{"id":3166,"date":"2019-04-18T16:02:56","date_gmt":"2019-04-18T08:02:56","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=3166"},"modified":"2019-04-18T16:03:22","modified_gmt":"2019-04-18T08:03:22","slug":"golang%e6%93%8d%e4%bd%9credis%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/3166","title":{"rendered":"Golang\u64cd\u4f5credis\u6307\u5357"},"content":{"rendered":"
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\u539f\u5e16\u5730\u5740<\/a><\/div>\n
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\n<\/div>\n<\/div>\n<\/div>\n
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\u76f8\u5173\u6a21\u5757\u4ee5\u53ca\u5b89\u88c5\u65b9\u5f0f<\/h3>\n

redigo\u6a21\u5757<\/a>
\nredis-cluster\u5ba2\u6237\u7aef\u5b9e\u73b0<\/a>
\ngo-redis\u6a21\u5757<\/a><\/p>\n

\u6ce8\u610f:\u5982\u4e0b\u64cd\u4f5c\u4f7f\u7528redigo\u6a21\u5757\u8fdb\u884credis\u7684\u64cd\u4f5c<\/code><\/p>\n

\u5b89\u88c5\u4f7f\u7528<\/strong><\/p>\n

$ go get -v github.com\/gomodule\/redigo\r\n$ cat redis-conn.go\r\n\/**\r\n * @File<\/span> Name: redis-conn.go\r\n * @Author<\/span>: xxbandy @http<\/span>:\/\/xxbandy.github.io\r\n * @Email<\/span>:\r\n * @Create<\/span> Date: 2018-04-04 07:04:57\r\n * @Last<\/span> Modified: 2018-04-08 14:04:38\r\n * @Description<\/span>:\r\n *\/<\/span>\r\npackage main\r\nimport (\r\n    \"fmt\"<\/span>\r\n    \"os\"<\/span>\r\n    redis \"github.com\/gomodule\/redigo\/redis\"<\/span>\r\n)\r\n\/\/\u81ea\u5b9a\u4e49\u7684redis\u5b9e\u4f8b\u7684\u7aef\u53e3\u4e3a32771<\/span>\r\nfunc main() {\r\n    \/\/\u4f7f\u7528redis\u5c01\u88c5\u7684Dial\u8fdb\u884ctcp\u8fde\u63a5<\/span>\r\n    c,err := redis.Dial(\"tcp\"<\/span>,\"localhost:32771\"<\/span>)\r\n    errCheck(err)\r\n\r\n    defer c.Close()\r\n\r\n    \/\/\u5bf9\u672c\u6b21\u8fde\u63a5\u8fdb\u884cset\u64cd\u4f5c<\/span>\r\n    _,setErr := c.Do<\/span>(\"set\"<\/span>,\"url\"<\/span>,\"xxbandy.github.io\"<\/span>)\r\n    errCheck(setErr)\r\n\r\n    \/\/\u4f7f\u7528redis\u7684string\u7c7b\u578b\u83b7\u53d6set\u7684k\/v\u4fe1\u606f<\/span>\r\n    r,getErr := redis.String(c.Do<\/span>(\"get\"<\/span>,\"url\"<\/span>))\r\n    errCheck(getErr)\r\n    fmt.Println(r)\r\n\r\n}\r\n\r\nfunc errCheck(err error) {\r\n    if<\/span> err != nil {\r\n        fmt.Println(\"sorry,has some error:\"<\/span>,err)\r\n        os.Exit<\/span>(-1<\/span>)\r\n        }\r\n    }\r\n    \r\n# \u6267\u884credis\u7684set\u548cget\u7684\u64cd\u4f5c<\/span>\r\n$ go run redis-conn.go\r\nxxbandy.github.io\r\n<\/code><\/pre>\n
redigo\u6a21\u5757\u7684\u8be6\u7ec6\u4f7f\u7528<\/h3>\n
\u8fde\u63a5<\/h4>\n
Conn<\/code>\u63a5\u53e3\u662fredis\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u6bd4\u8f83\u91cd\u8981\u7684\u63a5\u53e3\u3002\u5e94\u7528\u4e00\u822c\u901a\u8fc7\u8c03\u7528Dial\u3001DialWithTimeout\u3001NewConn<\/code>\u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u94fe\u63a5\u3002
\n\u6ce8\u610f\uff1a<\/code>\u5e94\u7528\u5fc5\u987b\u5728\u64cd\u4f5credis\u7ed3\u675f\u4e4b\u540e\u53bb\u8c03\u7528\u8be5\u8fde\u63a5\u7684Close<\/code>\u65b9\u6cd5\u6765\u5173\u95ed\u8fde\u63a5\uff0c\u4ee5\u9632\u6b62\u8d44\u6e90\u6d88\u8017\u4ee5\u53ca\u5176\u4ed6\u95ee\u9898\u3002<\/p>\n
