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Author: Yang Taotao This paper introduces two import features of MySQL 8.0 shell sub-module Util, importTable/import_table (named difference between JS and python versions), and the usage of importJson/import_json. Import_table communicates through traditional MySQL protocol and Import_json communicates through X plug-in protocol. MySQL has a ...

This article follows Log Addition Process for Source Analysis RocketMQ DLedger Continue Leader's process of handling client append requests, one of the most critical aspects: log replication. DLedger multi-copy log forwarding is implemented by DLedger Entry Pusher, which will be described in detail next. Warm Tip: Due to the length of this art ...

Summary of Spring MVC request parameter reception premise In the daily use of Spring MVC for development, it is possible to encounter various types of front-end request parameters. Here is a relatively comprehensive summary. Handler Method ArgumentResol ...

1. introduction Prerequisite: Understand the general process of spring security oauth2 (have a certain understanding of the content of the filter) Main ideas: First, access intercepted resources with expired token Call exception handler when authentication failure returns 401 Token refresh with exception handler and refresh_token T ...

I. Functional Requirement Analysis 1. function Rotation chart List of Recommended Articles Article Label Navigation Article list paging 2. Model Design Based on the functional analysis, we need the following table 1. Table and field analysis Articles Category Table Article table Commentary Table of A ...

A sudden whim wants to implement a PHP-based communication software, compared with the traditional socket-based communication software. Disadvantage: Non-real-time communication, passive transfer of data server, higher operating costs. Advanta ...

How Java writes logistics interface, how to access logistics interface, how to query logistics tracking details according to single number demand According to the order number inputted by users, our backstage identifies the order number and inquires the Api interface of express delivery according to the express bird to realize the function of a ...

ASP.NET MVC calls database data in JSON way to generate statistical graphs ASP.NET MVC Profile: ASP.NET MVC Profile: As the name suggests, the features of this technology are: M: Model; V: Views; C: Controller. Model: A set of classes ...

First: A brief introduction to MonoDB MongoDB is a database between relational database and non-relational database. It is written in C++ language. Its advantage is that the query format supported by MongoDB is very powerful. It can store complex data types and support indexing.   Two: Download Official address: https://www.mongodb.com/ Do ...

Access key and Access key Secret 2. Integrated Short Message Function Registration or login using authentication code Fourth, recharge and check the arrival rate of short messages Five, summary Whether app or web will use SMS verification fun ...