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Back-end
To the front end , A little understanding of the backend
When I first started choosing a direction when I graduated , I don't know what the front and rear ends are . What is the front end ? What is the b...
2022-04-21 20:16
views 9
Linux View current time
one , View and modify Linux Time zone for 1. View current time zone command : “date -R”2. Modify settings Linux Server time zone method A comm...
2022-04-05 19:36
views 24
Java Middle traversal Map Five ways of
Method 1 : stay for Loop traversal value Map<String, String> map = new HashMap(); map.put(" development ", " development "); ...
2022-04-03 21:00
views 11
Java Object to Map
Mode 1 : utilize FastJson Convert objects to Map/** * * @MethodName: getUserInfoDataByUserId * @Description: according to useId Qu...
2022-04-03 18:47
views 99
redis How to set password
Password setting is briefly introduced here redis How to set password redis There are two ways to set the password , One requires restart redis se...
2022-03-28 12:05
views 85
Dubbo Get local ip error
Foreword we will be due to security vulnerabilities dubbo Upgrade to 2.7.15 edition , When the environment exists docker When deploying .dubbo ...
2022-03-25 13:16
views 142
solve :org.mybatis.spring.MyBatisSystemException nested exception is org.apache.ibatis.exceptions
Mybatis combination Spring report errors :org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.TooManyResult...
2022-03-24 17:27
views 156
from Linux Server download file to local command
from Linux Server downloads folder to local 1, use scp command scp /home/work/source.txt
[email protected]
:/home/work/ # Put the local source.txt ...
2022-03-24 12:04
views 162
redis Cache warm up
1. Idea of cache preheating a. Give in advance redis Partial data embedded in , Re provision of services b. It is definitely impossible to write a...
2022-03-23 11:13
views 336
linux Open specified port command
linux Open specified port command mode 1 CentOS:1, Turn on Firewall systemctl start firewalld2, Open designated port firewall-cmd --zone=public --a...
2022-03-22 10:05
views 28
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