How should the SPA application coordinate the activity page?

for spa applications, the function of the main architecture is clear, but I still don"t understand how to coordinate some pages when doing activities.
for example,
I have a mall wapapp. On National Day and Spring Festival, there are some second kill and lottery pages. Strictly speaking, these pages do not belong to the main structure of the project, but only meet the needs within a certain period of time, but also need to share some user information, such as userid and so on. How should this kind of page be designed? Is it also updated every time you write a new route and do it for an activity, and delete it after the event ends?

Spa

May.14,2022

We here user management (login, registration) is an independent project, other including shopping malls, activities, and so on are separate projects, sharing a set of user management logic, all these projects are sub-projects under a large project (mobile project), you can reuse some service,components, and so on.

can be made into multiple entries, one entry is the main function of the project, and one entry is the active page. Shared information can be placed on localStorage.

Previous: On the problem of using typescript to refer to public js in vue-cli projects

Next: Git push fatal: refusing to merge unrelated histories

Why is it necessary to start start-all on master when starting a spark cluster, and startup failure occurs when starting start-all on slave?
what is the process of running start-all to start a spark cluster? ...

Spark

Feb.28,2021
Why can't you access the properties of an object in the method of spark: scala?
how to understand the content of the green part? Why does it feel so awkward? the feeling in the book is also very vague. ...

Spark scala

Feb.28,2021
After switching the page, the ajax response of the previous page returned, but the error report of the page element could not be found. How to solve this problem?
for a single-page application, the current page issues an ajax request. Before the response is returned, the main page on the right side is switched when the menu is switched, and the ajax response of the previous page is returned. There are too many sce...

Ajax spa

Feb.28,2021
How does the new Image () object (src= "* .png") make the white space of the png image transparent?
now you need to pass a image object to the drawImage (img,dx,dy) method of canvas for drawing. but the picture it draws by default has a transparent area around it and is filled with white by default. is the image source as follows: : in t...

Transparent javascript html picture canvas

Mar.02,2021
On the understanding of scala Grammar in Spark
val lines: Dataset[String] = session.read.textFile("") val words: Dataset[String] = lines.flatMap(_.split(" ")) linesdataSetflatMapdataSetIDEAflatMap: def flatMap[U : Encoder](func: T => Traversabl...

Java scala spark

Mar.03,2021
How to find the source of the problem of cannot redefine $router
the project is built by vue-cli. SAP, runs without error with npm run dev. After using npm run build, the generated js is put into erb and reported to cannot redefine $router,. Some answers say that vue router is defined twice, or vue is packaged twice,...

Vue.js vue-router vuex spa webpack

Mar.04,2021
Call Spark mllib linear regression to print weights and other coefficients are all NaN
use spark mllib linear regression to do traffic forecast printing training, weight and other coefficients are all NaN data format: 520221 | 0009 | 0009 | 292 | 000541875150 | 2018 | 04 | 18 | 11 | 3 | 137 520626 | 0038 | 0038 | 520626 | 2030300010...

Linear-regression spark machine-learning

Mar.06,2021
How does classpath represent the root directory in this way of use in spring
1. Problem description the project is built using maven, and the configuration files are placed under src main resources. because there are frequent changes to the web.xml configuration during project development, the project manager uses variables (s...

Spring java-web root-directory classpath configuration

Mar.07,2021
A single-page application developed by vue (implementing sub-routing to open new tags in development). After publishing to nginx, sub-routes are opened in the new tags, showing 404.
A single-page application developed by vue (which enables opening sub-routes to be displayed on a new tag) is published and placed in nginx, and sub-routes are opened on the new tag, showing 404 . nginx.conf http { include mime.types; ...

Vue.js spa router nginx

Mar.10,2021
The worker in the spark cluster is always unable to connect to the master, zookeeper cluster to achieve master high availability?
1Query spark0-2 the three hosts are zookeeper clusters 2 spark0-4 five hosts are spark clusters 3 spark0-1 two hosts achieve master high availability. run start-all.sh on spark0 to start the spark cluster. At this point, spark will be launched nat...

Spark

Mar.10,2021
Is the data of the same field after spark groupby in the same partition?
suppose there are ten partitions in a RDD. When you groupby this RDD, you get a new RDD,. Is the data of the same field in the same partition? my test results show that data from the same grouping field is divided into the same partition, and data fro...

Spark

Mar.11,2021
I would like to ask Spark'DataFrame to edit only one column (intercept a paragraph) and return the new DataFrame.
ask Spark DataFrame to edit only one column (intercept a paragraph) and return a new DataFrame ...

Spark

Mar.11,2021
Start-all mode to start the spark cluster, there is no Master process?
started spark,hdfs,yarn successfully at first, but after a long time, it was found that the spark task could not be submitted normally, and there was always an error similar to the following. "INFO Client: Retrying connect to server: 0.0.0.0 Already tr...

Spark

Mar.11,2021
The Zeppelin tutorial code runs with an error.
refer to the link description to run the tutorial code in the web notebook provided by the zeppelin container. Import local file: val bankText = sc.textFile("D: Projects Zeppelin bank bank-full.csv") case class Bank(age:Integer, job:Stri...

Spark zeppelin

Mar.11,2021
PHP two classes use the same namespace and cannot call each other
created two classes, C and D, both of which belong to the same namespace:func,. Instantiate C in the constructor of D and call the cc method in C, and class C under func cannot be found. ClivedeMBP:Workspace clive$ php D.php PHP Fatal error: Uncaught...

Namespace php

Mar.11,2021
Are there any open source middleware or components for traffic distribution?
are there any open source middleware products that provide traffic marking and traffic distribution? that is, when a http request comes, you can route the request to the specified machine or environment according to the information of various dimension...

Springboot spark springcloud spring java

Mar.12,2021
How to sort the Int type instead of the String type when sparksql operates the csv sort
Dataset<Row> df = spark.read().format("csv").load("C: develop intellij-workspace SparkSqlDemos resources down.csv"); df.createOrReplaceTempView("down"); Dataset<Row> dfSQL = spark.sql("SELECT ...

Spark

Mar.12,2021
Spark Job submission error: Initial job has not accepted any resources;.
I use IntelliJ IDEA locally for spark development and report an error when submitting it to the cluster to run. After searching, all the answers point to insufficient CPU memory resources, but I have set up enough CPU memory resources, and the state o...

Spark

Mar.13,2021
CreateDirectStream.foreachRDD error calling external object
the figure is as follows: def update_model(rdd),mixture_model: it s OK to declare mixture_model directly in update_model, but every time you foreachRDD, you need to re-declare MingleModel. Makes it impossible to update the model in real time ...

Python spark-streaming spark spark-submit

Mar.16,2021
Error NativeCodeLoader:62 after installing pyspark in win10
configure spark s environment according to this link https: blog.csdn.net w417950., but will report an error when starting: I searched for it and didn t find a way to solve my problem. Beginners on the road, please forgive me ...

Spark python

Mar.16,2021

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e960ae-4737d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e960ae-4737d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?