connectionfactory.java

来自「监控整个SP系统的SMS信息通道的发送情况并且生成日志。 支持权限判断。」· Java 代码 · 共 59 行

package com.infobank.monitoringSystem.util;

import java.sql.SQLException;
import java.sql.Connection;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;


public class ConnectionFactory {

	/**
	 * Data Source Name 
	 */
	private String dsName;
	
	/**
	 * Context Attribute 
	 */
	private Context ctx = null;

	public ConnectionFactory() {
	}
	
	/**
	 * Connection Pool
	 * @param envName
	 * @param dsName
	 */
	public ConnectionFactory( String dsName) {
		this.dsName = dsName;
		ctx = this.getInitialContext();
	}
	public Context getInitialContext() {
		Context envCtx = null;
		try {
			 envCtx = new InitialContext();
			//envCtx = (Context) initCtx.lookup(envName);
		} catch (NamingException ne) {
			ne.printStackTrace();
		}
		return envCtx;
	}
	/**
	 * 从JNDI取得onnection 
	 * @return
	 * @throws SQLException
	 */
	public Connection getConnection() throws SQLException {
		try {
			javax.sql.DataSource ds = (javax.sql.DataSource) ctx.lookup(dsName);
			Connection con = ds.getConnection();
			return con;
		} catch (javax.naming.NamingException ne) {
			throw new SQLException(ne.getMessage());
		}
	}
}