OKHttp quick start

OKHttp quick start OKHttp quick start Synchronization request get Asynchronous request get post Set request header Download File encapsulation Interceptor Application interceptor Network connector OKHttp quick start Official website: https://square.github.io/okhttp/ Code warehouse: https:/ ...

Posted by Lodius2000 on Mon, 22 Jun 2020 09:31:27 +0200

Enterprise practice (13) details of LVS load balancing DR (direct routing) mode

What is cluster A group of computers interconnected by a high-speed network and managed in a single system mode. Many servers are put together to provide the same service, which looks like only one server in the client. It can obtain relatively high benefits in performance, reliability and flexibilit ...

Posted by sone_br on Mon, 22 Jun 2020 07:03:24 +0200

Yang Juyi's design mode

1, What is the sharing mode When it comes to sharing element mode, the first thing I think about is pool technology. String constant pool, database connection pool, buffer pool and so on are all applications of sharing element mode, so sharing element mode is an important way to realize pool technology. ...

Posted by jeturman on Mon, 22 Jun 2020 06:09:17 +0200

java Network Programming Practice-Native NIO Non-Blocking Communication Network Programming Practice

Preface Last mentioned to improve our RPC framework, this week take the time to explore the native NIO non-blocking network programming ideas that JDK provides to us.NIO libraries were introduced in JDK 1.4.NIO makes up for the deficiency of the original I/O by providing high-speed, block-oriented I/O in standard Java code. Main differences ...

Posted by nike121 on Mon, 22 Jun 2020 00:19:57 +0200

Mobile GIS Development: mobile base station positioning + offline slice map (vector vtpk + grid tpk) navigation Android APP

catalog Write at the beginning text 1, Interface layout 2, Function realization 1. Display online map and positioning 2. Acquisition and display of base station information 3. Acquisition and analysis of geographic information 4. Display grid offline map (. tpk) 5. Display vector offline map ...

Posted by jesirose on Sun, 21 Jun 2020 12:54:19 +0200

SQL Server database [system design assignment], [teaching management system], [complete code]

Catalogue 1. Textbook [P281-P287] 2. SQL statement [create data table (6 tables), insert data] 2.1. Chinese field representation 2.2. English field representation 3. New view 3.1, 6 table general view 3.2. Total credits (student number, credits) 3.3. Total credit statement 4. Query exercise 1. Textbook [P281-P287] ...

Posted by kutatishh on Sun, 21 Jun 2020 08:04:30 +0200

Developing websites from scratch

In the last search function, some fans mentioned whether it can be set as optional search criteria. Naturally, the answer is yes, so I added a drop-down option based on the previous week Effect display Here I implement the function of drop-down item based on the two ways of select tag and a tag. ...

Posted by dominicd on Sat, 20 Jun 2020 05:38:10 +0200

Program life three language implementation - user login interface random verification code, source code sharing!

Before using mobile phone login do not verify code, now login always verify code, boring people to death! So why do you have annoying verification codes every time you log in? In fact, this involves the complete network problem! 1, Application scenario Many partners should know: Prevent hackers from calling the attack system through ...

Posted by pob123 on Fri, 19 Jun 2020 13:30:09 +0200

Go language microservice framework practice: 7.TLS authentication and Token authentication

TLS authentication and Token authentication @author: DavieCopyright: Beijing Qianfeng Internet Technology Co., Ltd In the last lesson, we learned four flow patterns of gRPC go framework. In the actual production environment, a full-featured service includes not only the basic function of method cal ...

Posted by t0ta11 on Fri, 19 Jun 2020 10:31:10 +0200

[AWS] [container] [ECS] container hands on experiment 201

Before the experiment, we should first understand the overall ECS architecture of this experiment: The experiments include: 1. Create and define ECS tasks 2. Create ECS Cluster 3. Deploy and apply to ECS Service 4. Update the application through Task Definition 5. Container extension Preparation before experiment: AWS account Familiar with I ...

Posted by PAZII on Fri, 19 Jun 2020 09:32:48 +0200