亚洲国产日韩女人aaaaaa毛片在线,亚洲精品午夜视频,亚洲av极品无码专区在线观看

G_G — Sun, 04 May 2008 01:59:00 GMT

�q�就不介�l�了代码上：

package unit;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.junit.Assert;
import org.junit.Test;

public class RegexUnit {

    @Test
    /**
     *

向前\向后查找

     */
    public void unit9()throws Exception{
        String testStr = "http://www.google.com";

        /* 一般查�?br />         * .+(:) 查询出结果包含�?
         */
        Pattern pattern = Pattern.compile(".+(:)");
        Matcher matcher =  pattern.matcher(testStr);
            Assert.assertTrue("错误�Q� 查扑և��l�果通过 .+(:) 此regex没有包含 : ",
                    matcher.find() && matcher.group().equals("http:") );

        /*  向前查找
         *  .+(?=:) 查询�l�果不包含�?
         */
        Pattern pattern2 = Pattern.compile(".+(?=:)");
        Matcher matcher2 = pattern2.matcher(testStr);
            Assert.assertTrue("错误�Q� 查扑և��l�果通过 .+(?=:) 此regex有包含�? ",
                    matcher2.find()&& matcher2.group().equals("http"));
        /* 向后查找
         * (?<=:).+
         */
        Pattern pattern3 = Pattern.compile("(?<=://).+");
        Matcher matcher3 = pattern3.matcher(testStr);
            Assert.assertTrue("错误�Q�查扑և��l�果包含 http:// 不向后查�?/span>",
                    matcher3.find()&& matcher3.group().equals("www.google.com") );
    }

    @Test
    /** 回朔应用
     *  查询回朔、回朔替换、回朔大��写替换
     */
    public void unit8()throws Exception{
        String testStr = "this is a block of of test,"+
                            " several words here are are " +
                            " repeated , and and they should not be. ";

        Pattern pattern = Pattern.compile("[ ]+(\\w+)[ ]+\\1");
        Matcher matcher = pattern.matcher(testStr);
        //查询�l�果 are are
        Assert.assertTrue("错误�Q�regex 不匹配�?/span>",
                matcher.find()&&matcher.group().split(" ").length>=2 );

        while( matcher.find() ){
            Assert.assertTrue("错误�Q�regex 不匹配�?/span>",
                    matcher.group().split(" ").length>=2 );
        }


        //替换
        String testStr2s = "313-555-1234";
        Pattern pattern2 = Pattern.compile("(\\d{3})(-)(\\d{3})(-)(\\d{4})");
        Matcher mtmp =  pattern2.matcher(testStr2s);
        Assert.assertTrue("错误�Q�没有查替换",
                mtmp.find() &&
                    mtmp.replaceAll("($1) $3-$5").equals("(313) 555-1234") );


        /*大小写替�?java 不能成功)
         *  \E �l�束 \L 或 \U转换
         *  \l  \L 把下一个字�W?�?换�ؓ��写
         *  \ u  \U 把下一个字�W?�?转换为大写�?br />         */
        String testStr3 = "tt:google:xx";
        Pattern pattern3 = Pattern.compile("(?<=:)(.+)(?=:)");
        Matcher matcher2 = pattern3.matcher(testStr3);
        if( matcher2.find())
            System.out.println( matcher2.group() ) ;
    }


}

G_G 2008-05-04 09:59 发表评论

G_G — Sat, 26 Apr 2008 10:30:00 GMT

摘要: level �c�：Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->package hbm;import java.util.Set;/** * @hibernate.class table = "level" * where = " visible = ... 阅读全文

G_G 2008-04-26 18:30 发表评论

G_G — Mon, 07 Apr 2008 14:49:00 GMT

权限设计的探讨阅��d��?/font>

文章路径�Q?a id="n3dz" >http://www.chinaitpower.com/A200508/2005-08-07/183934.html

权限设计通常包括数据库设计、应用程序接�?API)设计、程序实��C��个部分�?/p>

权限分类�Q?/font>

首先�?strong id="a-fu">针对数据存取的权限，通常有录入、浏览、修攏V��删除四�U��?/p>

其次�?strong id="obi3">功能�Q�它可以包括例如�l�计�{�所有非直接数据存取操作�Q�另外，我们�q�可能对一些关键数据表某些字段的存取进行限制�?/p>

