随笔-109  评论-187  文章-25  trackbacks-0
  2007年8月10日
转贴一个北京英语角，是一个北京免费的英语角。
利用免费的英语角把英语练好

北京  也乐英语为了满足广大英语爱好者的需要特推出周末免费英语角服务，

北京英语角的组织形式如下：

    1：由也乐英语派出一名外教和一名助理负责组织英语角的活动。

    2: 英语角每周组织一次活动，也乐英语培训学校提供一间教室为大家的活动场所。

    3：英语爱好者可以免费参加英语角的活动，不收取任何费用，此活动是公益活动，也乐英

语不收取任何费用，也不限制参加次数。

    4：也乐英语免费提供给英语爱好者茶水、咖啡、以及活动所采用的书籍报纸。

    5：每周一到2个话题，由外教提前一周告诉大家，大家可以简单准备，以便在课堂上
        跟外教以及同学交流。
   
    6：外教会纠正大家的发音、语法、词汇上的错误，会形成一些总结，也希望大家能够畅所

欲言，大胆的说英语。

     7：所有参加英语角的爱好者，请您在交流期间把手机调为静音。

     也乐英语地址：北京丰台区马家堡西路15号 时代风帆大厦2区1901
     交通状况：地铁四号线角门西站A口上楼即可。 51、501、54、529、698、646、707 嘉园

二里东门下车
     联系电话：010-58423871  15330275871

      此活动由于报名数量众多，所以需要大家提前预约。
      也乐英语网站：www.yellenglish.com
      也乐英语 争做北京最好的英语角.
posted @ 2011-06-19 09:35 小小程序程序员混口饭吃 阅读(2073) | 评论 (0) | 编辑 收藏
oracle 收购sun带来的影响
我认为最大的冲击莫过于 惠普，oracle跟惠普的直接竞争会加大，从合作变为竞争，我认为惠普如果不收购redhat来对抗，未来肯定落下风！
posted @ 2009-04-22 09:56 小小程序程序员混口饭吃 阅读(624) | 评论 (0) | 编辑 收藏
用JACORB开发corba应用
     摘要: 上篇文章讲述了jacorb 的配置，本章讲叙其应用，随后的几篇文章会重点讲述corba的开发   JACORB开发以及corba的请求方式：    JacORB的应用开发一般分为以下五步： 1.写IDL接口定义 2.编译IDL接口定义生成Java类 3.实现步骤2中生成的接口 4.写服务器启动类，并注册到ORB 5.写客户端去获取服务对象引用 &nb...  阅读全文
posted @ 2007-11-22 10:41 小小程序程序员混口饭吃 阅读(8251) | 评论 (2) | 编辑 收藏
用JACORB搭建一个corba的开发环境

                   how to setup jacorb dev env
1:download JacORB_2_2

       http://www.jacorb.org/download.html
  download ant
       http://ant.apache.org/bindownload.cgi

2:extact JacORB_2_2.jar to d:\JacORB_2_2

3:setup sys environment

       set ANT_HOME=
       set JAVA_HOME=
       set JACORB_HOME=d:\JacORB_2_2
       set PATH=%PATH%;%ANT_HOME%\bin;%JAVA_HOME%\bin;%JACORB_HOME%\bin;
       set CLASSPAHT=.;%CLASSPAHT%;%ANT_HOME%\lib\ant.jar;%JACORB_HOME%\lib\jarorb.jar;%JACORB_HOME%\lib\idl.jar\;%JACORB_HOME%\lib\logkit-1.2.jar

4:rename %JACORB_HOME%\etc\jacorb_properties.template to %JACORB_HOME%\etc\jacorb.properties
  and modify the 50th line to 53th line to
 
       #ORBInitRef.NameService=file:/y:/nsiona.ref
      
ORBInitRef.NameService=file://d://test//NS_Ref
      
#ORBInitRef.NameService=http://www.x.y.z/~user/NS_Ref
      
#ORBInitRef.TradingService=http://www.x.y.z/~user/TraderRef
 
  modify 618th line to
       jacorb.naming.ior_filename=d://test//NS_Ref

5:rename  %JACORB_HOME%\jacotemplate.bat to %JACORB_HOME%\jaco.bat
 
  and modify related env variable
 
  rename   %JACORB_HOME%\idltemplate.bat to %JACORB_HOME%\idl.bat
  
  and modify related env variable

 

