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Kun Tao's Blog — Thu, 27 Apr 2006 06:32:00 GMT

本程序改变自�|�上的一个datapicker�Q�没有用javax包，而是��Z��java.awt包。you can use it in your applet.共四个文件�?br />
//1.AbsoluteConstraints.java

import java.awt.Dimension;
import java.awt.Point;

public class AbsoluteConstraints
implements java.io.Serializable {
static final long serialVersionUID = 5261460716622152494L;
public int x;
public int y;
public int width = -1;
public int height = -1;
public AbsoluteConstraints(Point pos) {
this(pos.x, pos.y);
}

public AbsoluteConstraints(int x, int y) {
this.x = x;
this.y = y;
}

public AbsoluteConstraints(Point pos, Dimension size) {
    this.x = pos.x;
    this.y = pos.y;
    if (size != null) {
      this.width = size.width;
      this.height = size.height;
    }
}

public AbsoluteConstraints(int x, int y, int width, int height) {
    this.x = x;
    this.y = y;
    this.width = width;
    this.height = height;
}

public int getX() {
return x;
}

public int getY() {
return y;
}

public int getWidth() {
return width;
}

public int getHeight() {
return height;
}

public String toString() {
return super.toString() + " [x=" + x + ", y=" + y + ", width=" + width +
", height=" + height + "]";
}
}

//2.import java.awt.*;

public class AbsoluteLayout
    implements LayoutManager2, java.io.Serializable {
static final long
      serialVersionUID = -1919857869177070440L;
protected java.util.Hashtable constraints = new java.util.Hashtable();
public
      void addLayoutComponent(String name, Component comp) {
    throw new IllegalArgumentException();
}

public void
removeLayoutComponent(Component comp) {
constraints.remove(comp);
}

public Dimension preferredLayoutSize
      (Container parent) {
    int maxWidth = 0;
    int maxHeight = 0;
    for (java.util.Enumeration e =
         constraints.keys(); e.hasMoreElements(); ) {
      Component comp = (Component) e.nextElement();
      AbsoluteConstraints
          ac = (AbsoluteConstraints) constraints.get(comp);
      Dimension size = comp.getPreferredSize();
      int width =
          ac.getWidth();
      if (width == -1)
        width = size.width;
      int height = ac.getHeight();
      if (height == -1)
        height = size.height;
      if (ac.x + width > maxWidth)
        maxWidth = ac.x + width;
      if (ac.y + height >
          maxHeight)
        maxHeight = ac.y + height;
    }
    return new Dimension(maxWidth, maxHeight);
}

public
      Dimension minimumLayoutSize(Container parent) {
    int maxWidth = 0;
    int maxHeight = 0;
    for
        (java.util.Enumeration e = constraints.keys(); e.hasMoreElements(); ) {
      Component comp = (Component) e.nextElement();
      AbsoluteConstraints ac = (AbsoluteConstraints) constraints.get(comp);
      Dimension size = comp.getMinimumSize();
      int width = ac.getWidth();
      if (width == -1)
        width = size.width;
      int height = ac.getHeight();
      if (height == -1)
        height = size.height;
      if (ac.x + width > maxWidth)
        maxWidth = ac.x + width;
      if
          (ac.y + height > maxHeight)
        maxHeight = ac.y + height;
    }
    return new Dimension(maxWidth, maxHeight);
}

public void layoutContainer(Container parent) {
    for (java.util.Enumeration e = constraints.keys();
         e.hasMoreElements(); ) {
      Component comp = (Component) e.nextElement();
      AbsoluteConstraints ac =
          (AbsoluteConstraints) constraints.get(comp);
      Dimension size = comp.getPreferredSize();
      int width = ac.getWidth();
      if (width == -1)
        width = size.width;
      int height = ac.getHeight();
      if (height == -1)
        height = size.height;
      comp.setBounds(ac.x, ac.y, width, height);
    }
}

public void addLayoutComponent
      (Component comp, Object constr) {
    if (! (constr instanceof AbsoluteConstraints))
      throw new
          IllegalArgumentException();
    constraints.put(comp, constr);
}

public Dimension maximumLayoutSize(Container
target) {
return new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE);
}

public float getLayoutAlignmentX
(Container target) {
return 0;
}

public float getLayoutAlignmentY(Container target) {
return 0;
}

public void invalidateLayout(Container target) {}
}

// 3DateField.java

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Insets;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.net.URL;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Date;
import java.awt.*;

public final class DateField
    extends Panel {
private static final long serialVersionUID = 1L;
private final TextField dateText = new TextField(12);
private final Button dropdownButton = new Button();
private DatePicker dp;
private Dialog dlg;
Point origin = new Point();
final class Listener
      extends ComponentAdapter {
    public void componentHidden(final ComponentEvent evt) {
      final Date dt = ( (DatePicker) evt.getSource()).getDate();
      if (null != dt)
        dateText.setText(dateToString(dt));
      dlg.dispose();
    }
}

public DateField() {
super();
init();
}

public DateField(final Date initialDate) {
    super();
    init();
    dateText.setText(dateToString(initialDate));
}

public Date getDate() {
return stringToDate(dateText.getText());
}

public void setDate(Date date) {
    String v = dateToString(date);
    if (v == null) {
      v = "";
    }
    dateText.setText(v);
}

private void init() {
    setLayout(new BorderLayout());
    dateText.setText("");
    dateText.setEditable(false);
    dateText.setBackground(new Color(255, 255, 255));
    add(dateText, BorderLayout.CENTER);
    dropdownButton.setLabel("选择");
    dropdownButton.setBackground(Color.yellow);
    dropdownButton.addActionListener(new ActionListener() {
      public void actionPerformed(final ActionEvent evt) {
        onButtonClick(evt);
      }
    });
    add(dropdownButton, BorderLayout.EAST);
}

private void onButtonClick(final java.awt.event.ActionEvent evt) {
    if ("".equals(dateText.getText()))
      dp = new DatePicker();
    else
      dp = new DatePicker(stringToDate(dateText.getText()));
    dp.addComponentListener(new Listener());
    final Point p = dateText.getLocationOnScreen();
    p.setLocation(p.getX(), p.getY() - 1 + dateText.getSize().getHeight());
    dlg = new Dialog(new Frame(), true);
    dlg.addMouseListener(new MouseAdapter() {
      public void mousePressed(MouseEvent e) {
        origin.x = e.getX();
        origin.y = e.getY();
      }
    });
    dlg.addMouseMotionListener(new MouseMotionAdapter() {
      public void mouseDragged(MouseEvent e) {
        Point p = dlg.getLocation();
        dlg.setLocation(p.x + e.getX() - origin.x, p.y + e.getY() - origin.y);
      }
    });
    dlg.setLocation(p);
    dlg.setResizable(false);
    dlg.setUndecorated(true);
    dlg.add(dp);
    dlg.pack();
    dlg.setVisible(true);
}

private static String dateToString(final Date dt) {
    if (null != dt)
      return DateFormat.getDateInstance(DateFormat.LONG).format(dt);
    return null;
}

private static Date stringToDate(final String s) {
    try {
      return DateFormat.getDateInstance(DateFormat.LONG).parse(s);
    }
    catch (ParseException e) {
      return null;
    }
}

public static void main(String[] args) {
    Dialog dlg = new Dialog(new Frame(), true);
    DateField df = new DateField();
   //dlg.getContentPane().add(df);
   dlg.add(df);
    dlg.pack();
    dlg.setVisible(true);
    System.out.println(df.getDate().toString());
    System.exit(0);
}
}

