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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