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RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()
...e (e.g. validation, business logic, login the user, etc).
If there are any errors, then you normally want to forward the request back to the same page and display the errors there next to the input fields and so on. You can use the RequestDispatcher for this.
If a POST is successful, you normally wa...
How to list active / open connections in Oracle?
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Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action:
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There is already an open DataReader associated with this Command which must be closed first
I have this query and I get the error in this function:
18 Answers
18
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How to avoid “cannot load such file — utils/popen” from homebrew on OSX
I'm getting an error when I run brew in the terminal:
9 Answers
9
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How do I find where an exception was thrown in C++?
...location of the exception.
Note: I say may because C++ supports non-local error handling through the use of language constructs to separate error handling and reporting code from ordinary code. The catch block can be, and often is, located in a different function/method than the point of throwing....
Install Windows Service created in Visual Studio
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I am getting the same error in VS2013. I checked the links you provided, verified that I have ProjectInstaller, including the components service[Process]Installer1, properly configured. I run installutil.exe as Administrator. It still reports "No ...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
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raise, fail, rescue, and ensure handle errors, also known as exceptions
throw and catch are control flow
Unlike in other
languages, Ruby’s throw and catch are not used for exceptions.
Instead, they provide a way to terminate execution early when no
fu...
What is the difference between javac and the Eclipse compiler?
... code that didn't actually properly compile. If the block of code with the error is never ran, your program will run fine. Otherwise, it will throw an exception indicating that you tried to run code that doesn't compile.
Another difference is that the Eclipse compiler allows for incremental builds...
How to set timeout for http.Get() requests in Golang?
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What happens when the timeout hits? Does Get return an error? I’m a little confused because the Godoc for Client says: The timer remains running after Get, Head, Post, or Do return and will interrupt reading of the Response.Body. So does that mean that either Get or reading Res...
Check if object is file-like in Python
..., rather than just using it as if it was a file and handling the resulting error?
Any check you can do is going to happen at runtime anyway so doing something like if not hasattr(fp, 'read') and raising some exception provides little more utility than just calling fp.read() and handling the result...