Question

据我所知，这是一个stream所以它不断地将值传输到Oracle数据库。

我想知道我是否可以执行超时功能等待大约3秒再发送一次。

var net = require('net');
var fs = require('fs');
var oracledb = require('oracledb');
var dbConfig = require('./dbconfig.js');


var client = new net.Socket();

client.connect(8080, "192.168.0.7");

console.log("Client most likely connected...");


oracledb.getConnection(
    {
      user          : dbConfig.user,
      password      : dbConfig.password,
      connectString : dbConfig.connectString
    },
    function(err, connection) {
      if (err) {
        console.error(err.message);
        return;
      }
      client.on('data', function (data) {
        var weight_data = Number(data);
        console.log('Data: ' + data);
        connection.execute("INSERT INTO UNI_SCRAP_SCALE(WEIGHT) VALUES (:weight)", [weight_data], function (err, result) {
          if (err) throw err;
          console.log("Rows inserted: " + result.rowsAffected);
          console.log('Data received from Db:\n');
          console.log(result);
          connection.commit(
            function (err) {
              console.log('Done')
            });
          });
        });
      });
    });



// client.destroy();

Answer 1

在JavaScript中有一个设置超时的函数，setTimeout（），这是一个例子：

setTimeout(function {
    // place your code here
}, 3000);   //number of millisecond before executing code

您的代码将在3秒后执行。

文档： https://www.w3schools.com/jsref/met_win_settimeout.asp

Answer 2

JavaScript的：

setTimeout(function () {
    // code you want to wait for here
}, 3000);

节点的超时功能？

2 个答案: