//系統(tǒng)幫助
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.event.*;
import javax.swing.text.html.*;
import java.io.*;
import java.util.*;

public class AboutSystem implements TreeSelectionListener
{public JLabel jlb1;
 public  JFrame frame;
 public JTree tree=null;
 public JScrollPane js;
 public JEditorPane tp;
 public DefaultMutableTreeNode root,xtjj,xtpz,xgcz,xtsz,tssz,tsgl,dzgl,xtcy,tjpm,tszl,jsgl,xjgl,hsgl,gsgl,dzzj,dzxx,dzgs,
                               tscx,jycx,gccx,gscx,dzcx,jrcx,gjl,tsgzy,dlzc,ztl;

 public AboutSystem()
 {JFrame.setDefaultLookAndFeelDecorated(true);
  frame=new JFrame("系統(tǒng)幫助");
  ImageIcon icon=new ImageIcon("images/home.gif");
  frame.setIconImage(icon.getImage());
  frame.setResizable(false);
  Font font1=new Font("宋體",Font.PLAIN,13);
  Container content=frame.getContentPane();
  Toolkit tool=frame.getToolkit();
  Dimension wndsize=tool.getScreenSize();

  //初始化各個組件
  jlb1=new JLabel(new ImageIcon("images/top.jpg"));
  jlb1.setBounds(0,0,770,100);
  jlb1.setBorder(BorderFactory.createLoweredBevelBorder());

  root=new DefaultMutableTreeNode("商院圖書館管理系統(tǒng)");
  xtjj=new DefaultMutableTreeNode("系統(tǒng)簡介");
  xtpz=new DefaultMutableTreeNode("系統(tǒng)配置");
  xgcz=new DefaultMutableTreeNode("相關操作");
  dlzc=new DefaultMutableTreeNode("用戶登錄、注冊");
  xtsz=new DefaultMutableTreeNode("系統(tǒng)設置");
  tssz=new DefaultMutableTreeNode("圖書設置");
  tsgl=new DefaultMutableTreeNode("圖書管理");
  tszl=new DefaultMutableTreeNode("圖書資料管理");
  jsgl=new DefaultMutableTreeNode("借閱圖書管理");
  xjgl=new DefaultMutableTreeNode("續(xù)借圖書管理");
  hsgl=new DefaultMutableTreeNode("歸還圖書管理");
  gsgl=new DefaultMutableTreeNode("掛失圖書管理");
  dzgl=new DefaultMutableTreeNode("讀者管理");
  dzzj=new DefaultMutableTreeNode("讀者類型、有效證件");
  dzxx=new DefaultMutableTreeNode("讀者資料管理");
  dzgs=new DefaultMutableTreeNode("讀者掛失、解除掛失、到期續(xù)證");
  xtcy=new DefaultMutableTreeNode("系統(tǒng)查詢");
  tscx=new DefaultMutableTreeNode("圖書信息查詢");
  jycx=new DefaultMutableTreeNode("借閱圖書查詢");
  gccx=new DefaultMutableTreeNode("歸還/超期圖書查詢");
  gscx=new DefaultMutableTreeNode("掛失圖書查詢");
  dzcx=new DefaultMutableTreeNode("讀者信息查詢");
  jrcx=new DefaultMutableTreeNode("今日信息查詢");
  tjpm=new DefaultMutableTreeNode("統(tǒng)計排名");
  gjl=new DefaultMutableTreeNode("工具欄");
  tsgzy=new DefaultMutableTreeNode("圖書館主頁");
  ztl=new DefaultMutableTreeNode("狀態(tài)欄");

  root.add(xtjj);root.add(xtpz);root.add(xgcz);xgcz.add(dlzc);
  xgcz.add(xtsz);xgcz.add(tssz);xgcz.add(tsgl);tsgl.add(tszl);
  tsgl.add(jsgl);tsgl.add(xjgl);tsgl.add(hsgl);tsgl.add(gsgl);
  xgcz.add(dzgl);dzgl.add(dzzj);dzgl.add(dzxx);dzgl.add(dzgs);
  xgcz.add(xtcy);xtcy.add(tscx);xtcy.add(jycx);xtcy.add(gccx);
  xtcy.add(gscx);xtcy.add(dzcx);xtcy.add(jrcx);xgcz.add(tjpm);
  xgcz.add(gjl);xgcz.add(tsgzy);xgcz.add(ztl);

  tree=new JTree(root);
  tp=new JEditorPane();
  tp.setEditable(false);
  tp.setContentType("text/html");
  tp.setFont(font1);
  String home=null;
          try{
    	  	  	  		    home="file:"
    	  	  	  		      +System.getProperty("user.dir")
    	  	  	  		      +System.getProperty("file.separator")
    	  	  	  		      +"LibraryHome/bg.html";
    	  	  	  		    try
    	  	  	  		    {tp.setPage(home);}
    	  	  	  		    catch(IOException ioe)
    	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home);}
    	  	  	  		}
    	  	  	  	  catch(Exception es)
	  	  	  { System.err.println("Couldn't create help URL:"+home);}
  js=new JScrollPane(tp);
  js.setFont(font1);
  js.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
  js.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
  JSplitPane splitpane=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,false,tree,js);
  tree.addTreeSelectionListener(this);
  splitpane.setBounds(0,100,770,490);

  content.setLayout(null);
  content.add(jlb1);
  content.add(splitpane);

