为什么java程序打包为jar后窗口的jtree不显示

[嗨妖精]

在myeclipse里面运行的时候是可以的
但是打包成jar后就不行了

设置jtree的
代码是这样的

package service;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Vector;

import javax.swing.DefaultListModel;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.SwingUtilities;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreePath;

import service.Dto.MyType;

public class MyTree{

	private JPanel panel;
	private Dto dto;
	private Play play;
	private FileInput fileinput = null;
	private JScrollPane jscrollTree;
	// 设置树
	private JTree jtree;
	// 设置节点(此节点为跟节点)
	private DefaultMutableTreeNode dmtnRoot = new DefaultMutableTreeNode();

	private DefaultMutableTreeNode dmtnLeaf;

	private LinkedList<DefaultMutableTreeNode> treeList;
	private TreePath path;
	private static int num = 0;
	
	JPopupMenu popMenu;

	JMenuItem addItem;
	JMenuItem delItem;

	 
	public MyTree(JPanel panel, Dto dto, Play play) {
		this.panel = panel;
		this.dto = dto;
		this.play = play;
		treeList = new LinkedList<DefaultMutableTreeNode>();
		treeList.add(new DefaultMutableTreeNode("默认列表"));
		treeList.add(new DefaultMutableTreeNode("最近播放"));
		initView();
		setOnlineList();
		popMenu = new JPopupMenu();
		
		addItem = new JMenuItem("添加");
		delItem = new JMenuItem("移除");
		
		popMenu.add(addItem);
		popMenu.add(delItem);
		
		actionListener();
		
		addItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent evt) {
				if (fileinput == null)
					fileinput = new FileInput(MusicPlayerFrame.musicplayer);
				fileinput.open();
				File[] files = fileinput.getFiles();
				saveOpenFiles(files);
				setOnlineList();
			}
		});
		delItem.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				jtree.setSelectionPath(path);
				DefaultMutableTreeNode node = (DefaultMutableTreeNode) jtree
						.getLastSelectedPathComponent();
				if (node != null) {
					String name = node.toString();
					if (name.equals("默认列表")) {
						removeAll();
					} else {
						removeFile(name);
					}
				}
			}
		});
	

	}

	private void removeAll() {
		Vector<MyType> playlist = dto.getPlayList();
		playlist.clear();
		dto.setCurrentIndex(-1);
		dto.setStop();
		treeList.getLast().removeAllChildren();
		setOnlineList();
		SwingUtilities.invokeLater(new  Runnable() { 
  			public void run() { 
  				jtree.updateUI(); 
  			} 
  		});
	}
	
	private boolean checkSame(String name, Vector<MyType> list) {
		for (Iterator<MyType> iterator = list.iterator(); iterator.hasNext();) {
			MyType myType = (MyType) iterator.next();
			if (myType.getFilename().equals(name)) {
				return true;
			}
		}
		return false;
	}
	public void removeFile(String name) {
		Vector<MyType> list = dto.getPlayList();
		int k = findFileLoation(name);
		if (k < 0 || k >= list.size()) {
			return;
		}
		int cur = dto.getCurrentIndex();
		if (cur > k) {
			cur--;
		} else if (cur == k) {
			play.Next();
			dto.setCurrentIndex(cur);
		} else {}
		list.remove(k);
		
		setOnlineList();
		SwingUtilities.invokeLater(new  Runnable() { 
  			public void run() { 
  				jtree.updateUI(); 
  			} 
  		});
	}
	
	private void saveOpenFiles(File[] files) {
		Vector<MyType> playlist = dto.getPlayList();
		if (files != null) {
			for (File file : files) {
				if (file.isDirectory()) {
					getDirectoryFiles(file.getAbsolutePath(), playlist);
				}
				else if (!checkSame(file.getName().toLowerCase(), playlist)) {
					MyType temp = dto.newMyType(file.getName().toLowerCase(),
							file.getAbsolutePath().toLowerCase());
					playlist.add(temp);
				} else {}

			}
		}
		dto.setPlayList(playlist);
	}

	
	private void getDirectoryFiles(String filepath, Vector<MyType> playlist) {
		num = 0;
		getFiles(filepath, playlist);
		System.out.println(num);
	}
	
	private void getFiles(String filePath, Vector<MyType> playlist) {
		File root = new File(filePath);
		File[] files = root.listFiles();
		if (files == null) return;
		for (File file : files) {
			if (file.isDirectory()) {
				String spath = file.getAbsolutePath();
				int index = spath.indexOf("$RECYCLE.BIN");
				if (index >= 0) {
					System.out.println("do not find $RECYCLE.BIN");
					continue;
				}
				getFiles(file.getAbsolutePath(), playlist);
			} 
			if (file.isFile()) {
				if (file.getName().endsWith(".mp3") || file.getName().endsWith(".wav")) {
					if (!checkSame(file.getName().toLowerCase(), playlist)) {
						MyType temp = dto.newMyType(file.getName().toLowerCase(),
								file.getAbsolutePath().toLowerCase());
						playlist.add(temp);
						System.out.println("import " + file.getAbsolutePath());
						num++;
					}
				}
			}
		}
	}
	
