主题：TOMCAT配置JNDI数据源(MySql)
1. tomcat中添加jndi数据源，修改server.xml文件中<Context>标签的内容，如下所示<Context docBase="TestDevon" path="/TestDevon" reloadable="true" source="org.eclipse.jst.j2ee.server:TestDevon"> <Resource auth="Container" name="jdbc/mysql" type="javax.sql.DataSource" /> <ResourceParams name="jdbc/mysql"> <parameter> <name>maxWait</name> <value>5000</value> </parameter> <parameter> <name>maxActive</name> <value>20</value> </parameter> <parameter> <name>factory</name> <value> org.apache.commons.dbcp.BasicDataSourceFactory </value> </parameter> <parameter> <name>url</name> <!-- value>jdbc:derby://localhost:1527/devonoffice?characterEncoding=euckr</value--> <value> jdbc:mysql://localhost:3306/testdevon?autoReconnect=true </value> </parameter> <parameter> <name>driverClassName</name> <value> com.mysql.jdbc.Driver </value> </parameter> <parameter> <name>maxIdle</name> <value>10</value> </parameter> <parameter> <name>username</name> <value>root</value> </parameter> <parameter> <name>password</name> <value>lgcnschina</value> </parameter> </ResourceParams> </Context>
2. 确认MySql驱动是否存放在tomcat下的common\lib文件夹中
3. 测试数据源的配置是否成功
(1) 在web.xml中添加如下代码
<resource-ref> <description>DataSource</description> <res-ref-name>jdbc/mysql</res-ref-name> <res-type>javax.sql.DataSource</res-type> <res-auth>Container</res-auth></resource-ref>
(2) 测试数据源
<html> <head> <title>test jndi</title> </head> <body> <% Context initCtx = new InitialContext(); Context ctx = (Context) initCtx.lookup("java:comp/env"); DataSource ds = (DataSource) ctx.lookup("jdbc/mysql"); Connection conn = ds.getConnection(); Statement stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery("select * from user_info"); while (rs.next()) { %> <%=rs.getInt(1)%> <% } rs.close(); stmt.close(); conn.close(); %> </body> </html>
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