You could use the AsyncClient() from the httpx library, as described in this answer, as well as this answer and this answer (have a look at those answers for more details on the approach demonstrated below). You can spawn a Client inside the startup event handler, store it on the app instance—as described here, as … Read more
A proper forward declaration is simply: class Level; Note the lack of curly braces. This tells the compiler that there’s a class named Level, but nothing about the contents of it. You can then use pointers (Level *) and references (Level &) to this undefined class freely. Note that you cannot directly instantiate Level since … Read more
The difference between the two tags is that the way they work. Well, I will say an example so that you can imagine it better. Assume you have two pages, pageA, and pageB. In pageA you wrote the include tag. In this case the control was in pageA til you called the include tag. At … Read more
To simply explain the difference, response.sendRedirect(“login.jsp”); doesn’t prepend the contextpath (refers to the application/module in which the servlet is bundled) but, whereas request.getRequestDispathcer(“login.jsp”).forward(request, response); will prepend the contextpath of the respective application Furthermore, Redirect request is used to redirect to resources to different servers or domains. This transfer of control task is delegated to the … Read more
The simplest way is to add the data to the request. Since this is a forward, the same request is passed around to different handlers within the server. As example, let’s start with a simple setup of two controllers, one forwarding to the other: @Controller public class TestController { @RequestMapping(value=”/test”) public String showTestPage() { return … Read more
Don’t pass the results to printf. pass them to vprintf. vprintf specifically exists to handle passing in va_list arguments. From the Linux man page: #include <stdio.h> int printf(const char *format, …); int fprintf(FILE *stream, const char *format, …); int sprintf(char *str, const char *format, …); int snprintf(char *str, size_t size, const char *format, …); #include … Read more
As of the LLVM Compiler version shipped with Xcode 4.3, if you try to call a method that the compiler has not previously seen, it will look in the rest of the current @implementation block to see if that method has been declared later. If so, then it uses that, and you don’t get a … Read more
redirect sets the response status to 302 [1], and the new url in a Location header, and sends the response to the browser. Then the browser, according to the http specification, makes another request to the new url forward happens entirely on the server. The servlet container just forwards the same request to the target … Read more
First of all, the term “redirect” is in web development world the action of sending the client an empty HTTP response with just a Location header with therein the new URL on which the client has to send a brand new GET request. So basically: Client sends a HTTP request to somepage.xhtml. Server sends a … Read more
In the web development world, the term “redirect” is the act of sending the client an empty HTTP response with just a Location header containing the new URL to which the client has to send a brand new GET request. So basically: Client sends a HTTP request to some.jsp. Server sends a HTTP response back … Read more