Programmer Group

I. overview of RedisTemplate 1.Redis Redis is an open source key value database, which runs in memory and is written in C language. Redis is usually used for enterprise development to implement caching. Similar products include Memcache. Memcached, etc. 2.Jedis Jedis is a Java oriented client officially launched by Redis, which provides man ...

Reverse proxy In fact, an agent is an intermediary. A and B can be connected directly. A C is inserted in the middle, and C is an intermediary. According to the role of agents, they can be divided into forward agents and reverse agents The forward proxy is the client proxy, the proxy client, and the server does not know the client that actuall ...

What is distributed caching? In the original application, the cache is usually stored in the JVM of the local application. However, with the trend of project microservicing, after the project is reconstructed in the way of microservice, the cache should be managed and stored by a separate server and deployed in different physical areas to achi ...

Redis is a cache solution that we use a lot in our daily work. Using cache can improve the performance of blind date source code and greatly reduce the pressure on the database. However, improper use will also cause many problems. Next, let's take a look at the cache penetration problem in blind date source code development. Cache penetration ...

8.1 L1 cache MyBatis has built-in a powerful transactional query caching mechanism, which can be easily configured and customized. By default, only the local session cache, i.e. L1 cache, is enabled. It only caches the data in a session, i.e. an sqlsession. Cache invalidation: Query different things Adding, deleting and modifying may chan ...

Server side rendering technology NUXT What is server-side rendering Server side rendering, also known as SSR (Server Side Render), completes the content of the page on the server side, rather than obtaining data through AJAX on the client side. The advantages of server-side rendering (SSR) are: better SEO, because the search engine crawl ...

Catalog Article Directory Preface 1.Level 1 Cache 1.1.What is a Level 1 Cache 1.2.Test 1-Same SqlSession 1.3. Test 2-Different SqlSession 1.4.Test 3 - Refresh Cache 1.5.summary 2.Secondary Cache 2.1.What is a secondary cache 2.2.Configure Secondary Cache 2.2.1.Global Switch 2.2.2.Separate off 2.2.3.Code Configuration 2.2.4.Detail ...

preface Spring's cache cache is similar to java's JDBC. It defines a set of specifications. Third party caching needs to implement this set of specifications in order to use the caching function through the Spring API. The core interfaces of this specification are CacheManager and cache. CacheMananger is the entry to get the cache. Cache is an ...

1, Preface: In the era of big data, the concurrency of network requests leads to huge database I/O overhead. Therefore, in order to alleviate the pressure of the database, caching technology is essential. Among them, redis is basically one of the server's caching services. Although caching technology is very easy to use, there will be a variet ...

//If the current cache does not meet the requirements, close it if (cacheCandidate != null && cacheResponse == null) { closeQuietly(cacheCandidate.body()); // The cache candidate wasn't applicable. Close it. } // If the network cannot be used and there is no qualified cache, a 504 error will be thrown directly if (networkReques ...