6:  use ant compile and build idl and java


     cd  %JACORB_HOME%\demo\grid  

     run ant
   
     the generate class file in %JACORB_HOME%\classes  and generated java file in %JACORB_HOME%\demo\grid


7: open a new cmd window:
          cd %JACORB_HOME%   ns
 
   you can see the following result:   
       [ configuration jacorb loaded from file %JAORB_HOME%\etc\jacorb.properties]

   open a new cmd window:
          cd %JACORB_HOME%   jaco demo.grid.Server
  you can see the following result:   
  [ configuration jacorb loaded from file %JAORB_HOME%\etc\jacorb.properties]
  
  open a new cmd window:
          cd %JACORB_HOME%   jaco demo.grid.client
    you can see the following result:   
 
  [ configuration jacorb loaded from file D:\work\nj\JACORB\etc\jacorb.properties]
   Height = 31
   Width = 14
   Old value at (30,13): 0.21
   Setting (30,13) to 470.11
   New value at (30,13): 470.11
   MyException, reason: This is only a test exception, no harm done :-)
   done.

posted @ 2007-11-21 10:36 小小程序程序员混口饭吃 阅读(4219) | 评论 (4) | 编辑 收藏
Oracle 语法之 OVER (PARTITION BY ..) 及开窗函数 转载
 
oracle的分析函数over 及开窗函数
一：分析函数over
Oracle从8.1.6开始提供分析函数，分析函数用于计算基于组的某种聚合值，它和聚合函数的不同之处是
对于每个组返回多行，而聚合函数对于每个组只返回一行。
下面通过几个例子来说明其应用。                                       
1：统计某商店的营业额。        
     date       sale
     1           20
     2           15
     3           14
     4           18
     5           30
    规则：按天统计：每天都统计前面几天的总额
    得到的结果：
    DATE   SALE       SUM
    ----- -------- ------
    1      20        20           --1天           
    2      15        35           --1天＋2天           
    3      14        49           --1天＋2天＋3天           
    4      18        67            .          
    5      30        97            .
     
2:统计各班成绩第一名的同学信息
    NAME   CLASS S                         
    ----- ----- ----------------------
    fda    1      80                     
    ffd    1      78                     
    dss    1      95                     
    cfe    2      74                     
    gds    2      92                     
    gf     3      99                     
    ddd    3      99                     
    adf    3      45                     
    asdf   3      55                     
    3dd    3      78              
   
    通过：   
    --
    select * from                                                                       
    (                                                                            
    select name,class,s,rank()over(partition by class order by s desc) mm from t2
    )                                                                            
    where mm=1
    --
    得到结果：
    NAME   CLASS S                       MM                                                                                        
    ----- ----- ---------------------- ----------------------
    dss    1      95                      1                      
    gds    2      92                      1                      
    gf     3      99                      1                      
    ddd    3      99                      1          
   
    注意：
    1.在求第一名成绩的时候，不能用row_number()，因为如果同班有两个并列第一，row_number()只返回一个结果          
    2.rank()和dense_rank()的区别是：
      --rank()是跳跃排序，有两个第二名时接下来就是第四名
      --dense_rank()l是连续排序，有两个第二名时仍然跟着第三名
     
     
3.分类统计 (并显示信息)
    A   B   C                      
    -- -- ----------------------
    m   a   2                      
    n   a   3                      
    m   a   2                      
    n   b   2                      
    n   b   1                      
    x   b   3                      
    x   b   2                      
    x   b   4                      
    h   b   3
   select a,c,sum(c)over(partition by a) from t2                
   得到结果：
   A   B   C        SUM(C)OVER(PARTITIONBYA)      
   -- -- ------- ------------------------
   h   b   3        3                        
   m   a   2        4                        
   m   a   2        4                        
   n   a   3        6                        
   n   b   2        6                        
   n   b   1        6                        
   x   b   3        9                        
   x   b   2        9                        
   x   b   4        9                        
  
