Question

我必须在添加新行后对<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div class="rentals_reservation" data-id="3407">1.Booking id: 3407</div> <div class="rentals_reservation" data-id="3407">2.Booking id: 3407</div> <div class="rentals_reservation" data-id="3407">3.Booking id: 3407</div> <div class="rentals_reservation" data-id="3227">1.Booking id: 3227</div> <div class="rentals_reservation" data-id="3227">2.Booking id: 3227</div> <div class="rentals_reservation" data-id="3227">3.Booking id: 3227</div>进行排序。

这是代码（没有工作）

import itertools as it
import matplotlib.pyplot as plt
import time

def printImage(M, k):
    fig = plt.imshow(M, interpolation='nearest')
    fig.set_cmap('hot')
    fig.axes.get_xaxis().set_visible(False)
    fig.axes.get_yaxis().set_visible(False)
    plt.axis('off')
    plt.tight_layout()
    plt.savefig(str(k) + '.png', bbox_inches='tight', pad_inches=0, dpi=300)

    plt.ioff()

n = 1000
t = 1000

with open('data', 'r') as f:
    for i in range(t):
        t0 = time.clock()
        try:
            items = [list(map(float, i.split())) for i in it.islice(f, n)]
        except:
            raise
        else:
            printImage(items,i)
        t1 = time.clock()
        print(str(i) + '/' + str(t) + ' ' + str(t1-t0))

输出结果：表（A，C，B），预期（A，B，C）

model - DefaultTableModel
deviceTable - Jtable

Answer 1

model.fireTableDataChanged();

不要直接调用fireXXX（）方法。

TableModel负责调用相应的方法（在本例中为fireTableRowsInserted）。

编辑：

删除创建分拣机和比较器的代码。

您只需让表格创建分拣机。但是，一旦你这样做，你需要告诉分拣机哪一列要排序：

table.setAutoCreateRowSorter(true);
((DefaultRowSorter)table.getRowSorter()).toggleSortOrder(0);

Answer 2

根据您的示例，您需要定义一个排序键，否则该表实际上是未排序的......

List<RowSorter.SortKey> sortKeys = new ArrayList<RowSorter.SortKey>();
sortKeys.add(new RowSorter.SortKey(0, SortOrder.ASCENDING));
sorter.setSortKeys(sortKeys);
table.setRowSorter(sorter);

以下示例（基于您的）对第一列进行排序。当您点击该按钮时，它会添加行，然后对其进行排序

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.RowSorter;
import javax.swing.SortOrder;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;

public class Test {

    public static void main(String[] args) {
        new Test();
    }

    public Test() {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame frame = new JFrame();
                JTable table = new JTable();
                table.setModel(new DefaultTableModel(null, new String[]{"col1"}));
                TableRowSorter<TableModel> sorter = new TableRowSorter<>(table.getModel());
                sorter.setComparator(0, new Comparator<String>() {
                    @Override
                    public int compare(String o1, String o2) {
                        return o1.compareTo(o2);
                    }
                });
                sorter.setSortsOnUpdates(true);
                List<RowSorter.SortKey> sortKeys = new ArrayList<RowSorter.SortKey>();
                sortKeys.add(new RowSorter.SortKey(0, SortOrder.ASCENDING));
                sorter.setSortKeys(sortKeys);
                table.setRowSorter(sorter);

                JButton btn = new JButton("...");
                btn.addActionListener(new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent e) {
                        DefaultTableModel model = (DefaultTableModel) table.getModel();
                        model.addRow(new String[]{"A"});
                        model.addRow(new String[]{"C"});
                        model.addRow(new String[]{"B"});
                    }
                });

                frame.add(new JScrollPane(table));
                frame.add(btn, BorderLayout.SOUTH);
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

}

添加行后对JTable进行排序

2 个答案: