用线程实现刷新表

Question

I'm doing a Swing application where in one of its forms, I have a table which I want to update periodically. I first thought of using a Timer , but the task may be time consuming and it may freeze the GUI. Then, I thought of using a SwingWorker , but it is designed to be executed once, and I need to execute this task periodically (every two or three minutes) while the form is open.

In this form's code I have implemented three methods: acceptNew() , which runs a quick UPDATE query, listRequests() , which runs some queries to fill an ArrayList with all the records; and manipulateTable() , which compares the table model with the ArrayList and updates/inserts the records.

In short, acceptNew() does a quick task, listRequests() does another task which its completion time depends of the number of records in the DB, and manipulateTable() updates the GUI. I need to call these three methods periodically without freezing the GUI.

Answer 1

You can use SwingWorker's publish to emit the new state of listRequests() that you call manipulateTable() in the process method and sleep inbetween.

Or just create and submit a new SwingWorker that updates it once every time from a Timer.