//4.DatePicker.java

import java.awt.*;
import java.awt.event.*;
import java.util.GregorianCalendar;
import java.util.Date;
import java.util.Calendar;
import java.text.DateFormat;
import java.text.FieldPosition;
/*
import javax.swing.*;
import javax.swing.plaf.BorderUIResource;
*/
public final class DatePicker
    extends Panel {
private static final long serialVersionUID = 1L;
private static final int startX = 10;
private static final int startY = 60;
private static final Font smallFont = new Font("Dialog", Font.PLAIN, 10);
private static final Font largeFont = new Font("Dialog", Font.PLAIN, 12);
private static final Insets insets = new Insets(2, 2, 2, 2);
private static final Color highlight = Color.YELLOW;//new Color(255, 255, 204);
private static final Color white = new Color(255, 255, 255);
private static final Color gray = new Color(204, 204, 204);
private Component selectedDay = null;
private GregorianCalendar selectedDate = null;
private GregorianCalendar originalDate = null;
private boolean hideOnSelect = true;
private final Button backButton = new Button();
private final Label monthAndYear = new Label();
private final Button forwardButton = new Button();
private final Label[] dayHeadings = new Label[] {
      new Label("�?),
      new Label("一"),
      new Label("�?),
      new Label("�?),
      new Label("�?),
      new Label("�?),
      new Label("�?)};

private final Label[][] daysInMonth = new Label[][] {
      {
      new Label(), new Label(),
      new Label(), new Label(),
      new Label(), new Label(),
      new Label()}
      , {
      new Label(),
      new Label(), new Label(),
      new Label(), new Label(),
      new Label(), new Label()}
      , {
      new Label(), new Label(),
      new Label(), new Label(),
      new Label(), new Label(),
      new Label()}
      , {
      new Label(),
      new Label(), new Label(),
      new Label(), new Label(),
      new Label(), new Label()}
      , {
      new Label(), new Label(),
      new Label(), new Label(),
      new Label(), new Label(),
      new Label()}
      , {
      new Label(),
      new Label(), new Label(),
      new Label(), new Label(),
      new Label(), new Label()}
};
private final Button todayButton = new Button();
private final Button cancelButton = new Button();
public DatePicker() {
    super();
    selectedDate = getToday();
    init();
}

public DatePicker(final Date initialDate) {
    super();
    if (null == initialDate)
      selectedDate = getToday();
    else
      (selectedDate = new GregorianCalendar()).setTime(initialDate);
    originalDate = new GregorianCalendar(selectedDate.get(Calendar.YEAR),
                                         selectedDate.get(Calendar.MONTH),
                                         selectedDate.get(Calendar.DATE));
    init();
}

public boolean isHideOnSelect() {
return hideOnSelect;
}

public void setHideOnSelect(final boolean hideOnSelect) {
    if (this.hideOnSelect != hideOnSelect) {
      this.hideOnSelect = hideOnSelect;
      initButtons(false);
    }
}

public Date getDate() {
    if (null != selectedDate)
      return selectedDate.getTime();
    return null;
}

private void init() {
    setLayout(new AbsoluteLayout());
    /*
    this.setMinimumSize(new Dimension(161, 226));
    this.setMaximumSize(getMinimumSize());
    this.setPreferredSize(getMinimumSize());
    this.setBorder(new BorderUIResource.EtchedBorderUIResource());
    */
   this.setSize(new Dimension(161, 226));
    backButton.setFont(smallFont);
    backButton.setLabel("<");
// backButton.setSize(insets);
//   backButton.setDefaultCapable(false);
    backButton.addActionListener(new ActionListener() {
      public void actionPerformed(final ActionEvent evt) {
        onBackClicked(evt);
      }
    });
    add(backButton, new AbsoluteConstraints(10, 10, 20, 20));
    monthAndYear.setFont(largeFont);
    monthAndYear.setAlignment((int)TextField.CENTER_ALIGNMENT);
    monthAndYear.setText(formatDateText(selectedDate.getTime()));
    add(monthAndYear, new AbsoluteConstraints(30, 10, 100, 20));
    forwardButton.setFont(smallFont);
    forwardButton.setLabel(">");
//   forwardButton.setMargin(insets);
//    forwardButton.setDefaultCapable(false);
    forwardButton.addActionListener(new ActionListener() {
      public void actionPerformed(final ActionEvent evt) {
        onForwardClicked(evt);
      }
    });
    add(forwardButton, new AbsoluteConstraints(130, 10, 20, 20));
    int x = startX;
    for (int ii = 0; ii < dayHeadings.length; ii++) {
    // dayHeadings[ii].setOpaque(true);
      dayHeadings[ii].setBackground(Color.LIGHT_GRAY);
      dayHeadings[ii].setForeground(Color.WHITE);
      dayHeadings[ii].setAlignment((int)TextField.CENTER_ALIGNMENT);
    // dayHeadings[ii].setHorizontalAlignment(Label.CENTER);
      add(dayHeadings[ii], new AbsoluteConstraints(x, 40, 21, 21));
      x += 20;
    }
    x = startX;
    int y = startY;
    for (int ii = 0; ii < daysInMonth.length; ii++) {
      for (int jj = 0; jj < daysInMonth[ii].length; jj++) {
      // daysInMonth[ii][jj].setOpaque(true);
        daysInMonth[ii][jj].setBackground(white);
        daysInMonth[ii][jj].setFont(smallFont);
     //   daysInMonth[ii][jj].setHorizontalAlignment(Label.CENTER);
        daysInMonth[ii][jj].setText("");
        daysInMonth[ii][jj].addMouseListener(new MouseAdapter() {
          public void mouseClicked(final MouseEvent evt) {
            onDayClicked(evt);
          }
        });
        add(daysInMonth[ii][jj], new AbsoluteConstraints(x, y, 21, 21));
        x += 20;
      }
      x = startX;
      y += 20;
    }
    initButtons(true);
    calculateCalendar();
}

