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Mysql Jdbc数据库连接池配置_MySQL

WBOY
WBOYOriginal
2016-06-01 13:51:351219browse

Reference:《【问题】数据库连接池》

网上好多配置方法,我只记录一下自己配置成功的

1.在自己的WEB应用的META-INF文件夹下新建context.xml 内容如下

<pre style="font-size: 12px; margin: 0em; width: 100%; font-family: consolas,'Courier New',courier,monospace; background-color: #fbfbfb"><?xml version="1.0" encoding="UTF-8"?>
<context path="/appName" docbase="appName"><pre style="font-size: 12px; margin: 0em; width: 100%; font-family: consolas,'Courier New',courier,monospace; background-color: #fbfbfb">  debug="5" crossContext="true" reloadable="false"  
  cachingAllowed="true" cacheMaxSize="20480"  
  cacheTTL="10000">  
  <resource name="jdbc/mysql" auth="Container" removeabandoned="true"><pre style="font-size: 12px; margin: 0em; width: 100%; font-family: consolas,'Courier New',courier,monospace; background-color: #fbfbfb">  removeAbandonedTimeout="60" logAbandoned="true"  
  type="javax.sql.DataSource" maxActive="50" maxIdle="10"  
  maxWait="10000" username="root" password="root"  
  driverClassName="com.mysql.jdbc.Driver"  
  url="jdbc:mysql://localhost:3306/dbname?autoReconnect=true" />  
  

注意下改参数名字

2.在web.xml中加入如下代码,声明使用外部资源(resource-ref的位置应该蛮靠后的,我是扔在最后面了)

<pre style="font-size: 12px; margin: 0em; width: 100%; font-family: consolas,'Courier New',courier,monospace; background-color: #fbfbfb"><resource-ref></resource-ref>
	<description>DB Connection </description>
	<res-ref-name>jdbc/mysql</res-ref-name>
	<res-type>javax.sql.DataSource</res-type>
	<res-auth>Container</res-auth>

 

3.把JDBC驱动包甩到WEB的lib下面(我的是mysql-connector-java-5.1.15-bin.jar)

 

重启Server就OK 了,使用的时候这样获取Connection

<pre style="font-size: 12px; margin: 0em; width: 100%; font-family: consolas,'Courier New',courier,monospace; background-color: #fbfbfb">Context context = new InitialContext();
DataSource ds = (DataSource) context.lookup("java:comp/env/jdbc/mysql");
conn = ds.getConnection();

    
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