nodejs+mysql 批量更新

没办法，只能通过循环一次次更新；

var updateMysql = function(){
  data = excel[0].data;
  for(var i=1; i<data.length; i++){
    if(data[i][0]){
      _a = [];
      _a[0] = Math.round(data[i][7]);
      _a[1] = data[i][2];
      _obj.push(_a)
    }
  } 

  connection.connect();

  var modSql = 'UPDATE word SET frequency = ? WHERE id = ?';
  // var modSqlParams = [[1, 1], [2, 2]];
  _obj.forEach(function(item,index){
    //改
    connection.query(modSql,item,function (err, result) {
       if(err){
             console.log('[UPDATE ERROR] - ',err.message);
             return;
       }
    });
  })

  connection.end();
}