1 project construction
1.1 new project and operation
1.2 configure basic appearance according to project effect
2. Frame up
2.1 configure tabbar
3 get data from the background
3.1 package request component
3.2 build background application
4 home page
4.1 configure basic data of home page ...
Posted on Sat, 13 Jun 2020 03:34:05 -0400 by hash1
Install MongoDB and start server
1.Download mongoDB service: (version 3.1.2)
2. Install - > select custom - > install next
3. Create a new empty directory on the local disk. The location should not be too deep. For example, C:\db is used to store data files
4. Run mongoDB service: enter the bi ...
Posted on Sat, 13 Jun 2020 03:30:44 -0400 by andy75180
rip and ospf routing protocol
rip routing protocol
The difference between rip and rip2
Frequently asked questions
ospf routing protocol
Implementation proce ...
Posted on Sat, 13 Jun 2020 03:24:24 -0400 by j007ha
Slow Query Log
Understanding slow queries
mysql's slow query is a type of log record provided by mysql that records statements whose execution time exceeds the set threshold.This time-out is configurable, and the default time-out is 10s, which is then written to the log.Then combined with explain to ...
Posted on Fri, 12 Jun 2020 22:13:07 -0400 by john9292
The mybatis framework is a Java-based persistent layer framework that supports custom frameworks. This article is mainly to understand the mybatis framework, to give a simple introduction to the mybatis framework, to understand how the mybatis framework achieves the operation of the Java ...
Posted on Fri, 12 Jun 2020 21:34:54 -0400 by beinerts
1. What is a subquery
-- Requirements: Query who is in the development department
select * from emp;
-- Query by two statements
select id from dept where name='Development Department' ;
select * from emp where dept_id = 1;
-- Use subqueries
select * from emp where dept_id = (select id from dept where name='Marketing Department');
Posted on Fri, 12 Jun 2020 13:09:12 -0400 by JeffK
This series will introduce how to realize step-by-step voice conversation in mp4 video, automatically convert it to text, and output it to word document. In the first part of this article, the video to audio processing is completed first. Open source code address of the project thomas project
Overall technical structure
The following figure sh ...
Posted on Fri, 12 Jun 2020 03:12:12 -0400 by nagasea
Sensitive words and text filtering is an essential function of a website. The key of filtering is the matching of user input content and sensitive words library.
For string matching, the general method is that string substring contains judgment and regular expression judgment, but f ...
Posted on Fri, 12 Jun 2020 03:04:56 -0400 by dustinkrysak
MySQL Clone Plugin(8.0.17 +)
1, What is a clone plug-in?
Allow copying data from a local or remote MySQL server instance
It can take a physical snapshot of InnoDB's schemas, tables, tablespaces, and data dictionary metadata
Supports replication, such as for MGR
2, Using the clone plug-in
2.1 installing the clone plug-in
# Mode 1: ...
Posted on Fri, 12 Jun 2020 02:23:59 -0400 by douga
1. What is Hystrix and why do I need him?
1. In the micro-service architecture, services are split into individual services based on business, and there is a dependency between services (e.g. user adjusts commodities,
Adjust inventory, order, etc.), using RestTemplate+Ribbon and Feign between multiple ...
Posted on Thu, 11 Jun 2020 21:46:36 -0400 by shainh