  frame.setBounds(150,80,770,600);
  frame.setResizable(false);
  frame.setVisible(true);
}
public void valueChanged(TreeSelectionEvent e)
{if(e.getSource()==tree)
 {DefaultMutableTreeNode node=(DefaultMutableTreeNode)tree.getLastSelectedPathComponent();
  if(node.isLeaf())
  {String str=node.toString();
   if(str.equals("系統(tǒng)簡介"))
   {String home=null;
      try{
	  	  	  		    home="file:"
	  	  	  		      +System.getProperty("user.dir")
	  	  	  		      +System.getProperty("file.separator")
	  	  	  		      +"LibraryHome/xtjj.html";
	  	  	  		    try
	  	  	  		    {tp.setPage(home);}
	  	  	  		    catch(IOException ioe)
	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home);}
	  	  	  		}
	  	  	  	  catch(Exception es)
	  	  	  { System.err.println("Couldn't create help URL:"+home);}
   }
   else if(str.equals("系統(tǒng)配置"))
   {String home1=null;
      try{
	  	  	  		    home1="file:"
	  	  	  		      +System.getProperty("user.dir")
	  	  	  		      +System.getProperty("file.separator")
	  	  	  		      +"LibraryHome/xtpz.html";
	  	  	  		    try
	  	  	  		    {tp.setPage(home1);}
	  	  	  		    catch(IOException ioe)
	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home1);}
	  	  	  		}
	  	  	  	  catch(Exception es)
	  	  	  { System.err.println("Couldn't create help URL:"+home1);}
   }
   else if(str.equals("系統(tǒng)設置"))
      {String home2=null;
         try{
   	  	  	  		    home2="file:"
   	  	  	  		      +System.getProperty("user.dir")
   	  	  	  		      +System.getProperty("file.separator")
   	  	  	  		      +"LibraryHome/xtsz.html";
   	  	  	  		    try
   	  	  	  		    {tp.setPage(home2);}
   	  	  	  		    catch(IOException ioe)
   	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home2);}
   	  	  	  		}
   	  	  	  	  catch(Exception es)
   	  	  	  { System.err.println("Couldn't create help URL:"+home2);}
   }
   else if(str.equals("圖書設置"))
         {String home3=null;
            try{
      	  	  	  		    home3="file:"
      	  	  	  		      +System.getProperty("user.dir")
      	  	  	  		      +System.getProperty("file.separator")
      	  	  	  		      +"LibraryHome/tssz.html";
      	  	  	  		    try
      	  	  	  		    {tp.setPage(home3);}
      	  	  	  		    catch(IOException ioe)
      	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home3);}
      	  	  	  		}
      	  	  	  	  catch(Exception es)
      	  	  	  { System.err.println("Couldn't create help URL:"+home3);}
   }
   else if(str.equals("圖書資料管理"))
            {String home4=null;
               try{
         	  	  	  		    home4="file:"
         	  	  	  		      +System.getProperty("user.dir")
         	  	  	  		      +System.getProperty("file.separator")
         	  	  	  		      +"LibraryHome/tszl.html";
         	  	  	  		    try
         	  	  	  		    {tp.setPage(home4);}
         	  	  	  		    catch(IOException ioe)
         	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home4);}
         	  	  	  		}
         	  	  	  	  catch(Exception es)
         	  	  	  { System.err.println("Couldn't create help URL:"+home4);}
   }
    else if(str.equals("借閱圖書管理"))
               {String home5=null;
                  try{
            	  	  	  		    home5="file:"
            	  	  	  		      +System.getProperty("user.dir")
            	  	  	  		      +System.getProperty("file.separator")
            	  	  	  		      +"LibraryHome/jsgl.html";
            	  	  	  		    try
            	  	  	  		    {tp.setPage(home5);}
            	  	  	  		    catch(IOException ioe)
            	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home5);}
            	  	  	  		}
            	  	  	  	  catch(Exception es)
            	  	  	  { System.err.println("Couldn't create help URL:"+home5);}
   }
   else if(str.equals("續(xù)借圖書管理"))
                  {String home6=null;
                     try{
               	  	  	  		    home6="file:"
               	  	  	  		      +System.getProperty("user.dir")
               	  	  	  		      +System.getProperty("file.separator")
               	  	  	  		      +"LibraryHome/xjgl.html";
               	  	  	  		    try
               	  	  	  		    {tp.setPage(home6);}
               	  	  	  		    catch(IOException ioe)
               	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home6);}
               	  	  	  		}
               	  	  	  	  catch(Exception es)
               	  	  	  { System.err.println("Couldn't create help URL:"+home6);}
   }
   else if(str.equals("歸還圖書管理"))
                     {String home7=null;
                        try{
                  	  	  	  		    home7="file:"
                  	  	  	  		      +System.getProperty("user.dir")
                  	  	  	  		      +System.getProperty("file.separator")
                  	  	  	  		      +"LibraryHome/ghgl.html";
                  	  	  	  		    try
                  	  	  	  		    {tp.setPage(home7);}
                  	  	  	  		    catch(IOException ioe)
                  	  	  	  		    {System.err.println("Attempted to read a bad URL:"+home7);}
                  	  	  	  		}
                  	  	  	  	  catch(Exception es)
                  	  	  	  { System.err.println("Couldn't create help URL:"+home7);}
   }
   else if(str.equals("掛失圖書管理"))
                        {String home8=null;
                           try{
                     	  	  	  		    home8="file:"