权限表及相关内容大体可以用六个表来描�q�ͼ�如下�Q��?br id="f:vt" /> 1 拥有权限角色�Q�即用户�l�）�Q�具�?strong id="m2-j">拥有权限描述实体�?/p>

2 用户�?/font>�Q�用��L��描述�Q�其它（如地址、电话等信息�Q�；
3 角色-用户对应�?/font>�Q�该表记录用户与角色之间的对应关�p?多对多关�p?/font>)�Q�一个用户可以隶属于多个角色�Q�一个角色组也可拥有多个用户�?/p>

4 权限列表�Q�程�?strong id="ohbe">所�?/strong>权限列表。该表记录所有要加以控制的权限，如录入、修攏V��删除、执行等�Q��?br id="garo" /> 5 权限-角色-用户对应�?/font>�Q?strong id="ome4">权限对应角色(多对多关�p?/font>)再由4表关�p�d��用户�?/p>

在探讨文中的�W?条，我怎么都不太理解？望大家探讨。反向权限吗�Q�那怎么和系�l�中的拥有一��h��q�ͼ�

下面提出一些自��q��见解�Q?/strong>

1 用户表：用户的描�q�ͼ�其它�Q�如地址、电话等信息�Q�；

2 权限列表�Q�程�?strong id="n-8.">所�?font id="r7ps" color="#660000">权限列表。该表记录所有要加以控制的权限，如录入、修攏V��删除、执行等�Q��?br id="xst3" /> 3 权限树（模糊看成角色�Q�但有些不同。树性结构，�l�构数据库中表外键自己）�Q�孩子接点��承父亲接点全部权限，�q�在�ơ上扩充和删减权限徏立自己分支�?/font>

4 权限列表-权限树：�Q�多对多关系�Q�用于描�q�此权限树接�?/font>�?font id="tu_b" color="#990000">父亲接点权限�l�承�?/strong>�Q�由自己��d��和消减的权限�Q?/p>

本表中用一列枚丑ֈ�用于表示本纪录是��d��或删减权限�?/p>

5 用户-权限树：权限树接�?/strong>对应用户�Q�多对一�Q�关�p�R�?/p>

感觉自己的这�U�框�Ӟ��能很好的扩充�Q�在某接点下增，删某权限或直接找�?strong id="dwf0">最向近的一个权限树接点�q��?/strong>�Q� �?/p>

大家多说说自��q��见解�Q�和�Ҏ��下这两个框架的一些优�~�点把。本人随时恭听。G_G

�?008-4-7 22:50北京

google doc 原稿�Q��?a class="tabcontent" id="publishedDocumentUrl" target="_blank">http://docs.google.com/Doc?id=dkvfctc_16hgvfkbfs

G_G 2008-04-07 22:49 发表评论

快速修�?xdoclet samples ant -build.xml 适应实际开�?

G_G — Wed, 26 Mar 2008 08:29:00 GMT
目的�Q�马上��用��?xdoclet hibernate
使用�Q?a id="homepage1_HomePageDays_DaysList_ctl01_DayItem_DayList_ctl00_TitleUrl" href="/Good-Game/archive/2008/03/23/188055.html">xdoclet 2
            ->   all jar
            -> build.xml;build-dist.properties;maven.xml;project.properties;project.xml

开始：
       1.在项目工�E?根目录下��Z��文�g夹：xdoclet 拯�� *.xml 到此文�g�?br />       2.在此目录下徏 lib �q�把 xdoclet jar 攑օ� .
       3.修改 build.xml

    <target name="clean">
        <delete >
            <fileset dir="${samples.dist.dir}" >
                <include name="**/*.hbm.xml"/>
            fileset>
        delete>
    target>


        <hibernatedoclet >
            <fileset dir="${samples.java.dir}">
                <include name="**/*.java"/>
            fileset>
         <hibernate version="3.0"/>

hbm2ddl>> http://blog.csdn.net/f1musicc/archive/2006/02/21/604699.aspx
eclipse->>
    ant runtime home + classpath = 到本工程中的 classpath
    ant runtime home + mysql jar ;
    ant runtime home + commons-collection.jar

    <target name="hbm2ddl">
          <mkdir dir="${hbm2ddl.sql.dir}" />

          <taskdef name="hbm2ddl"
             classname="org.hibernate.tool.ant.HibernateToolTask"
              classpath="E:\\test\\caijing\\WebRoot\\WEB-INF\\classes"/>

          <hbm2ddl destdir="${hbm2ddl.sql.dir}">
                   <configuration configurationfile="../src/hibernate.cfg.xml" />
                   <hbm2ddl export="true" console="false" create="true" update="false" drop="false" outputfilename="bestunix.sql"/>
          hbm2ddl>

    target>

->target->name=hibernate->hibernate version=3.0
4.修改 build-dist.properties->
    samples.lib.dir�Q�指定工�E�jar�Q?/font>
    samples.src.dir/samples.java.dir�Q�代码所在）
    samples.gen-src.dir �Q�映��生成地址�Q?/font>
        samples.dist.dir = ..\\src\\java\\questionnaire
        samples.lib.dir = ..\\lib
        samples.src.dir = ..\\src\\java\\questionnaire
        samples.java.dir = ..\\src\\java\\questionnaire
        samples.gen-src.dir = ..\\src\\java\\questionnaire

加蝲�?eclipse �?ant �?br />调用�q�个 target 动�v来了��p��栗��工作吧�Q?br />

G_G 2008-03-26 16:29 发表评论

xdoclet 2

G_G — Sun, 23 Mar 2008 10:38:00 GMT
XDoclet 2
   all XDoclet -> http://xdoclet.sourceforge.net/xdoclet/install.html
   jar 下蝲�Q?http://xdoclet.codehaus.org
   eclipes 插�g xdoclet http://www.beust.com/doclipse/

XDoclet 1 一些工�?br />   http://xdoclet.sourceforge.net/xdoclet/tools.html

�|�上demo资料�Q?br />   http://www.tkk7.com/martinx/archive/2006/01/25/29197.html

XDoclet 2 for Hibernate 3
    http://www.hibernate.org/338.html
    http://www.tkk7.com/martinx/archive/2006/01/25/29197.html

XDoclet 2 Tags 说明
   http://xdoclet.codehaus.org/XDoclet+Plugins
XDoclet 1�? �Ҏ��
   http://bbmyth.javaeye.com/blog/31812

大家一��P��XDoclet 2时代��p��来到。我们大家一赯��上�?img src ="http://www.tkk7.com/Good-Game/aggbug/188055.html" width = "1" height = "1" />

G_G 2008-03-23 18:38 发表评论

G_G — Sun, 09 Mar 2008 02:46:00 GMT
数据扒出效果
双色球（2008001�Q?/span>=02,04,07,09,14,29#03
双色球（2008002�Q?/span>=03,04,18,22,25,29#09
..

junit代码
package test;

import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import junit.framework.TestCase;

public class HttpConn extends TestCase {
    public void testT() throws Exception {
        zq :
        for(int i=2008001;true;i++){
            String num =  getQihao(i) ;
            System.out.println("双色球（"+i+"�Q?"+ num);
            if(num==null||num.equals("")) break zq;
        }
    }

    public String getQihao(int qihao) throws Exception {
        URL url = new URL("http://www.cnlot.net/ssq/details.php?issue="+qihao);
        URLConnection uconn = url.openConnection();

        String num = "";

        InputStream in = uconn.getInputStream();
        byte[] bs = new byte[in.available()];
        in.read(bs);
        String date = new String(bs) ;

        Pattern pa = Pattern.compile(" .+color=red>([0-9][0-9])<.+" );
        Matcher m = pa.matcher(date);
        while( m.find() )
            num+= m.group(1)+",";

         pa = Pattern.compile(" .+color=blue>([0-9][0-9])<.+" );
         m = pa.matcher(date);
        while( m.find() )
            num = num.substring( 0,num.length()-1 )+"#"+m.group(1) ;

        pa = Pattern.compile("^(([0-9][0-9],){5,}[0-9][0-9]#([0-9][0-9],)*[0-9][0-9]\\|)*(([0-9][0-9],){5,}[0-9][0-9]#([0-9][0-9],)*[0-9][0-9])*$");
        m =  pa.matcher(num);
        if( m.find() )
            return num ;
        else
            return null ;
    }
}

G_G 2008-03-09 10:46 发表评论

G_G — Fri, 25 Jan 2008 02:30:00 GMT
引用�Q�http://blog.bcchinese.net/shiaohuazhang/archive/2005/02/16/10493.aspx
    timer = new Timer(true);
    timer.schedule(new RunTask(), 1000 * 60, 1000 * 240);

////////////////////////////////////
public class RunTask extends TimerTask {
  private boolean run = false;
  public RunTask() {
  }
  public void run() {
       .
  }
  private static Logger logger = Logger.getLogger(RunTask.class);
}

G_G 2008-01-25 10:30 发表评论

tomcat 配置 jndi

G_G — Thu, 24 Jan 2008 06:12:00 GMT
讨厌(370801149) 14:02:04 ☆づ(18246131) 14:02:45 web.xml,server.xml 讨厌(370801149) 14:02:57 server.xml ☆づ(18246131) 14:02:58 �q�两个地方，你都配置了吗�Q? 讨厌(370801149) 14:03:01 en 讨厌(370801149) 14:03:14 jdbc icijavax.sql.DataSourceContainer 讨厌(370801149) 14:03:17 web.xml 讨厌(370801149) 14:03:28 WEB-INF/web.xml 讨厌(370801149) 14:03:33 context.xml

G_G 2008-01-24 14:12 发表评论

G_G — Wed, 09 Jan 2008 01:46:00 GMT
java 内连
            //�?java jdk URL
            URL httpurl = new URL(url);
            HttpURLConnection httpConn = null;
            httpConn = (HttpURLConnection) httpurl.openConnection();
            httpConn.setRequestMethod("POST");
            httpConn.setDoOutput(true);
            httpConn.setDoInput(true);
          //正式�q�接
            httpConn.getOutputStream();
            /**输入参数
          PrintWriter outs = new PrintWriter(httpConn.getOutputStream());
            outs.print("&back_url=" + returnurl);
            outs.print("&orderid=" + deposit.getOrderId());
            outs.print("&bussinessid=" + SZFConstant.B_ID);
            outs.print("&digestString="
                    + MD5Util.MD5Encode(SZFConstant.B_ID + deposit.getOrderId()
                            + SZFConstant.KEY));
            outs.flush();
            outs.close();

          GET ��׃��?�?了�?url + 参数
            */
            byte[] bb = new byte[httpConn.getInputStream().available()];
            httpConn.getInputStream().read(bb);
            //取得数据
            String str = new String(bb);

javascript 现在�q�种取法有个名字叫（ajax�Q?�?

<html>
<head>
<link href="http://www.cc168.com.cn/css/index.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" href="http://www.cc168.com.cn/css/framework.css" type="text/css"/>
<script language="javascript">

window.onload = function()
{
  CreateDateSelect();
}

var xmlHttp = false;
var e;

//创徏XMLHTTP对象
function getXMLHTTPObj()
{
  var C = null;
  try
  {
     C = new ActiveXObject("Msxml2.XMLHTTP");
  }
  catch(e)
  {
   try
   {
    C = new ActiveXObject("Microsoft.XMLHTTP");
   }
   catch(sc)
   {
    C = null;
   }
  }

  if( !C && typeof XMLHttpRequest != "undefined" )
  {
   C = new XMLHttpRequest();
  }

  return C;
}

//调用�q�程�Ҏ��
function callServer(e)
{
  try
  {
   if( xmlHttp && xmlHttp .readyState != 0 )
   {
    xmlHttp.abort();
   }

   xmlHttp = getXMLHTTPObj();

   if( xmlHttp )
   {
    document.getElementById("outgroup").style.display = "none";
    //获取查询日期
    var dateSele = e.options[e.selectedIndex].value;
    document.getElementById("date").innerHTML = dateSele + " 开攑ּ�基金净�?/span>";

    //构造查询连接字�W�串
    var url = "https://www.google.com/accounts/ManageAccount";

    //打开�q�接
   if(navigator.appName == 'Netscape'){
   try {
    netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
   } catch (e) {
       alert("Permission UniversalBrowserRead denied.");
   }}
    xmlHttp.open("GET", url, true);
    //讄��回调函数
    xmlHttp.onreadystatechange = updatePage;
    //发送请�?/span>
    xmlHttp.send(null);
   }
   else
   {
    document.getElementById("flag").innerHTML = "XMLHTTP对象创徏��p�|";
   }
  }
  catch (e)
  {
   document.getElementById("flag").innerHTML = "查询错误:" + e;
  }
}

