From fbb7de392092fb654fecc26b2f345d08dea54786 Mon Sep 17 00:00:00 2001 From: coward Date: Fri, 7 May 2021 09:05:20 +0800 Subject: [PATCH] =?UTF-8?q?=E6=8F=90=E4=BA=A4?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .gitignore | 19 +++++++ LICENSE | 73 ++++++++++++++++++++++++ README.md | 33 +++++++++++ cache.go | 148 +++++++++++++++++++++++++++++++++++++++++++++++++ cache_test.go | 38 +++++++++++++ go.mod | 9 +++ go.sum | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++ utils.go | 15 +++++ 8 files changed, 485 insertions(+) create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 README.md create mode 100644 cache.go create mode 100644 cache_test.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 utils.go diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..c85ffc4 --- /dev/null +++ b/.gitignore @@ -0,0 +1,19 @@ +# ---> Go +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, built with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# Dependency directories (remove the comment below to include it) +# vendor/ + +# 屏蔽指定文件夹 +.idea \ No newline at end of file diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..137069b --- /dev/null +++ b/LICENSE @@ -0,0 +1,73 @@ +Apache License +Version 2.0, January 2004 +http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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We also recommend that a file or class name and description of purpose be included on the same "printed page" as the copyright notice for easier identification within third-party archives. + +Copyright [yyyy] [name of copyright owner] + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + +http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. diff --git a/README.md b/README.md new file mode 100644 index 0000000..9dfde39 --- /dev/null +++ b/README.md @@ -0,0 +1,33 @@ +#rds_cache_go + +##说明 +rds_cache_go是基于go-redis的缓存工具包 + +##安装 +go get -u github.com/cowardmrx/rds_cache_go + +## 使用 +```go +var caches = NewCache(WithHost("192.168.0.151"), WithPort("6379"), WithDbname(13)) + +// PUT +err := caches.Put("key1", "va", 1*time.Minute) + +// PUT json +amap := map[string]interface{}{ + "data" : "data1" +} + +amapJson,_ := json.Marshal(amap) + +err := caches.Put("key2",amapJson,1 * time.Minute) + +// Exist +exist := caches.Exist("key2") + +// Delete +result,err := caches.Delete("key2") + +// Delete More +result,err = caches.Delete("key2","key3","key4") +``` \ No newline at end of file diff --git a/cache.go b/cache.go new file mode 100644 index 0000000..f48f4e7 --- /dev/null +++ b/cache.go @@ -0,0 +1,148 @@ +package rds_cache_go + +import ( + "context" + "fmt" + "github.com/go-redis/redis/v8" + "time" +) + +type config struct { + Host string + Port string + Password string + DB int +} + +type Option func(ca *config) + +func WithHost(host string) Option { + return func(ca *config) { + ca.Host = host + } +} + +func WithPort(port string) Option { + return func(ca *config) { + ca.Port = port + } +} + +func WithPassword(password string) Option { + return func(ca *config) { + ca.Password = password + } +} + +func WithDbname(db int) Option { + return func(ca *config) { + ca.DB = db + } +} + +type Cache interface { + // Put 放入缓存 + Put(key string, value interface{}, ttl time.Duration) error + // Exist 判断某个缓存是否存在 + Exist(key string) bool + // Get 获取某个缓存的值 + Get(key string) interface{} + // Delete 删除指定缓存 + Delete(keys ...string) int64 +} + +// @method NewCache +// @description: 初始化一个cache对象 +// @param opts ...Option +// @return Cache +func NewCache(opts ...Option) Cache { + + cha := new(config) + + for _, v := range opts { + v(cha) + } + + rClient := new(cache) + + rClient.client = redis.NewClient(&redis.Options{ + Addr: fmt.Sprintf("%s:%s", cha.Host, cha.Port), + Password: cha.Password, + DB: cha.DB, + }) + + rClient.ctx = context.Background() + + return rClient + +} + +type cache struct { + client *redis.Client + ctx context.Context +} + +// @method Put +// @description: 放入缓存 +// @receiver c +// @param key string key +// @param value interface{} 值 +// @param ttl time.Duration 过期时间 +// @return error +func (c *cache) Put(key string, value interface{}, ttl time.Duration) error { + _, err := c.client.Set(c.ctx, key, value, TTL(ttl)).Result() + + if err != nil { + return err + } + + return nil +} + +// @method Exist +// @description: 判断指定缓存是否存在 +// @receiver c +// @param key string 缓存key +// @return bool +func (c *cache) Exist(key string) bool { + result, err := c.client.Exists(c.ctx, key).Result() + if err != nil { + return false + } + + if result <= 0 { + return false + } + + return true +} + +// @method Get +// @description: 获取指定缓存 +// @receiver c +// @param key string 缓存key +// @return interface{} +func (c *cache) Get(key string) interface{} { + result, err := c.client.Get(c.ctx, key).Result() + + if err != nil { + panic("get cache by " + key + " failed: " + err.Error()) + } + + return result +} + +// @method Delete +// @description: 删除指定缓存 +// @receiver c +// @param keys ...string +// @return int +func (c *cache) Delete(keys ...string) int64 { + result, err := c.client.Del(c.ctx, keys...).Result() + + if err != nil { + panic("delete cache failed: " + err.Error()) + } + + return result +} diff --git a/cache_test.go b/cache_test.go new file mode 100644 index 0000000..9212e45 --- /dev/null +++ b/cache_test.go @@ -0,0 +1,38 @@ +package rds_cache_go + +import ( + "fmt" + "testing" + "time" +) + +var caches = NewCache(WithHost("192.168.0.151"), WithPort("6379"), WithDbname(13)) + +func TestCache(t *testing.T) { + + err := caches.Put("key1", "va", 1*time.Minute) + if err != nil { + fmt.Printf("存放失败") + } + + fmt.Println("放入存放成功") +} + +func TestCache_Exist(t *testing.T) { + exi := caches.Exist("key1") + + fmt.Println(exi) +} + +func TestCache_Get(t *testing.T) { + result := caches.Get("key1") + fmt.Println(result) +} + +func TestCache_Delete(t *testing.T) { + caches.Put("key1", "value1", 0) + caches.Put("key2", "value2", 0) + + resunt := caches.Delete("key1", "key2") + fmt.Println(resunt) +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..3dab54e --- /dev/null +++ b/go.mod @@ -0,0 +1,9 @@ +module github.com/cowardmrx/rds_cache_go + +go 1.17 + +require ( + github.com/cespare/xxhash/v2 v2.1.2 // indirect + github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect + github.com/go-redis/redis/v8 v8.11.4 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..cfd973d --- /dev/null +++ b/go.sum @@ -0,0 +1,150 @@ +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8= +github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE= +github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= +github.com/coreos/etcd 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