七郎's JavaBlog

1.將$\jakarta-tomcat-5.0.28\conf\Catalina\localhost里的.xml刪除或挪走

2.新建root.xml文檔  
<!--

    Context configuration file for the Tomcat Administration Web App

    $Id: admin.xml,v 1.3 2004/02/20 17:09:19 remm Exp $

-->

<Context path="/gdcrm" docBase="E:/gdcrm/WebRoot"
        debug="0" privileged="true">

</Context> 

JAVA的環境變量如何設置？
A: 如果是Win95/98，在\autoexec.bat的最后面添加如下3行語句：
    set JAVA_HOME=c:\j2sdk1.4.2
    set PATH=%JAVA_HOME%\bin;%PATH%
    set CLASSPATH=.;
    看好了CLASSPATH中第一個“.”，這個代表當前目錄，很多人HelloWorld沒有運行起來大多是這個原因。

B. 如果是Win2000或者XP，使用鼠標右擊“我的電腦”->屬性->高級->環境變量
    系統變量->新建->變量名：JAVA_HOME 變量值：c:\j2sdk1.4.2
    系統變量->編輯->變量名：Path 在變量值的最前面加上：%JAVA_HOME%\bin;
    系統變量->新建->變量名：CLASSPATH 變量值：.;
    CLASSPATH前面的那個'.'和上面的意義是一樣的。 

D:\orant\NET80\ADMIN

 

 

# TNSNAMES.ORA Network Configuration File: d:\oracle\ora92\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.

ORA9.ITB.WEB =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.194.129.224)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = ora9)
    )
  )

GDCRM160.ITB.WEB =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.194.0.160)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = ORCL)
    )
  )
 
GDCRM52.ITB.WEB =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 10.194.132.52)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SID = GDCRM)
    )
  )

 

Hibernate3.0執行批量更新
Session session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();
String hqlUpdate = "update Customer set name = :newName where name = :oldName";
int updatedEntities = s.createQuery( hqlUpdate )
.setString( "newName", newName )
.setString( "oldName", oldName )
.executeUpdate();
tx.commit();
session.close();

Hibernate3.0執行批量刪除
Session session = sessionFactory.openSession();
Transaction tx = session.beginTransaction();
String hqlDelete = "delete Customer where name = :oldName";
int deletedEntities = s.createQuery( hqlDelete )
.setString( "oldName", oldName )
.executeUpdate();
tx.commit();
session.close();

今天為了從外網數據庫導入到內網數據庫,采用了dblink方式進行.

    創建dblink分為兩個步驟:

   1.建立本地服務名

   2.-- Create database link
create database link TEST.US.ORACLE.COM
  connect to user identified by pwd
  using '(DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = orcl)
    )
  )';

曾經參考語句:

CREATE DATABASE LINK數據庫鏈接名CONNECT TO 用戶名 IDENTIFIED BY 密碼 USING ‘數據庫連接字符串’;

數據庫連接字符串可以用NET8 EASY CONFIG或者直接修改TNSNAMES.ORA里定義.

數據庫參數global_name=true時要求數據庫鏈接名稱跟遠端數據庫名稱一樣

數據庫全局名稱可以用以下命令查出
SELECT * FROM GLOBAL_NAME;

查詢遠端數據庫里的表
SELECT …… FROM 表名@數據庫鏈接名;

附帶說下同義詞創建:

CREATE SYNONYM同義詞名FOR 表名;
CREATE SYNONYM同義詞名FOR 表名@數據庫鏈接名;

reg=/^([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/gi;
  if(form.email.value!=""){
  if(!reg.test(form.email.value))
    {
     alert("非法的電子郵件);
      form.email.focus();
      return false;
     }
    }
  reg1=/^13\d{9}$/gi;
  if(form.mobile.value!=""){
    if(!reg1.test(form.mobile.value))
   {
      alert("非法的手機號碼);
      form.mobile.focus();
      return false;
     }
  } 

1.在web.xml最后加入 

<mime-mapping>
<extension>rar</extension>
<mime-type>application/rar</mime-type>
</mime-mapping>當然別的類型有亂碼也可以加

2.清除IE緩存

3.重啟TOMCAT