一个操作数据库的Java Bean,有兴趣的朋友看一下吧~~
  package dbconnect; 
 import java.sql.*;    public class sqlconnection  {      String sDbDriver = "sun.jdbc.odbc.JdbcOdbcDriver";   String sConnStr  = "jdbc:odbc:sqlconnect"; // sqlconnect 数据源名称;   private Connection conn = null;   private Statement stmt  = null;   ResultSet rs = null;      public sqlconnection()   {    try    {     Class.forName(sDbDriver);    }catch(java.lang.ClassNotFoundException e){     System.err.println("sqlconnection():" + e.getMessage());    }   }      public ResultSet executeQuery(String sql)   {    rs = null;    try    {     conn = DriverManager.getConnection(sConnStr);     stmt = conn.createStatement();     rs  = stmt.executeQuery(sql);    }catch (SQLException ex){     System.err.println("aq.executeQuery:" + ex.getMessage());    }    return rs;   }      public void executeUpdate(String sql)   {    stmt = null;    rs   = null;    try    {     conn = DriverManager.getConnection(sConnStr);     stmt = conn.createStatement();     stmt.executeQuery(sql);     stmt.close();     conn.close();    }catch (SQLException ex){     System.err.println("aq.executeQuery:" + ex.getMessage());    }   }      public void closeStmt()   {    try    {     stmt.close();    }catch (SQLException ex){     System.err.println("aq.executeQuery:" + ex.getMessage());    }   }      public void closeConn()   {    try    {     conn.close();    }catch (SQLException ex){     System.err.println("aq.executeQuery:" + ex.getMessage());    }   }  }  
 
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