Blog系统开发 3.连接池与数据源

Blog系统开发 3.连接池与数据源

1.连接池
a.点击项目名称，右键选择New(新建)->other...


b.在categories选框里选择：Glassfish   右边File types(文件类型)选择：JDBC Connection Pool


c.JDBC Connection Pool Name(JDBC连接池名称)：输入BlogPool；连接之前创建的blogs库。


d.全部默认选项，按finish(完成),连接池算是创建完成了。


2. 数据源
按步骤1-a,1-b选择JDBC Resource

c.Gerneral Attributes(一般属性）Connection Pool选择Use Existing JDBC Connetion Pool（使用已有的连接池）
下拉单里选择刚刚创建的BlogPool，JNDI Name里填写：jdbc/Blog

Finish以后，在项目的Server Resources的sun-resources.xml文件里可以查看到连接池和数据源的信息。

 1  <? xml version="1.0" encoding="UTF-8" ?>
 2  <! DOCTYPE resources PUBLIC "-//Sun Microsystems, Inc.//DTD Application Server 9.0 Resource Definitions //EN" "http://www.sun.com/software/appserver/dtds/sun-resources_1_3.dtd" >
 3  < resources >
 4     < jdbc-resource  enabled ="true"  jndi-name ="jdbc/Blog"  object-type ="user"  pool-name ="BlogPool" >
 5       < description />
 6     </ jdbc-resource >
 7     < jdbc-connection-pool  allow-non-component-callers ="false"  associate-with-thread ="false"  connection-creation-retry-attempts ="0"  connection-creation-retry-interval-in-seconds ="10"  connection-leak-reclaim ="false"  connection-leak-timeout-in-seconds ="0"  connection-validation-method ="auto-commit"  datasource-classname ="com.mysql.jdbc.jdbc2.optional.MysqlDataSource"  fail-all-connections ="false"  idle-timeout-in-seconds ="300"  is-connection-validation-required ="false"  is-isolation-level-guaranteed ="true"  lazy-connection-association ="false"  lazy-connection-enlistment ="false"  match-connections ="false"  max-connection-usage-count ="0"  max-pool-size ="32"  max-wait-time-in-millis ="60000"  name ="BlogPool"  non-transactional-connections ="false"  pool-resize-quantity ="2"  res-type ="javax.sql.DataSource"  statement-timeout-in-seconds ="-1"  steady-pool-size ="8"  validate-atmost-once-period-in-seconds ="0"  wrap-jdbc-objects ="false" >
 8       < property  name ="URL"  value ="jdbc:mysql://localhost:3306/blogs" />
 9       < property  name ="User"  value ="root" />
10       < property  name ="Password"  value ="()" />
11     </ jdbc-connection-pool >
12  </ resources >
13