exception

问题 I'm a beginner with golang, writing an XML parser. My goal is that would like to include checks for whether the xml file is formatted correctly, checking for missing brackets or misspelled words for elements and attributes. If there are missing brackets or misspelled words, the code could throw an exception informing users to correct the mistake. Let's take a concrete example of an xml file, example.xml : <?xml version="1.0" encoding="utf-8"?> <servers version="1"> <server> <model name="Cisco

问题 I have the following application setup: @SpringBootApplication @EnableTransactionManagement public class MyApp extends SpringBootServletInitializer { ... } with a class which has the following: public class DoStaff { public void doStaffOnAll(List<MyObject> myObjects) { for (int i=0; i<myObjects.size(); i++) { try { doStaffOnSingle(myObjects.get(i), i); } catch (Exception e) { e.printStrackTrace(); } } } @Transactional public void doStaffOnSingle(MyObject myObject, int i) { repository.save

问题 Im in showstopper state because of an exception in WCF. The problem is that i am randomly getting this exception in windows service in WCF. Now since i cannot debug production server so i am using log4net for logging. The exception is random in time and in different functions. it Occurs few in a day with almost 400 to 1000 db entries. Now here is my proxy class code where iam checking the client open state. public static BLLServiceClient bLLServiceClient { get { if (_bLLServiceClient == null

问题 Im in showstopper state because of an exception in WCF. The problem is that i am randomly getting this exception in windows service in WCF. Now since i cannot debug production server so i am using log4net for logging. The exception is random in time and in different functions. it Occurs few in a day with almost 400 to 1000 db entries. Now here is my proxy class code where iam checking the client open state. public static BLLServiceClient bLLServiceClient { get { if (_bLLServiceClient == null

问题 Using Postgres 11.5, I've been looking at CREATE DOMAIN since yesterday, and would like to clarify how they can/can't help with function parameters. Ideally, I'd like to use a domain to screen parameter inputs easily, but with a helpful error response. As an example, I'm using a simple first-case, a domain that blocks null and empty strings: CREATE DOMAIN text_not_empty AS text NOT NULL CHECK (value <> ''); I tried this out as a field type for a table, and it's great. When we don't allow

问题 Using Postgres 11.5, I've been looking at CREATE DOMAIN since yesterday, and would like to clarify how they can/can't help with function parameters. Ideally, I'd like to use a domain to screen parameter inputs easily, but with a helpful error response. As an example, I'm using a simple first-case, a domain that blocks null and empty strings: CREATE DOMAIN text_not_empty AS text NOT NULL CHECK (value <> ''); I tried this out as a field type for a table, and it's great. When we don't allow

问题 lately I have encountered a following problem. Azure Function that is run in Visual Studio always throws an exception: System.IO.IOException HResult=0x80131620 Message=Error loading native library "C:\Users\\AppData\Local\AzureFunctionsTools\Releases\2.16.0\cli\grpc_csharp_ext.x86.dll" Source=Grpc.Core StackTrace: at Grpc.Core.Internal.UnmanagedLibrary..ctor(String[] libraryPathAlternatives) at Grpc.Core.Internal.NativeExtension.LoadUnmanagedLibrary() at Grpc.Core.Internal.NativeExtension

问题 I am building a console application in .NET Core 2.2. I added strongly-typed configuration like this: var configuration = new ConfigurationBuilder() .SetBasePath(Directory.GetCurrentDirectory()) .AddJsonFile("appsettings.json", true) .AddCommandLine(args) .Build(); services.Configure<AppConfiguration>(configuration); My configuration is bound to an object of class AppConfiguration . I wonder, how can I catch exceptions that could happen while binding config values to my class? For example,

问题 When i try to convert a number like 1.1 to a double i get thrown a exception: "Input string was not in a correct format." I don't know why this is happening since the input i give is correct and the variable where i am converting to is a double. Below is the code: Controller create method: [ValidateAntiForgeryToken] public ActionResult Create(IFormCollection collection) { try { Riskanalysis riskanalysis = new Riskanalysis() { dateCreation = Convert.ToDateTime(collection["dateCreation"]),

问题 The output of the program below is: begin try Object() ctor begin catch Why is the Holder class's destructor not called? Is this a memory leak? Is it possible to call the Holder class's destructor without rethrowing? #include <iostream> #include <exception> class Object { public: Object() { std::cout << "Object() ctor" << std::endl; } ~Object() { std::cout << "~Object() dtor" << std::endl; } }; class Holder { public: Holder() :myObjectP( new Object() ) { throw std::exception(); } ~Holder() {