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eclipse的一个些个�h讑֮�

bigseal — Wed, 17 Aug 2005 09:38:00 GMT

Version Eclipse 3.1

1.性能

    a. ��用�~�存�q�程资源
       Window -> Preferences -> Internet -> Cache -> 选择Disable Caching
       �q�样在打开web.xml�{�文件时��׃��?Loading xmlns 之类的信息了

    b. ��用有效性验�?BR>       Window -> Preferences -> Validation -> 选择Deselect All
       可能有效性验证是个不错的功能�Q�不�q�有时候需要花的时间太长，有点受不了，基本上也不怎么需�?BR>    c. ��用启动eclipse时自动构�?BR>       Window -> Preferences -> Launching -> 不选择 Build before launching

2.个�h嗜好

    a. 修改Ant Document Url
       Window -> Preferences -> Ant -> Document Url -> 选择Ant Document目录
       �q�样要比eclipse默认去apache的网站访问快多了

    b. 修改快捷键的讑֮�
       Window -> Preferences -> General -> Keys -> 按自��q��需要修�?BR>       ��其是Content assist �q�么一个好用的功能和我的输入法冲突了，只有改了

    c. 修改java文�g的source和output folder
       Window -> Preferences -> Java -> Build Path ->选择 Folders�Q��ƈ设�ؓsrc和classes
       �q�样的项目文件目录比较标准，不过和maven的标准不太一样哦

    d. 修改Mark Occerencs
       Window -> Preferences -> Java -> Editor -> Mark Occerencs -> 把Mark Occerencs�|��ؓdisable
       �q�样在选择一个单词的时候，与这个单词“具有同样含义”的单词��׃��会同时加亮了

bigseal 2005-08-17 17:38 发表评论

在Eclipse安装SVN插�gSubclipse

bigseal — Mon, 15 Aug 2005 04:38:00 GMT

Eclipse 3.0/3.1

Subclipse releases for Eclipse 3.x are hosted at our update site. Add http://subclipse.tigris.org/update as an update site in Eclipse's update manager (which you can find in the Help menu).

The update site itself can be downloaded and used as a local update site as well. Simply unzip the site archive, and add the path as a new "Local Site" in the Eclipse update manager. You can also host your own internal Subclipse update site by placing the site on your own HTTP server (be sure to update site.xml appropriately).

We also provide instructions for installing Subclipse in Eclipse 3.x

Eclipse 2.1.3

Subclipse 0.9.3.3 is linked against Subversion 1.1.4. Binaries for Windows are included.

Development for this version of Eclipse is no longer active. There are no new releases planned.

Download the Eclipse 2.x version

Note�Q?/FONT>如果把文件直接unzip到eclipse的安装目下，在��用的时候会没有授权文�g文�g之类的错误�?BR>

bigseal 2005-08-15 12:38 发表评论

mysql常用操作

bigseal — Mon, 25 Jul 2005 09:38:00 GMT

修改默认字符集（default character set�Q?/STRONG>
在mysql的my.ini配置文�g中设�|�，�q�样在mysql启动后就会自动加�?BR>例如�Q�把默认字符集设�|��ؓUTF-8

default-character-set=utf8

查看变量��|��
例如�Q�查看字�W�集讄��

SHOW VARIABLES LIKE 'character_set_%';
SHOW VARIABLES LIKE 'collation_%';

讄��变量�?/STRONG>
例如�Q�设�|�字�W�集变量

set  character_set_server  = utf8;
set  character_set_system  = utf8;
set  character_set_database  = utf8;
set  character_set_client  = utf8;
set   character_set_connection  = utf8;
set  character_set_results = utf8;

set collation_connection = utf8_general_ci;
set collation_database = utf8_general_ci;
set  collation_server = utf8_general_ci;

bigseal 2005-07-25 17:38 发表评论

java API

bigseal — Fri, 22 Jul 2005 10:00:00 GMT

java.util.*

java.util.StringTokenizer
作用�Q?�Ҏ��标记分割字符�?BR>例子�Q?/P>

StringTokenizer st = new StringTokenizer("this is a test");
     while (st.hasMoreTokens()) {
         System.out.println(st.nextToken());
     }
�l�果为：
     this
     is
     a
     test

但是该类已经不推荐��用了�Q�如果要实现该功能可以通过String�cȝ��split�Ҏ��?java.util.regex package来代�ѝ�?BR>

