go-redis/cmd-list.go

package main

import (
	"context"
	"fmt"
	"github.com/go-redis/redis/v9"
	"time"
)

func main() {
	// 插入和获取（头部和尾部，左边和右边，L和R）
	//pushPop()

	// 基于索引操作
	//index()

	// 两个队列元素传递
	//two()

	// 支持阻塞的操作
	block()
}

func block() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)
	ctx := context.Background()

	// non-block
	client.Del(ctx, "list-src", "list-dest")
	//client.LPush(ctx, "list-src", "GO", "Redis", "MySQL")
	fmt.Println(client.LPop(ctx, "list-src").Result())
	// block
	fmt.Println(client.BLPop(ctx, 10*time.Second, "list-src").Result())

}

func two() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)
	ctx := context.Background()

	client.Del(ctx, "list-src", "list-dest")

	client.LPush(ctx, "list-src", "GO", "Redis", "MySQL")
	client.LPush(ctx, "list-dest", "Docker", "K8S", "CI/CD")

	// rpoplpush
	//client.RPopLPush(ctx, "list-src", "list-dest")
	//fmt.Println(client.LRange(ctx, "list-src", 0, -1).Result())
	//fmt.Println(client.LRange(ctx, "list-dest", 0, -1).Result())

	// move
	client.LMove(ctx, "list-src", "list-dest", "RIGHT", "LEFT")
	fmt.Println(client.LRange(ctx, "list-src", 0, -1).Result())
	fmt.Println(client.LRange(ctx, "list-dest", 0, -1).Result())
}

// 基于索引操作
func index() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)
	ctx := context.Background()

	client.Del(ctx, "subjects")
	client.LPush(ctx, "subjects", "GO", "Redis", "MySQL", "Go-Redis", "Go-Redis", "K8S", "CI/CD")
	fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())

	fmt.Println(client.LIndex(ctx, "subjects", 3))

	client.LSet(ctx, "subjects", 3, "Go-Redis")
	fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())

	//client.LInsert(ctx, "subjects", "BEFORE", "Go-Redis", "NewSubject")
	client.LInsert(ctx, "subjects", "AFTER", "Go-Redis", "NewSubject")
	fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())

	client.LTrim(ctx, "subjects", 2, 4)
	fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())

}

// 插入和获取（头部和尾部，左边和右边，L和R）
func pushPop() {
	opt, err := redis.ParseURL("redis://default:yourPassword@192.168.157.135:6379/0?dial_timeout=1")
	if err != nil {
		panic(err)
	}

	client := redis.NewClient(opt)
	ctx := context.Background()

	//
	//client.LTrim(ctx, "subjects", -1, 0)
	client.Del(ctx, "subjects")
	// 插入
	client.LPush(ctx, "subjects", "GO")
	// 获取长度
	//fmt.Println(client.LLen(ctx, "subjects").Result())
	client.LPush(ctx, "subjects", "Redis", "MySQL")
	client.LPush(ctx, "subjects", "Redis", "MySQL")
	client.LPush(ctx, "subjects", "Redis", "MySQL")
	client.RPush(ctx, "subjects", "Docker")
	// 获取长度
	//fmt.Println(client.LLen(ctx, "subjects").Result())
	client.RPush(ctx, "subjects", "K8S", "CI/CD")
	// 获取长度
	//fmt.Println(client.LLen(ctx, "subjects").Result())

	// 查看
	fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())

	// 删除元素
	// count:
	// >0, 从头部开始删除 count 个
	// <0, 从尾部开始删除 count 个
	// =0, 删除全部
	client.LRem(ctx, "subjects", 0, "MySQL")

	// 插入，前提是 key 要存在
	//fmt.Println(client.LPushX(ctx, "subjects", "GO").Result())

	// 查看
	fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())

	// 取出
	// Get and Del
	//fmt.Println(client.LPop(ctx, "subjects").Result())
	//fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())
	//fmt.Println(client.RPop(ctx, "subjects").Result())
	//fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())
	//fmt.Println(client.RPopCount(ctx, "subjects", 3).Result())
	//fmt.Println(client.LRange(ctx, "subjects", 0, -1).Result())
}