Conn\u63a5\u53e3\u4e0b\u7684\u76f8\u5173\u65b9\u6cd5<\/strong><\/p>\n
type Conn interface<\/span> <\/span>{\r\n    \/\/ \u5173\u95ed\u94fe\u63a5<\/span>\r\n    Close() error\r\n\r\n    \/\/ \u5f53\u94fe\u63a5\u4e0d\u53ef\u7528\u65f6\u8fd4\u56de\u975e\u7a7a\u503c<\/span>\r\n    Err() error\r\n\r\n    \/\/Do\u65b9\u6cd5\u5411redis\u670d\u52a1\u7aef\u53d1\u9001\u547d\u4ee4\u5e76\u8fd4\u56de\u63a5\u6536\u5230\u54cd\u5e94<\/span>\r\n    Do<\/span>(commandName string, args ...interface<\/span>{}) (reply interface<\/span><\/span>{}, err error)\r\n\r\n    \/\/Send \u5c06\u76f8\u5173\u7684\u547d\u4ee4\u5199\u5165\u5ba2\u6237\u7aef\u7684buffer\u4e2d<\/span>\r\n    Send(commandName string, args ...interface<\/span>{}) error\r\n\r\n    \/\/ Flush \u5c06\u5ba2\u6237\u7aef\u7684\u8f93\u51fa\u7f13\u51b2\u5185\u5bb9\u5237\u65b0\u5230redis\u670d\u52a1\u5668\u7aef<\/span>\r\n    Flush() error\r\n\r\n    \/\/ Receive \u4eceredis\u670d\u52a1\u7aef\u63a5\u6536\u5355\u4e2a\u56de\u590d<\/span>\r\n    Receive() (reply interface<\/span><\/span>{}, err error)\r\n}\r\n<\/code><\/pre>\n
\u5e38\u7528\u7684\u521b\u5efaConn\u7684\u65b9\u5f0f<\/strong><\/p>\n
# \u4f7f\u7528Dial\u51fd\u6570<\/span>\r\n# func Dial(network, address string, options ...DialOption) (Conn, error)<\/span>\r\n\/*\u53ef\u9009\u7684\u53c2\u6570\r\nfunc DialConnectTimeout(d time.Duration) DialOption\r\nfunc DialDatabase(db int) DialOption\r\nfunc DialKeepAlive(d time.Duration) DialOption\r\nfunc DialNetDial(dial func(network, addr string) (net.Conn, error)) DialOption\r\nfunc DialPassword(password string) DialOption\r\nfunc DialReadTimeout(d time.Duration) DialOption\r\nfunc DialWriteTimeout(d time.Duration) DialOption\r\n*\/<\/span>\r\nc,err := redis.Dial(\"tcp\"<\/span>,\"localhost:32771\"<\/span>)\r\ndefer c.Close()\r\n\r\n\r\n\r\n# \u4f7f\u7528DialTimeout\u51fd\u6570(\u9ed8\u8ba4\u589e\u52a0\u4e86\u8fde\u63a5\u3001\u8bfb\u5199\u8d85\u65f6\u65f6\u95f4)<\/span>\r\n\/\/ func DialTimeout(network, address string, connectTimeout, readTimeout, writeTimeout time.Duration) (Conn, error)<\/span>\r\n\r\n\r\n# \u4f7f\u7528NewConn\u51fd\u6570(\u5c06\u4e00\u4e2a\u7f51\u7edc\u8fde\u63a5\u8f6c\u6362\u6210redis\u8fde\u63a5)<\/span>\r\n\/\/ func NewConn(netConn net.Conn, readTimeout, writeTimeout time.Duration) Conn<\/span>\r\n\r\n\r\n<\/code><\/pre>\n
redis\u547d\u4ee4\u7684\u6267\u884c<\/h4>\n
\u5728\u4e0a\u9762Conn<\/code>\u7684\u63a5\u53e3\u4e2d\u53ef\u4ee5\u770b\u5230\u6709\u4e00\u4e2aDo<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u6267\u884credis\u547d\u4ee4\u64cd\u4f5c\u3002<\/p>\n
Do\u65b9\u6cd5\u5b9a\u4e49<\/strong><\/p>\n
\/\/\u4f7f\u7528Conn\u7684Do\u65b9\u6cd5\u6765\u64cd\u4f5credis\u547d\u4ee4<\/span>\r\nDo<\/span>(commandName string, args ...interface<\/span>{}) (reply interface<\/span><\/span>{}, err error)\r\n\r\n\/\/\u793a\u4f8b<\/span>\r\nn, err := conn.Do<\/span>(\"APPEND\"<\/span>, \"key\"<\/span>, \"value\"<\/span>)\r\n\r\n<\/code><\/pre>\n
redis\u8fde\u63a5\u548c\u547d\u4ee4\u6267\u884c\u7684\u7b80\u5355\u793a\u4f8b<\/h4>\n
\u7b80\u5355\u793a\u4f8b\uff1a<\/p>\n
