scheduled-tasks

问题 This question already has answers here : How to run a background task in a servlet based web application? (5 answers) Closed 2 years ago . I have developed a web application using using servlet and JSP. I am not using any framework per se, instead using my own home brewed MVC framework. I am using MySQL as a backend. I want to do the following: Clean up some data from the data base every hour Generate and store statistics about data every 15 minutes in an XML file somewhere The problem is:

问题 I have a batch (*.bat) file that triggers a Python script and this script takes about 25 minutes to complete interactivly (through command prompt manuallly). This batch file needs to run in the morning on a daily basis. When I tried to set it as a Scheduled Task on Windows Task Scheduler and ran it there, it took nearly double the time than it did interactively. Even if I set the Priority settings from the default 7 to 4 (higher priority) in the xml, it didn't make any differnce. Changing the

问题 I have asked this Before i know.. but i cant get a straight answer and can't find a good one on google either. I want to send a Toast Notification to the user once a day, if some requirements are met, otherwise check the next day. I have a SQLite db that i check against. I have a Background Task that should work but it checks as soon as i start the app but never again.. its really hard to debug this as well.. :/ I have this: public async void RegisterBackgroundTask() { var tommorowMidnight =

问题 I have a php file which pulls some data from external API's, and I want to schedule it to do so every few hours (or every few days). Some googleing led me to "scheduled tasks", but it seems I need to be running my own server to do it? So far, all the PHP and MySQL I've done have been very simple form-filling, so I'm a little lost. Do I need to turn a computer into a server to do this, or should I look into hosts that allow you to run scripts? I'm not exactly sure what I'm looking for. Side

问题 I have search & searched MSDN to find the definition of the HRESULT error with the value 80041318 but I cannot find it. I am working in C++ Win32 attempting to schedule a task that will execute when the current user logs in. The function RegisterTaskDefinition() fails & returns this value. Does anyone know what this error means & if possible does anyone know of the MSDN link to ALL the HRESULT ERRORS? I can find one link that has definitions of 7 errors. 回答1: The Microsoft Exchange Server

问题 I use the following annotation to call a stateless session bean once a 5 minutes: @Schedule(second = "0", minute = "0/5", hour = "*") I works as expected, except it stops itself after a few days. I guess there may be a default lifetime and I do not know how to override it. Please help me to configure the scheduler to run indefinitely. 回答1: to know if there is expiration date for your object you can use getTimers() to return an object of that timer then use this method getTimeRemaining() to

问题 I thought no matter what OS you had, if you had Powershell installed, you would have access to the same default cmdlets. So I want to use Get-ScheduledTask on my Windows 7 machine. I have Powershell 4 installed. However, when I run it, I get the error: Get-ScheduledTask : The term 'Get-ScheduledTask' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At

问题 I have two browser tabs running monitoring applications on a screen. I want to automate switching between tabs after lets say every 2 mins. I think this can be achieved by creating a scheduled task in windows which execute a batch file every 2 mins. Batch file will switch the tab. I need help creating such batch file. Thanks. 回答1: You can use VBScript to do that, Example for IE : Create a file Switch.vbs with this : Set WshShell = WScript.CreateObject("WScript.Shell") WshShell.AppActivate

问题 I want to schedule a python script to start at 3AM and break at 5PM every weekday. However the problem arises when I need to start virtualenv as all the packages are install in a virtual environment. I can get it to run at a specific time, however I can't activate the virtual environment (I'd normally type "env\scripts\activate"). Here is what my action looks like: Any idea on how I can incorporate activating virtualenv and what my action should looks like to break the script? Thanks 回答1:

问题 Is it possible to repeatedly execute a task each day, each minute, each second, each year? I want it to run like a daemon. I need a scheduled task to search the database continuously; if it finds a certain value then it should execute a further task. 回答1: I want to ask whether it is possible to repeatedly You can use a loop, or a ScheduleExecutorService, or a Timer, or Quartz. each day each minute each second each year So once a second. I want it to run like a daemon. I would just make it a