关于删除的方法！

晓江小子 — Wed, 04 Mar 2009 09:57:00 GMT

    String[] sid = request.getParameterValues("selectFlag");
        UserManager.getInstance().deleteUser(sid);
        //for(int i=0; i         //    UserManager.getInstance().deleteUser(sid[i]);
        //}
    }

    /**
     * 用数组实现删除 sql = select from t_user where user_id in ('b001', 'b002', )
     * @param userIds
     */
    public void deleteUser(String[] userIds) {
        StringBuffer sbStr = new StringBuffer();
        for(int i=0; i<userIds.length; i++) {
            sbStr.append("'")
                 .append(userIds[i])
                 .append("',");
        }
        String sql = "delete from t_user where user_id in (" + sbStr.substring(0, sbStr.length()-1) + ")";
System.out.println("sql= " + sql);
        Connection conn = null;
        Statement stmt = null;
        try {
            conn = DB.getConn();
            stmt = conn.createStatement();
            stmt.executeUpdate(sql);
        } catch(SQLException e) {
            e.printStackTrace();
        } finally {
            DB.close(stmt);
            DB.close(conn);
        }
    }

晓江小子 2009-03-04 17:57 发表评论

BlogJava-我想回家-随笔分类-Jdbc

关于删除的方法！