连接JDBC

在tomcat的context.xml中追加以下内容
<Resource name = "jdbc/251DCPF"
    	auth="Container"
    	type="javax.sql.DataSource"
    	driverClassName="com.mysql.jdbc.Driver"
    	url="jdbc:MySQL://10.1.128.251:3306/dcpf30"
    	username="uidcpf30"
    	password="dcpf30pwd"
    	maxActive="20"
    	maxIdle="0"
    	maxWait="30000"/>

在连接类中添加:
public static Connection getConn() throws ClassNotFoundException,
            SQLException, NamingException {
        // 实现数据连接池
        Context ctx = new InitialContext();
        DataSource ds = (DataSource) ctx.lookup(config.getDBName());
//config.getDBName()用来获得 resource中name的值
        Connection con = ds.getConnection();
        return con;
    }

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转载自570421779.iteye.com/blog/1674905