hibernate + proxool整合與分開使用

hibernate+proxool整合與分別使用

讓hibernate調用proxool的連接池，同時讓proxool的連接池也可以在程序中直接調用，的方法

1.proxool配置，正常，如

<?xml version="1.0" encoding="utf-8"?>   
<something-else-entirely>   
    <proxool>   
        <alias>dbpool</alias>   
        <!--proxool只能管理由自己產生的連接-->   
        <driver-url>   
            jdbc:microsoft:sqlserver://xxxxxxxx;DatabaseName=xxxxxxxxx   
        </driver-url>   
        <driver-class>   
            com.microsoft.jdbc.sqlserver.SQLServerDriver    
        </driver-class>   
        <driver-properties>   
            <property name="user" value="xxxx" />   
            <property name="password" value="xxxxxxxx" />   
        </driver-properties>   
        <!-- proxool自動偵察各個連接狀態的時間間隔(毫秒),偵察到空閒的連接就馬上回收,超時的銷燬-->   
        <house-keeping-sleep-time>90000</house-keeping-sleep-time>   
        <!-- 指因未有空閒連接可以分配而在隊列中等候的最大請求數,超過這個請求數的用戶連接就不會被接受-->   
        <maximum-new-connections>20</maximum-new-connections>   
        <!-- 最少保持的空閒連接數-->   
        <prototype-count>5</prototype-count>   
        <!-- 允許最大連接數,超過了這個連接，再有請求時，就排在隊列中等候，最大的等待請求數由maximum-new-connections決定-->   
        <maximum-connection-count>100</maximum-connection-count>   
        <!-- 最小連接數-->   
        <minimum-connection-count>10</minimum-connection-count>   
    </proxool>   
</something-else-entirely>

2.要讓自己程序直接使用proxool連接池，要在web.xml中配置啓動

<servlet>   
  <servlet-name>ServletConfigurator</servlet-name>   
  <servlet-class>org.logicalcobwebs.proxool.configuration.ServletConfigurator</servlet-class>   
  <init-param>   
    <param-name>xmlFile</param-name>   
    <param-value>WEB-INF/classes/conf/Proxool.cnf.xml</param-value>   
  </init-param>   
  <load-on-startup>1</load-on-startup>   
</servlet>   
-- 下面是配置連接池的管理servlet，正式部署時候，最好去掉-->   
<servlet>   
  <servlet-name>Admin</servlet-name>   
  <servlet-class>org.logicalcobwebs.proxool.admin.servlet.AdminServlet</servlet-class>   
</servlet>   
<servlet-mapping>   
  <servlet-name>Admin</servlet-name>   
  <url-pattern>/Admin</url-pattern>   
</servlet-mapping>   

 3.hibernate的配置，如果還是正常配置

<?xml version='1.0' encoding='UTF-8'?>   
<!DOCTYPE hibernate-configuration PUBLIC    
 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"    
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">   
   
<hibernate-configuration>   
    <session-factory>   
        <property name="proxool.pool_alias">dbpool</property>   
        <property name="proxool.xml">conf/Proxool.cnf.xml</property>   
        <property name="connection.provider_class">   
            org.hibernate.connection.ProxoolConnectionProvider    
        </property>   
        <property name="connection.driver_class">   
            com.microsoft.jdbc.sqlserver.SQLServerDriver    
        </property>   
        <property name="show_sql">true</property>   
   
        <mapping resource="com/.................m.xml" />   
        <mapping resource="com/..................xml" />   
    </session-factory>   
</hibernate-configuration>   

 就會報 org.logicalcobwebs.proxool.ProxoolException:   Parsing   failed.錯誤

因爲同名的proxool連接池已經啓動，而hibernate開始運行時會自己啓動關聯的proxool連接池，

這時需加上

<property name="dialect">org.hibernate.dialect.SQLServerDialect</property>   
<property name="hibernate.proxool.existing_pool">true</property>

完整的如下

<?xml version='1.0' encoding='UTF-8'?>   
<!DOCTYPE hibernate-configuration PUBLIC    
 "-//Hibernate/Hibernate Configuration DTD 3.0//EN"    
 "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">   
   
<hibernate-configuration>   
    <session-factory>   
        <property name="proxool.pool_alias">cgzhpt_gy</property>   
        <property name="proxool.xml">conf/Proxool.cnf.xml</property>   
            
        <property name="dialect">org.hibernate.dialect.SQLServerDialect</property>   
        <property name="hibernate.proxool.existing_pool">true</property>   
             
        <property name="connection.provider_class">   
            org.hibernate.connection.ProxoolConnectionProvider    
        </property>   
        <property name="connection.driver_class">   
            com.microsoft.jdbc.sqlserver.SQLServerDriver    
        </property>   
        <property name="show_sql">true</property>   
   
        <mapping resource="com/jsinfo/friendlink/link.hbm.xml" />   
        <mapping resource="com/jsinfo/flashfloat/flashfloat.hbm.xml" />   
    </session-factory>   
</hibernate-configuration>