Web Develop

Today's project requirements export Excel. I exported it with the simplest header, but the demand department returned, saying that it didn't meet their needs and that I needed to follow their template to export.Then think of Phpexcel, no use, go a

Recently in the toss Kylin, here to record the complete installation process Environment preparation CDH5.7.0kylin-cdh5.7.02. Installation process(1) The relevant key to prepare the cdh5.7.0, the main need hdfs,hive,hbase, ensure yarn

failure : Loading fastcgi module under apache2.4 Web server, always unable to loadanalysis : 1, find the document process found, Apache also has another function similar module, mod_fcgid, many people say, Fcgid is better than fastcgi compatibility,

Error message:HTTP Status 500-the Absolute uri:http://java.sun.com/jstl/core_rt cannot be resolved in either web. xml or the JAR files Deployed with this applicationWorkaround:Download two jar packages: the Standard.jar package and the Jstl.jar

File upload based on the form 1. When you upload a file, the form needs to be prepared:1). Request mode is post: 2). form fields using file: 3). Request encoding using Multipart/form-data: file: 4). About enctype:> application/x-www-form-urlencoded:

There are two ways to associate mappings: Primary key associations and foreign key associationsTake a couple as an example (Husband----Wife)One-way associative entity classes:Husband.javaPackage Com.java.hibernate;public class Husband {private int

Thinkphp supports the use of pathinfo and URL rewrite to provide a friendly URL, just set the ' Url_model ' + 2 in the configuration file. Under Apache only need to open mod_rewrite module can be normal access, but nginx default is not support

How does the controller module of the thinkphp framework implement the Front controller , the rear controller , and how to implement the method with parameters?PHP system comes with the Reflectionclass, Reflectionmethod class, can reflect the user

Due to the needs of the project, PHP calls a third-party java/.net-written Restful Api , some of which require incoming objects when a POST request is sent.The best way to transmit an object in HTTP is to have a JSON string, but as a parameter

HTTP is a non-connected transaction protocol, the underlying use of TCP, connection pooling is a TCP connection, the purpose is to make multiple HTTP requests on a TCP connection to improve performance. At the end of each HTTP request, HttpClient

Curl is really a good tool, not only in PHP but also in other operating systems, is a very useful. But if you have some parameters that are not good enough, you may not get the results you want.In general, when we use CURL to submit POST data, we

style>. Text1{ Width200px; OverflowHidden Text-overflow:ellipsis; -o-text-overflow:ellipsis; -webkit-text-overflow:ellipsis; -moz-text-overflow:ellipsis; White-space:NoWrap}. text2{ Width200px; Word-break:Break-all; Display-webkit-box;

In general, there are two types of jquery plug-ins: A global function that hangs under the jquery namespace, or a static method, or a JQuery object-level approach, a method that hangs under the jquery prototype, This method can also be shared by a

As we all know, ASP. NET MVC has its own routing system. This routing system is extended over the original ASP. Today this article will talk about some of the most critical objects in the MVC routing system.The ASP. NET MVC routing system mainly

1. Ngrok IntroductionNgrok is a reverse proxy that establishes a secure channel between the public endpoint and the locally running Web server. The Ngrok captures and analyzes traffic on all channels for later analysis and replay. Simply put, Ngrok

The purpose of writing a plug-in: to give an existing series of methods or functions in a package for reuse in other places, convenient for later maintenance and improve development efficiency.jquery plug-in typeThere are 3 main types of jquery

PHP's default profile is/usr/local/apache2/conf/php.ini, and we need to make some settings for php.ini in order to make your web more secure!(1) Open PHP Safe modePHP's security model is a very important embedded security mechanism to control some

Knowledge Reserve:Ipvsadm:Managing Cluster ServicesAdded:-a-t|u|f service-address [-S scheduler]Clusters of-T:TCP protocolsClusters of-U:UDP protocols-F:FWM: Firewall tagService-address:ip:portModification:-eDelete:-d-t|u|f service-addressManaging

Chapter One: HTTP Overview Introductionweb浏览器、服务器和相关的web应用程序都是通过http相互通信的,http是现代全球英特网中使用的公共语言。Main contents of this chapter1、web客户端与服务器是如何通信的2、资源(表示web内容)来自何方3、web事务(请求与响应)是怎样工作的4、http通信所使用的报文(请求报文/响应报文)5、底层TCP网络协议6、不同的http协议变体1.2web Client and

I've been learning about the jquery checkbox to check the event, and in summary, you can determine whether a checkbox is selected using the following method: if ( elem.checked ) if ( $( elem ).prop( "checked" ) ) if ( $( elem ).is( "