SWT入门实例

import java.sql.Connection;

 import java.sql.SQLException;

 import java.util.HashSet;

 import java.util.Set;

import org.eclipse.swt.SWT;

 import org.eclipse.swt.events.SelectionEvent;

 import org.eclipse.swt.events.SelectionListener;

 import org.eclipse.swt.widgets.Display;

 import org.eclipse.swt.widgets.Event;

 import org.eclipse.swt.widgets.Listener;

 import org.eclipse.swt.widgets.Menu;

 import org.eclipse.swt.widgets.MenuItem;

 import org.eclipse.swt.widgets.Shell;

import com.cloudwave.jdbc.CloudStatement;



 public class Unbreakable {

     public static String server = "localhost";

     public static String userName = "system";

     public static String password = "CHANGEME";



     public static void main(String args[])

             throws Exception {

         final Display display = Display.getDefault();

         final Shell shell = new Shell();

         final Connection connection = DBConnectionHelper.connect(server,

                                                                  userName,

                                                                  password);



         shell.setText("CloudTester 1.0");

         Menu main = new Menu(shell,

                              SWT.BAR);



         // 主菜单的第一个菜单项

         MenuItem initItem = new MenuItem(main,

                                          SWT.CASCADE);

         initItem.setText("初始化");



         // 文件菜单，为下拉式

         Menu initMenu = new Menu(initItem);

         MenuItem createTableItem = new MenuItem(initMenu,

                                                 SWT.PUSH);

         createTableItem.setText("建表");



         createTableItem.addSelectionListener(new SelectionListener() {

             @Override

             public void widgetSelected(SelectionEvent arg0) {

                 try {

                     CloudStatement cs = (CloudStatement) connection.createStatement();



                 } catch (SQLException e) {

                     e.printStackTrace();

                 }

             }

@Override

             public void widgetDefaultSelected(SelectionEvent arg0) {

                 System.out.println("***");

             }

         });



         // 打开菜单项

         MenuItem fillDataItem = new MenuItem(initMenu,

                                              SWT.PUSH);

         fillDataItem.setText("填数据");

         // 分割线菜单项

         new MenuItem(initMenu,

                      SWT.SEPARATOR);

         // 退出菜单项

         MenuItem exitItem = new MenuItem(initMenu,

                                          SWT.PUSH);

         exitItem.setText("退出");

         // 为退出菜单项注册事件

         exitItem.addListener(SWT.Selection,

                              new Listener() {

                                  public void handleEvent(Event event) {

                                      // 当单击退出菜单时，释放窗口

                                      shell.dispose();

                                  }

                              });

         // 将文件菜单放置到主菜单的第一个菜单项上

         initItem.setMenu(initMenu);



         // 主菜单的第二个菜单项

         MenuItem view = new MenuItem(main,

                                      SWT.CASCADE);

         view.setText("视图(&V)");



         Menu viewMenu = new Menu(shell,

                                  SWT.DROP_DOWN);

         MenuItem normalItem = new MenuItem(viewMenu,

                                            SWT.RADIO);

         normalItem.setText("普通(&N)");



         //

         MenuItem test = new MenuItem(viewMenu,

                                      SWT.CASCADE);

         Menu t1 = new Menu(test);

         MenuItem i1 = new MenuItem(t1,

                                    SWT.PUSH);

         i1.setText("heh");

         test.setMenu(t1);

         normalItem.setText("普通(&N)");

         //

         // 将文件菜单放置到主菜单的第一个菜单项上

         view.setMenu(viewMenu);

         // 将主菜单放置到窗口上

         shell.setMenuBar(main);

         // shell.setMenu( main );



         shell.open();

         while (!shell.isDisposed()) {

             if (!display.readAndDispatch())

                 display.sleep();

         }

     }



     /**

      * @param value

      *            1 2 3 4 5 6

      * @param key

      *            a a a b b b

      * @param valueType

      *            0没有括号 1max 2min 3sum 4avg 5count

      */

     public static Object[][] groupby(long[] value,

                                      String[] key,

                                      int valueType) {

         Object[][] resultMatrix = new Object[value.length][2];

         int index = 0;

         if (valueType == 0) {

             Set<String> keySet=new HashSet<String>();

             for (int i = 0; i < value.length; i++) {

                 

             }

         }

         return null;

     }

 }