package orz.treeSquirrels.dao;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;
/**
*
*
* 项目名称:test_uploadFile
* 类名称:BaseDao
* 类描述: 数据库公用类
* 创建人:Mu Xiongxiong
* 创建时间:2017-10-11 下午7:05:17
* 修改人:Mu Xiongxiong
* 修改时间:2017-10-11 下午7:05:17
* 修改备注:
* @version
*
*/
public class BaseDao {
Connection conn=null;
PreparedStatement ps=null;
ResultSet rs=null;
/**
*
* @Title: getConnection
* @Description: 创建连接
* @param @return
* @param @throws ClassNotFoundException
* @param @throws SQLException 设定文件
* @return Connection 返回类型
* @throws
*/
public Connection getConnection() throws ClassNotFoundException, SQLException{
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
if(conn==null){
conn=DriverManager.getConnection("jdbc:sqlserver://127.0.0.1:1433;databasename=uoloadFileDB;User=sa;Password=171268");
}
return conn;
}
/**
*
* @Title: executeUpdate
* @Description:增删改通用方法
* @param @param sql
* @param @param prams
* @param @return
* @param @throws ClassNotFoundException
* @param @throws SQLException 设定文件
* @return int 返回类型
* @throws
*/
public int executeUpdate(String sql, List<Object> prams)
throws ClassNotFoundException, SQLException {
int rel = -1;
conn = getConnection();
/*if(conn.isClosed())
{
conn=null;
conn = getConnection();
}*/
ps = conn.prepareStatement(sql);
if (prams != null) {
for (int i = 0; i < prams.size(); i++) {
ps.setObject(i + 1, prams.get(i));
}
}
rel = ps.executeUpdate();
return rel;
}
/**
*
* @Title: executeQurey
* @Description: 查询的操作
* @param @param sql
* @param @param prams
* @param @return
* @param @throws ClassNotFoundException
* @param @throws SQLException 设定文件
* @return ResultSet 返回类型
* @throws
*/
public ResultSet executeQurey(String sql,List<Object> prams) throws ClassNotFoundException, SQLException{
conn=getConnection();
ps=conn.prepareStatement(sql);
if(prams!=null){
for (int i = 0; i < prams.size(); i++) {
ps.setObject(i+1, prams.get(i));
}
}
rs=ps.executeQuery();
return rs;
}
/**
*
* @Title: closeAll
* @Description: 关闭资源
* @param 设定文件
* @return void 返回类型
* @throws
*/
public void closeAll(){
if(rs!=null){
try {
rs.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(ps!=null){
try {
ps.close();
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
if(conn!=null){
try {
conn.close();
conn=null;
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}