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This is the fourth in a series of Java crawler blogs, in the last one Java crawler encounters data asynchronous loading, try these two methods! ) In this article, we have a brief talk about how to deal with the problem of asynchronous loading of data from the perspective of built-in browser kernel and reverse parsing. In this article, we will b ...

What is heterogeneous data processing? Simply put, in order to satisfy the expansion of our business, data is transformed from a specific format to a new data format. Why does this need arise? In traditional enterprises, data are mainly stored in relational databases, such as MySQL, but in order to meet the expansion of demand, the dimension ...

Preface For the application scenario of "nearby people" in the field of location-based services, many spatial indexes such as PG, MySQL and Mongo DB can be used to implement it. Redis, which combines its ordered queue zset and geohash coding, achieves the function of spatial search and has a very high operational efficiency. This pap ...

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I. Environment and Version Linux: centos7 Three Linux Services 192.168.72.129 192.168.72.130 192.168.72.131 Redis: redis-4.0.14 Uploading Redis Software 1. Creating Software Catalogue [root@localhost local]# cd /usr/local/ [root@localhost local]# mkdir mysoft 2. Xftp upload software, decompression [root@localhost mysoft]# cd /usr/local/mysoft/ ...

In this chapter, we will briefly introduce the data types commonly used in Redis and some of the commands we commonly use, let's go. Preparatory environment: Redis. See the previous section for details.   The next command we use is the client tool that comes with redis. There is a redis cli under the directory where redis is installed. We c ...

Preface Random passwords are often used in operation and maintenance, such as server, Mysql, Redis and other password settings. Random passwords are relatively safe. Here we use Python to implement a random cipher generator Recognizing random module random module can randomly choose one character from multiple characters. We can put all the nu ...

SpringBoot+Shiro+JWT Privilege Management Shiro Apache Shiro is a powerful and easy-to-use Java security framework that performs authentication, authorization, password, and session management. With Shiro's easy-to-understand API, you can quickly and easily access any application, from the smallest mobile application to the largest network an ...

Common Command Description Redis server: redis-server Redis client: redis-cli Redis performance testing tool: redis-benchmark AOF File Repair Tool: redis-check-aof RDB File Repair Tool: redis-check-rd redis sets temporary password: config set requirepass password redis gets the temporary password: config get requirepass start and stopping ...

1.ServiceStack.Redis Packaging The encapsulated RedisHandle operation class is named RedisHandle, with the following code blocks (showing only part of the code). Its features are as follows: 1) Manage connections using connection pools, as shown in the PooledClientManager property in the code. If the connection pool is not used, but the code ...