Pressure Testing Tool

Pressure testing tools: ab httpd_load webbench siege The ab command is Apache's own stress testing tool: Principle: ab is the abbreviation of apachebench command. Principle of ab: The AB command creates multiple concurrent access threads to simulate multiple visitors accessing a URL address at the same time. Its testing goal is URL-b ...

Posted on Sun, 16 Jun 2019 13:40:54 -0700 by J4rod

Using Xfermode to cut pictures of various shapes

Generally speaking, if you want a picture to show only specific areas or shapes, you can use Path or Xfermodel in Android. Of course, some simple shapes can also be achieved in xml by using shapes'tags. I won't tell you how shapes and Paths are used here. This blog will tell you howUse Xfermode for picture-picking, which is still a common feat ...

Posted on Sun, 16 Jun 2019 12:21:32 -0700 by tim

Android dynamically sets the selected and unchecked colors of RadioButton and sets the default selected item

Regarding RadioButton dynamic setting background color and font color, stepped through many pits, then I summarized all the problems encountered and solutions, for your reference, I hope to help you. 1. First, let's write the xml file of the background color selected and unchecked by radiobutton. Create a new file under the drawable folder ...

Posted on Sun, 16 Jun 2019 11:59:28 -0700 by jbloom

Java Handwritten Crawlers: 3. Crawling Queues

Chapter 3 Implementation of Crawling Queue > In the second article, the process of deep crawling is realized, but one of the obvious problems is that each crawling is not implemented as an independent task; that is, serial crawling of links in Web pages; therefore, this article will focus on concurrent crawling of web pages. > > The go ...

Posted on Sat, 15 Jun 2019 16:31:11 -0700 by Q

Analysis of librtmp Protocol--RTMP_SendPacket Function

Next, we analyze the RTMP_SendPacket function. Let's first look at the message format chunk of rtmp. head Composition of RTMP The head of RTMP is chunk head in the protocol. As mentioned earlier, a Message + head can be divided into one or more chunks. In order to distinguish these chunks, a chunk head must be needed. The specific imple ...

Posted on Thu, 13 Jun 2019 14:16:29 -0700 by Instigate

Configuration and Verification of Custom Server for Wechat Service Number

Configuration and Verification of Custom Public Number URL Interface configuration information Log on to the Wechat Public Platform and click the Basic Configuration button on the left navigation bar. The following information will appear: In this interface, we can set the custom server address URL, Token, message encryption and decryption ...

Posted on Thu, 13 Jun 2019 13:48:40 -0700 by Enlightened

Five Layout Patterns of android

In Android, there are five layouts: Linear Layout FrameLayout (Frame Layout) Absolute Layout Relative Layout Table Layout Linear Layout Linear layout, this thing, can be understood as a div from the outer frame. First of all, it is listed on the screen from top to bottom. Each Linear Layout can be divided into vertical layout (android ...

Posted on Thu, 13 Jun 2019 13:33:21 -0700 by hyd_guy

day5 Module Learning--XML Module

XML File Processing There are several ways to process XML files. Here we introduce xml.etree.ElementTree as ET. Note: The xml.etree.ElementTree module is not secure against malicious structured data. Each element object has the following properties: 1. tag: string object, which represents the type of data representation; 2. attrib: dictionary o ...

Posted on Tue, 11 Jun 2019 16:18:04 -0700 by stakes

C#Lab (2): Managed and unmanaged types and fetch byte size

I. Preface As verified in the previous article, structured inclusion references still do not change the properties of their value types. However, it has been unclear how the structure stores (contains) reference types. Later, it came to the conjecture that the structure only contained a "storage address pointer" of the reference t ...

Posted on Tue, 11 Jun 2019 11:59:33 -0700 by alexvgtb

Another simple implementation of Android RecycleView Item animation expansion details

Not much to say, let's see the effect first. Generally, many people on the Internet, RecycleView Item expand the effect of the idea is through the add and remove of item to achieve, but what problems will the effect of the graph appear? Each item has rounded corners Each item has spacing If it is also achieved through add and remove, how t ...

Posted on Mon, 10 Jun 2019 13:42:54 -0700 by hubbardude