我有工作人员从结果集中填充 jtable,如下所示;
public class WorkerFillTable extends SwingWorker<DefaultTableModel, DefaultTableModel> {
private DefaultTableModel modeltable;
public WorkerFillTable(DefaultTableModel modeltable) {
this.modeltable = modeltable;
}
@Override
protected DefaultTableModel doInBackground() throws Exception {
ResultSet rs;
Statement stmt;
String query = "select Name,ID,Status,IsActive from current_conf\n" +
"order by Name,ID";
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
String connectionUrl = "jdbc:sqlserver://192.168.130.100;" + "databaseName=DBST;" + "user=" + "user1" + ";" + "password=" + "userpass1" + ";";
Connection con = DriverManager.getConnection(connectionUrl);
stmt = con.createStatement();
rs = stmt.executeQuery(query);
ResultSetMetaData rsmd = rs.getMetaData();
Vector<String> columnNames = new Vector<String>();
int columnCount = rsmd.getColumnCount();
for (int column = 0; column < columnCount; column++) {
columnNames.addElement(rsmd.getColumnLabel(column + 1));
}
Vector<Vector<Object>> data = new Vector<Vector<Object>>();
while (rs.next()) {
Vector<Object> vector = new Vector<Object>();
for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
vector.add(rs.getObject(columnIndex));
}
data.add(vector);
}
rs.close();
stmt.close();
modeltable = new DefaultTableModel(data, columnNames);
return modeltable;
}
@Override
protected void done() {
try {
TableModel modeltable = get();
sorter = new TableRowSorter(modeltable);
cTable.setRowSorter(sorter);
cTable.setModel(modeltable);
} catch (InterruptedException | ExecutionException ex) {
}
}
}
但是所有列都以字符串形式出现。 DB 的“IsActive”列有点只有“1”或“0” Jtable 将此列显示为“true”或“false” 我需要将最后一列 typr 编辑为 jtable 中的 boelan。我该怎么做?
最佳答案
JDBCAdapter
, 它扩展了 AbstractTableModel
,说明了关系数据库和 Java 数据类型之间的典型映射。可以看到here ,一个完整的例子可以在 samples/demo/jfc/TableExample
中找到。 , 在 Java SE Development Kit 8u25 Demos and Samples Downloads 中找到.概括地说,
覆盖
getColumnClass()
.获取列的数据
type
来自ResultSetMetaData
.使用
switch(type)
返回正确的 type-token .
同时考虑一个 SwingWorker<Row, Row>
在 publish()/process()
中获得更细粒度.
关于java - 从结果集中填充表时更改 jtable 的列类型,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/22180425/