errorViewModel = new ErrorViewModel();
             //errorViewModel.RequestId = Activity.Current?.Id ?? context.TraceIdentifier;
             //errorViewModel.ExceptionMessage = excetpmsg;
             //await context.Response.WriteAsync(Newtonsoft.Json.JsonConvert.SerializeObject(excetpmsg));

             //Dictionary<string, Microsoft.Extensions.Primitives.StringValues> keyValuePairs =
             //            new Dictionary<string, Microsoft.Extensions.Primitives.StringValues>();
             //keyValuePairs.Add("StatusCode", context.Response.StatusCode.ToString());
             //keyValuePairs.Add("ExceptionMessage", excetpmsg);
             //FormCollection exFormParam = new FormCollection(keyValuePairs);
             //context.Request.Form = exFormParam; 
             #endregion

             logger.LogInformation($"Starup ExceptionHandler Error Info:{Activity.Current?.Id ?? context.TraceIdentifier},{excetpmsg},{errorFeature.Error.StackTrace}");
             context.Response.Redirect("/Home/Error");
         }
     }
 });

//异常全局处理

app.UseExceptionHandler(new ExceptionHandlerOptions()

{

ExceptionHandler = async context =>

{

var errorFeature = context.Features.Get<Microsoft.AspNetCore.Diagnostics.IExceptionHandlerFeature>();

var ex = errorFeature.Error;

var excetpmsg = errorFeature.Error.Message;

//1，如果时ajax请求，有异常时返回错误消息

//2，不是js中发起的请求，重定向到错误页

if (context.Request.IsAjaxRequest())

{

context.Response.ContentType = "application/json";

//var json = Newtonsoft.Json.JsonConvert.SerializeObject(new { code = context.Response.StatusCode, message = excetpmsg });

logger.LogInformation($"Starup ExceptionHandler Error Info:{Activity.Current?.Id ?? context.TraceIdentifier},{excetpmsg},{errorFeature.Error.StackTrace}");

await context.Response.WriteAsync(excetpmsg);

return;

}

else

{

#region 跳转到错误页。参数可通过QueryString传递，但无法通过form传递，暂未找到通过MVC方式通过RouteData方式传递

//string url = QueryHelpers.AddQueryString("/Home/Error",

// new Dictionary<string, string>() {

// { "StatusCode", context.Response.StatusCode.ToString() },

// { "ExceptionMessage", excetpmsg } }

// );

//ErrorViewModel errorViewModel = new ErrorViewModel();

//errorViewModel.RequestId = Activity.Current?.Id ?? context.TraceIdentifier;

//errorViewModel.ExceptionMessage = excetpmsg;

//await context.Response.WriteAsync(Newtonsoft.Json.JsonConvert.SerializeObject(excetpmsg));

//Dictionary<string, Microsoft.Extensions.Primitives.StringValues> keyValuePairs =

// new Dictionary<string, Microsoft.Extensions.Primitives.StringValues>();

//keyValuePairs.Add("StatusCode", context.Response.StatusCode.ToString());

//keyValuePairs.Add("ExceptionMessage", excetpmsg);

//FormCollection exFormParam = new FormCollection(keyValuePairs);

//context.Request.Form = exFormParam;

#endregion

logger.LogInformation($"Starup ExceptionHandler Error Info:{Activity.Current?.Id ?? context.TraceIdentifier},{excetpmsg},{errorFeature.Error.StackTrace}");

context.Response.Redirect("/Home/Error");

}

});

string jsonstr = "{\"param1\":\"vlue1\",\"param2\":18,\"parma3\":25}";
Newtonsoft.Json.Linq.JObject jObject = Newtonsoft.Json.Linq.JObject.Parse(jsonstr);

Dictionary<string, string> keyValuePairs = jObject.Properties().Select(x => {
                                                                              return new KeyValuePair<string, string>(x.Name.ToString(), x.Value?.ToString());
                                                                            }
                                                                        )
                                                                        .ToDictionary((keyItem) => keyItem.Key, (valueItem) => valueItem.Value);
string url = QueryHelpers.AddQueryString("/a/b", keyValuePairs);//Microsoft.AspNetCore.WebUtilities包

string jsonstr = "{\"param1\":\"vlue1\",\"param2\":18,\"parma3\":25}";

Newtonsoft.Json.Linq.JObject jObject = Newtonsoft.Json.Linq.JObject.Parse(jsonstr);

Dictionary<string, string> keyValuePairs = jObject.Properties().Select(x => {

return new KeyValuePair<string, string>(x.Name.ToString(), x.Value?.ToString());

}

)

.ToDictionary((keyItem) => keyItem.Key, (valueItem) => valueItem.Value);

string url = QueryHelpers.AddQueryString("/a/b", keyValuePairs);//Microsoft.AspNetCore.WebUtilities包

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