private void initButtons(final boolean firstTime) {
    if (firstTime) {
      final Dimension buttonSize = new Dimension(68, 24);
      todayButton.setLabel("今天");
      todayButton.setSize(buttonSize);
      /*
      todayButton.setMargin(insets);
      todayButton.setMaximumSize(buttonSize);
      todayButton.setMinimumSize(buttonSize);
      todayButton.setPreferredSize(buttonSize);
      todayButton.setDefaultCapable(true);
      todayButton.setSelected(true);
      */
      todayButton.addActionListener(new ActionListener() {
        public void actionPerformed(final ActionEvent evt) {
          onToday(evt);
        }
      });
      cancelButton.setLabel("取消");
      cancelButton.setSize(buttonSize);
      /*
      cancelButton.setMargin(insets);
      cancelButton.setMaximumSize(buttonSize);
      cancelButton.setMinimumSize(buttonSize);
      cancelButton.setPreferredSize(buttonSize);
      */
      cancelButton.addActionListener(new ActionListener() {
        public void actionPerformed(final ActionEvent evt) {
          onCancel(evt);
        }
      });
    }
    else {
      this.remove(todayButton);
      this.remove(cancelButton);
    }
    if (hideOnSelect) {
      add(todayButton, new AbsoluteConstraints(25, 190, 52, -1));
      add(cancelButton, new AbsoluteConstraints(87, 190, 52, -1));
    }
    else {
      add(todayButton, new AbsoluteConstraints(55, 190, 52, -1));
    }
}

private void onToday(final java.awt.event.ActionEvent evt) {
    selectedDate = getToday();
    setVisible(!hideOnSelect);
    if (isVisible()) {
      monthAndYear.setText(formatDateText(selectedDate.getTime()));
      calculateCalendar();
    }
}

private void onCancel(final ActionEvent evt) {
selectedDate = originalDate;
setVisible(!hideOnSelect);
}

private void onForwardClicked(final java.awt.event.ActionEvent evt) {
    final int day = selectedDate.get(Calendar.DATE);
    selectedDate.set(Calendar.DATE, 1);
    selectedDate.add(Calendar.MONTH, 1);
    selectedDate.set(Calendar.DATE,
                     Math.min(day, calculateDaysInMonth(selectedDate)));
    monthAndYear.setText(formatDateText(selectedDate.getTime()));
    calculateCalendar();
}

private void onBackClicked(final java.awt.event.ActionEvent evt) {
    final int day = selectedDate.get(Calendar.DATE);
    selectedDate.set(Calendar.DATE, 1);
    selectedDate.add(Calendar.MONTH, -1);
    selectedDate.set(Calendar.DATE,
                     Math.min(day, calculateDaysInMonth(selectedDate)));
    monthAndYear.setText(formatDateText(selectedDate.getTime()));
    calculateCalendar();
}

private void onDayClicked(final java.awt.event.MouseEvent evt) {
    final Label fld = (Label) evt.getSource();
    if (!"".equals(fld.getText())) {
      fld.setBackground(highlight);
      selectedDay = fld;
      selectedDate.set(Calendar.DATE, Integer.parseInt(fld.getText()));
      setVisible(!hideOnSelect);
    }
}

private static GregorianCalendar getToday() {
    final GregorianCalendar gc = new GregorianCalendar();
    gc.set(Calendar.HOUR_OF_DAY, 0);
    gc.set(Calendar.MINUTE, 0);
    gc.set(Calendar.SECOND, 0);
    gc.set(Calendar.MILLISECOND, 0);
    return gc;
}

private void calculateCalendar() {
    if (null != selectedDay) {
      selectedDay.setBackground(white);
      selectedDay = null;
    }
    final GregorianCalendar c = new GregorianCalendar(selectedDate.get(Calendar.
        YEAR), selectedDate.get(Calendar.MONTH), 1);
    final int maxDay = calculateDaysInMonth(c);
    final int selectedDay = Math.min(maxDay, selectedDate.get(Calendar.DATE));
    int dow = c.get(Calendar.DAY_OF_WEEK);
    for (int dd = 0; dd < dow; dd++) {
      daysInMonth[0][dd].setText("");
    }
    int week;
    do {
      week = c.get(Calendar.WEEK_OF_MONTH);
      dow = c.get(Calendar.DAY_OF_WEEK);
      final Label fld = this.daysInMonth[week - 1][dow - 1];
      fld.setText(Integer.toString(c.get(Calendar.DATE)));
      if (selectedDay == c.get(Calendar.DATE)) {
        fld.setBackground(highlight);
        this.selectedDay = fld;
      }
      if (c.get(Calendar.DATE) >= maxDay)
        break;
      c.add(Calendar.DATE, 1);
    }
    while (c.get(Calendar.DATE) <= maxDay); week--;
    for (int ww = week; ww < daysInMonth.length; ww++) {
      for (int dd = dow; dd < daysInMonth[ww].length; dd++) {
        daysInMonth[ww][dd].setText("");
      }
      dow = 0;
    }
    c.set(Calendar.DATE, selectedDay);
    selectedDate = c;
}

private static int calculateDaysInMonth(final Calendar c) {
    int daysInMonth = 0;
    switch (c.get(Calendar.MONTH)) {
      case 0:
      case 2:
      case 4:
      case 6:
      case 7:
      case 9:
      case 11:
        daysInMonth = 31;
        break;
      case 3:
      case 5:
      case 8:
      case 10:
        daysInMonth = 30;
        break;
      case 1:
        final int year = c.get(Calendar.YEAR);
        daysInMonth = (0 == year % 1000) ? 29 : (0 == year % 100) ? 28 :
            (0 == year % 4) ? 29 : 28;
        break;
    }
    return daysInMonth;
}

private static String formatDateText(final Date dt) {
    final DateFormat df = DateFormat.getDateInstance(DateFormat.LONG);
    final StringBuffer mm = new StringBuffer();
    final StringBuffer yy = new StringBuffer();
    final FieldPosition mmfp = new FieldPosition(DateFormat.MONTH_FIELD);
    final FieldPosition yyfp = new FieldPosition(DateFormat.YEAR_FIELD);
    df.format(dt, mm, mmfp);
    df.format(dt, yy, yyfp);
    return (mm.toString().substring(mmfp.getBeginIndex(), mmfp.getEndIndex()) +
            "�?" +
            yy.toString().substring(yyfp.getBeginIndex(), yyfp.getEndIndex()) +
            "�q?);
}
}

