golang does not generate uuid

In recent years, Golang has become popular all over the world and is widely used in various enterprise-level application development and Internet application development fields. During the development process of Golang, many developers need to generate UUID (Universal Unique Identification Code), but Golang itself does not provide a method for generating UUID. So, why doesn't Golang generate UUID? How does it get the UUID?

1. The reason why Golang does not generate UUID

UUID refers to a 128-bit number, which is used to identify information in the computer system. Although UUID is widely used in Internet technology, Golang does not provide a native UUID generation method. So, why doesn't Golang generate UUID?

First of all, it needs to be clear that Golang is a simple, efficient, safe, easy to learn and develop programming language. It advocates the concept of "less is more", so it will not be in the language standard library Provides too many methods and functions. As for UUID, which is not a core function of Golang, developers cannot focus too much on it.

Secondly, Golang’s design concept is to try to avoid too many dependent packages, especially some general tool packages that have little to do with the business. If Golang provides a UUID generation method, a UUID generation library will need to be introduced when using it, which will bring additional dependencies and increase the size and complexity of the package.

Finally, in order to ensure the flexibility of the code, Golang encourages developers to encapsulate some common functions in their own libraries. In this way, in subsequent application development, they can directly call the functions in their own libraries. function without relying on external packages. Therefore, if you need to use UUID, Golang developers can find related implementations in other languages ​​​​or third-party libraries.

2. How to obtain UUID in Golang

Although Golang itself does not provide a UUID generation method, when using UUID, we can still use third-party libraries to achieve it. Below, we introduce several methods to obtain UUID in Golang.

1. Using the StrUtils package

StrUtils is a package for string operations in Golang, which includes UUID generation methods. Before using this method, you need to install the package first.

Installation: go get github.com/xiongyejun/xyjgo/strutils

Use:

import "github.com/xiongyejun/xyjgo/strutils"
// 获取UUID
uuid := strutils.GenUUID()

2. Use uuid package

Except In addition to the StrUtils package, Golang also has a third-party library specifically used for UUID generation - the UUID package. The library supports operating systems such as Windows, Linux, and macOS and is easy to use.

Installation: go get github.com/google/uuid

Use:

import "github.com/google/uuid"
// 获取UUID
uuid := uuid.New().String()

3. Use satori package

satori is Golang Another third-party library for UUID generation, it not only supports UUID, but also supports snowflake algorithm (distributed ID generation algorithm) and flake algorithm (distributed ID generation algorithm proposed by Twitter).

Installation: go get github.com/satori/go.uuid

Usage:

import "github.com/satori/go.uuid"
// 获取UUID
uuid, _ := uuid.NewV4()

Summary

The above are the reasons why Golang does not generate UUID and How to get UUID in Golang. Although Golang itself does not provide a UUID generation method, we can still easily generate UUID by using third-party libraries. Whether in enterprise-level application development or Internet application development, UUID is very important, so it is necessary to master its generation method in order to better apply it in actual development.

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