     String[] result = "this is a test".split("\\s");
     for (int x=0; x<result.length; x++)
         System.out.println(result[x]);
�l�果为：
     this
     is
     a
     test

bigseal 2005-07-22 18:00 发表评论

AWT相关——布局��理

bigseal — Fri, 22 Jul 2005 09:50:00 GMT

Container默认布局��理

Container       null
Panel             FlowLayout
Window        BorderLayout
Dialog           BorderLayout
Frame           BorderLayout

有几个用于布局��理的类
BorderLayout
CardLayout
FlowLayout
GridLayout
GridBaglayout

BorderLayout水��^扩展南北构�g�Q��ɘq�些构�g的宽度达到所在容器的宽度�Q�但�Ҏ��构�g的首先高度调整它们的高度。东西构件被垂直扩展�Q��ƈ�Ҏ��它们的首先宽度调整她们的宽度�Q�中间构件布满剩下的�I�间�?BR>
在��用GridBaglayout��理布局�Ӟ��需要通过GridBagConstraints来指定各构�g的约束条�Ӟ��下面是GridBagConstraints的一些设�|?BR>GridBagConstraints.anchor 构�g在显�C�区中的位置
GridBagConstraints.fill         构�g填充昄��区的方式
GridBagConstraints.gridx/gridy 构�g左上角的�|�格单元
GridBagConstraints.gridwidth/gridheigth 构�g昄��区的大小
GridBagConstraints.weighx/weighy 构�g昄��区可以消耗多��额外的�I�间
GridBagConstraints.insets 构�g的空白区
GridBagConstraints.ipadx/ipady 构�g的内部填�?/P>

bigseal 2005-07-22 17:50 发表评论

an EMF-based implementation of the UML 2.0 metamodel for the Eclipse platform

bigseal — Fri, 15 Jul 2005 06:06:00 GMT

The UML2 project is an EMF-based implementation of the UML 2.0 metamodel for the Eclipse platform designed to support the development of modeling tools. Further objectives of the UML2 project are to provide a common XMI schema to facilitate interchange of semantic models, test cases as a means of validating the specification, and validation rules as a means of defining and enforcing levels of compliance. For more details see Getting Started with UML2

bigseal 2005-07-15 14:06 发表评论

AWT相关——Graphics引用

bigseal — Wed, 13 Jul 2005 06:07:00 GMT

    有两�U�方法要用到对Graphi的引用，�q�两�U�就是传递一个对Graphi的引用，或返回对Graphics的引用�?BR>
   1 .传递一个对Graphi的引用是诸如 void paint(Graphics g)的方法，通过override该方法来辑ֈ�目的�?BR>

import java.awt.*;

public class SubPanel extends Panel{

    public void paint(Graphics g){
        g.setColor(Color.RED);
        g.drawString("subPanel",5,5);
    }
}

2.�q�回对Graphics的引用是诸如 Graphiics getGraphics() 的方法，直接引用�q�回的Grapchics�?BR>

import java.awt.*;

import java.awt.*;

public class SubPanel extends Panel {

    public void test() {
        Graphics g = getGraphics();
        if (g != null) {
            g.setColor(Color.RED);
            g.drawString("subPanel", 5, 5);
        }
    }
}

其中�Q�如果如果组件当前未昄��getGraphics()�Ҏ��q�回null�?img src ="http://www.tkk7.com/bigseal/aggbug/7609.html" width = "1" height = "1" />

