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I happen to have some research on spring source code. Combined with my practical work experience in recent years, I summarize the knowledge points I think are good in spring. I hope it will be helpful to you. Seek attention Welcome to pay attention to my B station accountStation B account number If the content can help you, you are welcome to ...

1. Install redis module package in Python pip install redis 2. Connect Python to redis Redis provides two classes: redis and StrictRedis. StrictRedis is used to implement most official commands. Redis is a subclass of StrictRedis, which is used to use the old version backward. The result retrieved by redis defaults to bytes. We can set deco ...

brief introduction I want to develop a social networking site. Storing friends list on social networking sites has become a big problem in the development process. If I want to save every user's friend information, how should I save it? The user's id corresponds to the friend's id. such a message is a friend relationship map. This relati ...

1, NoSQL 1.1 overview Relational database: a database created based on a relational model. The so-called relationship model is "one to one, one to many, many to many". NoSQL = Not Only SQL, meaning: not just SQL; Generally refers to non relational database. Non relational database: A column of data is stored in the model. The rela ...

Redis data type Redis supports five data types: string, hash, list, set and Zset. String (string) As like as two peas, string is the most basic type of redis. You can understand it as a type that is exactly the same as Memcached, and a key corresponds to a value. The string type is binary safe. This means that the redis string can con ...

brief introduction Didn't you write an article earlier An implementation of like function Your article Some problems were also raised at that time, and today we will solve some of them start Let's talk about the background first to avoid the confusion of not reading the previous article Let's talk about the like function. Here we mainly so ...

1. Introduction to MyBatis cache Mybatis supports caching, but without configuration, it only enables the L1 cache by default, and the L2 cache needs to be manually enabled. The L1 cache is only relative to the same SqlSession. That is, for the same transaction, execute the same query method of the same Mapper multiple times. After the fir ...

1, KubeSphere - set up Redis cluster In the previous article, we introduced how to use KubeSphere to create mysql master-slave replication structure in k8s. In this article, we use KubeSphere to build Redis cluster in k8s. The following is the address of the previous article: https://blog.csdn.net/qq_43692950/article/details/122819844 B ...

What is spring MVC springMVC Is based on MVC Architecture to simplify WEB Application framework; A framework that belongs to the presentation layer. How spring MVC works The user sends a request to the front-end controller. The front-end controller receives the request and calls the processor mapper. The processor mapper calls the processor ...

Redis installation Download address: http://redis.io/download Installation steps: # gcc installation yum install gcc # Download redis-5.0.3 tar. Put Gz in the / usr/local folder and unzip it wget http://download.redis.io/releases/redis-5.0.3.tar.gz tar xzf redis-5.0.3.tar.gz cd redis-5.0.3 # Enter the extracted redis-5.0.3 directory for com ...