Question

我正在尝试为学校项目创建NodeJS应用程序。基本思想是NodeJS服务器，它将处理对它的请求并跟踪具有特定格式的请求（这些将来自在各个区域发布的QR码）。

我想使用OpenShift来托管应用程序，我让它构建好了，但每次我发布URL都会给我503错误，即使我使用格式正确的请求（例如：psychexpserver-psychexp） .rhcloud.com / MU-EllisLib - 蓝 - NoPhrase）。我已在本地测试了该应用，它运行正常。我已经研究了这个主题，但是我发现没有任何答案可以解决我的端口配置错误吗？我应该去另一个网址吗？

代码：

    var app = require('express')();
    var http = require('http').Server(app);
    var fs = require('fs');

    // Port which we listen to - get from OpenShift
    var serverPort = process.env.OPENSHIFT_NODEJS_PORT || 80;
    var serverIp = process.env.OPENSHIFT_NODEJS_IP || '127.0.0.1';

    app.set('port', serverPort);
    app.set('ipaddr', serverIp);

    // Data logging
    app.get('/:val', function(req, res)
                     {
                         // Grab request url
                         var data = req.url;
                         // Process and write to file
                         processData(data);
                         // Redirect to follow up form
                         res.redirect('https://docs.google.com/forms/d/11JbF4FE_Vd1Dd6PD8wMbs4Kxc15GgA3NL6vDGYEjtZY/viewform?c=0&w=1');
                     });

    function processData(data)
    {
        // Get timestamp
        var now = new Date();
        // Set time zone
        now.setHours(now.getHours() - 6);
        var timestamp = now.toUTCString();
        // Parse request
        var info = timestamp + ";_";

        // Sample communities and areas
        if(data.includes("RB"))
        {
             info += 'RB;_';
             // Sample area
             if(data.includes("North"))
                  info += 'North Coms;_';
             else if(data.includes("Main"))
                  info += 'Main Coms;_';            
             else if(data.includes("Atrium"))
                  info += 'Atrium;_';
        }
        else if(data.includes("MU"))
        {
             info += 'MU;_';
             // Sample area
             if(data.includes("Strickland"))
                  info += 'Strick;_';
             else if(data.includes("EllisLib"))
                  info += 'EllisLib;_';
             else if(data.includes("Engineering"))
                  info += 'Engineer;_';
        }
        else if(data.includes("DT"))
        {
             info += 'DT;_';
             // Sample area
             if(data.includes("North"))
                  info += 'North;_';
             else if(data.includes("West"))
                  info += 'West;_';
             else if(data.includes("East"))
                  info += 'East;_';
             else if(data.includes("South"))
                  info += 'South;_';
         }
         // Oh no, something's wrong
         else
         {
              info += 'Invalid Access;_';
         }

         // Color
         if(data.includes("Red"))
              info += 'Red;_';
         else if(data.includes("Blue"))
              info += 'Blue;_';
         else if(data.includes("Yellow"))
              info += 'Yellow;_';
         else if(data.includes("Blank"))
              info += 'Blank;_';

         // Phrase?
         if(data.includes("Phrase"))
              info += 'Phrase;';
         else if(data.includes("NoPhrase"))
              info += 'NoPhrase;';

         // Terminate line
         info += '__\t';
         // Log
         console.log('Got: ' + info);
         // Log into file
         fs.appendFileSync("data.txt", info, 'utf8');
     }

     http.listen(serverPort, serverIp, 
                   function()
                   {
                        console.log("Listening on: " + serverIp + ":" + serverPort);
                   });

谢谢！

编辑：嘿伙计们，感谢所有人的回答和建议。不幸的是，问题仍然存在（至少对我而言），并且由于时间限制，我不得不寻找不同的托管服务。我仍然会检查这个问题，看看我们是否可以解决这个问题！再次感谢！

Answer 1

您似乎正在尝试使用express和http服务器，但它有点混乱。此外，您希望String对象具有includes函数并存储您的data.txt，以便它在OpenShift Online上的git push中无法生存。我对您的server.js代码进行了一些小的修改：

使用express：

var express = require('express');
var app = express();
var fs = require('fs');

原型includes方法：

String.prototype.includes = function(substr) {
  return this.indexOf(substr) != -1;
}

收听快递：
```
app.listen(serverPort, serverIp,
```
您还希望data.txt最有可能放置OPENSHIFT_DATA_DIR，以免每次git推送都被删除，但我没有在此处做任何更改。有关详细信息，请参阅OpenShift上的persistent data storage。

所以现在我有了下面的内容，它似乎正在使用OpenShift的nodejs盒式磁带（我的意思是记录内容，重定向并将data.txt存储在~/app-root/runtime/repo/中）：

var express = require('express');
var app = express();
var fs = require('fs');

// Port which we listen to - get from OpenShift
var serverPort = process.env.OPENSHIFT_NODEJS_PORT || 80;
var serverIp = process.env.OPENSHIFT_NODEJS_IP || '127.0.0.1';

// Data logging
app.get('/:val', function(req, res)
                 {
                     // Grab request url
                     var data = req.url;
                     // Process and write to file
                     processData(data);
                     // Redirect to follow up form
                     res.redirect('http://goo.gl/forms/VGU9K99735');
                 });

function processData(data)
{
    // Get timestamp
    var now = new Date();
    // Set time zone
    now.setHours(now.getHours() - 6);
    var timestamp = now.toUTCString();
    // Parse request
    var info = timestamp + ";_";

    // seems like you want "includes" method for string objects
    String.prototype.includes = function(substr)
    {
      return this.indexOf(substr) != -1;
    }

    // Sample communities and areas
    if(data.includes("RB"))
    {
         info += 'RB;_';
         // Sample area
         if(data.includes("North"))
              info += 'North Coms;_';
         else if(data.includes("Main"))
              info += 'Main Coms;_';            
         else if(data.includes("Atrium"))
              info += 'Atrium;_';
    }
    else if(data.includes("MU"))
    {
         info += 'MU;_';
         // Sample area
         if(data.includes("Strickland"))
              info += 'Strick;_';
         else if(data.includes("EllisLib"))
              info += 'EllisLib;_';
         else if(data.includes("Engineering"))
              info += 'Engineer;_';
    }
    else if(data.includes("DT"))
    {
         info += 'DT;_';
         // Sample area
         if(data.includes("North"))
              info += 'North;_';
         else if(data.includes("West"))
              info += 'West;_';
         else if(data.includes("East"))
              info += 'East;_';
         else if(data.includes("South"))
              info += 'South;_';
     }
     // Oh no, something's wrong
     else
     {
          info += 'Invalid Access;_';
     }

     // Color
     if(data.includes("Red"))
          info += 'Red;_';
     else if(data.includes("Blue"))
          info += 'Blue;_';
     else if(data.includes("Yellow"))
          info += 'Yellow;_';
     else if(data.includes("Blank"))
          info += 'Blank;_';

     // Phrase?
     if(data.includes("Phrase"))
          info += 'Phrase;';
     else if(data.includes("NoPhrase"))
          info += 'NoPhrase;';

     // Terminate line
     info += '__\t';
     // Log
     console.log('Got: ' + info);
     // Log into file
     fs.appendFileSync("data.txt", info, 'utf8');
 }

app.listen(serverPort, serverIp, 
    function()
    {
        console.log("Listening on: " + serverIp + ":" + serverPort);
    });

//EOF

OpenShift NodeJS应用程序503错误（端口问题？）

1 个答案: