Java连接MySql数据库,并且实现插入、删除、更新、(8)

Java连接MySql数据库,并且实现插入、删除、更新、选择操作Java连接MySql数据库,并且实现插入、删除、更新、选择操作Java连接MySql数据库,并且实现插入、删除、更新、选择操作

boolean del = dc.dbDelete(tableName, condition);//—>>>删除数据 if ( del) dc.print("delete ok"); else dc.print("delete error!"); HashMap m = new HashMap(); m.put("message_content", "ookkk"); m.put("message_number", "9"); String upCondition = "where message_type = 4"; boolean ur = dc.dbUpdate("feast", m, upCondition); //—>>>更新数据 if ( ur) dc.print("update OK"); else dc.print("update error!"); HashMap mm = new HashMap(); mm.put("message_number", "6"); mm.put("message_content", "insertefasdfas"); mm.put("message_type", "4"); boolean in = dc.dbInsert("feast", mm); //—>>>插入 if (in) dc.print("insert OK"); else dc.print("insert error!"); boolean close = dc.dbClose();//—–>断开数据库 if (close) dc.print("close OK"); else dc.print("close fail"); }//end main() }//end class DbConnect 归类于： Java — Qutr @ 11:08 am 评论(4) 4条评论