import java.io.*;
import java.sql.*;
public class DBConn {
private String ADDRESS ;
private int PORT ;
private String DBNAME ;
private String USERNAME ;
private String PASSWORD ;
private Connection conn ;
private PreparedStatement pstmt ;
private Statement stmt ;
private ResultSet rs ;
/***
* 连接MYSQL数据库
* @return
*/
public Connection getMySqlConn(){
try{
ADDRESS = "127.0.0.1";
PORT = 3306;
DBNAME = "test";
USERNAME = "root";
PASSWORD = "123456";
if(conn==null){
Class.forName("com.mysql.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:mysql://"+ADDRESS+":"+PORT+"?user="+USERNAME+"&password="+PASSWORD+"&useUnicode=true&characterEncoding=utf8");
}
}catch(Exception e){
e.printStackTrace();
}
return conn;
}
/***
* 连接MSSQL数据库
* @return
*/
public Connection getMSSqlConn(){
try{
ADDRESS = "127.0.0.1";
PORT = 1433;
DBNAME = "mytest";
USERNAME = "sa";
PASSWORD = "";
if(conn==null){
Class.forName("net.sourceforge.jtds.jdbc.Driver");
conn = DriverManager.getConnection("jdbc:jtds:sqlserver://"+ADDRESS+":"+PORT,USERNAME,PASSWORD);
}
}catch(Exception e){
e.printStackTrace();
}
return conn;
}
/**
* 关闭数据库连接
* @return
*/
public void closeConn(){
try{
使用HIBERNATE的SQL查询并将结果集自动转换成POJO
文章分类:Java编程
在某些场合下，我们可能想使用HIBERNATE的框架提供的SQL查询接口，这时，由于表和实体都可能没有做映射，HIBERNATE不能把结果集转换
成你想要的List<POJO>，本文讨论如何在这种情况下让HIBERNATE直接返回你想的� ......
1.按姓氏笔画排序: Select * from TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as
2.数据库加密: select encrypt('原始密码') select pwdencrypt('原始密码') select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同
3.取回表中字段: declare @list varchar(1000),@sql nvarchar(1000)&n ......