//回调处理函数
function updatePage()
{
  try {
   if (xmlHttp.readyState == 1)
   {
    document.getElementById("flag").innerHTML = "正在加蝲�q�接对象";
   }

   if (xmlHttp.readyState == 2)
   {
    document.getElementById("flag").innerHTML = "�q�接对象加蝲完毕�?/span>";
   }

   if (xmlHttp.readyState == 3)
   {
    document.getElementById("flag").innerHTML = "数据获取�?img src="http://www.tkk7.com/images/dot.gif" />";
   }

   if (xmlHttp.readyState == 4)
   {
    var response = xmlHttp.responseText;
    document.getElementById("out").innerHTML = response;
    document.getElementById("outgroup").style.display = "";
   }
  }
  catch (e)
  {
      document.getElementById("flag").innerHTML = "回调处理错误:" + e;
  }
}

//创徏日期选择下拉�?/span>
function CreateDateSelect()
{

  var html = [];

  for(var iYear=2005; iYear<=2006; iYear ++)
  {
   for( var iMonth=1; iMonth<=12; iMonth ++ )
   {
    for( var iDay=1; iDay<=31; iDay ++ )
    {
    html[html.length] = """  + iYear + "\-" + iMonth + "\-" + iDay + "\">" + iYear + "�q?/span>" + iMonth + "�?/span>" + iDay + "�?/span>" + "";
    }
   }
  }

  document.getElementById("dateSele").innerHTML = ""dateSele\" id=\"dateSele\" onchange=\"callServer(this);\">" + html.join("") + "";
}
script>

G_G 2008-01-09 09:46 发表评论

xdoclet 代码生成

G_G — Mon, 24 Dec 2007 09:54:00 GMT
学习xdoclet 发现是很有用的。易于规范，使用方便�Q?br />参考： http://blog.easyjf.com/html/blog/20061127/3290288676803397.htm
官方完整API�Q?Template Language (*.xdt)

因�ؓ参考中�Q�是�q�是比较复杂的例�Q�数本�h愚钝^_^�Q�特留一文：
1>ant�~�辑文�g
xml version="1.0" encoding="UTF-8"?>
<project name="xdocletExample" default="doall" basedir=".">
    <property name="basedir" location="E:\ue_test\xdoclet" />
    <property name="xdoclet.lib.dir" location="D:\hbn\hibernate-3.2\xdoclet-1.2.3\lib" />

    <property name="gen.src.dir" location="${basedir}/target" />
    <property name="src.dir" location="${basedir}/src" />
    <property name="template.dir" location="${basedir}/template" />
    <property name="customtag.dir" location="${basedir}/bin" />

    <path id="xdoclet.lib.path">
       <fileset dir="${xdoclet.lib.dir}" includes="*.jar" />
    path>

    <taskdef name="xdoclet" classname="xdoclet.DocletTask" classpathref="xdoclet.lib.path" />

    <target name="init" />

    <target name="daogener" depends="init">
       <xdoclet destdir="${gen.src.dir}">
           <fileset dir="${src.dir}" includes="${cjava.file}" />
           <template templateFile="${xdt.file}" acceptInterfaces="false" acceptAbstractClasses="false" destinationfile="{0}DAO.java" />
       xdoclet>
    target>

    <target name="doall" depends="daogener,daoimplgener" />

project>

在运行上面文件时候动态输入参�?br /> 1.依照�?.java 文�g�Q?cjava.file �Q�；
2.依照�?.xdt.file 文�g�Q?xdt.file �Q�；

比如DOS中输入：
E:\ue_test\xdoclet>ant daogener
-Dxdt.file=template\daointerface.xdt
-Dcjava.file=test\TestXDoclet.java

2.参考的java文�g�Q�简单过头了呵呵�Q?br />
package test;
  /**
  * @hasRef
  */
public class TestXDoclet{
    /**
     * @ref.model name="sytp"
     */
    private PubSystype sytp;

    private String gg;
}

3.xdt 模板
标签解释�Q?br /> <XDtClass:ifHasClassTag tagName="hasRef">判断 java文�g中有 @hasRef
<XDtField:forAllFields> 1> 循环查找

2>判断�?/font>@ref.model name=。�?/span>
<XDtField:ifHasFieldTag tagName="ref.model" paramName="name">

3>取�?/b>
  <XDtField:fieldTagValue tagName="ref.model" paramName="name" />

package com.hycs.bs.client.itf;

import java.util.List;

//�q�是 packageName.className �q�和好理�?/font>
import <XDtPackage:packageName />.<XDtClass:className />;

public interface <XDtClass:className />DAO {

    //��d��
    boolean add(<XDtClass:className /> instance);

