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package shujuku; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class basedao { Connection conn=null; PreparedStatement ps; ResultSet rs=null; int rs1; public void getConnection() { try{ //class.name 加载驱动 Class.forName("oracle.jdbc.driver.OracleDriver"); //获取数据库链接 conn=DriverManager.getConnection("jdbc:oracle:thin:@20.12.2.50:1521:ora11g","lzt02","1"); }catch(ClassNotFoundException e){e.printStackTrace();} catch(Exception e){e.printStackTrace(); } //if(conn!=null){System.out.println("数据库链接成功");} } //关闭链接 public void closeall() { try{ if(rs!=null) { rs.close(); } if(ps!=null) { ps.close(); } if(conn!=null) { conn.close(); } }catch(Exception e ){} } //执行操作 public ResultSet execute(String sql,Object[] params,int flag) { getConnection(); try{ ps=conn.prepareStatement(sql); if(params !=null) { for(int i=0;i<params.length;i++) { ps.setObject(i+1, params[i]); } } if(flag==0){ rs=ps.executeQuery(); return rs;} else if(flag==1){ rs1=ps.executeUpdate(sql); if(rs1==1){System.out.println("插入成功");} } }catch(SQLException e){e.printStackTrace();} return null; } // public static void main(String[] args) { // // TODO Auto-generated method stub // basedao bd=new basedao(); // bd.getConnection(); // } }
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原文地址:http://www.cnblogs.com/luo-mao/p/5980421.html