网站免费打包,简洁网站倒计时代码,网页设计实验报告实验1,昆明网站建设ynmdwl我有一个表从我的本地MySQL服务器获取信息.它很好地读取数据并将其发布在GUI上.我的问题是,当我更改table命令时,如何刷新表格,例如#xff1a;private String sql select * from profildb.tbl_detailed; //toprivate String sql select * from profildb.…我有一个表从我的本地MySQL服务器获取信息.它很好地读取数据并将其发布在GUI上.我的问题是,当我更改table命令时,如何刷新表格,例如private String sql select * from profildb.tbl_detailed; //toprivate String sql select * from profildb.tbl_detailed where Y..; //this此操作将在我的Button Action Listener中处理;JButton btnOK new JButton();btnOK.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent arg0) {if( (tfBirinci.getText().isEmpty() || tfBirinci.getText() null) (tfIkinci.getText().isEmpty() || tfIkinci.getText() null )){taLog.setText(Database alani bos birakilamaz...\n);}else if ( (!(tfBirinci.getText().isEmpty() )) (tfIkinci.getText().isEmpty() || tfIkinci.getText() null ) ){sql (SELECT * FROM tfBirinci.getText());taLog.setText(Komut elde edildi : sql \n);System.out.println(aaaa tfBirinci.getText());//anaFrame.dispose();//databaseHistoryCalistir(); doesnt work}else if ( ( !(tfBirinci.getText().isEmpty() ) !(tfBirinci.getText() null) ) ( !(tfIkinci.getText().isEmpty() ) !(tfBirinci.getText() null) ) ){sql (SELECT * FROM tfBirinci.getText() WHERE tfIkinci.getText());taLog.setText(Komut elde edildi : sql \n );System.out.println(bbbb tfBirinci.getText());//anaFrame.dispose();//databaseHistoryCalistir(); doesnt work}elsetaLog.setText(Lütfen Database alanini doldurunuz, aksi taktirde komut elde edilemez...\n);}});那么,当我更改字符串的语句时,我需要实现什么才能更新表提前致谢. (给出一个关于DefaultTableModel的例子会很棒)解决方法:2)使用ResultsetTableModel之一3)从Runnable #Thread调用SQL语句,但输出到XxxTableModel必须在invokeLater内部,更多在Concurency in Swing中关于事件调度线程(EDT)4)从SwingWorker调用SQL语句,然后从progress(),publish()或done()输出应该在EDT上5)DefaultTableModel不需要覆盖方法fireXxxTableXxx,所有这些都正确实现6)来自数据库(ResultsetTableModel)和Runnable #Thread(SwingWorker)的逻辑表之间的区别是数据库表(ResultsetTableModel)调用EDT上的所有更新,然后GUI等待所有事件完成,从数据库加载数据期间GUI不负责任或冻结 Runnable #Thread(SwingWorker)所有更新都来自backgourng任务,GUI可用于鼠标和键盘事件,标签java,mysql,swing,jtable,defaulttablemodel来源 https://codeday.me/bug/20190630/1332781.html
