众所周知，使用数据库连接池可以获得许多性能优势。
It is common knowledge that you can gain a lot of performance benefits by using database connection pools.
提出一种自优化数据库连接池的设计方式。
A new design approach on database connection pool, self-optimized connection pool, is proposed in the paper.
根据规范，应用程序模块使用数据库连接池需要两个步骤。
As per the specification, two steps are needed for an application module to use a database connection pool.
会话bean非常简单并且使用数据库连接池直接访问数据库。
The session bean is very simple and accesses the database directly using a pooled database connection.
在一个生产实现中，可以使用该方法来创建数据库连接池的间隔。
In a production implementation, you would use this method to create the internals of a database connection pool.
清单4显示了在应用程序模块中查找创建的数据库连接池所需的代码。
Listing 4 shows the code in the application module needed to lookup the created database connection pool.
本例中的EJB组件使用JNDI查询来确定数据库连接池资源的位置。
The EJB component in this example USES a JNDI lookup to locate the database connection pool resource.
这是一款轻量级工具，能够集中化对数据库连接池、财务和安全性的管理。
It's a lightweight tool that centralizes management of database connection pooling, accounting, and security.
数据库连接池开始空和创建连接，随着时间的推移，根据需求。
The database connection pool starts out empty and creates connections over time according to demand.
实现数据库连接池，重用连接对象，而不是重复地打开和关闭连接。
Implement connection pools to the database and reuse connection objects, rather than repeatedly opening and closing connections.
您了解了如何使用Geronimo控制台来初始化数据库并配置数据库连接池。
You learned how the Geronimo console is used to initialize the database and configure a database connection pool.
在数据库连接上采用数据库连接池技术，以提高数据库连接的效率和性能。
Database connection pool technology was adopted to improve the efficiency and performance of database connection.
通过结合车辆定位平台的实例，设计和实现了数据库连接池，并验证了其有效性。
The design and implementation of database connection pool are done through an instance of vehicle positioning platform, which proves the efficiency of this method.
研究和实现了用数据库连接池技术来建立更有效的WEB应用程序与数据库的连接。
Study and realize to build more effectively connections between database and WEB application using the database connection pool technology.
同样地，应用程序设计也能调优性能：更少的对象创建、实时的数据库优化以及使用数据库连接池。
Similarly the application design can be tuned for performance: Fewer object creations, ongoing database refinements, and using database connection pooling.
在对数据库连接进行分析的基础上，提出了一种合理、有效的数据库连接池的设计与实现方案。
A reasonable, efficient design and realization scheme for database connection pools was presented, which is based on the analysis of database connections.
通过分析传统数据库开发模式的不足，提出数据库连接池技术，并对其基本模型和设计方案进行探讨。
By analyzing the shortage of traditional data base developing mode, it refers data base connection pool skill, and discuss its basic model and design method.
在深请求序列中(假设需要数据库连接)，数据库连接池的这些方面可能会由于允许多个线程而受到影响。
In the deep-request sequence (assuming a database connection is needed), these aspects of database connection pooling can be affected by allowing more threads.
监视诸如堆、Servlet线程和数据库连接池等顶级组件，可以了解JVM处理请求时所发生的情况。
Monitoring the top-level components, such as the heap, servlet threads, and DB connection pool, provides an insight into what is happening when a request is being processed by the JVM.
清单6中的脚本将Trade6应用程序中使用的JDBC数据源的数据库连接池限制设置为 113。
The script in Listing 6 sets the database connection pool limit to 113 for the JDBC data source used in the Trade6 application.
比如数据库连接池就是单例设计模式的一个例子：我们一般不想让应用程序具有连接池类的多个资源密集型实例。
An example use case for a singleton would be a database connection pool: you don't want your application to have multiple resource-intensive instances of a connection pool class.
数据访问效率低下已成为多层体系结构应用软件的主要性能瓶颈，而数据库连接池技术是解决这一问题的主要途径。
One major performance bottleneck of the multi-layer application software is low data access efficiency; connection pool technology is an effective way to solve this problem.
系统采用SQLSERVER数据库作为数据层的服务器，应用服务器使用数据库连接池和SQL语句来与SQLSERVER交互。
The system use SQLSERVER database as data-layer, Application server use database-connect-pool and SQL language to communicate with SQLSERVER database.
数据库连接池的工作方式与数据存储池相似，但是连接池在更低的层次(LibraryServer数据库的实际数据库连接)上透明地工作。
The database connection pool works similarly to the datastore pool, but the connection pool works transparently at the lower level of actual database connections to the Library Server database.
当数据库连接池与Derby (org.apache.derby/derby/10.1.1.0/jar)或Derbynet (org.apache.derby/derbynet/10.1.1.0/jar)驱动程序具有依赖性时就会引发此条件。
The condition is caused when a database connection pool has a dependency on the Derby (org.apache.derby/derby/10.1.1.0/jar) or Derbynet (org.apache.derby/derbynet/10.1.1.0/jar) drivers.
所有这一切都依赖于数据库服务器和管理连接池的中间件的可伸缩性。
All this depends on both the scalability of the database server and the middleware managing the connection pool.
打开和关闭连接的过程开销较大，会影响到应用程序或数据库的性能，而使用连接池就可以消除大部分这样的开销。
Opening and closing connections is an expensive process affecting application or database performance and the use of connection pooling helps eliminate most of that overhead.
每个J2C连接工厂和每个JDBC数据源本身都有连接到相应远程系统(企业信息系统或数据库)的连接池。
Each J2C connection factory and each JDBC datasource has its own pool of connections to the corresponding remote system (Enterprise Information system or database).
大多数数据库厂商也实现了自己的兼容jdbc 3.0的连接池。
Most database vendors also implement their own JDBC 3.0-compliant connection pools.
如果应用已经使用JDBC 2.0连接池启用的数据库，那么，您所要做的只是为JMS配置jndi特性，以使用那个JDBC实例。
If the application is already using a JDBC 2.0 connection pool-enabled database, then all you need to do is configure the JNDI property for the JMS to use that JDBC instance.
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