七郎's JavaBlog

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

2.新建root.xml文档  
<!--

    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的环境变量如何设置？
A: 如果是Win95/98，在\autoexec.bat的最后面添加如下3行语句：
    set JAVA_HOME=c:\j2sdk1.4.2
    set PATH=%JAVA_HOME%\bin;%PATH%
    set CLASSPATH=.;
    看好了CLASSPATH中第一个“.”，这个代表当前目录，很多人HelloWorld没有运行起来大多是这个原因。

B. 如果是Win2000或者XP，使用鼠标右击“我的电脑”->属性->高级->环境变量
    系统变量->新建->变量名：JAVA_HOME 变量值：c:\j2sdk1.4.2
    系统变量->编辑->变量名：Path 在变量值的最前面加上：%JAVA_HOME%\bin;
    系统变量->新建->变量名：CLASSPATH 变量值：.;
    CLASSPATH前面的那个'.'和上面的意义是一样的。 

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执行批量更新
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执行批量删除
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();

今天为了从外网数据库导入到内网数据库,采用了dblink方式进行.

    创建dblink分为两个步骤:

   1.建立本地服务名

   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)
    )
  )';

曾经参考语句:

CREATE DATABASE LINK数据库链接名CONNECT TO 用户名 IDENTIFIED BY 密码 USING ‘数据库连接字符串’;

数据库连接字符串可以用NET8 EASY CONFIG或者直接修改TNSNAMES.ORA里定义.

数据库参数global_name=true时要求数据库链接名称跟远端数据库名称一样

数据库全局名称可以用以下命令查出
SELECT * FROM GLOBAL_NAME;

查询远端数据库里的表
SELECT …… FROM 表名@数据库链接名;

附带说下同义词创建:

CREATE SYNONYM同义词名FOR 表名;
CREATE SYNONYM同义词名FOR 表名@数据库链接名;

reg=/^([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\-|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/gi;
  if(form.email.value!=""){
  if(!reg.test(form.email.value))
    {
     alert("非法的电子邮件);
      form.email.focus();
      return false;
     }
    }
  reg1=/^13\d{9}$/gi;
  if(form.mobile.value!=""){
    if(!reg1.test(form.mobile.value))
   {
      alert("非法的手机号码);
      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>当然别的类型有乱码也可以加

2.清除IE缓存

3.重启TOMCAT