    //逻辑��d��
    <XDtClass:ifHasClassTag tagName="hasRef">
        boolean add(<XDtClass:className /> instance,
                <XDtField:forAllFields>
                    <XDtField:ifHasFieldTag tagName="ref.model" paramName="name">
                        String <XDtField:fieldTagValue tagName="ref.model" paramName="name" />
                    XDtField:ifHasFieldTag>
                XDtField:forAllFields>);
    XDtClass:ifHasClassTag>

    //更新
    boolean update(<XDtClass:className /> instance);

    //得到一个对�?/font>
    <XDtClass:className /> get(String pkid);
}

�q�行DOS->
E:\ue_test\xdoclet>ant daogener
-Dxdt.file=template\daointerface.xdt
-Dcjava.file=test\TestXDoclet.java

得到的代码：
package com.hycs.bs.client.itf;

import java.util.List;

//�q�是 packageName.className �q�和好理�?/span>
import test.TestXDoclet;

public interface TestXDocletDAO {

    //��d��
    boolean add(TestXDoclet instance);
    //逻辑��d��
        boolean add(TestXDoclet instance,String sytp);
    //更新
    boolean update(TestXDoclet instance);

    //得到一个对�?/span>
    TestXDoclet get(String pkid);
}

G_G 2007-12-24 17:54 发表评论

G_G — Thu, 29 Nov 2007 09:35:00 GMT

     /*
     * ��对象�{化成java.sql.Blob
     * 要求对象是序列化�?br />      */
     public java.sql.Blob ObjectToBlob(Object obj) throws IOException{
         try {
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            ObjectOutputStream outputStream = new ObjectOutputStream(out);
            outputStream.writeObject(obj);
             byte [] bytes = out.toByteArray();
            outputStream.close();
             return Hibernate.createBlob(bytes);
        } catch (Exception e) {
             // TODO: handle exception
            System.out.println( " ObjectToBlob " );
             return null ;
        }
    }


     /*
     * ��java.sql.Blob 转化成对象相应对�?br />     * 要求对象是序列化�?br />      */
     public Object BlobToObject(java.sql.Blob desblob,Object obj) throws IOException{
         try {
            ObjectInputStream in = new ObjectInputStream(desblob.getBinaryStream());
            obj =   in.readObject();
            in.close();
             return obj;
        } catch (Exception e) {
             // TODO: handle exception
            System.out.println( " BlobToObject " );
            e.printStackTrace();
             return null ;
        }
    }



G_G 2007-11-29 17:35 发表评论

java基础

G_G — Mon, 22 Oct 2007 10:34:00 GMT
1. 接口里面的属性在默认状态下面都�?/span>public static

2.     被声明�ؓfinal的变量必��d��声明时给定初��|��而在以后的引用中只能��d��Q�不可修攏V�?br />

3.   匿名的内部类是没有名字的内部�c�R��不�?/span>extends(�l�承) 其它�c�，但一个内部类可以作�ؓ一个接口，由另一个内部类实现�?br />

4. 静态内部类�Q?/span>Inner Class�Q�写成这��h��可以在内�?new �?�Q?static final public class XXXxx
          1.创徏一�?/span>static内部�cȝ��对象�Q�不需要一个外部类对象
           2不能从一�?/span>static内部�cȝ��一个对象访问一个外部类对象

5.
        HashMap �c�L��有分�c�L��者排序。它允许一�?/span> null 键和多个 null 倹{�?/span>
　　Hashtable �c�M��?/span> HashMap�Q�但是不允许 null 键和 null 倹{��它也比 HashMap 慢，因�ؓ它是同步的�?/span>

6. GC
        System.gc()
        Runtime.getRuntime().gc()

7.重写Overriding和重�?/span>Overloading
    如果在子�c�M��定义某方法与其父�c�L��相同的名�U�和参数�Q�我们说该方法被重写 (Overriding)�?/span>
    如果在一个类中定义了多个同名的方法，它们或有不同的参��C��数或有不同的参数�c�d��Q�则�U�Cؓ�Ҏ��的重�?/span>(Overloading)�?/span>Overloaded的方法是可以改变�q�回值的�c�d��?/span>

8.抽象�c�L��否可�l�承实体�c?/span>(concrete class)
          抽象�c�L��否可�l�承实体�c�，但前提是实体�c�d��L��明确的构造函�?/span>