Kun Tao's Blog 2006-04-27 14:32 发表评论

圆音寺，露水�Q�蜘

Kun Tao's Blog — Tue, 25 Oct 2005 12:14:00 GMT

从前�Q�有一座圆韛_��Q�每天都有许多�h上香拜佛�Q�香火很旺。在圆音寺庙前的横梁上有个蜘蛛结了张�|�，�׃��每天都受到香火和虔诚的祭拜的熏托�Q�蛛蛛便有了佛性。经�q�了一千多�q�的修炼�Q�蛛蛛佛性增加了不少�?　　忽然有一天，佛主光��了圆韛_��Q�看见这里香火甚旺，十分高兴。离开寺庙的时候，不轻易间地抬��_��看见了横梁上的蛛蛛。佛��d��下来�Q�问�q�只蜘蛛�Q�“你我相见�ȝ��是有�~�，我来问你个问题，看你修炼了这一千多�q�来�Q�有什么真知拙见。怎么��P��”蜘蛛遇见佛��d��是高��_��q�忙�{�应了。佛主问刎ͼ�“世间什么才是最珍贵的？”蜘蛛想了想�Q�回�{�到�Q�“世间最珍贵的是‘得不到’和‘已失去’。”佛�ȝ��了点��_��d��了�?　　��p��样又�q�了一千年的光景，蜘蛛依旧在圆韛_��的横梁上修炼�Q�它的佛性大增。一日，佛主又来到寺前，对蜘蛛说道：“你可还好，一千年前的那个问题�Q�你可有什么更��q��认识吗？”蜘蛛说�Q�“我觉得世间最珍贵的是‘得不到’和‘已失去’。”佛主说�Q�“你再好好想惻I��我会再来找你的。�?　　又过了一千年�Q�有一天，刮�v了大风，风将一滴甘露吹��C��蜘蛛�|�上。蜘蛛望着甘露�Q�见它晶莚w��亮�Q�很漂亮�Q�顿生喜�׃��意。蜘蛛每天看着甘露很开心，它觉得这是三千年来最开心的几天。突�Ӟ�� 又刮起了一阵大风，��甘露吹��C��。蜘蛛一下子觉得失去了什么，感到很寂寞和难过。这时佛��d��来了�Q�问蜘蛛�Q�“蜘蛛这一千年�Q�你可好好想�q�这个问题：世间什么才是最珍贵的？”蜘蛛想��C��甘露�Q�对佛主��_��“世间最珍贵的是‘得不到 ’和‘已失去’。”佛主说�Q�“好�Q�既然你有这��L��认识�Q�我让你��C�h间走一朝吧。�?　　��p��P��蜘蛛投胎��C��一个官宦家庭，成了一个富家小姐，父母为她取了个名字叫蛛儿。一晃，蛛儿��C��十六岁了�Q�已�l�成了个婀娜多姿的��女�Q�长的十分漂亮，楚楚动�h�?　　�q�一日，新科状元郎甘鹿中士，皇帝军_��在后花园��Z��举行庆功宴席。来了许多妙龄少奻I��包括蛛儿�Q�还有皇帝的��公主长风公丅R��状元郎在席间表演诗词歌赋，大献才艺�Q�在场的��女无一不被他折倒。但蛛儿一点也不紧张和吃醋�Q�因为她知道�Q�这是佛主赐予她的姻�~��?　　�q�了些日子，说来很��y�Q�蛛儉K��同母亲上香拜佛的时候，正好甘鹿也陪同母亲而来。上完香拜过佛，二位长者在一边说上了话。蛛儿和甘鹿便来到走廊上聊天�Q�蛛儿很开心，�l�于可以和喜�Ƣ的人在一起了�Q�但是甘鹿�ƈ没有表现出对她的喜爱。蛛儿对甘鹿��_��“你��N��不曾记得十六�q�前�Q�圆韛_��的蜘蛛网上的事情了吗�Q�”甘鹿很诧异�Q�说�Q�“蛛儿姑娘，你漂亮，也很讨�h喜欢�Q�但你想象力未免丰富了一点吧。”说�|�，和母亲离开了�?　　蛛儿回到�Ӟ��心想�Q�佛��L��然安排了�q�场�ȝ��Q��ؓ何不让他记得那�g事，甘鹿��Z��Ҏ��没有一点的感觉�Q?　　几天后，皇帝下召�Q�命新科状元甘鹿和长风公��d��婚；蛛儿和太子芝草完婚。这一消息对蛛儿如同晴�I�霹電I��Ҏ��么也想不同�Q�佛�ȝ��然这样对奏V��几日来�Q�她不吃不喝�Q�穷�I�急思，灵魂��将出壳�Q�生命危在旦夕。太子芝草知道了�Q�急忙赶来�Q�扑倒在床边�Q�对奄奄一息的蛛儿说道�Q�“那日，在后花园众姑娘中�Q�我对你一见钟情，我苦求父皇，他才�{�应。如果你��M��Q�那么我也就不活了。”说着��拿起了宝剑准备自刎�?　　��在�q�时�Q�佛��L��了，他对快要出壳的蛛儿灵��说�Q�“蜘蛛，你可曾想�q�，甘露�Q�甘鹿）是由谁带��C��q�里来的呢？是风�Q�长风公主）带来的，最后也是风��它带走的。甘鹿是属于镉K��公主的，他对你不�q�是生命中的一�D�|��曌Ӏ�而太子芝草是当年圆音寺门前的一��小草，他看了你三千�q�_��爱慕了你三千�q�_��但你却从没有低下头看�q�它。蜘蛛，我再来问你，世间什么才是最珍贵的？”蜘蛛听了这些真�怹�后，好象一下子大彻大悟了，她对佛主��_��“世间最珍贵的不是‘得不到’和‘已失去’，而是现在能把握的�q�福。”刚说完�Q�佛��d��d��了，蛛儿的灵��也回位了，睁开眼睛�Q�看到正要自刎的太子芝草�Q�她马上打落宝剑�Q�和太子深深的抱着…�?　　故事�l�束了，你能领会蛛儿最后一�ȝ��所说的话吗�Q�“世间最珍贵的不是‘得不到�?和‘已失去’，而是现在能把握的�q�福。�?

Kun Tao's Blog 2005-10-25 20:14 发表评论

Kun Tao's Blog — Fri, 21 Oct 2005 12:38:00 GMT

摘要: 2.1.3. 优缺�?优点�Q?一些开发商开始采用�ƈ推广�q�个框架作�ؓ开源项目，有很多先�q�的实现思想对大型的应用支持的较好有集中的网��导航定�?�~�点�Q?不是业届标准对开发工��L��支持不够复杂的taglib�Q�需要比较长的时间来掌握html form �?actionform的搭配比较封闭，但这也是它的�_�֍�所在�?修改��把actionform属性的讄��器和讉K��器修�Ҏ��d��或生成xml文档的方法，然后 ht... 阅读全文

Kun Tao's Blog 2005-10-21 20:38 发表评论

Kun Tao's Blog — Fri, 21 Oct 2005 12:21:00 GMT

摘要: 转蝲说明�Q�本文主要讲�q�内容：J2EE web架构基线�Q�模型选取以及几个模型的优�~�点�Ҏ��。一、J2EE体系包括java server pages(JSP) ,java SERVLET, enterprise bean�Q�WEB service�{�技术。怎样把这些技术组合�v来�Ş成一个适应��目需要的�E�_��架构是项目开发过�E�中一个非帔R��要的步骤。完成这个步骤可以�Ş成一个主要里�E�碑基线�?.各种因数初步��定 ��Z��... 阅读全文

