如何为jtree的不同结点加不同的图标

[amekoxiao]

我已经实现了相同级别的结点加不同的图标
现在求如何为所有的结点分别加不同的图标

[liangfengxx]

恩，我也在搞这个东东，帮你顶

[FGS]

参考Icon，很容易的。

[tomcatjava]

法一：扩展DefaultTreeCellRenderer，我的实现如下：

/**
* Customizes tree cell renderer.
*
* @version $version 1.0
* @author yuch
* @date 2004-7-2
*/

import java.awt.Component;
import java.awt.Font;
import java.awt.Color;

import java.net.URL;

import javax.swing.ImageIcon;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;

public class MyTreeCellRenderer extends DefaultTreeCellRenderer {

public MyTreeCellRenderer() {
}

public Component getTreeCellRendererComponent(
JTree tree,
Object value,
boolean selected,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus ) {
super.getTreeCellRendererComponent( tree,value,selected,expanded,leaf,row,hasFocus );

setBackgroundNonSelectionColor( new Color( 245,209,135 ) );
setBackgroundSelectionColor( Color.red );
setBorderSelectionColor( Color.green );

URL urlOpen = MyTreeCellRenderer.class.getClassLoader().getResource( "resource/images/openfold.gif" );
URL urlClose = MyTreeCellRenderer.class.getClassLoader().getResource( "resource/images/closedfold.gif" );
URL urlLeaf = MyTreeCellRenderer.class.getClassLoader().getResource( "resource/images/leaf.gif" );

setOpenIcon( new ImageIcon(urlOpen) );
setClosedIcon( new ImageIcon(urlClose) );
setLeafIcon( new ImageIcon(urlLeaf) );

//这个地方可以自己设定条件，什么条件显示什么样的字体，Icon什么的
Font font = getFont();
if( !leaf ) {
setFont( font.deriveFont( Font.BOLD ) );
}
else {
setFont( font.deriveFont( Font.ITALIC ) );
}

return this;
}
}