   如果用sum，group by 则只能得到
   A   SUM(C)                            
   -- ----------------------
   h   3                      
   m   4                      
   n   6                      
   x   9                      
   无法得到B列值       
  
＝＝＝＝＝

select * from test

数据:
A B C
1 1 1
1 2 2
1 3 3
2 2 5
3 4 6


---将B栏位值相同的对应的C 栏位值加总
select a,b,c, SUM(C) OVER (PARTITION BY B) C_Sum
from test

A B C C_SUM
1 1 1 1
1 2 2 7
2 2 5 7
1 3 3 3
3 4 6 6



---如果不需要已某个栏位的值分割,那就要用 null

eg: 就是将C的栏位值summary 放在每行后面

select a,b,c, SUM(C) OVER (PARTITION BY null) C_Sum
from test

A B C C_SUM
1 1 1 17
1 2 2 17
1 3 3 17
2 2 5 17
3 4 6 17

 

求个人工资占部门工资的百分比

SQL> select * from salary;

NAME DEPT SAL
---------- ---- -----
a 10 2000
b 10 3000
c 10 5000
d 20 4000

SQL> select name,dept,sal,sal*100/sum(sal) over(partition by dept) percent from salary;

NAME DEPT SAL PERCENT
---------- ---- ----- ----------
a 10 2000 20
b 10 3000 30
c 10 5000 50
d 20 4000 100

二：开窗函数           
      开窗函数指定了分析函数工作的数据窗口大小，这个数据窗口大小可能会随着行的变化而变化，举例如下：
1：     
   over（order by salary） 按照salary排序进行累计，order by是个默认的开窗函数
   over（partition by deptno）按照部门分区
2：
  over（order by salary range between 5 preceding and 5 following）
   每行对应的数据窗口是之前行幅度值不超过5，之后行幅度值不超过5
   例如:对于以下列
     aa
     1
     2
     2
     2
     3
     4
     5
     6
     7
     9
   
   sum(aa)over（order by aa range between 2 preceding and 2 following）
   得出的结果是
            AA                       SUM
            ---------------------- -------------------------------------------------------
            1                       10                                                      
            2                       14                                                      
            2                       14                                                      
            2                       14                                                      
            3                       18                                                      
            4                       18                                                      
            5                       22                                                      
            6                       18                                                                
            7                       22                                                                
            9                       9                                                                 
             
   就是说，对于aa=5的一行 ，sum为   5-1<=aa<=5+2 的和
   对于aa=2来说 ，sum=1+2+2+2+3+4=14     ；
   又如 对于aa=9 ，9-1<=aa<=9+2 只有9一个数，所以sum=9    ；
              
3：其它：
     over（order by salary rows between 2 preceding and 4 following）
          每行对应的数据窗口是之前2行，之后4行
4：下面三条语句等效：           
     over（order by salary rows between unbounded preceding and unbounded following）
          每行对应的数据窗口是从第一行到最后一行，等效：
     over（order by salary range between unbounded preceding and unbounded following）
           等效
     over(partition by null)
posted @ 2007-11-13 13:33 小小程序程序员混口饭吃 阅读(50005) | 评论 (13) | 编辑 收藏
JMS复习

由于一些原因，最近要复习一些东西，所以就把JMS的东西再复习一遍，以下便是例子

jms 中最重要的几个概念destination，ACKNOWLEDGE，subscribe,durable subscribe

destination：topic queque
  queue简单点说就是1:1 一个消息只能由一个consumer去消费，别的consumer来消费的时候已经没了，先到先得
topic简单点说就是1:N 一个消息可以由多个consumer来消费，谁来消费都有
 subscribe，拿topic来说如果当前订阅不是持久订阅，只有再订阅后生产者生产得消息才能被consumer得到，持久订阅只要没有被consumer消费，早晚会消费这个消息
 
 
 
