Programmer Think

SpringBoot creates the web and packages Tomcat deployed to the server Summary: During Android development, you have to write your own background interface test. Today, you use SpringBoot to create a web, upload and download files, and package Tomcat deployed to the server. SpringBoot is easier to use than spring MVC, SSH and other frameworks. ...

Load balancing is divided into four layers of load balancing and seven layers of load balancing The so-called four layer load balancing refers to the transport layer in the OSI reference model, which is mainly based on ip + port load balancing Realize four layer load balancing: Hardware: F5,BIG-IP,EADWARE Software: lvs,nginx,hayproxy The so-c ...

Filter: manage all web resources for the web server, mainly preprocess some user requests, and then preprocess them after the server responds and return them to the user, such as jsp, static pictures, etc. purpose: 1. Implement URL level access control, 2. Filter sensitive words, 3. Hide some information with *. Interceptor: basically, it is ...

The methods of interprocess communication described in the previous articles, such as pipeline, shared memory, message queue, etc., all depend on the shared resources of a computer system. These resources include file system space, shared physical memory, or message queues, but they can only be used on the same host. So how can we communicat ...

1, Cluster and distributed 1. Cluster 1.1 meaning of cluster Cluster, cluster It is composed of multiple hosts, but only as a whole Question: In Internet applications, as the site has higher and higher requirements for hardware performance, response speed, service stability and data reliability, a single server is unable to meet its n ...

Query and edit the content within the current [1:00, 2:00] interval find /etc -mmin 2 / / Note: it refers to the minutes from [n-1, n] Query and edit the content within the current [0:00, 2:00] interval find /etc -mmin -2 Query and edit the content within the interval of [2:00, positive infinity] from now on find /etc -mmin +2 Query and e ...

catalogue Blogger introduction 💂 Personal home page: Suzhou program white 💂 Individual communities: CSDN programs across the country 🤟 Introduction to the author: member of China DBA Alliance (ACDU), administrator of CSDN program ape (yuan) gathering places all over the country. Currently engaged in industri ...

2, Server A search mac svn is all this!!! excessive The Mac system has its own svn. We don't need to install the svn server anymore. We can start our svn server in a few simple steps. 1. Open terminal and use the following command to make sure that svnserve is installed on our Mac OS system. The above is from the mac hundreds of years ...

background The company has a channel system, which is specially connected with three-party channels. There is no business logic. It mainly works on message conversion and parameter verification, which plays a connecting role. Recently, after optimizing the response time of the interface and the code, the time still can not meet the requiremen ...

Request Forwarding forword process: Empty the buffer where Response stores response body data.If the target resource is SServlet or JP, their service() method is called to send the result of the response generated by the method to the client. If a static HTML document is in the target resource file system, the data in the document is read ...