String DRIVER = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
// 服务器
String URL = "jdbc:sqlserver://localhost:1433;DatabaseName=数据库";
// 用户名
String USERNAME = "sa"; 帐号
// 密码
String PASSWORD = "sa"; 密码
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// 连接驱动 mysql
String url = "jdbc:mysql://localhost/数据库?useUnicode=true&characterEncoding=utf-8";
String name = "com.mysql.jdbc.Driver";
String user = "root";
String password = "root";
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String sql="";//sql语句
try{
ps = baseDao.loadConnection(name,url,user,password,sql);//连接数据库的对应参数
rs = ps.executeQuery();//执行语句，得到结果集
while (rs.next()) { //赋值
// ChargeFeeItem chargeFeeItem=new ChargeFeeItem();
// chargeFeeItem.setActualAmount(rs.getString(1));
// chargeFeeItem.setFeeItemOfSecID(rs.getString(2));
// chargeFeeItems.add(chargeFeeItem);
}
baseDao.close();//关闭
} catch (Exception e) {
}
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public class BaseDao {
public PreparedStatement pst = null;
static Connection conn = null;
static ResultSet rs = null;
public PreparedStatement loadConnection(String DRIVER,String URL,String USERNAME,String PASSWORD,String sql){
try {
// 加载驱动
Class.forName(DRIVER);
try {
conn = DriverManager.getConnection(URL, USERNAME, PASSWORD);
pst = conn.prepareStatement(sql);//准备执行语句
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}//获取连接
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
return pst;
}
/*
* 关闭数据库连接，注意关闭的顺序
*/
public void close() throws SQLException {
try {
if(rs != null) rs.close();
if(pst != null) pst.close();
if(conn != null) conn.close();
} catch (Exception e2) {
e2.printStackTrace();
}
}
}