Kun Tao's Blog 2005-10-21 20:21 发表评论

开发J2EE应用应遵循的几点原则

Kun Tao's Blog — Fri, 21 Oct 2005 11:43:00 GMT

摘要: 注：目前J2EE的开发工作网�l�上讨论的热火朝天，各种新技术层��Z��I�P��当然了我们这些新手看的也是一头雾��_��感觉的j2ee涉及到的技术太�q�，各种framework令�h��D��~��ؕ�Q�今天看了这��介�l�性文章，感觉不错�Q�和大家分��n一下文章的主要观点。（其中提到的一些技术或规范可能比较老了�Q�主要是学习一下作者的观点�Q�　1.�l�合商业需求选择合理的架构一般而言�Q�企业信息系�l�（EIS�Q�都要求自己�E�_��、安全、可靠、高效�?.. 阅读全文

Kun Tao's Blog 2005-10-21 19:43 发表评论

J2EE之Duke学习�Q�二�Q?

Kun Tao's Blog — Wed, 21 Sep 2005 11:44:00 GMT

建立,打包,部��v及运行Duke 银行应用�E�序

作�?Jimsons

From:http://www.21tx.com/dev/2005/04/23/33123.html
1. 准备工作...

2. 启动服务�?/FONT>...

2.1创徏银行数据�?..

2.2捕获数据库模�?..

2.3创徏JDBC数据�?..

2.4 ��用户和�l�添加到file�?..

3. �~�译Duke银行应用�E�序代码...

4. 打包�q��|�Duke银行应用�E�序...

4.1 打包企业Beans.

4.2 打包应用�E�序客户�?..

4.3 打包Web客户�?..

4.4 打包�q��|�应用程�?..

5. �q�行应用�E�序客户端Application Client

6. �q�行Web客户�?..

7. 关于例子源代码中的错误更�?..

7.1 NextIdBean代码中的错误...

7.2 Web模块中的错误...

8. 参考资�?..

1. 准备工作

假设你的计算��Z��已经安装�?/FONT>J2EE 1.4 SDK,在徏立DUKE银行应用�E�序之前,你必��d��http://java.sun.com/j2ee/1.4/download.html #tutorial下蝲j2eetutorial压羃包�ƈ��其解压�~?假定你解压的路径�?CODE><INSTALL>/j2eetutorial14,打开例子的配�|�文�?CODE><INSTALL>/j2eetutorial14/examples/common/build.properties

l ��j2ee.home的��D��Z��应用�E�序服务�?Application Server)的安装位�|?例如你的应用�E�序服务器安装在C:/Sun/AppServer,那么你应该设�|�如�? j2ee.home=C:/Sun/AppServer

l ��j2ee.tutorial.home 的��D��|��ؓ你j2eetutorial的安装位�|?例如: j2ee.tutorial.home=C:/j2eetutorial14

l 假如你安装应用程序服务器的时候管理员的用户名不是用默认的admin,那你要将admin.user的值改��Z��讄��的用户名

l 假如你安装应用程序服务器时不是用默认�?080端口,则要��domain.resources.port的值改��Z��讄��的端�?

l ��?lt;INSTALL>/j2eetutorial14/examples/common/admin-password.txt文�g中AS_ADMIN_PASSWORD的��D��Z��安装应用�E�序服务器时讄��的管理员密码,�? AS_ADMIN_PASSWORD=yourpassword

2. 启动服务�?/FONT>

你必��d��启动PointBase数据库服务器�q�且向数据库中添加客户和帐号的资�?你还要向应用�E�序服务器中��d��一些资�? 最后你才能开始打�?部��v和运行例�?

2.1创徏银行数据�?/FONT>

你必��d��创徏数据库�ƈ向数据表中输入数�?然后企业Bean才能从中��d��或向其中写入数据,��h��据以下步骤来创徏数据表�ƈ输入数据:

1. 启动PointBase数据库服务器

2. 打开命��o�?转到/j2eetutorial14/examples/bank/目录�?执行命��oasant create-db_common, �q�条命��o调用PointBase�l�端工具库执�?lt;INSTALL>/j2eetutorial14/examples/bank/sql/create-table.sql中的SQL语句, �q�些SQL语句的功能是先删除所有已�l�存在的表�ƈ创徏新表�q�向表中插入数据, 因�ؓ�W�一�ơ运行这些语句时�q�些表�ƈ不存�? 所以你会看��C��些SQL错误信息,你可以忽略不理这些错误信�?

2.2捕获数据库模�?/FONT>

在创��q�输入数据之�?你可以捕莯��间的�l�构�q�保存到一个模式文件中,请通过以下步骤来捕��h��?

1. 打开命��o行�ƈ切换�?lt;INSTALL>/j2eetutorial14/examples/bank/目录

2. 执行以下命��oasant capture-db-schema , 执行此命令后生成模式文�g/j2eetutorial14/examples/bank/build/dukesbank.dbschema

2.3创徏JDBC数据�?/FONT>

Duke银行的企业Bean用JNDI名jdbc/BankDB来引用数据库,��h��行以下步�?

1. 打开��理�l�端��面http://localhost:4848/asadmin

2. 展开JDBC分支,选择JDBC Resources, 选择 New

3. ��其命名为jdbc/BankDB�q�将它映��到 PointBasePool

2.4 ��用户和�l�添加到file�?/FONT>

��用户和�l�添加到file安全域后,应用�E�序服务器就能判断哪些用戯��讉K��Web客户端的企业Bean的方法和资源,��d��的步骤如�?

1. 打开��理�l�端��面http://localhost:4848/asadmin

2. 展开Configuration分支�q�展开Security分支

3. 展开Realms分支�q��中file�?/FONT>

4. 点击Manage Users�q�点击New

5. �Ҏ��下表输入Duke银行的用户和�l?/FONT>

User	Password	Group
200	j2ee	bankCustomer
bankadmin	j2ee	bankAdmin

3. �~�译Duke银行应用�E�序代码

打开命��o�?转到/j2eetutorial14/examples/bank/目录,执行命��oasant build ,�q�个命��o��q��译了企业Bean,应用�E�序客户端和Web客户端的全部代码,�~�译后的代码位于/j2eetutorial14/examples/bank/build目录�?

4. 打包�q��|�Duke银行应用�E�序

以下�q�程假设你对用部�|�工��h��包企业Bean, 应用�E�序客户端和Web应用�E�序的过�E�都比较熟悉,下面介绍如何打包�q��|�Duke银行(如果你按照以下步骤做了之�?部��v或运行此应用�E�序�q�存在问�?那你可以用我们在/j2eetutorial14/examples/bank/provided-jars/ 目录下提供的EAR文�g��x��包好的文件来部��v和运行这个例�?

