列表选择模式：单选、按shift、按shift或ctrl

2018-10-29 21:23:16 开始写

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 import java.awt.BorderLayout;
 import java.awt.EventQueue;
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.border.EmptyBorder;
 import javax.swing.UIManager;
 import java.awt.GridLayout;
 import javax.swing.JScrollPane;
 import javax.swing.JList;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import javax.swing.ListSelectionModel;
 import javax.swing.JLabel;
 import javax.swing.SwingConstants;
 import java.awt.Font;
 import javax.swing.JFrame;

 public class JListSelectModelTest extends JFrame {
     private JPanel contentPane;
     private JList list1;
     private JList list2;
     private JList list3;
     private JLabel label1;
     private JLabel label2;
     private JLabel label3;
     public static void main(String[] args) {
         // TODO Auto-generated method stub
         try {
             UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
         } catch (Throwable e) {
             e.printStackTrace();
         }
         JListSelectModelTest frame = new JListSelectModelTest();
         frame.setVisible(true);
     }

     public JListSelectModelTest() {
         setTitle("列表项的选择模式");
         setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
         setBounds(100, 100, 550, 300);
         contentPane = new JPanel();
         contentPane.setLayout(new BorderLayout(0, 0));
         setContentPane(contentPane);

         JPanel panel = new JPanel();
         contentPane.add(panel, BorderLayout.CENTER);
         panel.setLayout(new GridLayout(1, 3, 5, 5));

         JScrollPane scrollPane1 = new JScrollPane();
         panel.add(scrollPane1);

         list1 = new JList();
         list1.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         list1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);//设置选择模式为单选
         scrollPane1.setViewportView(list1);

         label1 = new JLabel("单项选择");
         label1.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         label1.setHorizontalAlignment(SwingConstants.CENTER);//设置标签水平居中
         scrollPane1.setColumnHeaderView(label1);//设置滑动面板首个显示

         JScrollPane scrollPane2 = new JScrollPane();
         panel.add(scrollPane2);

         list2 = new JList();
         list2.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         list2.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);//设置选择模式为单选或shift
         scrollPane2.setViewportView(list2);

         label2 = new JLabel("连续选择(按shift)");
         label2.setHorizontalAlignment(SwingConstants.CENTER);
         label2.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         scrollPane2.setColumnHeaderView(label2);

         JScrollPane scrollPane3 = new JScrollPane();
         panel.add(scrollPane3);

         list3 = new JList();
         list3.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         list2.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);//设置选择模式为单选或shift或ctrl
         scrollPane3.setViewportView(list3);

         label3 = new JLabel("默认选择(按Ctrl/Shift)");
         label3.setHorizontalAlignment(SwingConstants.CENTER);
         label3.setFont(new Font("微软雅黑", Font.PLAIN, 14));
         scrollPane3.setColumnHeaderView(label3);

         String[] listData = new String[12];
         for (int i = 0; i < listData.length; i++) {
             listData[i] = "余杰" + (i + 1);
         }
         list1.setListData(listData);//添加列表元素
         list2.setListData(listData);
         list3.setListData(listData);
     }
 }

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说明

单选：一次选中一个

shift：多个连续

ctrl：选中多个（不用连续）

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