 一下是几个例子
 
 queuesend：queque消息产生
 queuereceive：queque消息得消费
 topicsend ：topic消息得产生
 topicreceive1：topic消息的非订阅
 topicrecieve2：topic消息的持久订阅
 
 这个例子实在WEBLOGIC814上测试过的，当然要定义JMSSERVER,FACTORY,DESTINATION。
 
 
 
 QueueSend
 
 import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueSender;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class QueueSend {
 // Defines the JNDI context factory.
 public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

 // Defines the JNDI provider url.
 public final static String PROVIDER_URL = " t3://localhost:7001";

 // Defines the JMS connection factory for the queue.
 public final static String JMS_FACTORY = "SendJMSFactory";

 // Defines the queue.
 public final static String QUEUE = "SendJMSQueue";

 private QueueConnectionFactory qconFactory;

 private QueueConnection qcon;

 private QueueSession qsession;

 private QueueSender qsender;

 private Queue queue;

 private TextMessage msg;

 /**
  * Creates all the necessary objects for sending messages to a JMS queue.
  *
  * @param ctx
  *            JNDI initial context
  * @param queueName
  *            name of queue
  * @exception NamingException
  *                if operation cannot be performed
  * @exception JMSException
  *                if JMS fails to initialize due to internal error
  */
 public void init(Context ctx, String queueName) throws NamingException,
   JMSException {
  qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
  qcon = qconFactory.createQueueConnection();
  qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
  queue = (Queue) ctx.lookup(queueName);
  qsender = qsession.createSender(queue);
  msg = qsession.createTextMessage();
  qcon.start();
 }

 /**
  * Sends a message to a JMS queue.
  *
  * @param message
  *            message to be sent
  * @exception JMSException
  *                if JMS fails to send message due to internal error
  */
 public void send(String message) throws JMSException {
  msg.setText(message);
  qsender.send(msg);
 }

 /**
  * Closes JMS objects.
  *
  * @exception JMSException
  *                if JMS fails to close objects due to internal error
  */
 public void close() throws JMSException {
  qsender.close();
  qsession.close();
  qcon.close();
 }

 /**
  * main() method.
  *
  * @param args
  *            WebLogic Server URL
  * @exception Exception
  *                if operation fails
  */
 public static void main(String[] args) throws Exception {
  try {
   InitialContext ic = getInitialContext();
   QueueSend qs = new QueueSend();
   qs.init(ic, QUEUE);
   readAndSend(qs);
   qs.close();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

 private static void readAndSend(QueueSend qs) throws IOException,
   JMSException {
  BufferedReader msgStream = new BufferedReader(new InputStreamReader(
    System.in));
  String line = null;
  boolean quitNow = false;
  do {
   System.out.print("Enter message (\"quit\" to quit): ");
   line = msgStream.readLine();
   if (line != null && line.trim().length() != 0) {
    qs.send(line);
    System.out.println("JMS Message Sent: " + line + "\n");
    quitNow = line.equalsIgnoreCase("quit");
   }
  } while (!quitNow);

 }

 private static InitialContext getInitialContext() throws NamingException {
  Hashtable env = new Hashtable();
  env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
  env.put(Context.PROVIDER_URL, PROVIDER_URL);
  return new InitialContext(env);
 }

}


QueueReceive

import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.Queue;
import javax.jms.QueueConnection;
import javax.jms.QueueConnectionFactory;
import javax.jms.QueueReceiver;
import javax.jms.QueueSession;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class QueueReceive implements MessageListener {
 // Defines the JNDI context factory.
 public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

 // Defines the JNDI provider url.
 public final static String PROVIDER_URL = " t3://localhost:7001";

 // Defines the JMS connection factory for the queue.
 public final static String JMS_FACTORY = "SendJMSFactory";

 // Defines the queue.
 public final static String QUEUE = "SendJMSQueue";

 private QueueConnectionFactory qconFactory;

 private QueueConnection qcon;

 private QueueSession qsession;

 private QueueReceiver qreceiver;

 private Queue queue;

 private boolean quit = false;