4.1 打包企业Beans

1. 创徏一�?/FONT>EJB JAR模块�q�命名�ؓDukesBankEJBJAR ,��其保存�?lt;INSTALL>/j2eetutorial14/examples/bank/目录�?

2. ��d��/j2eetutorial14/examples/bank/build/com/sun/ebank/目录下的ejb和util�? �q�有 /j2eetutorial14/examples/bank/build/目录下的dukesbank.dbschema文�g.

3. 创徏实体Beans(选择��d��到DukesBankEJBJAR�?

a. 用企业Bean向导创徏下面每个表格中的CMP2.0 (容器��理持久�? 企业bean:

AccountBean的设�|�如下表:

Setting	Value
Local Home Interface	LocalAccountHome
Local Interface	LocalAccount
Persistent Fields	accountId, balance, beginBalance, beginBalanceTimeStamp, creditLine, description, type
Abstract Schema Name	AccountBean
Primary Key Class	Existing field accountId

CustomerBean的设�|�如下表:

Setting	Value
Local Home Interface	LocalCustomerHome
Local Interface	LocalCustomer
Persistent Fields	city, customerId, email, firstName, lastName, middleInitial, phone, state, street, zip
Abstract Schema Name	CustomerBean
Primary Key Class	Existing field customerId

TxBean的设�|�如下表:

Setting	Value
Local Home Interface	LocalTxHome
Local Interface	LocalTx
Persistent Fields	amount, balance, description, timeStamp, txId
Abstract Schema Name	TxBean
Primary Key Class	Existing field txId

NextIdBean的设�|�如下表:

Setting	Value
Local Home Interface	LocalNextIdHome
Local Interface	LocalNextId
Persistent Fields	beanName, id
Abstract Schema Name	NextIdBean
Primary Key Class	Existing field beanName

4. �Ҏ��下表建立实体bean的关�p?

Multi-plicity	Bean A	Field Referencing Bean B and Field Type	Bean B	Field Referencing Bean A and Field Type
:	AccountBean	customers, java.util.Collection	CustomerBean	accounts, java.util. Collection
1:*	AccountBean	none	TxBean	account

b. 在Sun-specific SettingsàCMP Database 对话�?/FONT>

1. ��JNDI名字命名为jdbc/BankDB

2. 点击Create Database Mappings,选中Map to Tables in Database Schema File�q�从下拉列表中选择dukesbank.dbschema,如下图所�C?/FONT>

3. 每选择一个企业bean,下方��׃��昄��持久域的映射, ��L��认那些域和关�p?

c. �Ҏ��下表为finder讄��EJB QL查询语句

Duke银行中的finder查询

Enterprise Bean	Method	EJB QL Query
AccountBean	findByCustomerId	select distinct object(a) from AccountBean a, in (a.customers) as c where c.customerId = ?1
CustomerBean	findByAccountId	select distinct object(c) from CustomerBean c, in (c.accounts) as a where a.accountId = ?1
CustomerBean	findByLastName	select object(c) from CustomerBean c where c.lastName = ?1
TxBean	findByAccountId	select object(t) from TxBean t where t.account.accountId = ?3 and (t.timeStamp >= ?1 and t.timeStamp <= ?2)

d. 在NextIdBean的Transaction标签�?��?NextIdBean.getNextId �Ҏ��的Transaction Attributes属性设�|��ؓRequires New.

5. 调用企业Bean向导创徏下表中的stateful session beans(��x��状态会话bean)

Session Bean	Home Interface	Remote Interface	Implementation Class
Account ControllerBean	Account ControllerHome	Account Controller	AccountControllerBean
Customer ControllerBean	Customer ControllerHome	Customer Controller	CustomerControllerBean
TxControllerBean	TxControllerHome	TxController	TxBean

a. �Ҏ��下表列出的添加session beans 到local entity beans 的EJB references即EJB引用.

EJB References in AccountControllerBean

Coded Name	EJB Type	Interfaces	Home Interface	Local Interface	Enterprise Bean Name
ejb/account	Entity	Local	Local AccountHome	LocalAccount	AccountBean
ejb/ customer	Entity	Local	Local CustomerHome	LocalCustomer	CustomerBean
ejb/nextId	Entity	Local	Local NextIdHome	LocalNextId	NextIdBean

EJB References in CustomerControllerBean

Coded Name	EJB Type	Interfaces	Home Interface	Local Interface	Enterprise Bean Name
ejb/customer	Entity	Local	Local CustomerHome	Local Customer	CustomerBean
ejb/nextId	Entity	Local	Local NextIdHome	Local NextId	NextIdBean

EJB References in TxControllerBean

Coded Name	EJB Type	Interfaces	Home Interface	Local Interface	Enterprise Bean Name
ejb/account	Entity	Local	Local AccountHome	Local Account	AccountBean
ejb/ tx	Entity	Local	Local TxHome	LocalTx	TxBean
ejb/nextId	Entity	Local	Local NextIdHome	Local NextId	NextIdBean

b. ��所有session bean的Transaction Management讄��为Container-Managed卛_��器管�?/FONT>

6. 保存�q�个模块

4.2 打包应用�E�序客户�?/FONT>

1. 调用 Application Client 向导

a. 创徏一个应用程序客��L��模块,��它命名为DukesBankACJAR�q�把它保存到/j2eetutorial14/examples/bank/目录�?/FONT>

b. ��d��/j2eetutorial14/examples/bank/build/com/sun/ebank/目录下的appclient, util, ejb/exception包和 ejb/*/*Controller* 即home和远�E�接口文�?即AccountController, AccountControllerHome, CustomerController, CustomerControllerHome, TxController, TxControllerHome) 到JAR�?

c. 选择appclient.BankAdmin 作�ؓ应用�E�序客户端的main class (�ȝ��)

2. �Ҏ��下表��d��对session bean的EJB 引用

Coded Name	EJB Type	Interface	JNDI Name of Session Bean
ejb/accountController	Session	Remote	AccountControllerBean
ejb/customerController	Session	Remote	CustomerControllerBean

3. 保存�q�个模块.

4.3 打包Web客户�?/FONT>

1. 通过Web Component向导创徏一个web模块,命名为DukesBankWAR�q�保存到/j2eetutorial14/examples/bank/目录�?选择Dispatcher 作�ؓServlet�c?其它保持默认.

