Nodejs implementation download Excel file

Nodejs as a new language, the report function is not very perfect.(1). JS-XLSX: Currently Github on the most number of star processing Excel Library, support parsing a variety of format table xlsx/xlsm/xlsb/xls/csv, parsing using pure JS

Deploying PHP applications in the Kubernetes cluster

This article describes the deployment of a PHP application system in the kubernetes environment. The front-end Web uses nginx, middleware PHP to run in fastcgi way, the background database is supported by MySQL master and slave.Calls between service

CSS Selectors (1)--element Selector, class name, and ID selector

One of the main advantages of CSS is that it makes it easy to apply a set of styles to all the same types of elements. Of course it is done by selectors.Basic rule structure:syntax = selector + declaration block1. Element selector--use HTML element

Web front End "first" HTML basis one (tag)

First, the initial HTML1.web Service EssenceImport Socketsock=socket.socket (Socket.af_inet,socket. Sock_stream) Sock.bind (("127.0.0.1", 8800)) Sock.listen (5) While 1: print ("Waiting ...") conn,addr= Sock.accept ( data=conn.recv)

[Angular] Handle HTTP Errors in Angular with Httperrorresponse interface

When communicating with some backend APIs, the data travels over the network using the HTTP protocol. As such, failures may occur, is it on our own device (i.e. the browser) or on the server-side which could not be available O R Unable to process

Apache virtual directory, user authentication, port/ip/domain-based virtual host, SSL

Environment configuration:Configure DNS for Domain name resolution Install the bind package. Yum install-y bind2. Modify the bind configuration file.Vim/etc/named.confListen-on Port 53 {192.168.200.101;};allow-query

Exception handling mechanism for PHP

1. Unusual Uniqueness in PHPThe uniqueness of exceptions in PHP is that exceptions in PHP are different from those in mainstream languages C + + and Java. In Java, exceptions are the only way to report errors, not in PHP, but to treat all anomalies

On PHP exception handling

1. Unusual Uniqueness in PHPThe uniqueness of exceptions in PHP is that exceptions in PHP are different from those in mainstream languages C + + and Java. In Java, exceptions are the only way to report errors, not in PHP, but to treat all anomalies

Fine-tuning convolutional neural Networks for biomedical Image analysis:actively and Incrementally how to use as few callout data as possible to train a classifier with potential effects

AI Learning SocietyLinks: https://www.zhihu.com/question/57523080/answer/236301363Source: KnowCopyright belongs to the author. Commercial reprint please contact the author for authorization, non-commercial reprint please specify the source.Today

Configure host name-based virtual host and httpd encrypted SSL configuration and HTTPS forced jump

Configuring host-name-based virtual hosts1. Configure DNS FirstDNS InstallationYum Install bind*-yOpen firewallIptables-a input-p TCP--dport 53-j ACCEPTIptables-a input-p UDP--dport 53-j ACCEPTIptables-a input-p TCP--sport 53-j ACCEPTIptables-a

"Go" quartz.net time expression-----cron expression

Transferred from: https://www.cnblogs.com/knowledgesea/p/4705796.htmlPrefaceCron expression: is to use the simple xxoo symbol according to certain rules, you can put all kinds of time dimension expression incisively and vividly, everywhere, And then

Asp. NET specify page to PDF, JPG (plugin)

//PDF File Export PublicActionResult PDFs () {//path to the exported page (dead path) stringURL ="http://localhost:1213/"; //the path of the plugin (converted to Pdfne) stringPDF ="C:/Program

How to change the Apache port number under Linux

First, modify the listening port number in the/etc/httpd/conf/httpd.conf fileListen 80Change the 80 to the required number, such as 8000, i.e.Listen 8000Second, view the SELinux HTTP-related portsCheck if SELinux is enabled # sestatus-v |grep

In. NET, a more convenient way to manipulate configuration items

Tag: Derive this RAM Lda value problem extension method base class txtIn the application development process, we often provide some configuration items for the software to allow the software to do things according to the configuration items, such as

Enable gzip compression on IIS (HTTP compression)

I. SummaryThis article summarizes how to enable gzip compression for Web sites that are hosted by IIS, reducing the size of the Web network transfer and increasing the speed at which users display pages.Two. Preface.The knowledge points of this

Flume uses the exec source to collect each end data to summarize to another server

Reprint: http://blog.csdn.net/liuxiao723846/article/details/78133375First, the scene of a description:The Online API interface service prints logs on the local disk via log4j, installs Flume on the interface server, collects logs through the exec

"ASP. NET Core" ASP-Dependency Injection

I. What is dependency injection (denpendency injection) This is also a laoshen talk about question, in the end what is dependency injection? Why do you use it? It is particularly easy for beginners to be dizzy with the concept of control reversal

Tip: Let NetScaler CS vserver perceive lb vs's status

Let NetScaler CS vserver perceive lb vs's statusBy default CS vs does not perceive lb vs's State, and regardless of LB's state how CS vs is up. If you want CS vs to change with LB status, you need to enable the "State Update" feature. CS vs also

Basics of Django Creating dynamic Web pages

1. As our first goal, let's create a Web page to output this famous example message: Hello world. If you publish a simple Hello World Web page without a Web framework, simply type Hello world into a text file, name it a hello.html file, and upload

System V and POSIX

System V and POSIX When we conduct inter-process communication in Linux, such as semaphores, message queues, and shared memory, we will find two types: System V and POSIX. Let's briefly introduce them today. POSIX: POSIX (Portable Operating System

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