infinite-loop

问题 I want to build a headless application which will query the DB in infinite loop and perform some operations in certain conditions (e.g. fetch records with specific values and when found launch e-mail sending procedure for each message). I want to use Spring Boot as a base (especially because of Actuator to allow expose health-checks), but for now I used Spring Boot for building REST web-services. Is there any best practices or patterns to follow when building infinite loop applications ? Does

问题 I want to build a headless application which will query the DB in infinite loop and perform some operations in certain conditions (e.g. fetch records with specific values and when found launch e-mail sending procedure for each message). I want to use Spring Boot as a base (especially because of Actuator to allow expose health-checks), but for now I used Spring Boot for building REST web-services. Is there any best practices or patterns to follow when building infinite loop applications ? Does

问题 Though I know it'll be a bit silly to ask, still I want to inquire more about the technical perspective of it. A simple example of an infinite loop: public class LoopInfinite { public static void main(String[] args) { for (;;) { System.out.println("Stack Overflow"); } } } How can I interrupt (stop) this infinite loop from outside of this class (e.g., with the help of inheritance)? 回答1: I feel dirty even writing this, but... From a different thread, you could call System.setOut() with a

问题 I'm programming a game and in the program I need to add new enemies based off of a file. Right now my problem is that I've run into an infinite while loop when trying to read this file. I'm relatively new to programming so I'm not exactly sure how to fix this. Here is the problem code. An example of how the entry in the file looks is: "Troll,6,4,1". Thank you for your help. try { Scanner input = new Scanner(new File(filename)); while(input.hasNext()); { input.useDelimiter(",|\n"); String name

问题 I retrieve a list of Brothers using hibernate public class Brother { public int brotherId; public string name; public List<Brother> brothers; public Brother() { brothers = new ArrayList<Brother>(); } //Getter Setter } Hibernate is configured using lazy select in brothers list, this in Java side works, But the problem is when I want to serialize a Brother object to JSON. I've got org.codehaus.jackson.map.JsonMappingException: Infinite recursion (StackOverflowError) for Example Bryan can have

问题 This question already has an answer here : Servlet filter runs in infinite redirect loop when user is not logged in (1 answer) Closed last year . I want to implement a filter to do the authentication, but somehow it is stuck in infinite loop... Any idea appreciated. HttpServletRequest httpRequest = (HttpServletRequest) request; HttpServletResponse httpResponse = (HttpServletResponse) response; doBeforeProcessing(request, response); Throwable problem = null; HttpSession session = httpRequest

问题 So as you may be able to tell from my attempt, I'm trying to figure out how I'd make a program which gives the user 5 seconds to enter some lines of text, then the Scanner will count how many lines were entered. I've just started learning Java as my 2nd language, so please try to explain everything as simply as possible :) I've got two theories as to why it's not working. The first is that nextLine() will return the whole line, regardless of whether it's empty or not meaning rather than NL

问题 This question already has answers here : Infinite loop with cin when typing string while a number is expected (4 answers) Closed 3 years ago . do { cout << "Enter the numerator and denominator of the first fraction: "; cin >> a >> b; cout << endl; cout << "Enter the numerator and denominator of the second fraction: "; cin >> c >> d; cout << endl; } while (!validNum(a, b, c, d)); ... bool validNum(int num1, int num2, int num3, int num4) { if (cin.fail() || num2 == 0 || num4 == 0) { if (num2 ==

问题 I have a simple C++ code to test and understand threading. The code has the main thread + a secondary thread. The secondary updates the value of a variable which the main thread loop depends on. When I add a print statement inside the main loop the program finishes successfully, but when I remove this print statement it goes into an infinite loop. This is the code that I'm using, and the print statement that I'm referring to is print statement 2 #include <mpi.h> #include <iostream> #include

问题 i am trying to create a loop of text animations over a slider... i tried loop but it didnt work.. Can you please tell me how do i loop this script forever..thanks <script> $(document).ready(function() { $("#header").hide(); var headerOne='I'; var headerTwo='Am'; var headerThree='So'; var headerFour='Cool'; $("#header").html(headerOne); $("#header").fadeIn(1000); $('#header').delay(1000).fadeOut(1000,function(){ $(this).html(headerTwo).fadeIn(1000); $('#header').delay(1000).fadeOut(1000