$ cat redis-conn.go\r\npackage main\r\nimport (\r\n    \"fmt\"<\/span>\r\n    \"os\"<\/span>\r\n    \"time\"<\/span>\r\n    redis \"github.com\/gomodule\/redigo\/redis\"<\/span>\r\n)\r\nfunc main() {\r\n    \/\/<\/span>\u4f7f\u7528redis\u5c01\u88c5\u7684Dial\u8fdb\u884ctcp\u8fde\u63a5.\u8bbe\u7f6e\u957f\u8fde\u63a5\u65f6\u95f4\u4e3a1<\/span>s,\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4\u4e3a5<\/span>s,\u8bfb\u5199\u8d85\u65f6\u5747\u4e3a1<\/span>s\uff0c\u5e76\u8bbe\u7f6e\u5bc6\u7801\u8fdb\u884c\u8fde\u63a5\r\n    c,err :<\/span>= redis.Dial(\"tcp\"<\/span>,\"localhost:32771\"<\/span>,redis.DialKeepAlive(1<\/span>*time.Second),redis.DialPassword(\"123qweasd\"<\/span>),redis.DialConnectTimeout(5<\/span>*time.Second),redis.DialReadTimeout(1<\/span>*time.Second),redis.DialWriteTimeout(1<\/span>*time.Second))\r\n    errCheck(err)\r\n\r\n    defer c.Close()\r\n    \r\n    \/\/\u4f7f\u7528redis\u7684string\u7c7b\u578b\u83b7\u53d6set\u7684k\/v<\/span>\u4fe1\u606f\r\n    r,getErr :<\/span>= redis.String(c.Do(\"get\"<\/span>,\"url\"<\/span>))\r\n    errCheck(getErr)\r\n    fmt.Println(r)\r\n\r\n}\r\n\r\nfunc errCheck(err error) {\r\n    if<\/span> err != nil<\/span> {\r\n        fmt.Println(\"sorry,has some error:\"<\/span>,err)\r\n        os.Exit(-1<\/span>)\r\n        }\r\n    }\r\n    \r\n$ go run redis-conn.go\r\nxxbandy.github.io\r\n\r\n# \u7531\u4e8eredis\u670d\u52a1\u5668\u8bbe\u7f6e\u4e86\u5bc6\u7801\uff0c\u5982\u679c\u5bc6\u7801\u9519\u8bef\u4f1a\u62a5\u5982\u4e0b\u5f02\u5e38<\/span>\r\n$ go run redis-conn.go\r\nsorry,has some error:<\/span> ERR invalid password\r\nexit status 255<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528Pipelining\u64cd\u4f5credis<\/h4>\n
\u6ce8\u610f:<\/code>\u5efa\u8bae\u4f7f\u7528redis\u81ea\u8eab\u5305\u542b\u7684\u547d\u4ee4\u8fdb\u884c\u6279\u91cf\u64cd\u4f5c\u800c\u4e0d\u662f\u4f7f\u7528pipelining\uff0c\u6bd4\u5982mset\u3001mget\u3001hmset\u3001hmget<\/code>\u7b49\u7b49\u3002\u539f\u5b50\u6027\u53ef\u80fd\u4f1a\u66f4\u597d\u4e00\u4e9b<\/p>\n
Conn<\/code>\u4f1a\u4f7f\u7528Send\u3001Flush\u3001Receive<\/code>\u6765\u652f\u6301pipeline\u64cd\u4f5c\u3002<\/p>\n
Send(commandName string, args ...interface<\/span>{}) error\r\nFlush() error\r\nReceive() (reply interface<\/span><\/span>{}, err error)\r\n<\/code><\/pre>\n
Send<\/code>\u4f1a\u5199\u5165\u547d\u4ee4\u5230\u8fde\u63a5\u7684\u8f93\u51fa\u7f13\u51b2\u533a\u91cc\u3002Flush<\/code>\u4f1a\u5c06\u8f93\u51fa\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\u5237\u65b0\u5230\u670d\u52a1\u7aef\u3002Receive<\/code>\u56de\u53bb\u8363\u670d\u52a1\u7aef\u8bfb\u53d6\u5355\u4e2a\u54cd\u5e94\u3002<\/p>\n
c.Send(\"SET\"<\/span>, \"foo\"<\/span>, \"bar\"<\/span>)\r\nc.Send(\"GET\"<\/span>, \"foo\"<\/span>)\r\nc.Flush()\r\nc.Receive()\r\nv, err = c.Receive()\r\n<\/code><\/pre>\n
\u5176\u5b9e\uff0c\u5728Do<\/code>\u65b9\u6cd5\u4e2d\u4f1a\u5305\u542bSend\/Flush\/Receive<\/code>\u7b49\u65b9\u6cd5\u3002<\/p>\n
\u4f7f\u7528Send<\/code>\u548cDo<\/code>\u65b9\u6cd5\u6765\u5b9e\u73b0pipeline\u3002<\/p>\n
c.Send(\"MULTI\"<\/span>)\r\nc.Send(\"INCR\"<\/span>, \"foo\"<\/span>)\r\nc.Send(\"INCR\"<\/span>, \"bar\"<\/span>)\r\nr, err := c.Do<\/span>(\"EXEC\"<\/span>)\r\nfmt.Println(r) \/\/[1,1]<\/span>\r\n<\/code><\/pre>\n