bigseal 2005-07-13 14:07 发表评论

bigseal — Wed, 13 Jul 2005 06:04:00 GMT

    AWT是JFC�Q�Java基本�c�）的核心，为JFC的构成提供了以下的基本结构：

代理事�g模型

轻量构�g

剪脓板和数据传输

打印和无鼠标操作

    Java抽象�H�口工具集有四个主要的类�Q�即�Q�构件类�Q�Component�Q�、容器类�Q�Container�Q�、图形类�Q�Graphics�Q�、和布局��理�c�（LayoutManager和LayoutMangager2�Q�。容器包含构�Ӟ��布局��理器确定容器内构�g的位�|�和形状。图形（Graphics�Q�类提供在构件中昄��文本框和囑�Ş的方法�?BR>
1.强制一个容器布�|�它的构�?BR>
    在�Q何时间给定的构�g都是有效�Q�valid�Q�或无效�Q�invalid�Q�的。无效的构�g需要被布置�Q�而有效的构�g不需要。访问一�?无效容器�Q�它的同位体已经产生�Q�的validate()引�v对容器layout()�Ҏ��的调用。��构�g无效的过�E�不仅��构�g自己变得无效�Q�而且也会使构件所在的容器变的无效�?BR>使构件无效的Component和Container�Ҏ��Q?BR>void Component.addNotify()
void Component.show() (invalidates parent container)
void Component.hide() (invalidates parent container)
void Component.reshap(int x,int y,int width,int height)
void Component.setSize(int width,int height)
void Component.setBounds(int x,int y,int width,int height)
void Component.setLayout(LayoutManager)
void Container.add(Component)
void Container.remove(Component)
void Container.removeAll(Component)
void Container.setLayout(LayoutManager)
因此我们可以把希望重新布�|�的构�g讄��为无效，然后调用该构件父容器的validate()�Ҏ��卛_��?BR>

bigseal 2005-07-13 14:04 发表评论

bigseal — Wed, 13 Jul 2005 05:57:00 GMT

Timer是一个线�E�用来调度在后台�U�程中运行的计划��d��的��用工兗��Q�?/FONT>可能计划只运行一�ơ，或者以一定的旉��间隔重复�q�行�?BR>下面是一个定时的��程序：

    /**//**
     * 弹出菜单昄��3�U�钟后自动隐�?BR>     *
     */
    private void timerToHidden() {
        Timer timer = new Timer();

        timer.schedule(new TimerTask() {
            public void run() {
                msgWindow.setVisible(false);
            }
        }, 3000);
    }

bigseal 2005-07-13 13:57 发表评论

bigseal — Fri, 08 Jul 2005 03:20:00 GMT
使用JDIC �Q�Jdesktop Integration Components�Q�类库做开发�?BR>开发过�E�中遇到的问题：

�ȝ��体最��化后隐�?/STRONG>
当发生窗体最��化事�g时把�H�体隐藏��可以了

         /**//*
             * 最��化�H�体时把�H�体�l�隐藏了 �Q�非 Javadoc�Q?BR>             * @see java.awt.event.WindowListener#windowIconified(java.awt.event.WindowEvent)
             */
            public void windowIconified(WindowEvent e){
                e.getWindow().setVisible(false);
            }

单击�pȝ��托盘�Q�显�C�程序主�H�体
单击�pȝ��托盘但时�Q�把�H�体�|��ؓ可见�Q��ƈ把窗体从��d��栏恢�?BR>

           // 单击�pȝ��托盘�Q�显�C�程序主�H�体
        tray_icon.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                buddyFrame.setVisible(true);
                buddyFrame.setState(JFrame.NORMAL);
            }
        });

当有消息时在�pȝ��托盘图标旁显�C�Z��个消息提�C?/STRONG>
�Q�这是一个类��g��MSN那种�Q�而不是把鼠标攑ֈ�托盘上显�C�的 ToolTip�Q?BR>当消息到来时在系�l�托盘图标旁昄��一个弹��单即�?BR>

public void promptMsg(String msg, String ticket, String url, String para,
            String userID) {
        // 讄��消息内容
        mViewMsg.setText(msg);

        // 讄��url�Q�点�?nbsp;mViewMsg 菜单选项事�g的监听程序）
        mViewMsg.addActionListener(new msgMenuActionListener(msgMenu, url + "?"
                + para));

        // 讄��菜单的大��和位置
        setMsgMenuSize();

        msgMenu.setVisible(true);
    }

    /**//**
     *
     * 讄��菜单的大��和位置
     */
    private void setMsgMenuSize() {
        Dimension menuSize = new Dimension(200,150);
        msgMenu.setPopupSize(menuSize);
        int xMenu = tray_icon.getLocationOnScreen().x - menuSize.width + 50;
        int yMenu = tray_icon.getLocationOnScreen().y - menuSize.height;
        Point menuPoint = new Point(xMenu, yMenu);
        msgMenu.setLocation(menuPoint);

    }

bigseal 2005-07-08 11:20 发表评论

国产精品亚洲精品日韩电影,亚洲a一级免费视频,亚洲热线99精品视频

eclipse的一个些个�h讑֮�

在Eclipse安装SVN插�gSubclipse

Eclipse 3.0/3.1

Eclipse 2.1.3

mysql常用操作

java API

AWT相关——布局���理

an EMF-based implementation of the UML 2.0 metamodel for the Eclipse platform

AWT相关——Graphics引用

AWT相关——布局��理