Using Redis to implement the cut-to-program operation

This project is a Spring boot project Redis Cutting Programming Target: Add a comment to the method to cache when querying Method: Custom Note+AOP Section Programming step Say nothing but go directly to the code demonstration Step One Definition Notes @Retention(RetentionPolicy.RUNTIME) @Target( ...

Added by Bad HAL 9000 on Tue, 23 Jun 2020 05:27:47 +0300

How to Design High Performance Distributed Locks

What is a distributed lock? In a JVM, where multiple threads are concurrent, we can use synchronous or Lock locks to ensure that only one thread can modify shared variables or execute code blocks at a time.However, our services are deployed on a distributed cluster basis, and for some shared resources, the use of Java locks in a distributed en ...

Added by gersh on Wed, 17 Jun 2020 19:51:19 +0300

Resource release of Redis

Write in front    see GitHub for all sample codes in this tutorial: https://github.com/selfconzrr/Redis_Learning Why close the connection? For example, the following code: for(int i = 2000; i < 3000; i++) { Jedis jedis = redisDao.getJedis(); jedis.set("user:" + i, jedis.toString()); System.o ...

Added by André D on Mon, 01 Jun 2020 20:42:26 +0300

Java seckill system-2.7-jedis redis.clients.jedis.exceptions.jedisconnectionexception: problem solving

 1. application.properties #thymeleaf spring.thymeleaf.prefix=classpath:/templates/ spring.thymeleaf.suffix=.html spring.thymeleaf.cache=false spring.thymeleaf.content-type=text/html spring.thymeleaf.enabled=true spring.thymeleaf.encoding=UTF-8 spring.thymeleaf.mode=HTML5 # mybatis mybatis.type-ali ...

Added by flhtc on Sun, 26 Jan 2020 16:53:35 +0200

Spring boot2.x and redis reduce integrated operation redis cluster case

scene After a machine crashes in the redis cluster, the redis of the background service will always report an error and cannot connect to the redis cluster. View the redis cluster through the command. It is found that the redis cluster cluster is normal. The standby slave machine has been upgraded to master. Conjecture and verification It is pr ...

Added by wudiemperor on Wed, 08 Jan 2020 16:38:18 +0200

Distributed Lock Implemented by Single-machine redis in springboot

Distributed locks are often required in microservices to perform some tasks.For example, deleting expired data periodically requires only one to execute in multiple services. The following describes distributed locks in a less rigorous sense, because redis implements distributed locks in a rigorous sense or is more complex, using the following ...

Added by RickyF on Fri, 03 Jan 2020 09:02:48 +0200

Springboot + redis (stand-alone)

This time, I want to share with you that redis is used in spring boot integration. Here, the jedis client of redis is used (here, redis running by docker, please refer to docker quickly builds several common third-party services ), add dependencies as follows: <dependency> <groupId>redis.clients</groupId> <artifact ...

Added by kishanprasad on Thu, 02 Jan 2020 15:07:01 +0200

Redis distributed lock mechanism - technical support for distributed cluster deployment

There are three ways to implement the distributed lock: 1. Optimistic database lock; 2. Redis based distributed lock; 3. ZooKeeper based distributed lock. This blog will introduce the second way to implement distributed locks based on redis. Although there are various blogs about the implementation of redis distributed lock on the Internet, the ...

Added by RealDrift on Fri, 20 Dec 2019 09:50:59 +0200

Spring Boot integrates Redis

Spring Boot integrates Redis spring boot provides the spring data Redis library to integrate Redis operations, and realizes the integration with Redis through simple configuration information. PS: individuals are still used to using Jedis to operate Redis for Java clients Don't talk too much, just code. : -) Maven dependence <dependency&gt ...

Added by CaptainStarbuck on Tue, 03 Dec 2019 14:55:32 +0200

Spring boot integrates redis to cache some knowledge points

Preface Recently, we are working on a smart home platform. Considering that the control of home needs fast response, we plan to use redis cache. On the one hand, it can reduce the pressure of database, on the other hand, it can improve the response speed. The technology stack used in the project is basically the familiar springboot family buck ...

Added by colby.anderson on Sat, 09 Nov 2019 11:46:04 +0200