2. ��d��以下内容到web模块�?/FONT>

a. ��d��/j2eetutorial14/examples/bank/build/com/sun/ebank/目录下的web, util, ejb/exception包和 ejb/*/*Controller* 即home和远�E�接口文�?即AccountController, AccountControllerHome, CustomerController, CustomerControllerHome, TxController, TxControllerHome) 到模块中.

b. ��d��/j2eetutorial14/examples/bank/build/目录下的template目录,所有的jsp��面,所有的WebMessages*.properties文�g和tutorial-template.tld文�g到模块中.

c. 在添加文件的对话框中��WebMessages*.properties文�g从根目录拖到WEB-INF/classes目录�?如下�?/FONT>

3. ��context root 讄��?/bank

4. 打开Dispatcher�l��g的Aliases标签, ��d��/accountHist, /accountList, /atm, /atmAck, /main, /transferAck, /transferFunds, and /logoff作�ؓaliases

5. ��d��下表列出的session bean对EJB 的引�?/FONT>

Coded Name	EJB Type	Interface	JNDI Name of Session Bean
ejb/accountController	Session	Remote	AccountControllerBean
ejb/customerController	Session	Remote	CustomerControllerBean
ejb/txController	Session	Remote	TxControllerBean

6. 在标�{�JSP property��d��名�ؓbank的组,�q�个�l�对应的URL pattern(URL模式)�?.jsp,��d��/template/prelude.jspf 到include prelude �?/FONT>

7. 在Context标签,��d��参数名�ؓjavax.servlet.jsp.jstl.fmt.localizationContext,��gؓWebMessages.

8. 在Security标签��d��安全控制

a. 选择Form Based作�ؓuser authentication�Ҏ��,在authentication讄��中将realm的��D��|��ؓfile, login page (��d��? 讄��?logon.jsp, error page (错误��?讄��?logonError.jsp.

b. ��d��一个security constraint和web resource collection,　用deploytool提供的默认名�U?/FONT>

c. 在web resource collection.中添加URL Patterns(URL模式): /main, /accountList, /accountHist, /atm, /atmAck, /transferFunds, �?/transferAck

d. 选中HTTP�Ҏ��POST和GET.

e. ��d��安全角色(authorized role ) bankCustomer

9. 保存�q�个模块

4.4 打包�q��|�应用程�?/FONT>

1. 创徏一个J2EE application(J2EE应用�E�序),　��它命名为DukesBankApp,�q�保存到/j2eetutorial14/examples/bank/目录�?/FONT>

2. ��d��DukesBankACJAR应用�E�序客户端模块到DukesBankApp

3. ��d��DukesBankEJBJAR即EJB模块到DukesBankApp

4. ��d��DukesBankWAR即Web模块到DukesBankApp

5. ��d��安全角色(security roles) 名�ؓ bankAdmin �?bankCustomer

6. ��Z��业bean��d��以下的安全设�|?security settings)

a. AccountControllerBean:在Security标签,��方法removeCustomerFromAccount, removeAccount, createAccount, �?addCustomerToAccount

的限制访问权限的安全角色为bankAdmin ;�?/CODE>General标签, 点击Sun-specific Settings,然后在弹出的对话框中点击IOR, 在Context对话框将Required讄���为true, ���realm讄���为file.


b.     CustomerControllerBean: 在Security标签,���方法getCustomersOfAccount, createCustomer, getCustomersOfLastName, setName, removeCustomer, �?setAddress的限制访问权限的安全角色为bankAdmin ;�?/CODE>General标签, 点击Sun-specific Settings,然后在弹出的对话框中点击IOR, 在Context对话框将Required讄���为true, ���realm讄���为file.

c.     TxControllerBean�Q�在Security标签,���方法getTxsOfAccount, makeCharge, deposit, transferFunds, withdraw, �?makePayment的限制访问权限的安全角色为bankCustomer
7.     如果你还没有启动应用�E�序服务器（Application Server.�Q�那你现在就启动�?
8.     ���bankCustomer角色映射到bankCustomer�l?/FONT>

9.     ���bankAdmin角色映射到bankAdmin�l?/FONT>

10.  保存�q�个应用�E�序模块
11.  Deploy(部��v)�q�个应用�E�序�Q�在部��vkesBankApp对话框选中Return Client Jar卌���回客��L��Jar选项.
12.  在deploytool中选中server,���右边出现的bank选中�q�启动它�Q?/FONT>

5. �q�行应用�E�序客户端Application Client
��h��据以下步骤来�q�行应用�E�序客户�?
1.           打开命��o行，转到<INSTALL>/j2eetutorial14/examples/bank/目录�?/FONT>

2.           如果是要�q�行英文版本的客��L�����p��入以下命令：　　　　　　　　appclient -client DukesBankAppClient.jar
DukesBankAppClient.jar�q�个文�g是你刚才部��v旉���中�q�回客户端JAR而返回的文�g�Q?/CODE>

3.           如果惌���行西班牙语版本的客户端则�q�行以下命��o�Q?BR>appclient -client DukesBankAppClient.jar es
4.           在弹出的��d��框中�Q�输入用户名bankadmin密码�?j2ee�Q�然后你���可以看��C��下的界面�Q?BR>  
6. �q�行Web客户�?/FONT>

��h��据以下步骤来�q�行Web客户�?/FONT>

1.     请在���览器中打开地址http://localhost:8080/bank/main ,如果查看西班牙版本的客户端则只需在浏览器的语�a�讄���中更改．
2.     在登录页面，输入用户�?00�Q�密码j2ee�q�提�?
3.     当你选择Account List,则你会看��C��下画面．

 
7. 关于例子源代码中的错误更�?/FONT>

       7.1 NextIdBean代码中的错误
    此错误会造成部��v发生错误不能完成�Q�将/j2eetutorial14/examples/bank/src/com/sun/ebank/ejb/util/目录下的NextIdBean.java文�g打开,扑ֈ�下面�q�行代码
public Object ejbCreate() throws CreateException { 
���方法ejbCreate()的返回类型由Object更改为String,再重新编译，�q�在deploytool中更新此文�g�Q�重新部�|�即可成�?/FONT>

       7.2 Web模块中的错误
    打开Web客户端，输入用户名密码然后提交可能会抛出javax.servlet.jsp.JspTagException错误�Q�请�Ҏ��以下步骤�q�行更正:
        1. 用文本编辑器新徏java文档命名为CustomerHackFilter�Q�保存到<INSTALL>/j2eetutorial14/examples/bank/src/com/sun/ebank/web目录�?内容如下�Q?BR>package com.sun.ebank.web;
 
import javax.servlet.*;
import javax.servlet.http.*;
import com.sun.ebank.util.Debug;
import com.sun.ebank.web.*;
import java.io.IOException;
 
/**
 * this is a dumb hack.  update 4 seems to broken unless a
 * CustomerBean is placed in the request linked to the BeanManager. 
 * Naturally, we need to add a BeanManager to the session here,
 * doing some of the work the dispatcher should have done.
 */
public class CustomerHackFilter  implements Filter
{
    private FilterConfig filterConfig = null;
        public void init(FilterConfig filterConfig) 
        throws ServletException 
    {
        this.filterConfig = filterConfig;
    }
 
    public void destroy() {
        this.filterConfig = null;
    }
 
    public void doFilter(ServletRequest req, ServletResponse response,
                         FilterChain chain) 
        throws IOException, 
               ServletException 
    {
        HttpServletRequest request = (HttpServletRequest) req;
        HttpSession        session = request.getSession();
 
