golang install redis 3

Preface

Redis is a high-performance NoSQL database that can handle key-value data types. It supports a variety of data operations, such as strings, hash tables, lists, sets, etc., and is a very popular database.

As an emerging programming language, Golang also has high performance and can be used in conjunction with Redis to improve the overall performance of the system. This article will introduce how to use Redis in Golang and explain the installation process of Redis 3 in detail.

Redis 3 Installation

1. Download Redis

First you need to download the Redis compressed package from the Redis official website. You can find the download link for Redis on the official website: http://redis.io/download. Find the link to the Redis 3 version on the download page, then copy the link address, and execute the wget command in the Linux terminal to download:

wget http://download.redis.io/releases/redis-3.2.12.tar.gz

2. Decompress Redis

After the download is complete, Decompress the Redis compressed package to the specified location (here is /usr/local/redis):

tar xzf redis-3.2.12.tar.gz -C /usr/local/redis

3. Compile Redis

Enter the decompressed Directory:

cd /usr/local/redis/redis-3.2.12

Execute the make command to compile:

make

4. Install Redis

After compilation is completed, execute the make install command to install Redis:

make install

After the installation is completed, confirm whether Redis has been installed normally and execute the following command:

redis-server --version

If the version information of Redis can be displayed, it means that the installation of Redis has been completed.

Golang uses Redis

1. Install the Redis client package

Using Redis in Golang requires installing the corresponding client package. You can use the go get command to install:

go get github.com/go-redis/redis

2. Connect to Redis database

Connecting to Redis in Golang is very simple, use the # in the client package installed in the first step. ##NewClient Function:

import "github.com/go-redis/redis"

func main() {
    client := redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "", // no password set
        DB:       0,  // use default DB
    })

    pong, err := client.Ping().Result()
    fmt.Println(pong, err)
}

Data operation

After the connection is successful, data operations can be performed. The following are some common data operation examples:

func main() {
    // 初始化客户端
    client := redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "", // no password set
        DB:       0,  // use default DB
    })

    // 向 Redis 中写入数据
    err := client.Set("key", "value", 0).Err()
    if err != nil {
        panic(err)
    }

    // 从 Redis 中读取数据
    val, err := client.Get("key").Result()
    if err != nil {
        panic(err)
    }
    fmt.Println("key", val)

    // 删除 Redis 中的数据
    err = client.Del("key").Err()
    if err != nil {
        panic(err)
    }

    // 获取 Redis 中所有的 key 列表
    keys, err := client.Keys("*").Result()
    if err != nil {
        panic(err)
    }
    fmt.Println("keys", keys)
}

The above examples demonstrate the most basic data operations in Redis. For more complex data operations, please refer to the Redis official documentation.

Conclusion

As a high-performance database, Redis is very commonly used in development. This article introduces the installation process of Redis 3 and demonstrates how to connect and perform data operations in Golang. By studying this article, readers can easily use Redis to improve application performance in future projects.

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