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我正在使用以下代码从数据库中检索数据，但我不知道如何显示它JList

Class.forName("oracle.jdbc.driver.OracleDriver");
Statement stmt = null;
ResultSet rs;                                                                          
Connection conn=DriverManager.getConnection("jdbc:mysql://127.0.0.1/SPL","root","PWD");
stmt=(Statement) conn.createStatement();
rs=stmt.executeQuery(query);
while (rs.next()) 
{
    String stadium = rs.getString("Stadium");
    String city = rs.getString("City");
}

但我想在JList. 你们能告诉我该怎么做吗？

我正在使用以下代码，但它没有在我的框架上显示任何内容，你能告诉我哪里错了吗？谢谢

 String query="SELECT * FROM Location";
 DefaultListModel model=new DefaultListModel();
 DefaultListModel model1=new DefaultListModel();
 try
 {                                              Class.forName("oracle.jdbc.driver.OracleDriver");
Statement stmt = null;
ResultSet rs;                                                                          
Connection conn=DriverManager.getConnection("jdbc:mysql://127.0.0.1/SPL","root","PWD");
stmt=(Statement) conn.createStatement();
rs=stmt.executeQuery(query);
while (rs.next()) 
{
String stadium = rs.getString("Stadium");
String city = rs.getString("City");
model.addElement(stadium);
model1.addElement(city);
}
JList list=new JList(model);
JList list1=new JList(model1);
f8.add(jpa1); //f8=frame name,jpa1=panel name
jpa1.add(list);                                 list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);                        list.setLayoutOrientation(JList.HORIZONTAL_WRAP);
list.setVisibleRowCount(1);
JScrollPane listScroller = new JScrollPane(list);                                          
}
catch(SQLException e)
{
System.out.println("Message   : " + e.getMessage());
}
4

1 回答 1

6

AJList可能基于 a ListModel，因此您需要制作ListModel包含您的数据的 a，然后使用它来制作您的JList. 我会做一个类Stadium或其他东西，有两个String字段，name并且city.

public class Stadium {
    private String name;
    private String city;

    public Stadium(String name, String city){...}
    //toString()-method to make it display in a meaningful way in the JList
    public String toString(){ return name + " - " + city; }
}

然后你可以写类似

...
DefaultListModel listModel = new DefaultListModel();
while (rs.next()) {
    String name = rs.getString("Stadium");
    String city = rs.getString("City");
    Stadium stadium = new Stadium(name, city)
    listModel.addElement(stadium);
}
JList list = new JList(listModel);

尚未尝试编译和测试此代码，但希望这一点有所帮助！

于 2012-08-27T00:00:48.113 回答