\u5e76\u53d1<\/h4>\n
\u4e00\u822c\u5e76\u53d1\u8bbf\u95eeredis\uff0c\u5efa\u8bae\u4f7f\u7528\u5b89\u5168\u7ebf\u7a0b\u6c60\u53bb\u83b7\u53d6\u8fde\u63a5\uff0c\u4ece\u4e00\u4e2agoroutine\u4e2d\u4f7f\u7528\u548c\u91ca\u653e\u4e00\u4e2a\u94fe\u63a5\u3002\u6b63\u5982\u524d\u9762\u63d0\u5230\u7684\uff0c\u4ece\u7ebf\u7a0b\u6c60\u4e2d\u83b7\u53d6\u7684\u8fde\u63a5\u4f1a\u6709\u5e76\u53d1\u9650\u5236\u3002<\/p>\n
\u53d1\u5e03\/\u8ba2\u9605\u6a21\u5f0f(Publish and Subscribe)<\/h4>\n
\u4f7f\u7528Send\/Flush\/Receive<\/code>\u65b9\u6cd5\u53bb\u5b9e\u73b0Pub\/Sub\u8ba2\u9605\u3002<\/p>\n
c.Send(\"SUBSCRIBE\"<\/span>,\"ANSIBLE-KEY\"<\/span>)\r\nc.Flush()\r\nfor<\/span> {\r\n    reply,err := c.Receive()\r\n    if<\/span> err != nil<\/span> {\r\n        return<\/span> err\r\n    }\r\n    \/\/process pushed message<\/span>\r\n}\r\n<\/code><\/pre>\n
PubSubConn<\/code>\u7c7b\u578b\u4f7f\u7528convenience<\/code>\u65b9\u6cd5\u5305\u88c5\u4e86\u4e00\u4e2aConn<\/code>\u6765\u5b9e\u73b0\u4e86\u8ba2\u9605\u3002Subscribe\/PSubscribe\/Unsubscribe\/PUnsubscribe<\/code>\u65b9\u6cd5\u4f1asend\u5e76\u4e14flush\u4e00\u4e2a\u8ba2\u9605\u7ba1\u7406\u547d\u4ee4\u3002\u63a5\u6536\u65b9\u6cd5\u4f1a\u5c06push\u7684\u6d88\u606f\u8f6c\u6362\u6210\u4e00\u4e2a\u53ef\u4ee5\u8fdb\u884cswitch<\/code>\u7684\u5408\u9002\u7c7b\u578b\u3002<\/p>\n
psc := redis.PubSubConn{Conn: c}\r\n\r\npsc.Subscribe(\"example\"<\/span>)\r\nfor<\/span> {\r\n    switch v := psc.Receive().(type<\/span>) {\r\n    case<\/span> redis.Message:\r\n        fmt.Printf(\"%s: message: %s\\n\"<\/span>, v.Channel, v.Data)\r\n    case<\/span> redis.Subscription:\r\n        fmt.Printf(\"%s: %s %d\\n\"<\/span>, v.Channel, v.Kind, v.Count)\r\n    case<\/span> error:\r\n        return<\/span> v\r\n    }\r\n}\r\n<\/code><\/pre>\n
Redigo\u64cd\u4f5credis\u7684\u51e0\u79cd\u573a\u666f\u793a\u4f8b<\/h3>\n
\u4f7f\u7528Args<\/code>\u63a5\u53e3\u6570\u7ec4\u64cd\u4f5c\u5904\u7406\u6279\u91cf\u64cd\u4f5c<\/h4>\n
\u76f8\u5173\u7684\u51fd\u6570\u548c\u65b9\u6cd5\uff1a<\/p>\n
\/\/func Values(reply interface{}, err error) ([]interface{}, error)<\/span>\r\n\/\/type Args []interface{}<\/span>\r\n\r\n# \u7c7b\u4f3c\u4e8ehgetall\u548cconfig get\u7684\u8f93\u51fa\u683c\u5f0f<\/span>\r\n\/\/func StringMap(result interface{}, err error) (map[string]string, error)<\/span>\r\n\r\n# \u7c7b\u4f3c\u4e8ehmget \u7c7b\u578b<\/span>\r\n\/\/func Strings(reply interface{}, err error) ([]string, error)<\/span>\r\n\r\n# \u4ecesrc\u4e2d\u626b\u63cfk\/v\u5230\u4e00\u4e2a\u7ed3\u6784\u4f53\u4e2d\u3002\u4e00\u822c\u4f7f\u7528\u8f83\u591a\u7684\u5c31\u662fhgetall\u548cconfig get\u547d\u4ee4<\/span>\r\n\/\/func ScanStruct(src []interface{}, dest interface{}) error<\/span>\r\n<\/code><\/pre>\n
hmset<\/code>\u548chgetall<\/code>\u547d\u4ee4\u7684\u4f7f\u7528\uff1a<\/p>\n