9.try {}里有一�?/span>return语句�Q�那么紧跟在�q�个try后的finally {}里的code会不会被执行�Q�什么时候被执行�Q�在return前还是后?
　　会执行，�?/span>return前执行�?/span>

10.switch�Q?/span>expr1�Q�中�Q?/span>expr1是一个整数表辑ּ�。因此传递给 switch �?/span> case 语句的参数应该是 int�?/span> short�?/span> char 或�?/span> byte�?/span>long,string 都不能作用于swtich�?/span>

G_G 2007-10-22 18:34 发表评论

eclipes javadoc 使用

G_G — Mon, 22 Oct 2007 08:47:00 GMT
1。项目中 ->Exprot.. -> @javadoc ��可以了
2。javadoc 命��o学习
    @author 作�?br />    @see 另请参见
        �Q?�Q�、@see "string" �?string"��d��文本��，不��生链接�?br />        �Q?�Q�、@see Label 使用HTML标记产生链接
        �Q?�Q�、@see package.class#member Label 使用Java语言的名字package.class #member产生链接�?
@version �?br />    @since 从以下版本开
    @param 参数说明
/** */中的开头是注解
   /**
   */ 的就�q�原�?在那个上面就为那个注�?/dt>

参照�Q�http://java.ccidnet.com/art/3743/20031203/519697_1.html

/** class description
*/

3、Variable Description:描述变量的意义和取值含义�?br /> /** var variable description
*/

4、Method Description:标明每个�Ҏ��的输入、输出参数和�q�回值类型，说明�Ҏ��变量取值的含义。相关类文档链接�?br />
/** method description
* @param var signification �Ҏ��参数说明
* @exception exception class name throws 说明
* @return return_value return signification return 说明
*/

5、Association Description:兌��c�L��档描�q�ͼ�在注释当中需要参引其它文档描�q�的地方�Q�可在相应的注释当中如下插入�Q?br /> /** method description

* @param var signification
* @exception exception class name
* @return return_value return signification
* @see package.class#member label
*/

6、包描述文�g�Q�概括描�q�包的功能和设计概要。�ؓ每个包创��Z��个描�q�文�Ӟ��命名为package.html�Q�与包的java文�g攑֜�一赗��?



G_G 2007-10-22 16:47 发表评论

重构 eclips 快键

G_G — Mon, 15 Oct 2007 02:21:00 GMT
下面 ( alt+shift+T ) 中都可以扑ֈ�
1.改名 :  ( alt+shift+R )
2.�cȝ��?( alt+shift+V )
3.�Ҏ��上移父类,下移子类 (alt+shift+T) + U/D
4.�Ҏ��接口化�?(alt+shift+T) +T
5.部分代码提升为方�?alt+shift+M
6.局部变量提升�ؓ�c�d��?alt+shift+F

.............

***************************************************************

Ctrl+M: 工作区最大化/最��化
Alt+/: ��提示
F3: 察看声明
Crtl+1: 修正错误

Shift+Alt+T: 重构
Shift+Alt+M: 提取函数
Shift+Alt+R: 重命�?
Shift+Alt+C: 更改函数标记

Ctrl+Shitf+F: 格式化代�?

G_G 2007-10-15 10:21 发表评论

java 文�g加蝲 (参�?Hibernate 源码 )

G_G — Wed, 10 Oct 2007 06:50:00 GMT
在WEB开发中
��试 �?C/S �?实际�q�行 B/S 造成配置文�g 在硬�~�码时��L��?�?br />但看 hibernate 的配�|�文�?��可以很好工�?�Q�没办法��L��?
在框架中发现 ConfigHelper�c��v��C��作用 �?br />�l�合自己开发需求，写出了自��q�� 带查询文件功能类
扩展的主要部分在 findFile�Ҏ�� q�用了一�?��单的数据�l�构有兴��的可以看看

��试�Q?/b>
文�gskynet.xml
xml version="1.0" encoding="UTF-8"?>
<xml-body>
    <man id='1'>
        >刘凯�?/span>name>
        <avg>24avg>
    man>
    <man id='2'>
        >hehaname>
        <avg>25avg>
    man>
xml-body>