        BeanManager beanManager =
            (BeanManager) session.getAttribute("beanManager");
 
        if (beanManager == null) {
            Debug.print("hack - Creating bean manager.");
            beanManager = new BeanManager();
            session.setAttribute("beanManager", beanManager);
        }
 
        CustomerBean customerBean = new CustomerBean();
        customerBean.setBeanManager(beanManager);
        request.setAttribute("customerBean", customerBean); 
        Debug.print("hack - added customerBean to request");
 
        chain.doFilter(request, response);
    }
}
   2. 重新�~�译源代�?/FONT>

   3. 选中DukesBankWAR模块,�~�辑内容,扑ֈ�com/sun/ebank/web/ CustomerHackFilter.class,���它��d��到包�?
   4. 选中DukesBankWAR模块,在Filter Mapping标签,点击Edit Filter List,在弹出的对话框中点击Add Filter,在Filter Class下拉列表中选中com.sun.ebank.web.CustomerHackFilter,Filter Name为CustomerHack,选择OK
   5. �q�是在这个标�{�֜�,点击Add,弹出 “Add Servlet Filter Mapping�?在Filter Name下拉列表中选CustomerHack,下面选中 “Filter this Servlet�?选OK,如下�?

   6. 保存�q�个模块�q����新部�|�运行即可修正错�?/FONT>


Kun Tao's Blog 2005-09-21 19:44 发表评论



Kun Tao's Blog — Sat, 17 Sep 2005 12:47:00 GMT
Duke执行环境�Q?BR>1.J2SE JDK;(download from :http://java.sun.com/j2se/download.html#sdk)
2.J2EE JDK;(download from :http://java.sun.com/j2ee/download.html#sdk)
3.Ant;(download from:http://jakarta.apathe.org/builds/jakarta-ant)
4.Structs;(download from:http://jakarta.apathe.org/builds/jakarta-structs)
5.J2ee Tutorial;(download from :http://java.sun.com/j2ee/download.html#tutorial)
环境配置�Q?BR>1.�?BR>2.J2EE�q�行环境的搭�?/SPAN> 
开发企业��的应用程序需要搭建好J2EE的运行环境。其实也���是�?/SPAN>SUN公司的网站上�?/SPAN>DOWN�?/SPAN>J2EE 1.4 SDK开发工具包。然后双��d��装文�Ӟ��如果你下载的版本与我的一栗���那么这个安装文件就会是�q�个名字�Q?/SPAN>j2eesdk-1_4-dr-windows-eval.exe。同��L��我们也将J2EE SDK安装�?/SPAN>C盘根目录下�?/SPAN> 
需要特别提醒大家的是：J2EE�q�行环境的搭建是�?/SPAN>J2SE�q�行环境的搭��Zؓ基础的。其实想也想得到��Z��么。如果没�?/SPAN>JDK�Q�哪里来的编译和�q�行命��o呢（JAVA�?/SPAN>javac�Q�。安装完J2EE 1.4 SDK包后�Q�具体的讄���与测试步骤如下： 
1�?SPAN style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal">  首先叛_��PATH变量里添�?/SPAN>J2EE SDK�?/SPAN>BIN目录。如�Q?/SPAN>C:\j2sdkee1.3.1\bin。如何往里面��d���Q�前面已�l�讲�q��?/SPAN> 
2�?SPAN style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal">  然后新徏两个变量�Q�一个是JAVA_HOME�Q�变量��gؓ�Q?/SPAN>JDK的安装目录。另一个是J2EE_HOME�Q�变量��gؓJ2EE SDK的安装目录。如囄����Q?/SPAN>   
3�?SPAN style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal">  最后往CLASSPATH变量里添加一个关键的JAR包。它���是J2EE.JAR包。比如我��d��的就是：C:\j2sdkee1.3.1\lib\j2ee.jar�?/SPAN> 
4�?SPAN style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal">  所有的工作做完以后。大家可以通过以下方式验证一下我们的J2EE环境是否已经搭徏成功。在命��o提示�W�状态下输入命��o�Q?/SPAN>J2EE �Q?/SPAN>Verbose。如果屏�q�的最下面看到了这样一句话J2EE server startup complete.那就表示J2EE服务器成功启动了。在我们�?/SPAN>J2EE�E�序要布�|�和�q�行的过�E�中。服务器���一直启动着�?/SPAN> 
另外提一下，如果你需要停�?/SPAN>J2EE服务器，必须再开一个命令窗口，�q�运行如下命令：J2EE –STOP。成功运行后�Q�将会有提示语句。再�ȝ��看启动服务器的那个窗口，你将可以看到提示�W�了�?/SPAN> 
5�?SPAN style="FONT-WEIGHT: normal; FONT-STYLE: normal; FONT-FAMILY: Times New Roman; FONT-VARIANT: normal">  �q�样做了�q�不够，我们�q�需要到�|�页里去���试一下服务器默认��面是否能够正常昄����Q�这��h��能保证我们能够进WEB�E�序的开发。双�?/SPAN>IE���览器的图标�Q�在地址栏里输入�Q?/SPAN>http://localhost:8000,如果你能看到以下�H�口中的内容�Q�那���p��明你�?/SPAN>J2EE环境已经搭徏成功。需要说明一点，�?/SPAN>localhost:后的�?/SPAN>J2EE服务器提供的WEB服务端口受��?/SPAN> 
需要提醒大家的是：当你打开�|�页之前�Q�确认你�?/B>J2EE服务器是启动着的�?/SPAN>如果你机器上没有安装�|�卡�Q�或是网卡安装不正确�Q�也会导致无法打开J2EE服务器默认页面�?/SPAN> 
 

 


Kun Tao's Blog 2005-09-17 20:47 发表评论


Kun Tao's Blog — Tue, 19 Jul 2005 08:56:00 GMT
常用的ant的操�?BR>
常用的ant的操作，方便自己查询�Q�所以传到网上，如果有朋友觉得不够，误���充：
主要的内�Ҏ���Q?BR>  (1)建立一个项�?BR>  (2)建立属�?BR>  (3)�Ҏ��据库的操�?BR>  (4)javac�~�译 
  (5)删除目录 
  (6)建立目录 
  (7)拯���文�g��?
  (8)jar��Z��个包 
  (9)拯���单个文�g 
  (10)�q�行
有更多更好的常用�?我没惛_���?希望大家补充�? 
  


  
  
  
    
  
  
  
  
  
    
           url="jdbc:oracle:thin:@192.168.0.1:1521:oa" 
       userid="oa" password="oa"
       onerror="continue" 
       print="yes"
       src="./demo.ddl"/>
  

    
     
          destdir="${root}/oa/"
      includes="*.java"
      classpath="${CLASSPATH};${CLIENT_CLASSES}/utils_common.jar"