如何用java连接 vfp 还用VFP啊。我也不太清楚VFP是不是一样的。看一下FAQ里边JDBC的帖子,有一个讲各种数据库的连接,不知道有没有讲。如果是和其他一样,好像不用拷,只要classpath对就行 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 foxpro可以使用jdbc:odbc来进行连接;具体请参考数据库相关. 给个例子你参考一下.要把数据源名设为AddressBook.import java.sql.*; import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.*; public class DisplayQueryResults extends JFrame { //数据库变量定义 private Connection connection; private Statement statement; private ResultSet resultSet; private ResultSetMetaData rsMetaData; //GUI变量定义 private JTable table; private JTextArea inputQuery; private JButton submitQuery; public DisplayQueryResults() { //Form的标题 super( "输入SQL语句,按提交按钮查看结果。" ); //url中指定ODBC中设置的DSN名称 String url = "jdbc:odbc:AddressBook"; String username = ""; String password = ""; //加载驱动程序以连接数据库 try { Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" ); connection = DriverManager.getConnection( url, username, password ); } //捕获加载驱动程序异常 catch ( ClassNotFoundException cnfex ) { System.err.println( "装载 JDBC/ODBC 驱动程序失败。" ); cnfex.printStackTrace(); System.exit( 1 ); // terminate program } //捕获连接数据库异常 catch ( SQLException sqlex ) { System.err.println( "无法连接数据库" ); sqlex.printStackTrace(); System.exit( 1 ); // terminate program } //如果数据库连接成功,则建立GUI //SQL语句 String test="SELECT * FROM TblAddressBook"; inputQuery = new JTextArea( test, 4, 30 ); submitQuery = new JButton( "查询" ); //Button事件 submitQuery.addActionListener( new ActionListener() { public void actionPerformed( ActionEvent e ) { getTable(); } } ); JPanel topPanel = new JPanel(); topPanel.setLayout( new BorderLayout() ); //将"输入查询"编辑框布置到 "CENTER" topPanel.add( new JScrollPane( inputQuery), BorderLayout.CENTER ); //将"提交查询"按钮布置到 "SOUTH" topPanel.add( submitQuery, BorderLayout.SOUTH ); table = new JTable(); Container c = getContentPane(); c.setLayout( new BorderLayout() ); //将"topPanel"编辑框布置到 "NORTH" c.add( topPanel, BorderLayout.NORTH ); //将"table"编辑框布置到 "CENTER" c.add( table, BorderLayout.CENTER ); getTable(); setSize( 500, 300 ); //显示Form show(); } private void getTable() { try { //执行SQL语句 String query = inputQuery.getText(); statement = connection.createStatement(); resultSet = statement.executeQuery( query ); //在表格中显示查询结果 displayResultSet( resultSet ); } catch ( SQLException sqlex ) { sqlex.printStackTrace(); } } private void displayResultSet( ResultSet rs ) throws SQLException { //定位到达第一条记录 boolean moreRecords = rs.next(); //如果没有记录,则提示一条消息 if ( ! moreRecords ) { JOptionPane.showMessageDialog( this, "结果集中无记录" ); setTitle( "无记录显示" ); return; } Vector columnHeads = new Vector(); Vector rows = new Vector(); try { //获取字段的名称 ResultSetMetaData rsmd = rs.getMetaData(); for ( int i = 1; i <= rsmd.getColumnCount(); ++i ) columnHeads.addElement( rsmd.getColumnName( i ) ); //获取记录集 do { rows.addElement( getNextRow( rs, rsmd ) ); } while ( rs.next() ); //在表格中显示查询结果 table = new JTable( rows, columnHeads ); JScrollPane scroller = new JScrollPane( table ); Container c = getContentPane(); c.remove(1); c.add( scroller, BorderLayout.CENTER ); //刷新Table c.validate(); } catch ( SQLException sqlex ) { sqlex.printStackTrace(); } } private Vector getNextRow( ResultSet rs, ResultSetMetaData rsmd ) throws SQLException { Vector currentRow = new Vector(); for ( int i = 1; i <= rsmd.getColumnCount(); ++i ) currentRow.addElement( rs.getString( i ) ); //返回一条记录 return currentRow; } public void shutDown() { try { //断开数据库连接 connection.close(); } catch ( SQLException sqlex ) { System.err.println( "Unable to disconnect" ); sqlex.printStackTrace(); } } public static void main( String args[] ) { final DisplayQueryResults app = new DisplayQueryResults(); app.addWindowListener( new WindowAdapter() { public void windowClosing( WindowEvent e ) { app.shutDown(); System.exit( 0 ); } } ); } } jsp下如何配置fckeditor 2.6.6? 找不到类 java调用shell命令,参数传入星号执行错误的提问 求jsp项目,有什么比较好的案例吗?要求简单点的 大侠们来帮忙看看这个IO异常:系统找不到指定路径 异常 applet如何重绘? 那位有java混淆器和它的用法吗? 使用CachedRowSet的问题 java能否调用SQL-SERVER存储过程呢?如果能?如何调? 难以启齿,但是,还是说吧:那位大虾给点代码吧! java如何用timer类控制每秒触发事件
