所以我有两个JFrame。第一个只有一个按钮,其中有一个事件可以调用第二个。第二个JFrame包含一个填充了MySQL数据库数据的表,该表是以下代码:
public class NewClass extends JFrame {
public NewClass()
{
ArrayList columnNames = new ArrayList();
ArrayList data = new ArrayList();
String url = "jdbc:mysql://localhost:3306/MYDB";
String userid = "root";
String password = "password";
String sql = "SELECT * FROM MYTABLE";
try (Connection connection = DriverManager.getConnection( url, userid, password );
Statement stmt = connection.createStatement();
ResultSet rs = stmt.executeQuery( sql ))
{
ResultSetMetaData md = rs.getMetaData();
int columns = md.getColumnCount();
for (int i = 1; i <= columns; i++)
{
columnNames.add( md.getColumnName(i) );
}
while (rs.next())
{
ArrayList row = new ArrayList(columns);
for (int i = 1; i <= columns; i++)
{
row.add( rs.getObject(i) );
}
data.add( row );
}
}
catch (SQLException e)
{
System.out.println( e.getMessage() );
}
Vector columnNamesVector = new Vector();
Vector dataVector = new Vector();
for (int i = 0; i < data.size(); i++)
{
ArrayList subArray = (ArrayList)data.get(i);
Vector subVector = new Vector();
for (int j = 0; j < subArray.size(); j++)
{
subVector.add(subArray.get(j));
}
dataVector.add(subVector);
}
for (int i = 0; i < columnNames.size(); i++ )
columnNamesVector.add(columnNames.get(i));
JTable table = new JTable(dataVector, columnNamesVector)
{
public Class getColumnClass(int column)
{
for (int row = 0; row < getRowCount(); row++)
{
Object o = getValueAt(row, column);
if (o != null)
{
return o.getClass();
}
}
return Object.class;
}
};
JScrollPane scrollPane = new JScrollPane( table );
getContentPane().add( scrollPane );
JPanel buttonPanel = new JPanel();
getContentPane().add( buttonPanel, BorderLayout.SOUTH );
}
public static void main(String[] args)
{
NewClass frame = new NewClass();
frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
当我直接运行NewClass时,pack()按原样工作,并根据内部高度的大小调整JFrame的大小。但是,每当我使用按钮运行第一个JFrame然后按下按钮来调用该事件时,NewClass会弹出,但窗口太小了。我尝试过使用setSize,显然是pack()。
当我手动调整JFrame的大小时,列和行就像它们应该的那样,只是我无法弄清楚为什么pack()不起作用。
对于如何调整第二个JFrame的大小而不必手动执行此操作,您有什么想法吗? 提前谢谢!
编辑:
第一个JFrame上调用NewClass的按钮代码如下:
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt)
{
NewClass frame = new NewClass();
frame.setVisible(true);
}
答案 0 :(得分:0)
更改...
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = "ApplicationCookie",
LoginPath = new PathString("/auth/login"),
Provider = new CookieAuthenticationProvider { OnApplyRedirect = OnApplyRedirect }
});
public static void OnApplyRedirect(CookieApplyRedirectContext context)
{
var url = HttpContext.Current.Request.Url.AbsoluteUri;
string redirectUrl = "/auth/login";
if (url.ToLower().Contains("/su/"))
{
redirectUrl = "/su/auth/login";
}
else if (url.ToLower().Contains("/app/"))
{
redirectUrl = "/app/auth/login";
}
context.Response.Redirect(redirectUrl);
}
更像是......
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt)
{
NewClass frame = new NewClass();
frame.setVisible(true);
}
这似乎与您在private void jButton2ActionPerformed(java.awt.event.ActionEvent evt)
{
NewClass frame = new NewClass();
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
方法