Connection conn = MySqlTool.getMySqlConnection();
        
        
        PreparedStatement ps = null;
        String sql = "";
        try {
            if(groupObj.getGroupAddress()!=null || groupObj.getGroupAddress().trim().length()!=0){
                
                sql = "update t_group set groupAddress = ? where groupKey = ?";
                ps = conn.prepareStatement(sql);
                ps.setString(1, groupObj.getGroupAddress());
                ps.setString(2, groupObj.getGroupKey());
                ps.executeUpdate();
            }
            
            if(groupObj.getGroupDescription()!= null || groupObj.getGroupDescription().length() != 0){
                sql = "update t_group set groupDescption = ? where groupKey = ?";
                ps = conn.prepareStatement(sql);
                ps.setString(1, groupObj.getGroupDescription());
                ps.setString(2, groupObj.getGroupKey());
                ps.executeUpdate();
            }
            
            if(groupObj.getGroupName() != null || groupObj.getGroupName().length() != 0){
                sql = "update t_group set groupName = ? where groupKey = ?";
                ps = conn.prepareStatement(sql);
                ps.setString(1, groupObj.getGroupName());
                ps.setString(2, groupObj.getGroupKey());
                ps.executeUpdate();
            }
            
            ps.close();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            
            MySqlTool.closeMySqlConnection(conn);
        }