问题描述：

　　下面是有关连接SqlServer2008R2和MySql数据库的封装类

1 package com.test; 2  3 import java.sql.Connection; 4 import java.sql.DriverManager; 5  6 public class DataBaseConn { 7      8     private String databaseName = "";//数据名称 9     private String useName = "";//用户登入名10     private String password ="";//登入密码11     12     public DataBaseConn(){13         this.databaseName = "INTRUST";14         this.useName = "sa";15         this.password = "000000";16     }17     18     public DataBaseConn(String databaseName, String useName, String password){19         this.databaseName = databaseName;20         this.useName = useName;21         this.password = password;22     }23     24     public Connection con = null;25     26     private String MYSQLDRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver";27     private String MYSQLURL = "jdbc:mysql://localhost:3306/" + databaseName + "?use" + useName + "&password" + password + "&useUnicode=true&characterEncoding=gb2312";28     //SQLsServer驱动29     private String MSSQLDRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver";30     private String MSSQLURL = "jdbc:sqlserver://localhost:1433;DatabaseName=INTRUST";31     32     public void createMysqlConn(){33         con = null;34         try{35             Class.forName(MYSQLDRIVER).newInstance();36             con = DriverManager.getConnection(MYSQLURL);37         }catch(Exception e){38             e.printStackTrace();39         }40     }41     //SQLsServer驱动42     public void createMssqlConn(){43         con = null;44         try{45             Class.forName(MSSQLDRIVER).newInstance();46             con = DriverManager.getConnection(MSSQLURL, "sa", "000000");47         }catch(Exception e){48             e.printStackTrace();49         }50     }51     52     public Connection getMysqlConn(){53         createMysqlConn();54         return con;55     }56     57     public Connection getMssqlConn(){58         createMssqlConn();59         return con;60     }61     62     public void closeCon(){63         if(con != null){64             try {65                 con.close();66                 con = null;67             } catch (Exception e) {68                 // TODO Auto-generated catch block69                 e.printStackTrace();70             }71         }72     }73 74 }