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RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()
...tcher("/WEB-INF/login.jsp").forward(request, response);
When you submit a form, you normally want to use POST:
<form action="login" method="post">
This way the servlet's doPost() will be invoked and you can do any postprocessing stuff in there (e.g. validation, business logic, login the user...
Why are floating point numbers inaccurate?
...ore detail, see: 675539944105574 / 4503599627370496.)
Now that we've transformed the third component into a fractional number, adding 1 gives the true mantissa.
Recapping the Components
Sign (first component): 0 for positive, 1 for negative
Exponent (middle component): Subtract 2(# of bits) - 1 ...
Do I have to guard against SQL injection if I used a dropdown?
I understand that you should NEVER trust user input from a form, mainly due to the chance of SQL injection.
11 Answers
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How to install Android SDK Build Tools on the command line?
...<code> # update Android SDK on headless server FILTER=tool,platform,android-20 ( sleep 5 && while [ 1 ]; do sleep 1; echo y; done ) \ | android update sdk --no-ui --all \ --filter ${FILTER} </code></pre>
– i4niac
Aug 27 '14 at...
Logging raw HTTP request/response in ASP.NET MVC & IIS7
... the requests and response in as close as possible to the raw, on-the-wire format (i.e including HTTP method, path, all headers, and the body) into a database.
...
How to get the number of Characters in a String?
...unes.
For example, an 'e' and '◌́◌́' (acute "\u0301") can combine to form 'é' ("e\u0301" in NFD). Together these two runes are one character.
The definition of a character may vary depending on the application.
For normalization we will define it as:
a sequence of runes that starts with ...
What characters do I need to escape in XML documents?
...ortium (w3C), there are 5 characters that must not appear in their literal form in an XML document, except when used as markup delimiters or within a comment, a processing instruction, or a CDATA section. In all the other cases, these characters must be replaced either using the corresponding entity...
Do browsers send “\r\n” or “\n” or does it depend on the browser?
...lue is read through JavaScript rather than being submitted directly from a form, browser behaviour differs. IE and Opera return strings with CRLFs in; Firefox and WebKit return LF. So any form that gets submitted with JavaScript/XMLHttpRequest help is likely to come in either form.
...
Javascript object Vs JSON
...e difference between the 2 (JS obj and JSON)?
JSON is a data interchange format. It's a standard which describes how ordered lists and unordered maps, strings booleans and numbers can be represented in a string. Just like XML and YAML is a way to pass structured information between languages, JSON...
Is the NOLOCK (Sql Server hint) bad practice?
...rflow, I was against NOLOCK on the principal that you could potentially perform a SELECT with NOLOCK and get back results with data that may be out of date or inconsistent. A factor to think about is how many records may be inserted/updated at the same time another process may be selecting data fro...