知识大全 java操作mssql2000的小例子

Posted 2022-07-19 文件

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主要由三个文件组成一个是主执行文件一个是用户界面文件一个是数据模块文件用户界面这一块是用的eclipse的VE插件做的只是还不知道如何发布这样的应用程序．唉 //主程序package fcgl; public class FC /** * @param args */ public static void main(String[] args) // TODO Auto generated method stub Login main(null); //用户界面package fcgl; import java sql ResultSet;import java sql ResultSetMetaData; import eclipse swt SWT;import eclipse swt graphics Point;import eclipse swt graphics Rectangle;import eclipse swt layout FillLayout;import eclipse swt widgets Button;import eclipse swt widgets Composite;import eclipse swt widgets Display;import eclipse swt widgets Label;import eclipse swt widgets List;import eclipse swt widgets Shell;import eclipse swt widgets Text; public class Login private Shell sShell = null; // @jve:decl index= :visual constraint= private Composite posite = null; private Button button = null; private Dm dm ; private Label label = null; private Text text = null; private Text text = null; private Text text = null; private Text textArea = null; private List list = null; private Button button = null; /** * This method initializes posite * */ private void createComposite () posite = new Composite(sShell SWT NONE); posite setLayout(null); button = new Button(posite SWT NONE); button setText( 连接 ); button setSize(new Point( )); button setLocation(new Point( )); button addSelectionListener(new eclipse swt events SelectionAdapter() public void widgetSelected( eclipse swt events SelectionEvent e) dm = new Dm(); boolean c = dm DconnectionOpen(text getText () text getText() text getText()); if (button getText() == 连接 ) if (c == false) label setText( 连接失败 ); else label setText( 连接成功 ); button setText( 断开 ); ResultSet rs=dm ExeSQL(textArea getText ()); try list removeAll(); while(rs next()) for(int i= ;i<= ;i++) list add(rs getString(i)); catch(Exception ee) ee printStackTrace(); else boolean d =dm DconnectionClose(); if (d==false) label setText( 断开失败 ); else label setText( 断开成功 ); button setText( 连接 ); ); label = new Label(posite SWT NONE); label setBounds(new Rectangle( )); label setText( ); text = new Text(posite SWT BORDER); text setBounds(new Rectangle( )); text = new Text(posite SWT BORDER); text setBounds(new Rectangle( )); text = new Text(posite SWT BORDER); text setBounds(new Rectangle( )); textArea = new Text(posite SWT MULTI | SWT WRAP | SWT V_SCROLL | SWT BORDER); textArea setBounds(new Rectangle( )); list = new List(posite SWT BORDER); list setBounds(new Rectangle( )); button = new Button(posite SWT NONE); button setBounds(new Rectangle( )); button setText( 字段 ); button addSelectionListener(new eclipse swt events SelectionAdapter() public void widgetSelected( eclipse swt events SelectionEvent e) list removeAll(); ResultSetMetaData sm=dm GetField(); try for (int i= ;i<=sm getColumnCount();i++) list add(sm getColumnName(i)); catch(Exception ee) ee printStackTrace(); ); /** * @param args */ public static void main(String[] args) // TODO Auto generated method stub /* Before this is run be sure to set up the launch configuration (Arguments >VM Arguments) * for the correct SWT library path in order to run with the SWT dlls * The dlls are located in the SWT plugin jar * For example on Windows the Eclipse SWT plugin jar is: * installation_directory\\plugins\\ eclipse swt win _ jar */ Display display = Display getDefault(); Login thisClass = new Login(); thisClass createSShell(); thisClass sShell open(); while (!thisClass sShell isDisposed()) if (!display readAndDispatch()) display sleep(); display dispose(); /** * This method initializes sShell */ private void createSShell() sShell = new Shell(); sShell setText( 数据库连接 ); sShell setSize(new Point( )); sShell setLayout(new FillLayout()); /*Button btn =new Button(posite SWT None); btn setBounds( ); btn setText( 连接 );*/ createComposite (); //数据模块package fcgl;import java sql Connection;import java sql DriverManager;import java sql ResultSet;import java sql ResultSetMetaData;import java sql Statement; public class Dm Connection dcon; Statement stmt; ResultSet rs = null; ResultSetMetaData rmd; public boolean DconnectionOpen(String i String u String p) final String jdbc_driver = microsoft jdbc sqlserver SQLServerDriver ; final String database_url = jdbc:microsoft:sqlserver:// +i+ : ;DatabaseName=vllia temp ; final String user = u; final String password = p; try Class forName(jdbc_driver); dcon = DriverManager getConnection(database_url user password); stmt = dcon createStatement(ResultSet TYPE_SCROLL_SENSITIVE ResultSet CONCUR_UPDATABLE); catch (Exception e) e printStackTrace(); return false; return true; public boolean DconnectionClose() try stmt close(); dcon close(); catch (Exception e) e printStackTrace(); return false; return true; public ResultSet ExeSQL(String s) try rs=stmt executeQuery(s); catch(Exception e) e printStackTrace(); return rs; public ResultSetMetaData GetField() try rmd =rs getMetaData(); catch (Exception e) e printStackTrace(); return rmd; cha138/Article/program/Java/hx/201311/26398