exception

Visual Studio 2017 studio showing error 'This application is in break mode' and throws unhandled exception

由 橙三吉。 提交于 2020-12-30 07:58:05
问题 I am developing a Xamarin.Android app. Whenever i try to download a JSON feed I get the error "Your app has entered a break state, but there is no code to show because all threads were executing external code" . Here's the screenshot of error My json feed download code string url = "http://xamdev.epizy.com/getData1.php"; public async void downloadJsonFeedAsync(String url) { var httpClient = new HttpClient(); Task<string> contentsTask = httpClient.GetStringAsync(url); // await! control returns

Can I disable checking for zero division every time the division happens?

由 生来就可爱ヽ(ⅴ＜●) 提交于 2020-12-30 06:17:26
问题 In order to better understand Rusts panic/exception mechanisms, I wrote the following piece of code: #![feature(libc)] extern crate libc; fn main() { let mut x: i32; unsafe { x = libc::getchar(); } let y = x - 65; println!("{}", x); let z = 1 / y; println!("{}", z); } I wanted to check how Rust deals with division by zero cases. Originally I assumed it was either taking an unhandled SIGFPE to the face and dying or it implemented a handler and rerouted it to a panic (which can be dealt with

Troubleshooting “Related Field has invalid lookup: icontains”

由 主宰稳场 提交于 2020-12-27 08:20:08
问题 I have the following models in models.py : class ListinoTraduttore(models.Model): traduttore = models.ForeignKey('Traduttore', related_name='Traduttore') linguaDa = models.ForeignKey(Lingua, related_name = "linguaDa") linguaA = models.ForeignKey(Lingua, related_name = "linguaA") prezzoParola = models.CharField(max_length=50, blank=True) prezzoRiga = models.CharField(max_length=50, blank=True) scontoCat = models.CharField(max_length=50, blank=True) scontoFuzzy = models.CharField(max_length=50,

SonarQube: (Catch a list of specific exception subtypes instead)

由 为君一笑 提交于 2020-12-27 06:40:46
问题 I have a question about generic exceptions. How would we know which non-generic exception to use when you have a try that does multiple things. For example: @PostConstruct protected void init() { try { HttpSession session = request.getSession(); String policyInfo = (String) session.getAttribute("policyInfo"); if(session.getAttribute("faxNumber") != null) { faxNumber = (String) session.getAttribute("faxNumber"); } policyNumber = (String) session.getAttribute("policyNumber"); JSONObject

Python exception - how does the args attribute get automatically set?

由 百般思念 提交于 2020-12-26 06:38:10
问题 Suppose I define the following exception: >>> class MyError(Exception): ... def __init__(self, arg1): ... pass Then I instantiate the class to create an exception object: >>> e = MyError('abc') >>> e.args ('abc',) Here how is the args attribute getting set? (In the __init__ , I am doing nothing.) 回答1: args is implemented as a data descriptor with __get__ and __set__ methods. This takes place inside BaseException.__new__ like @bakatrouble mentioned. Among other things, what happens inside

Java Socket实战之三 传输对象

由 ☆樱花仙子☆ 提交于 2020-12-24 05:33:46
本文地址： http://blog.csdn.net/kongxx/article/details/7259827 Java Socket实战之一 单线程通信 Java Socket实战之二 多线程通信 前面两篇文章介绍了怎样建立Java Socket通信，这一篇说一下怎样使用Java Socket来传输对象。 首先需要一个普通的对象类，由于需要序列化这个对象以便在网络上传输，所以实现java.io.Serializable接口就是必不可少的了，入下： package com.googlecode.garbagecan.test.socket.sample3; public class User implements java.io.Serializable { private static final long serialVersionUID = 1L; private String name; private String password; public User() { } public User(String name, String password) { this.name = name; this.password = password; } public String getName() { return name; } public void setName

dotnet core 3.1 windows service fails to load configuration settings

由 给你一囗甜甜゛ 提交于 2020-12-16 03:42:20
问题 I've run into a problem with a dotnet core 3.1 application that's designed to run as a windows service. The project originates from the Worker Service template in VS2019. Below is the call stack logged into the system event log. I can't find anything on SO or via web search. If I execute the application directly (double-click) or from a command line it runs fine. The exception is only thrown when executed as a windows service. Description: The process was terminated due to an unhandled

dotnet core 3.1 windows service fails to load configuration settings

由 风流意气都作罢 提交于 2020-12-16 03:41:09
问题 I've run into a problem with a dotnet core 3.1 application that's designed to run as a windows service. The project originates from the Worker Service template in VS2019. Below is the call stack logged into the system event log. I can't find anything on SO or via web search. If I execute the application directly (double-click) or from a command line it runs fine. The exception is only thrown when executed as a windows service. Description: The process was terminated due to an unhandled

How to use UseExceptionHandler in the mvc startup without redirecting the user?

由 两盒软妹~` 提交于 2020-12-15 03:42:56
问题 I have a ASP.NET Core 2.1 MVC application, and I'm trying to return a separate html view when an exception occurs. The reason for this is that if there are errors, we don't want google to register the redirects to the error page for our SEO (I've omitted development settings to clear things up). Our startup contained this: app.UseExceptionHandler("/Error/500"); // this caused a redirect because some of our middleware. app.UseStatusCodePagesWithReExecute("/error/{0}"); But we want to prevent a

Spring-boot handle NoHandlerException in @ControllerAdvice

由 旧时模样 提交于 2020-12-12 05:16:28
问题 I want to handle NoHandlerException in Springboot app and return a custom error message. I added following to my application.properties and tried to override the error message. spring.mvc.throw-exception-if-no-handler-found=true spring.resources.add-mappings=false Error doesn't hit the @ControllerAdvice... It is handled in defaulthandlerexceptionresolver . Any ideas? 回答1: Putting @Order(Ordered.HIGHEST_PRECEDENCE) and @ControllerAdvice on the exceptions handler head, it means:
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