 /**
  * Message listener interface.
  *
  * @param msg
  *            message
  */
 public void onMessage(Message msg) {
  try {
   String msgText;
   if (msg instanceof TextMessage) {
    msgText = ((TextMessage) msg).getText();
   } else {
    msgText = msg.toString();
   }

   System.out.println("Message Received: " + msgText);

//   if (msgText.equalsIgnoreCase("123")) {
//    synchronized (this) {
//     quit = true;
//     this.notifyAll(); // Notify main thread to quit
//    }
//   }
  } catch (JMSException jmse) {
   jmse.printStackTrace();
  }
 }

 /**
  * Creates all the necessary objects for receiving messages from a JMS
  * queue.
  *
  * @param ctx
  *            JNDI initial context
  * @param queueName
  *            name of queue
  * @exception NamingException
  *                if operation cannot be performed
  * @exception JMSException
  *                if JMS fails to initialize due to internal error
  */
 public void init(Context ctx, String queueName) throws NamingException,
   JMSException {
  qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
  qcon = qconFactory.createQueueConnection();
  qsession = qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
  queue = (Queue) ctx.lookup(queueName);
  qreceiver = qsession.createReceiver(queue);
  qreceiver.setMessageListener(this);
  qcon.start();
 }

 /**
  * Closes JMS objects.
  *
  * @exception JMSException
  *                if JMS fails to close objects due to internal error
  */
 public void close() throws JMSException {
  qreceiver.close();
  qsession.close();
  qcon.close();
 }

 /**
  * main() method.
  *
  * @param args
  *            WebLogic Server URL
  * @exception Exception
  *                if execution fails
  */

 public static void main(String[] args) throws Exception {

  InitialContext ic = getInitialContext();
  QueueReceive qr = new QueueReceive();
  qr.init(ic, QUEUE);

  System.out
    .println("JMS Ready To Receive Messages (To quit, send a \"quit\" message).");

  // Wait until a "quit" message has been received.
  synchronized (qr) {
   System.out.println("111111111111");
   while (!qr.quit) {
    try {
     System.out.println("2222222222");
     qr.wait();
     System.out.println("333333333");
    } catch (InterruptedException ie) {
    }
   }
  }
  qr.close();
 }

 private static InitialContext getInitialContext() throws NamingException {
  Hashtable env = new Hashtable();
  env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
  env.put(Context.PROVIDER_URL, PROVIDER_URL);
  return new InitialContext(env);
 }

}

 

TopicSend

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicSession;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.jms.TopicPublisher;
public class TopicSend {
 // Defines the JNDI context factory.
 public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

 // Defines the JNDI provider url.
 public final static String PROVIDER_URL = " t3://localhost:7001";

 // Defines the JMS connection factory for the queue.
 public final static String JMS_FACTORY = "SendJMSFactory";

 // Defines the queue.
 public final static String TOPIC = "SendJMSTopic";

 private TopicConnectionFactory tconFactory;

 private TopicConnection tcon;

 private TopicSession tsession;

 private TopicPublisher tsender;

 private Topic topic;

 private TextMessage msg;
 public static InitialContext ic ;

 /**
  * Creates all the necessary objects for sending messages to a JMS queue.
  *
  * @param ctx
  *            JNDI initial context
  * @param queueName
  *            name of queue
  * @exception NamingException
  *                if operation cannot be performed
  * @exception JMSException
  *                if JMS fails to initialize due to internal error
  */
 public void init(Context ctx, String queueName) throws NamingException,
   JMSException {
  tconFactory = (TopicConnectionFactory) ctx.lookup(JMS_FACTORY);
  tcon = tconFactory.createTopicConnection();
  tsession = tcon.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
  System.out.println(topic);
  topic = (Topic) ctx.lookup(queueName);
  System.out.println(topic);
  tsender = tsession.createPublisher(topic);
  msg = tsession.createTextMessage();
  tcon.start();
 }

 /**
  * Sends a message to a JMS queue.
  *
  * @param message
  *            message to be sent
  * @exception JMSException
  *                if JMS fails to send message due to internal error
  */
 public void send(String message) throws JMSException ,NamingException{
  System.out.println(topic+"-----------");
  msg.setText(message);
  tsender.publish(msg);
 }

