[Java]Swing树状组件JTree -电脑资料

    一 简单样式

    TreeNodeDemo.java<喎?http://www.2cto.com/kf/ware/vc/" target="_blank" class="keylink">vcD4NCjxwcmUgY2xhc3M9"brush:java;">package com.sjf;import javax.swing.JFrame;import javax.swing.JTree;import javax.swing.event.TreeSelectionEvent;import javax.swing.event.TreeSelectionListener;import javax.swing.tree.DefaultMutableTreeNode;public class TreeNodeDemo { public static void main(String[] args) { // 创建没有父节点和子节点、但允许有子节点的树节点，并使用指定的用户对象对它进行初始化，

[Java]Swing树状组件JTree

    TreeNode.java

<code class="hljs cs">package com.sjf;public class TreeNode {    private String nickName = "";    private String name = "";    private String phone = "";    private int age;    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getNickName() {        return nickName;    }    public void setNickName(String nickName) {        this.nickName = nickName;    }    public String getPhone() {        return phone;    }    public void setPhone(String phone) {        this.phone = phone;    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    // 重点在toString，节点的显示文本就是toString      public String toString()    {        return name + "["+nickName+"]";    }}</code>

    二 图标样式

    TreeNode.java

<code class="hljs cs">package com.sjf;public class TreeNode {    private String nickName = "";    private String name = "";    private String phone = "";    private int age;    private String imagePath = "";    public String getImagePath() {        return imagePath;    }    public void setImagePath(String imagePath) {        this.imagePath = imagePath;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public String getNickName() {        return nickName;    }    public void setNickName(String nickName) {        this.nickName = nickName;    }    public String getPhone() {        return phone;    }    public void setPhone(String phone) {        this.phone = phone;    }    public int getAge() {        return age;    }    public void setAge(int age) {        this.age = age;    }    // 重点在toString，节点的显示文本就是toString      public String toString()    {        return name + "["+nickName+"]";    }}</code>

    TreeCellRenderer.java

<code class="hljs java">package com.sjf;import java.awt.Component;import javax.swing.ImageIcon;import javax.swing.JTree;import javax.swing.tree.DefaultMutableTreeNode;import javax.swing.tree.DefaultTreeCellRenderer;/** * 自定义树描述类,将树的每个节点设置成不同的图标 * */public class TreeCellRenderer extends DefaultTreeCellRenderer{    private static final long   serialVersionUID    = 1L;    /**     * 重写父类DefaultTreeCellRenderer的方法     */    @Override    public Component getTreeCellRendererComponent(JTree tree, Object value,            boolean selected, boolean expanded, boolean isLeaf, int row,boolean hasFocus)    {        // 选中        if (selected)        {            setForeground(getTextSelectionColor());        }        else        {            setForeground(getTextNonSelectionColor());        }        // TreeNode        DefaultMutableTreeNode treeNode = (DefaultMutableTreeNode) value;        Object bj = treeNode.getUserObject();        if (obj instanceof TreeNode)         {            TreeNode node = (TreeNode) obj;            DefaultTreeCellRenderer tempCellRenderer = new DefaultTreeCellRenderer();            tempCellRenderer.setLeafIcon(new ImageIcon(node.getImagePath()));            return tempCellRenderer.getTreeCellRendererComponent(tree, node.toString(), selected, expanded, true, row, hasFocus);        }         else if (obj instanceof String)         {            String text = (String) obj;            DefaultTreeCellRenderer tempCellRenderer = new DefaultTreeCellRenderer();            tempCellRenderer.setOpenIcon(new ImageIcon("Image/open.jpg"));            tempCellRenderer.setClosedIcon(new ImageIcon("Image/close.jpg"));            return tempCellRenderer.getTreeCellRendererComponent(tree, text, selected, expanded, false, row, hasFocus);        }         return super.getTreeCellRendererComponent(tree, value, selected, expanded, isLeaf, row, hasFocus);    }}</code>

    TreeNodeDemo.java

<code class="hljs cs">package com.sjf;import javax.swing.JFrame;import javax.swing.JTree;import javax.swing.event.TreeSelectionEvent;import javax.swing.event.TreeSelectionListener;import javax.swing.tree.DefaultMutableTreeNode;public class TreeNodeDemo {    public static void main(String[] args) {        // 创建没有父节点和子节点、但允许有子节点的树节点，并使用指定的用户对象对它进行初始化，
电脑资料
《[Java]Swing树状组件JTree》(https://www.unjs.com)。        // public DefaultMutableTreeNode(Object userObject)        DefaultMutableTreeNode group1 = new DefaultMutableTreeNode("软件部");        TreeNode node1 = new TreeNode();        node1.setName("王雨");        node1.setNickName("漫天飞舞");        node1.setImagePath("Image/1.jpg");        group1.add(new DefaultMutableTreeNode(node1));        TreeNode node2 = new TreeNode();        node2.setName("陈梦");        node2.setNickName("梦");        node2.setImagePath("Image/2.jpg");        group1.add(new DefaultMutableTreeNode(node2));        TreeNode node3 = new TreeNode();        node3.setName("上官飞儿");        node3.setNickName("飞儿");        node3.setImagePath("Image/3.jpg");        group1.add(new DefaultMutableTreeNode(node3));        DefaultMutableTreeNode group2 = new DefaultMutableTreeNode("销售部");        TreeNode node4 = new TreeNode();        node4.setName("上官婉儿");        node4.setNickName("婉儿");        node4.setImagePath("Image/4.jpg");        group2.add(new DefaultMutableTreeNode(node4));        TreeNode node5 = new TreeNode();        node5.setName("上官巧儿");        node5.setNickName("巧儿");        node5.setImagePath("Image/5.jpg");        group2.add(new DefaultMutableTreeNode(node5));        DefaultMutableTreeNode root = new DefaultMutableTreeNode();        root.add(group1);        root.add(group2);        //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++        final JTree tree = new JTree(root);        tree.setCellRenderer(new TreeCellRenderer());        tree.putClientProperty("JTree.lineStyle", "None");        tree.setRootVisible(false);        JFrame. frame. = new JFrame("JTreeDemo");        frame.add(tree);        frame.setSize(300, 300);        frame.setVisible(true);        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++        // 添加选择事件        tree.addTreeSelectionListener(new TreeSelectionListener()         {            @Override            public void valueChanged(TreeSelectionEvent e)             {                DefaultMutableTreeNode node = (DefaultMutableTreeNode) tree.getLastSelectedPathComponent();                if (node == null){                    return;                }//if                Object bject = node.getUserObject();                if(object instanceof TreeNode)                {                    TreeNode user = (TreeNode) object;                    System.out.println("你点击了：" + user.toString());                }                else if(object instanceof String)                {                    String text = (String)object;                    System.out.println("你点击了：" + text);                }            }        });    }}</code>