package com.hygj.sunqi.j2ee.util;import org.apache.log4j.Logger;import java.sql.*;public class DBConn {  private static String classForName = "";  private static String url = "";  private static String dbUser = "";  private static String dbpwd = "";  private static Connection conn = null;  private static Logger log = null;  private static DBInfo dbInfo = new DBInfo("sqlInfo");  public DBConn() {  }  public static Connection getConn(){    try{      classForName = dbInfo.getClassForName();      url = dbInfo.getUrl();      dbUser = dbInfo.getDbUser();      dbpwd = dbInfo.getDbpwd();      Class.forName(classForName);      conn = DriverManager.getConnection(url,dbUser,dbpwd);    }catch(Exception e){      log = Logger.getLogger(DBConn.class);      log.error(e);    }    return conn;  }}