 /**
  * Closes JMS objects.
  *
  * @exception JMSException
  *                if JMS fails to close objects due to internal error
  */
 public void close() throws JMSException {
  tsender.close();
  tsession.close();
  tcon.close();
 }

 /**
  * main() method.
  *
  * @param args
  *            WebLogic Server URL
  * @exception Exception
  *                if operation fails
  */
 public static void main(String[] args) throws Exception {
  try {
   ic= getInitialContext();
   TopicSend ts = new TopicSend();
   ts.init(ic, TOPIC);
   readAndSend(ts);
   ts.close();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }

 private static void readAndSend(TopicSend ts) throws IOException,
   JMSException,NamingException {
  BufferedReader msgStream = new BufferedReader(new InputStreamReader(
    System.in));
  String line = null;
  boolean quitNow = false;
  do {
   System.out.print("Enter message (\"quit\" to quit): ");
   line = msgStream.readLine();
   if (line != null && line.trim().length() != 0) {
    ts.send(line);
   
    System.out.println("JMS Message Sent: " + line + "\n");
    quitNow = line.equalsIgnoreCase("quit");
   }
  } while (!quitNow);

 }

 private static InitialContext getInitialContext() throws NamingException {
  Hashtable env = new Hashtable();
  env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
  env.put(Context.PROVIDER_URL, PROVIDER_URL);
  return new InitialContext(env);
 }

}

 

TopicReceive1

import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageListener;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicSession;
import javax.jms.TopicSubscriber;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;


public class TopicReceive1 implements MessageListener {
 // Defines the JNDI context factory.
 public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

 // Defines the JNDI provider url.
 public final static String PROVIDER_URL = " t3://localhost:7001";

 // Defines the JMS connection factory for the queue.
 public final static String JMS_FACTORY = "SendJMSFactory";

 // Defines the queue.
 public final static String TOPIC = "SendJMSTopic";

 private TopicConnectionFactory tconFactory;

 private TopicConnection tcon;

 private TopicSession tsession;

 private TopicSubscriber tsubscriber;

 private Topic topic;

 private boolean quit = false;

 /**
  * Message listener interface.
  *
  * @param msg
  *            message
  */
 public void onMessage(Message msg) {
  System.out.println("===================");
  try {
   String msgText;
   if (msg instanceof TextMessage) {
    msgText = ((TextMessage) msg).getText();
   } else {
    msgText = msg.toString();
   }

   System.out.println("Message Received: " + msgText);

//   if (msgText.equalsIgnoreCase("123")) {
//    synchronized (this) {
//     quit = true;
//     this.notifyAll(); // Notify main thread to quit
//    }
//   }
  } catch (JMSException jmse) {
   jmse.printStackTrace();
  }
 }

 /**
  * Creates all the necessary objects for receiving messages from a JMS
  * queue.
  *
  * @param ctx
  *            JNDI initial context
  * @param queueName
  *            name of queue
  * @exception NamingException
  *                if operation cannot be performed
  * @exception JMSException
  *                if JMS fails to initialize due to internal error
  */
 public void init(Context ctx, String queueName) throws NamingException,
   JMSException {
  tconFactory = (TopicConnectionFactory) ctx.lookup(JMS_FACTORY);
  tcon = tconFactory.createTopicConnection();
  tsession = tcon.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
  topic = (Topic) ctx.lookup(queueName);
  tsubscriber = tsession.createSubscriber(topic);
  //System.out.println("12");
  //Message msg = treceiver.receive();
  //msg.acknowledge();
  //tsubscriber = tsession.createSubscriber(topic);Message msg = tsubscriber.receive();msg.acknowledge();
  //System.out.println(msg);
  tsubscriber.setMessageListener(this);
  tcon.start();
 }

 /**
  * Closes JMS objects.
  *
  * @exception JMSException
  *                if JMS fails to close objects due to internal error
  */
 public void close() throws JMSException {
  tsubscriber.close();
  tsession.close();
  tcon.close();
 }