$  cat redis-hash.go\r\n\/**\r\n * @File<\/span> Name: redis-hash.go\r\n * @Author<\/span>: xxbandy @http<\/span>:\/\/xxbandy.github.io\r\n * @Email<\/span>:\r\n * @Create<\/span> Date: 2018-04-04 08:04:55\r\n * @Last<\/span> Modified: 2018-04-08 22:04:47\r\n * @Description<\/span>:\r\n *\/<\/span>\r\npackage main\r\nimport (\r\n    \"fmt\"<\/span>\r\n    \"time\"<\/span>\r\n    \"os\"<\/span>\r\n    \"github.com\/gomodule\/redigo\/redis\"<\/span>\r\n)\r\n\/\/\u6784\u9020\u4e00\u4e2a\u94fe\u63a5\u51fd\u6570\uff0c\u5982\u679c\u6ca1\u6709\u5bc6\u7801\uff0cpasswd\u4e3a\u7a7a\u5b57\u7b26\u4e32<\/span>\r\nfunc redisConn(ip,port,passwd string) (redis.Conn, error) {\r\n    c,err := redis.Dial(\"tcp\"<\/span>,\r\n        ip+\":\"<\/span>+port,\r\n        redis.DialConnectTimeout(5<\/span>*time.Second),\r\n        redis.DialReadTimeout(1<\/span>*time.Second),\r\n        redis.DialWriteTimeout(1<\/span>*time.Second),\r\n        redis.DialPassword(passwd),\r\n        redis.DialKeepAlive(1<\/span>*time.Second),\r\n        )\r\n    return<\/span> c,err\r\n}\r\n\r\n\/\/\u6784\u9020\u4e00\u4e2a\u9519\u8bef\u68c0\u67e5\u51fd\u6570<\/span>\r\nfunc errCheck(tp string,err error) {\r\n    if<\/span> err != nil {\r\n        fmt.Printf(\"sorry,has some error for %s.\\r\\n\"<\/span>,tp,err)\r\n        os.Exit<\/span>(-1<\/span>)\r\n    }\r\n}\r\n\r\n\/\/\u6784\u9020\u5b9e\u9645\u573a\u666f\u7684hash\u7ed3\u6784\u4f53<\/span>\r\nvar<\/span> p1,p2 struct {\r\n    Description  string `redis:\"description\"<\/span>`\r\n    Url          string `redis:\"url\"<\/span>`\r\n    Author       string `redis:\"author\"<\/span>`\r\n}\r\n\r\n\r\n\r\n\/\/\u4e3b\u51fd\u6570<\/span>\r\nfunc main() {\r\n    c,cErr := redisConn(\"localhost\"<\/span>,\"32771\"<\/span>,\"123qweasd\"<\/span>)\r\n    errCheck(\"Conn\"<\/span>,cErr)\r\n\r\n    defer c.Close()\r\n    p1.Description = \"my blog\"<\/span>\r\n    p1.Url = \"http:\/\/xxbandy.github.io\"<\/span>\r\n    p1.Author = \"bgbiao\"<\/span>\r\n\r\n    _,hmsetErr := c.Do<\/span>(\"hmset\"<\/span>,redis.Args{}.Add(\"hao123\"<\/span>).AddFlat(&p1)...)\r\n    errCheck(\"hmset\"<\/span>,hmsetErr)\r\n\r\n    m := map[string]string{\r\n        \"description\"<\/span>:    \"oschina\"<\/span>,\r\n        \"url\"<\/span>:            \"http:\/\/my.oschina.net\/myblog\"<\/span>,\r\n        \"author\"<\/span>:         \"xxbandy\"<\/span>,\r\n    }\r\n\r\n    _,hmset1Err := c.Do<\/span>(\"hmset\"<\/span>,redis.Args{}.Add(\"hao\"<\/span>).AddFlat(m)...)\r\n    errCheck(\"hmset1\"<\/span>,hmset1Err)\r\n\r\n    for<\/span> _,key := range []string{\"hao123\"<\/span>,\"hao\"<\/span>} {\r\n        v, err := redis.Values(c.Do<\/span>(\"hgetall\"<\/span>,key))\r\n        errCheck(\"hmgetV\"<\/span>,err)\r\n        \/\/\u7b49\u540c\u4e8ehgetall\u7684\u8f93\u51fa\u7c7b\u578b\uff0c\u8f93\u51fa\u5b57\u7b26\u4e32\u4e3ak\/v\u7c7b\u578b<\/span>\r\n        \/\/hashV,_ := redis.StringMap(c.Do(\"hgetall\",key))<\/span>\r\n        \/\/fmt.Println(hashV)<\/span>\r\n        \/\/\u7b49\u540c\u4e8ehmget \u7684\u8f93\u51fa\u7c7b\u578b\uff0c\u8f93\u51fa\u5b57\u7b26\u4e32\u5230\u4e00\u4e2a\u5b57\u7b26\u4e32\u5217\u8868<\/span>\r\n        hashV2,_ := redis.Strings(c.Do<\/span>(\"hmget\"<\/span>,key,\"description\"<\/span>,\"url\"<\/span>,\"author\"<\/span>))\r\n        for<\/span> _,hashv := range hashV2 {\r\n                fmt.Println(hashv)\r\n            }\r\n        if<\/span> err := redis.ScanStruct(v,&p2);err != nil {\r\n            fmt.Println(err)\r\n            