Node.js Web应用程序加载时空白页 [英] Blank Page on load for nodejs web app

问题描述

我没有分配任何端口. Webconfig存在但不会加载.加载空白页.该应用会在本地和其他平台上加载.

Hi I don't have any ports assigned. Webconfig is present but wont load. Loads a blank page. The app loads locally and on other platforms.

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var searchRouter = require('./routes/search');

var app = express();

//查看引擎设置
app.set('views'，path.join(__ dirname，'views')));
app.set('view engine'，'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({Extended:false}));
app.use(cookieParser());
app.use(express.static(path.join(__ dirname，'public')));

app.use('/'，indexRouter);
app.use('/search'，searchRouter);

//捕获404并转至错误处理程序
app.use(function(req，res，next){
  next(createError(404));
});

//错误处理程序
app.use(function(err，req，res，next){
  //设置本地变量，仅在开发中提供错误
  res.locals.message = err.message;
  res.locals.error = req.app.get('env')==='开发'吗? err:{};

  //呈现错误页面
  res.status(err.status || 500);
  res.render('错误');
});

module.exports =应用；

var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var searchRouter = require('./routes/search');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', indexRouter);
app.use('/search', searchRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;

推荐答案

部署与运行时问题 缩小问题范围.

Just to confirm, could you verify if you have a web.config file on the root directory of your app? You may start with this Deployment vs runtime issues to narrow down the issue.

 

启用登录IISNode.yml通过设置loggingEnabled:true和devErrorsEnabled:true来查看文件，并查看它是否提供了任何指针.

 

要进行调试，请按照以下步骤操作:

For debugging, follow these steps:

 

1. 转到您的Kudu控制台.
2. 转到您的应用程序日志文件夹(D:\ home \ LogFiles \ Application).
3. 在logging_errors.txt文件中，检查内容.

1. Go to your Kudu console.
2. Go to your application logs folder (D:\home\LogFiles\Application).
3. In the logging_errors.txt file, check for content.

 

参阅文档 如何在Azure应用服务中调试Node.js Web应用 ，以获取有关启用和调试日志的更多详细信息.

Refer the document How to debug a Node.js web app in Azure App Service for more details on enabling and debugging the logs.

 

此外，您可能希望检查一下该过程和一个样本，可以帮助您更好地了解: 在Azure中创建Node.js Web应用 .

Additionally, you may wish to check the process and a sample for better insight: Create a Node.js web app in Azure.

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