 /**
  * main() method.
  *
  * @param args
  *            WebLogic Server URL
  * @exception Exception
  *                if execution fails
  */

 public static void main(String[] args) throws Exception {

  InitialContext ic = getInitialContext();
  TopicReceive1 tr1 = new TopicReceive1();
  tr1.init(ic, TOPIC);

  System.out
    .println("JMS Ready To Receive Messages (To quit, send a \"quit\" message).");
  
  

  // Wait until a "quit" message has been received.
//  synchronized (tr1) {
//   System.out.println("111111111111");
//   while (!tr1.quit) {
//    try {
//     System.out.println("2222222222");
//     tr1.wait();
//     System.out.println("333333333");
//    } catch (InterruptedException ie) {
//    }
//   }
//  }
  tr1.close();
 }

 private static InitialContext getInitialContext() throws NamingException {
  Hashtable env = new Hashtable();
  env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
  env.put(Context.PROVIDER_URL, PROVIDER_URL);
  return new InitialContext(env);
 }

}


TopicReceive2


import java.util.Hashtable;

import javax.jms.JMSException;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.jms.Topic;
import javax.jms.TopicConnection;
import javax.jms.TopicConnectionFactory;
import javax.jms.TopicSession;
import javax.jms.TopicSubscriber;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;


public class TopicReceive2 {
 // Defines the JNDI context factory.
 public final static String JNDI_FACTORY = "weblogic.jndi.WLInitialContextFactory";

 // Defines the JNDI provider url.
 public final static String PROVIDER_URL = " t3://localhost:7001";

 // Defines the JMS connection factory for the queue.
 public final static String JMS_FACTORY = "SendJMSFactory";

 // Defines the queue.
 public final static String TOPIC = "SendJMSTopic";

 private TopicConnectionFactory tconFactory;

 private TopicConnection tcon;

 private TopicSession tsession;

 private TopicSubscriber tsubscriber;

 private Topic topic;

 private boolean quit = false;


 /**
  * Creates all the necessary objects for receiving messages from a JMS
  * queue.
  *
  * @param ctx
  *            JNDI initial context
  * @param queueName
  *            name of queue
  * @exception NamingException
  *                if operation cannot be performed
  * @exception JMSException
  *                if JMS fails to initialize due to internal error
  */
 public void init(Context ctx, String queueName) throws NamingException,
   JMSException,InterruptedException {
  tconFactory = (TopicConnectionFactory) ctx.lookup(JMS_FACTORY);
  tcon = tconFactory.createTopicConnection();
  tcon.setClientID("IP10.200.7.104");
  tcon.start();
  
  tsession = tcon.createTopicSession(false, Session.AUTO_ACKNOWLEDGE);
  System.out.println("333333333333");
  topic = (Topic) ctx.lookup(queueName);
  //tsubscriber = tsession.createSubscriber(topic);
  tsubscriber= tsession.createDurableSubscriber(topic,"88888");
   for (int i=0; i<3; i++) {
             //
             TextMessage message = (TextMessage) tsubscriber.receive();
             System.out.println("message["+i+"]: " + message.getText());
         }
          Thread.sleep(10000);
  //System.out.println("12");
  //Message msg = treceiver.receive();
  //msg.acknowledge();
  //tsubscriber = tsession.createSubscriber(topic);Message msg = tsubscriber.receive();msg.acknowledge();
  //System.out.println(msg);

 }

 /**
  * Closes JMS objects.
  *
  * @exception JMSException
  *                if JMS fails to close objects due to internal error
  */
 public void close() throws JMSException {
  tsubscriber.close();
  tsession.close();
  tcon.close();
 }

 /**
  * main() method.
  *
  * @param args
  *            WebLogic Server URL
  * @exception Exception
  *                if execution fails
  */

 public static void main(String[] args) throws Exception {

  InitialContext ic = getInitialContext();
  TopicReceive2 tr2 = new TopicReceive2();
  tr2.init(ic, TOPIC);

  System.out
    .println("JMS Ready To Receive Messages (To quit, send a \"quit\" message).");
  
  

  // Wait until a "quit" message has been received.
//  synchronized (tr1) {
//   System.out.println("111111111111");
//   while (!tr1.quit) {
//    try {
//     System.out.println("2222222222");
//     tr1.wait();
//     System.out.println("333333333");
//    } catch (InterruptedException ie) {
//    }
//   }
//  }
  tr2.close();
 }

 private static InitialContext getInitialContext() throws NamingException {
  Hashtable env = new Hashtable();
  env.put(Context.INITIAL_CONTEXT_FACTORY, JNDI_FACTORY);
  env.put(Context.PROVIDER_URL, PROVIDER_URL);
  return new InitialContext(env);
 }

}

posted @ 2007-08-15 09:20 小小程序程序员混口饭吃 阅读(1156) | 评论 (0) | 编辑 收藏
Linux下软件安装方法总结(转)

一、rpm包安装方式步骤：
引用:

1、找到相应的软件包，比如soft.version.rpm，下载到本机某个目录；

2、打开一个终端，su -成root用户；

3、cd soft.version.rpm所在的目录；

4、输入rpm -ivh soft.version.rpm




二、deb包安装方式步骤：

引用:
1、找到相应的软件包，比如soft.version.deb，下载到本机某个目录；

2、打开一个终端，su -成root用户；

3、cd soft.version.deb所在的目录；

4、输入dpkg -i soft.version.deb




三、tar.gz源代码包安装方式：

引用:
1、找到相应的软件包，比如soft.tar.gz，下载到本机某个目录；

2、打开一个终端，su -成root用户；

3、cd soft.tar.gz所在的目录；

4、tar -xzvf soft.tar.gz //一般会生成一个soft目录

5、cd soft

6、./configure

7、make

8、make install




四、tar.bz2源代码包安装方式：

引用:
1、找到相应的软件包，比如soft.tar.bz2，下载到本机某个目录；

2、打开一个终端，su -成root用户；

3、cd soft.tar.bz2所在的目录；

4、tar -xjvf soft.tar.bz2 //一般会生成一个soft目录

5、cd soft

6、./configure

7、make

8、make install




五、apt方式安装：

引用:
1、打开一个终端，su -成root用户；

2、apt-cache search soft 注：soft是你要找的软件的名称或相关信息

3、如果2中找到了软件soft.version，则用apt-get install soft.version命令安装软件 注：只要你可以上网，只需要用apt-cache search查找软件，用apt-get install软件




六、bin文件安装：

如果你下载到的软件名是soft.bin，一般情况下是个可执行文件，安装方法如下：

引用:
1、打开一个终端，su -成root用户；

2、chmod +x soft.bin

3、./soft.bin //运行这个命令就可以安装软件了




七、不需要安装的软件：

有了些软件，比如lumaqq，是不需要安装的，自带jre解压缩后可直接运行。假设下载的是lumaqq.tar.gz，使用方法如下：

引用:
1、打开一个终端，su -成root用户；

2、tar -xzvf lumaqq.tar.gz //这一步会生成一个叫LumaQQ的目录

3、cd LumaQQ

4、chmod +x lumaqq //设置lumaqq这个程序文件为可运行

5、此时就可以运行lumaqq了，用命令./lumaqq即可，但每次运行要输入全路径或切换到刚才生成的LumaQQ目录里

6、为了保证不设置路径就可以用，你可以在/bin目录下建立一个lumaqq的链接，用命令ln -s lumaqq /bin/ 即可，以后任何时候打开一个终端输入lumaqq就可以启动QQ聊天软件了

7、如果你要想lumaqq有个菜单项，使用菜单编辑工具，比如Alacarte Menu Editor，找到上面生成的LumaQQ目录里的lumaqq设置一个菜单项就可以了，当然你也可以直接到 /usr/share/applications目录，按照里面其它*.desktop文件的格式生成一个自己的desktop文件即可。

posted @ 2007-08-10 09:39 小小程序程序员混口饭吃 阅读(603) | 评论 (0) | 编辑 收藏
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