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A preliminary introduction to TableResolver The functions introduced in the introduction can be realized only by configuring XML, which is very convenient. However, in the actual project, the situation will be more flexible and changeable, which can not be covered only through configuration. From the beginning, we will introduce how to extend ...

1, Stand alone installation 1.1 elasticsearch and kibana There are three ways to install es and kibana: yum, rpm, tar gz The latter two methods can be used in the Intranet environment when yum needs to open the external network. 1.1.1 es installation How we install rpm this time: Download the rpm file and upload it to the server, and ins ...

3.1 Http protocol development 3.1.1 basic knowledge HTTP (Hypertext Transfer Protocol) protocol is an application layer protocol based on TCP transmission protocol. Its development is the result of the cooperation between the World Wide Web association and the Internet working group IETF. HTTP is an object-oriented protocol belonging to t ...

Actual combat: can you use SpringBoot to integrate JWT to realize token verification? Yesterday Author: stream of consciousness Source: www.jianshu.com com/p/e88d3f8151db   JWT official website: https://jwt.io GitHub address of JWT(Java version): https://github.com/jwtk/jjwt   #What is JWT   Json web token (JWT) is a JSON based open ...

proxy pattern Proxy pattern is a structural design pattern that allows you to provide alternatives to objects or placeholders for them. The agent controls access to the original object and allows some processing before and after the request is submitted to the object. Agent mode structure The service interface declares the functions provid ...

Personal profile The author is a junior from Heyuan. The following notes are some shallow experience of the author's self-study road. If there are mistakes, please correct them. In the future, we will continue to improve our notes to help more Java lovers get started. SpringBoot+JDBC 1. Import JDBC and mysql dependencies In POM XML import t ...

1 Overview This article mainly describes the similarities and differences between ArrayList and LinkedList, as well as their underlying implementation environment (OpenJDK 11.0.10). 2 difference between the two Before introducing the underlying implementation of the two in detail, let's take a brief look at the similarities and differences b ...

How Java works: Write source code - > compile by compiler - > output - > JVM (Java virtual machine, that is, Java environment) reads and executes the output content Circular statement: data type typeNumber of byteslengthbyte1-128~127short 2-32768~32767int 4-2147483648~2147483647long 8-9223372036854775808L~9223372036854775807Lfloat4+ ...

What's the use of unit testing Improve the work efficiency of the whole team. Quality code is a contribution to the whole team Improve the programmer's sense of responsibility and code quality. Through unit testing, ensure that your code is reliable and complete, which is responsible for yourself and the team Get a regression test tool for ...

1, BackgroundWhen the server provides interface services to the outside, whether it is providing HTTP interfaces to the front end or RPC interfaces to other internal servers, it often faces such a problem, that is, how to gracefully solve the verification of various interface parameters?In the early days, when making the HTTP interface provided ...