import java.sql.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*; public class DisplayQueryResults extends JFrame { //数据库变量定义
private Connection connection;
private Statement statement;
private ResultSet resultSet;
private ResultSetMetaData rsMetaData; //GUI变量定义
private JTable table;
private JTextArea inputQuery;
private JButton submitQuery;
public DisplayQueryResults()
{
//Form的标题
super( "输入SQL语句,按提交按钮查看结果。" );
//url中指定ODBC中设置的DSN名称
String url = "jdbc:odbc:AddressBook";
String username = "";
String password = "";
//加载驱动程序以连接数据库
try {
Class.forName( "sun.jdbc.odbc.JdbcOdbcDriver" );
connection = DriverManager.getConnection(
url, username, password );
}
//捕获加载驱动程序异常
catch ( ClassNotFoundException cnfex ) {
System.err.println(
"装载 JDBC/ODBC 驱动程序失败。" );
cnfex.printStackTrace();
System.exit( 1 ); // terminate program
}
//捕获连接数据库异常
catch ( SQLException sqlex ) {
System.err.println( "无法连接数据库" );
sqlex.printStackTrace();
System.exit( 1 ); // terminate program
}
//如果数据库连接成功,则建立GUI
//SQL语句
String test="SELECT * FROM TblAddressBook";
inputQuery = new JTextArea( test, 4, 30 );
submitQuery = new JButton( "查询" );
//Button事件
submitQuery.addActionListener(
new ActionListener() {
public void actionPerformed( ActionEvent e )
{
getTable();
}
}
); JPanel topPanel = new JPanel();
topPanel.setLayout( new BorderLayout() );
//将"输入查询"编辑框布置到 "CENTER"
topPanel.add( new JScrollPane( inputQuery), BorderLayout.CENTER );
//将"提交查询"按钮布置到 "SOUTH"
topPanel.add( submitQuery, BorderLayout.SOUTH );
table = new JTable();
Container c = getContentPane();
c.setLayout( new BorderLayout() );
//将"topPanel"编辑框布置到 "NORTH"
c.add( topPanel, BorderLayout.NORTH );
//将"table"编辑框布置到 "CENTER"
c.add( table, BorderLayout.CENTER );
getTable();
setSize( 500, 300 );
//显示Form
show();
} private void getTable()
{
try {
//执行SQL语句
String query = inputQuery.getText();
statement = connection.createStatement();
resultSet = statement.executeQuery( query );
//在表格中显示查询结果
displayResultSet( resultSet );
}
catch ( SQLException sqlex ) {
sqlex.printStackTrace();
}
} private void displayResultSet( ResultSet rs )
throws SQLException
{
//定位到达第一条记录
boolean moreRecords = rs.next();
//如果没有记录,则提示一条消息
if ( ! moreRecords ) {
JOptionPane.showMessageDialog( this,
"结果集中无记录" );
setTitle( "无记录显示" );
return;
}
Vector columnHeads = new Vector();
Vector rows = new Vector();
try {
//获取字段的名称
ResultSetMetaData rsmd = rs.getMetaData();
for ( int i = 1; i <= rsmd.getColumnCount(); ++i )
columnHeads.addElement( rsmd.getColumnName( i ) );
//获取记录集
do {
rows.addElement( getNextRow( rs, rsmd ) );
} while ( rs.next() );
//在表格中显示查询结果
table = new JTable( rows, columnHeads );
JScrollPane scroller = new JScrollPane( table );
Container c = getContentPane();
c.remove(1);
c.add( scroller, BorderLayout.CENTER );
//刷新Table
c.validate();
}
catch ( SQLException sqlex ) {
sqlex.printStackTrace();
}
}
private Vector getNextRow( ResultSet rs,
ResultSetMetaData rsmd )
throws SQLException
{
Vector currentRow = new Vector();
for ( int i = 1; i <= rsmd.getColumnCount(); ++i )
currentRow.addElement( rs.getString( i ) );
//返回一条记录
return currentRow;
} public void shutDown()
{
try {
//断开数据库连接
connection.close();
}
catch ( SQLException sqlex ) {
System.err.println( "Unable to disconnect" );
sqlex.printStackTrace();
}
} public static void main( String args[] )
{
final DisplayQueryResults app =
new DisplayQueryResults();
app.addWindowListener(
new WindowAdapter() {
public void windowClosing( WindowEvent e )
{
app.shutDown();
System.exit( 0 );
}
}
);
}
}