Programmer Think

Before  , there was a small test project that needed to synchronize some local data to Alibaba cloud database regularly. It was implemented by executing LOAD DATA with the most mechanical script. Here is a brief introduction. LOAD DATA can quickly read text file data into the table (LOAD DATA is us ...

The main configuration class of SpringBoot @SpringBootApplication public class StartEurekaApplication { public static void main(String[] args) { SpringApplication.run(StartEurekaApplication.class, args); } } Click @SpringBootApplication to see that @SpringBootApplication is a comp ...

Background An account can only be logged in at one place. Similar business requirements are very common in existing post management systems. However, in the original spring security oauth2 token method process (so-called login) can not meet similar needs. Let's first look at TokenEndpoint's method flow The client accesses the / oauth/token int ...

When it comes to [Nginx] () servers, I think the biggest characteristics are lightweight and high performance. Through testing on several different servers, it is found that its concurrency is very strong, and it eats a lot less [memory] (). At present, it is the preferred HTTP and reverse proxy server for most webmasters. The webmaster's own ...

Please indicate the source of the reprint: http://blog.csdn.net/l1028386804/article/details/78845722 Imagine an environment where you can access an SSH server on your intranet and you also want to access a Web server on the same segment.You cannot access the Web server directly, but SSH servers can access the Web server and there are no tools ...

Explain 1. If you need to perform time-consuming operations in the Server program, such as a chat Server sending broadcast, and a Web Server sending mail. If these functions are executed directly, the current process will be blocked, resulting in slow response of the Server. Swoole provides the function of asynchronous task processing, which ca ...

session viscosity Each request is allocated according to the hash result of the access ip, so that each visitor accesses a back-end server, which can solve the session problem. upstream backserver { ip_hash; server 192.168.0.14:88; server 192.168.0.15:80; } But there are disadvantages. There is a single risk. If I have logged in on port 192.1 ...

session viscosity Each request is allocated according to the hash result of the access ip, so that each visitor accesses a back-end server, which can solve the session problem. upstream backserver { ip_hash; server 192.168.0.14:88; server 192.168.0.15:80; } But there are disadvantages. There is a single risk. If I have logged in on port 192.1 ...

Written in front I thought I would never use smokeping again, but I was wrong. According to the last use for about half a year, it's usually used once for sex and again this time. I totally forgot to clean it. Then start install apt-get -y install smokeping Configuration service For the configuration of the Web server, refer to the above Ru ...

Servlet overview A servlet is a small Java program (that is, a server-side applet) running in a Web server. Servlets typically receive and respond to requests from Web clients over HTTP (Hypertext Transfer Protocol). Preparation process: 1. Write a java class to implement the servlet interface 2. Mod ...