	
	// 视图
	public void initView() {

		new DefaultListModel();
		panel.setLayout(null);
		jtree = new JTree(dmtnRoot);
		// 设置根节点是否显示
		jtree.setRootVisible(false);
		jtree.putClientProperty("JTree.lineStyle", "None");// 清除线
		//jtree.setShowsRootHandles(true);// 设置图标
//		DefaultTreeCellRenderer  cellRenderer=(DefaultTreeCellRenderer)jtree.getCellRenderer();
//		//获取该树的Renderer 
//		cellRenderer.setClosedIcon(Img.CLOSE);
//		//关闭打开图标 
//		cellRenderer.setOpenIcon(Img.MIN);
//		//设置展开图标
		//设置单击打开
		jtree.setToggleClickCount(1);
		for (Iterator<DefaultMutableTreeNode> iterator = treeList.iterator(); 
				iterator.hasNext();) {
			dmtnRoot.add(iterator.next());

		}

		jscrollTree = new JScrollPane(jtree);
		jscrollTree.setBounds(0, 110, 250, 320);
		panel.add(jscrollTree);
	}

	
	public void actionListener() {
		
		jtree.addMouseListener(new MouseAdapter() {
			@Override
			public void mouseClicked(MouseEvent e) {

				int count = jtree.getRowForLocation(e.getX(), e.getY());

				if (e.getButton() != 3 && count != -1) {
					String strFriendUsername = jtree
							.getLastSelectedPathComponent().toString();
					if (e.getClickCount() == 2 && count != 0
							&& check(strFriendUsername)) {
						if (jtree.isRowSelected(jtree.getRowForLocation(
								e.getX(), e.getY()))) {
							System.out.println("你双击了：" + strFriendUsername);
							int k = findFileLoation(strFriendUsername);
							if (k >= 0 && k < dto.getPlayList().size()) {
								dto.setCurrentIndex(k);
							}
							play.playSelect();
						}
					}
				}
				if (e.getButton() == 3) {
					path = jtree.getPathForLocation(e.getX(), e.getY()); // 关键是这个方法的使用
					if (path == null) {
						return;
					}
					
					jtree.setSelectionPath(path);
					DefaultMutableTreeNode node = (DefaultMutableTreeNode) jtree
						 	 .getLastSelectedPathComponent();
					if (node != null) {
						if (node.equals(treeList.getLast())) {
							return;
						} else if (node.getParent().equals(treeList.getLast())) {
							return;
						}
						popMenu.show(jtree, e.getX(), e.getY());
					}
				}
			}
		});
		

	}
	
	

	private int findFileLoation(String name) {
		Vector<MyType> playList = dto.getPlayList();
		for (int i = 0; i < playList.size(); i++) {
			if (playList.elementAt(i).getFilename().equals(name)) {
				return i;
			}
		}
		return -1;
	}

	private boolean check(String name) {
		for (Iterator<DefaultMutableTreeNode> iterator = treeList.iterator(); iterator
				.hasNext();) {
			DefaultMutableTreeNode type = iterator.next();
			if (type.toString().equals(name)) {
				return false;
			}
		}
		return true;
	}

	// 设置在线列表
	public void setOnlineList() {
		// TODO
		treeList.get(0).removeAllChildren();
		for (int i = 0; i < dto.getPlayList().size(); i++) {
			add(dto.getPlayList().elementAt(i), treeList.get(0));
		}
		//jtree.updateUI();
		SwingUtilities.invokeLater(new  Runnable() { 
			public void run() { 
				jtree.updateUI(); 
			} 
		});
	}

	public void add(MyType elem, DefaultMutableTreeNode dmtList) {
		dmtnLeaf = new DefaultMutableTreeNode(elem.getFilename());
		dmtList.add(dmtnLeaf);
	}
	
	public void addPlayHistory(String name) {
		LinkedList<String> list = dto.getPlayHistory();
		while (list.contains(name)) {
			list.remove(name);
		}
		list.add(name);
		treeList.get(1).removeAllChildren();
		for (int i = list.size() - 1; i >= 0; i--) {
			treeList.get(1).add(new DefaultMutableTreeNode(list.get(i)));
		}
		dto.setPlayHistory(list);
		//jtree.updateUI();
		SwingUtilities.invokeLater(new  Runnable() { 
			public void run() { 
				jtree.updateUI(); 
			} 
		});
	}

	
	
}

实在是不知道为什么- -、 又或者是要去继承JTree才行么。。。

[嗨妖精]

额 没做注释.....主要还是编译器里都能够运行的

[失落夏天]

打包成jar如果还在原机器测试的话，看看不能运行的情况是什么？提示什么错误。。

[嗨妖精]

引用 2 楼 AA5279AA 的回复:

打包成jar如果还在原机器测试的话，看看不能运行的情况是什么？提示什么错误。。

可以运行 但是jtree不显示。。

[嗨妖精]

引用 2 楼 AA5279AA 的回复:

打包成jar如果还在原机器测试的话，看看不能运行的情况是什么？提示什么错误。。

出错还能改 这个我就不知道为什么了。。。

[sunbo624]

用命令行 java -jar xxx.jar运行 看看有没有异常 前提是你没做catch处理或者是你有调用e.printStackTrace();

[会写程序的摄影师]

try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}catch(Exception e)
{
e.printStackTrace();
}

设置成windows风格试试。

[嗨妖精]

引用 6 楼 x4652660 的回复:

try
{
UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
}catch(Exception e)
{
e.printStackTrace();
}

设置成windows风格试试。

恩 我试试啊

[嗨妖精]

我重新用List做了一个- -