return<\/span>\r\n        }\r\n    fmt.Printf(\"%+v\\n\"<\/span>,p2)\r\n\r\n\r\n    }\r\n\r\n}\r\n$ tcp-http go run redis-hash.go\r\n{Description:my blog Url:http:\/\/xxbandy.github.io Author:bgbiao}<\/span>\r\n{Description:oschina Url:http:\/\/my.oschina.net\/myblog Author:xxbandy}<\/span>\r\n\r\nbash-4.1<\/span># redis-cli -a 123qweasd hgetall hao<\/span>\r\n1<\/span>) \"description\"<\/span>\r\n2<\/span>) \"oschina\"<\/span>\r\n3<\/span>) \"url\"<\/span>\r\n4<\/span>) \"http:\/\/my.oschina.net\/myblog\"<\/span>\r\n5<\/span>) \"author\"<\/span>\r\n6<\/span>) \"xxbandy\"<\/span>\r\nbash-4.1<\/span># redis-cli -a 123qweasd hgetall hao123<\/span>\r\n1<\/span>) \"description\"<\/span>\r\n2<\/span>) \"my blog\"<\/span>\r\n3<\/span>) \"url\"<\/span>\r\n4<\/span>) \"http:\/\/xxbandy.github.io\"<\/span>\r\n5<\/span>) \"author\"<\/span>\r\n6<\/span>) \"bgbiao\"<\/span>\r\n<\/code><\/pre>\n
hset<\/code>\u548chget\u7684<\/code>\u4f7f\u7528\uff1a<\/p>\n
\/\/ core functions<\/span>\r\n_,err := c.Do(\"hset\"<\/span>,\"books\"<\/span>,\"name\"<\/span>,\"golang\"<\/span>)\r\nif<\/span> r,err := redis.String(\"hget\"<\/span>,\"books\"<\/span>,\"name\"<\/span>);err == nil<\/span> {\r\n    fmt.Println(\"book name:\"<\/span>,r)\r\n}\r\n<\/code><\/pre>\n
\u4f7f\u7528String\u548cInt<\/code>\u83b7\u53d6\u5b57\u7b26\u4e32\u7c7b\u578b\u7684\u8f93\u51fa<\/h4>\n
\u4e5f\u5c31\u662fset\u3001get\u3001mset\u3001mget<\/code>\u4e4b\u7c7b\u7684\u547d\u4ee4\u3002
\nstring\u76f8\u5173\u547d\u4ee4<\/a><\/p>\n
\u6ce8\u610f:\u5f53\u83b7\u53d6\u6570\u5b57\u7c7b\u578b\u7684key\u65f6\u9700\u8981\u4f7f\u7528redis.Int()\u83b7\u53d6\u6570\u5b57\u7c7b\u578b\u7684\u8f93\u51fa\u7ed3\u679c<\/code><\/p>\n
$ cat redis-string.go\r\n....\r\nfunc main() {\r\n    c,connErr :<\/span>= redisConn(\"localhost\"<\/span>,\"32771\"<\/span>,\"123qweasd\"<\/span>)\r\n    errCheck(\"connErr\"<\/span>,connErr)\r\n\r\n    getV,_<\/span> :<\/span>= redis.String(c.Do(\"get\"<\/span>,\"name\"<\/span>))\r\n    getV2,_<\/span> :<\/span>= redis.Int(c.Do(\"get\"<\/span>,\"id\"<\/span>))\r\n    fmt.Println(getV,getV2)\r\n}\r\n$ go run redis-string.go\r\nxxb 1214<\/span>\r\n\r\n127.0.0.1:6379><\/span> mget name id\r\n1<\/span>) \"xxb\"<\/span>\r\n2<\/span>) \"1214\"<\/span>\r\n\r\n<\/code><\/pre>\n
mset\u3001mget\u3001expire<\/code>\u4e4b\u7c7b\u7684\u4f7f\u7528\uff1a<\/p>\n
\/\/ core functions<\/span>\r\n_,err = c.Do<\/span>(\"mset\"<\/span>,\"id\"<\/span>,100<\/span>,\"fn\"<\/span>,200<\/span>)\r\n\r\n_,expireErr = c.Do<\/span>(\"expire\"<\/span>,\"id\"<\/span>,10<\/span>)\r\n\r\nif<\/span> r,err := redis.Ints(c.Do<\/span>(\"mget\"<\/span>,\"id\"<\/span>,\"fn\"<\/span>)); err == nil {\r\n    for<\/span> _,v := range {\r\n        fmt.Println(\"value:\"<\/span>,v)\r\n    }\r\n}\r\n\r\n\r\n<\/code><\/pre>\n
lpush\u3001lpop\u3001rpush\u3001rpop<\/code>\u7b49\u76f8\u5173\u547d\u4ee4\u64cd\u4f5c:<\/p>\n
\/\/ core functions<\/span>\r\n_,err = c.Do<\/span>(\"lpush\"<\/span>,\"updateid\"<\/span>,\"0407\"<\/span>,\"0408\"<\/span>,\"0409\"<\/span>)\r\n\r\nr,err \uff1a= redis.String(c.Do<\/span>(\"lpop\"<\/span>,\"updateid\"<\/span>))\r\n<\/code><\/pre>\n
