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swoole optimized configuration and stress test 1, Server hardware: 2, Server side: 3, Client: Modify the following file: vim /etc/sysctl.conf Configuration and installation of pressure measuring tools: 4, Server kernel optimization: 5, Testing 1, Server hardware: 2 vCPU 4 GB (I/O optimization) 100Mbps (peak) 2, Se ...

How to use uwsgi to run web services is not covered here See nginx configuration directly # No load balancing server { listen 9000; add_header Access-Control-Allow-Origin *; add_header Access-Control-Allow-Headers Authorization,Origin,X-Requested ...

Aggregate query The code in the test class is:Using the map collection //Aggregate query @Test public void test4(){ UsersDao dao=new UsersDaoImpl(); Map m=dao.jisuan(); System.out.println(m.get("MAX")); } Output the result of the query. get("") The code in the implementation class ...

Article directory 1, memcached front end data cache 1. Test the lnmp environment. 2. Download and install memcache 3. Modify php.ini configuration file 4. Restart nginx and php 5. Write php connection memcached test 2, memcached for web session retention 1. Modify the configuration file (all web environments) 2. restart ...

1. Custom token: defines a class inherited from: UsernamePasswordToken public class MyToken extend  UsernamePasswordToken 2. Login operation: Subject currentUser = SecurityUtils.getSubject(); currentUser.login(MyToken); 3. Custom password certificate: define a class, inherited from: authorizing realm public class UserRealm ...

Using websocket can realize full duplex communication between client and server, and the bottom layer is tcp protocol. Principle and concept please Baidu. . First, we use idea to build a simple web project, and use maven to manage project dependencies. Add spring spring MVN support capability for the project, and add pom depen ...

By Jeskson Source: front end tavern of dada Request and upload files GET and POST requests const express = require('express'); const app = express(); app.set('view', 'pug'); app.get('/', function(req,res){ // Output response message req.send('hello') }); app.get('/users/:gender', function(req,res){ // Get route parameters let gender = ...

Source code for this article: GitHub. Click here || GitEE. Click here 1. Listener listener 1. Introduction to concepts There are three components of JavaWeb: Servlet, Listener, Filter.A listener is a component that monitors the state changes of related objects in an application. 2. Event Source Object Refers to the object being listened on. ...

The function of softmax     for classification, the function of softmax is to calculate the probability that the sample belongs to each category from the sample value. For example, for handwritten numeral recognition, softmax model obtains the probability values of 0-9 from the given pixel value of handwritten image, and the sum ...

1.1.1 EF thread unique           EF instances are used in the data layer and data session layer, so only one EF instance (the only object in the thread) can be created in a request, and it is encapsulated as a factory class 1.1.2 to prevent cross reference and circular reference, this factory class should be written in the data layer DAL New cl ...