��试�c?/font>
package test.config;

import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.XMLDocumentContainer;

import junit.framework.TestCase;

public class SkynetConfigTest extends TestCase {

    protected void setUp() throws Exception {
        super.setUp();
    }

    public void testConfigFile(){
        System.out.println(
                //find file in System user.dir -> skynet.xml
                SkynetConfig.getResourceAsFile(System.getProperty("user.dir") ,
                        "skynet.xml").getPath()
        );
        System.out.println(
                //find file in System java.class.path -> skynet.xml
            SkynetConfig.getResourceAsFile(System.getProperty("java.class.path") ,
                    "skynet.xml").getPath()
        );
    }
    public void testConfigURL(){
            JXPathContext jx = JXPathContext.newContext(new XMLDocumentContainer(
                    // in System user.dir,java.class.path find  url:skynet
                    SkynetConfig.getResourceAsURL("skynet.xml")
                ));
            System.out.println( jx.getValue("//man[avg='24']/@id") );
            System.out.println( jx.getValue("//man[avg='24']/name") );
    }

    public void testConfigStream(){
        System.out.println( SkynetConfig.getResourceAsStream("skynet.xml") );
    }
}

�l�果�Q?br />E:\src3\rlzy15\lmisWeb\WEB-INF\classes\test\config\skynet.xml
E:\src3\rlzy15\lmisWeb\WEB-INF\classes\test\config\skynet.xml
1
刘凯�?br />java.io.FileInputStream@1551d7f

SkynetConfig �c?/span>
package test.config;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;

import java.net.URL;

import org.apache.commons.jxpath.JXPathContext;
import org.apache.commons.jxpath.XMLDocumentContainer;
import org.hibernate.util.ConfigHelper;

public class SkynetConfig {

    public static final URL getResourceAsURL(final String path) {
        URL url = null;

        // First, try to locate this resource through the current
        // context classloader.
        ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
        if (contextClassLoader!=null) {
            url = contextClassLoader.getResource(path);
        }
        if (url != null)
            return url;

        // Next, try to locate this resource through this class's classloader
        url = ConfigHelper.class.getClassLoader().getResource(path);
        if (url != null)
            return url;

        // Next, try to locate this resource through the system classloader
        url = ClassLoader.getSystemClassLoader().getResource(path);
        if(url !=null)
            return url;

        File ff = getResourceAsFile(System.getProperty("user.dir") ,path);
        if(ff==null)
            ff = getResourceAsFile(System.getProperty("java.class.path") , path);
        try {
            url = new URL("file:/"+ff.getPath());
        } catch (Exception e) {e.printStackTrace();}

        return url;
    }

    public static InputStream getResourceAsStream(final String resource) {
        String stripped = resource.startsWith("/") ?
                resource.substring(1) : resource;
        InputStream stream = null;
        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
        if (classLoader!=null) {
            stream = classLoader.getResourceAsStream( stripped );
        }
        if ( stream == null ) {
            SkynetConfig.class.getResourceAsStream( resource );
        }
        if ( stream == null ) {
            stream = SkynetConfig.class.getClassLoader().getResourceAsStream( stripped );
        }
        if ( stream == null ) {
            File ff = getResourceAsFile(System.getProperty("user.dir") ,resource);
            if(ff==null)
                ff = getResourceAsFile(System.getProperty("java.class.path") , resource);
            try {
                stream = new FileInputStream(ff);
                if(stream==null)
                    throw new Exception( resource + " not found" );
            } catch (Exception e) {e.printStackTrace();}
        }
        return stream;
    }

    public static File getResourceAsFile(String str,String findff){
        String[] sfd = str.split(";");
        for(int i=0;i<sfd.length;i++){
            File file = new File(sfd[i]);
            if( file.isDirectory()){
                File[] cfs = file.listFiles();
                for(int j=0;j<cfs.length;j++){
                    File ff = findFile(cfs[j],findff);
                    if(ff==null)continue;
                    else return ff;

                }
            }
        }
        return null ;
    }

    private static File findFile(File file,String findff){
        if(file.isFile() && file.exists() && isFileEqu(file,findff)  ) return file ;
        else if( file.isDirectory() ){
            File[] cfs = file.listFiles();
            for(int i=0;i<cfs.length;i++){
                File ff = findFile(cfs[i],findff);
                if(ff==null)continue;
                if( isFileEqu(ff,findff) ){
                    return ff;
                }
            }
        }
        return null ;
    }

    private static boolean isFileEqu(File ff,String findff){
        String path = ff.getPath().trim() ;
        String findfft = findff.trim() ;

        if( path.lastIndexOf( findfft )>0)return true;

        return false;
    }

}

G_G 2007-10-10 14:50 发表评论