\u4f7f\u7528redis<\/code>\u7684\u5b89\u5168\u94fe\u8fde\u63a5\u6c60<\/h4>\n
\u4f7f\u7528\u8fde\u63a5\u6c60\u53ef\u4ee5\u9ad8\u6548\u7684\u7ba1\u7406redis\u7684\u8fde\u63a5\uff0c\u5e76\u53ef\u4ee5\u65b9\u4fbf\u5730\u63a7\u5236redis\u7684\u5e76\u53d1\u6027\u80fd\u3002<\/p>\n
\u76f8\u5173\u7684\u7ed3\u6784\u4f53\u548c\u65b9\u6cd5\uff1a<\/p>\n
type Pool struct<\/span> {\r\n    \/\/\u521b\u5efa\u4e00\u4e2atcp\u94fe\u63a5\u7684\u533f\u540d\u51fd\u6570<\/span>\r\n    Dial func() (Conn, error)\r\n    \/\/\u53ef\u9009\u7684\u51fd\u6570\uff0c\u7528\u6765\u5bf9\u4e4b\u524d\u4f7f\u7528\u8fc7\u7684\u7a7a\u95f2\u94fe\u63a5\u8fdb\u884c\u5b89\u5168\u68c0\u67e5<\/span>\r\n    TestOnBorrow func(c Conn, t time.Time) error\r\n    \/\/\u6700\u5927\u53ef\u7528\u94fe\u63a5\u6570<\/span>\r\n    MaxIdle int<\/span>\r\n    \/\/\u5728\u7ed9\u5b9a\u7684\u65f6\u95f4\uff0c\u6700\u5927\u53ef\u5206\u914d\u7684\u8fde\u63a5\u6570\u3002\u4e3a0\u5219\u4e0d\u9650\u5236<\/span>\r\n    MaxActive int<\/span>\r\n    \/\/\u7a7a\u95f2\u94fe\u63a5\u7684\u5173\u95ed\u65f6\u95f4\uff0c\u5982\u679c\u4e3a\u7a7a\uff0c\u7a7a\u95f2\u94fe\u63a5\u4e0d\u4f1a\u88ab\u5173\u95ed<\/span>\r\n    IdleTimeout time.Duration\r\n    \/\/\u5982\u679cWait\u4e3atrue\u5e76\u4e14\u8fdb\u884cMaxActive\u9650\u5236\u4e86\uff0cGet()\u5c06\u4f1a\u7b49\u5f85\u94fe\u63a5\u88ab\u8fd4\u56de<\/span>\r\n    Wait bool<\/span>\r\n    \/\/\u5173\u95ed\u8001\u94fe\u63a5\u7684\u65f6\u95f4\u533a\u95f4\u3002\u5982\u679c\u4e3a\u7a7a\u5219\u4e0d\u4f1a\u5728\u751f\u547d\u5468\u671f\u5185\u5173\u95ed\u94fe\u63a5<\/span>\r\n    MaxConnLifetime time.Duration\r\n}\r\n\r\n\/\/\u521b\u5efa\u4e00\u4e2aPool\u7ed3\u6784\u4f53<\/span>\r\nfunc NewPool(newFn func() (Conn, error), maxIdle int<\/span>) *Pool\r\n\r\n\/\/ \u83b7\u53d6pool\u7684\u8fde\u63a5\u6570\uff0c\u5305\u542b\u7a7a\u95f2\u94fe\u63a5\u548c\u4f7f\u7528\u8fde\u63a5 <\/span>\r\nfunc (p *Pool) ActiveCount() int<\/span>\r\n\r\n\r\n\/\/\u5173\u95ed\u5e76\u91ca\u653epool\u4e2d\u7684\u8d44\u6e90<\/span>\r\nfunc (p *Pool) Close() error\r\n\r\n\/\/\u4ecepool\u4e2d\u83b7\u53d6\u4e00\u4e2a\u8fde\u63a5<\/span>\r\nfunc (p *Pool) Get() Conn\r\n\r\n\/\/ \u83b7\u53d6\u7a7a\u95f2\u94fe\u63a5\u6570<\/span>\r\nfunc (p *Pool) IdleCount() int<\/span>\r\n\r\n\/\/ \u83b7\u53d6\u8fde\u63a5\u6c60\u7684\u72b6\u6001\u4fe1\u606f<\/span>\r\nfunc (p *Pool) Stats() PoolStats\r\ntype PoolStats struct<\/span> {\r\n    ActiveCount int<\/span>\r\n    IdleCount   int<\/span>\r\n}\r\n\r\n\r\n\r\n<\/code><\/pre>\n
\u793a\u4f8b:<\/p>\n
$ cat redis-pool.go\r\npackage main\r\nimport<\/span> (\r\n    \"fmt\"<\/span>\r\n    \"time\"<\/span>\r\n    \"os\"<\/span>\r\n    \"github.com\/gomodule\/redigo\/redis\"<\/span>\r\n)<\/span>\r\n\/\/\u6784\u9020\u4e00\u4e2a\u94fe\u63a5\u51fd\u6570\uff0c\u5982\u679c\u6ca1\u6709\u5bc6\u7801\uff0cpasswd\u4e3a\u7a7a\u5b57\u7b26\u4e32<\/span>\r\nfunc redisConn<\/span>(ip,port,passwd string<\/span>)<\/span> (redis.Conn, error)<\/span> <\/span>{\r\n    c,err := redis.Dial(\"tcp\"<\/span>,\r\n        ip+\":\"<\/span>+port,\r\n        redis.DialConnectTimeout(5<\/span>*time.Second),\r\n        redis.DialReadTimeout(1<\/span>*time.Second),\r\n        redis.DialWriteTimeout(1<\/span>*time.Second),\r\n        redis.DialPassword(passwd),\r\n        redis.DialKeepAlive(1<\/span>*time.Second),\r\n        )\r\n    return<\/span> c,err\r\n}\r\n\r\n\/\/\u6784\u9020\u4e00\u4e2a\u9519\u8bef\u68c0\u67e5\u51fd\u6570<\/span>\r\nfunc errCheck(tp string<\/span>,err error) {\r\n    if<\/span> err != nil {\r\n        fmt.Printf(\"sorry,has some error for %s.\\r\\n\"<\/span>,tp,err)\r\n        os.Exit(-1<\/span>)\r\n    }\r\n}\r\n\r\n\/\/\u6784\u9020\u4e00\u4e2a\u8fde\u63a5\u6c60<\/span>\r\n\/\/url\u4e3a\u5305\u88c5\u4e86redis\u7684\u8fde\u63a5\u53c2\u6570ip,port,passwd<\/span>\r\nfunc newPool(ip,port,passwd string<\/span>) *redis.Pool {\r\n    return<\/span> &redis.Pool{\r\n        MaxIdle:            5<\/span>,    \/\/\u5b9a\u4e49redis\u8fde\u63a5\u6c60\u4e2d\u6700\u5927\u7684\u7a7a\u95f2\u94fe\u63a5\u4e3a3<\/span>\r\n        MaxActive:          18<\/span>,    \/\/\u5728\u7ed9\u5b9a\u65f6\u95f4\u5df2\u5206\u914d\u7684\u6700\u5927\u8fde\u63a5\u6570(\u9650\u5236\u5e76\u53d1\u6570)<\/span>\r\n        IdleTimeout:        240<\/span> * time.Second,\r\n        MaxConnLifetime:    300<\/span> * time.Second,\r\n        Dial:               func() (redis.Conn,error) { return<\/span> redisConn(ip,port,passwd) },\r\n    }\r\n}\r\n\r\n\r\nfunc main() {\r\n    \/\/\u4f7f\u7528newPool\u6784\u5efa\u4e00\u4e2aredis\u8fde\u63a5\u6c60<\/span>\r\n    pool := newPool(\"localhost\"<\/span>,\"32771\"<\/span>,\"123qweasd\"<\/span>)\r\n    defer pool.Close()\r\n    for<\/span> i := 0<\/span>;i <= 4<\/span>;i++ {\r\n      go func<\/span>()<\/span> <\/span>{\r\n        \/\/\u4ecepool\u91cc\u9762\u83b7\u53d6\u4e00\u4e2a\u53ef\u7528\u7684redis\u8fde\u63a5<\/span>\r\n        c := pool.Get()\r\n        defer c.Close()\r\n        \/\/mset mget<\/span>\r\n        fmt.Printf(\"ActiveCount:%d IdleCount:%d\\r\\n\"<\/span>,pool.Stats().ActiveCount,pool.Stats().IdleCount)\r\n        _,setErr := c.Do(\"mset\"<\/span>,\"name\"<\/span>,\"biaoge\"<\/span>,\"url\"<\/span>,\"http:\/\/xxbandy.github.io\"<\/span>)\r\n        errCheck(\"setErr\"<\/span>,setErr)\r\n        if<\/span> r,mgetErr := redis.Strings(c.Do(\"mget\"<\/span>,\"name\"<\/span>,\"url\"<\/span>)); mgetErr == nil {\r\n            for<\/span> _,v := range r {\r\n                fmt.Println(\"mget \"<\/span>,v)\r\n            }\r\n        }\r\n      }()\r\n    }\r\n\r\n    time.Sleep(1<\/span>*time.Second)\r\n}\r\n\r\n# \u4f7f\u7528\u8fde\u63a5\u6c60\u8fdb\u884c\u83b7\u53d6\u8fde\u63a5\u5e76\u5904\u7406redis\u64cd\u4f5c\r\n$ go run redis-pool.go\r\nActiveCount:5<\/span> IdleCount:0<\/span>\r\nActiveCount:5<\/span> IdleCount:0<\/span>\r\nActiveCount:5<\/span> IdleCount:0<\/span>\r\nActiveCount:5<\/span> IdleCount:0<\/span>\r\nActiveCount:5<\/span> IdleCount:0<\/span>\r\nmget  biaoge\r\nmget  http:\/\/xxbandy.github.io<\/span>\r\nmget  biaoge\r\nmget  http:\/\/xxbandy.github.io<\/span>\r\nmget  biaoge\r\nmget  http:\/\/xxbandy.github.io<\/span>\r\nmget  biaoge\r\nmget  http:\/\/xxbandy.github.io<\/span>\r\nmget  biaoge\r\nmget  http:\/\/xxbandy.github.io<\/span>\r\n<\/code><\/pre>\n
\u4f7f\u7528redis<\/code>\u7684\u53d1\u5e03\u8ba2\u9605\u6a21\u5f0f<\/h4>\n
\u76f8\u5173\u7684\u7ed3\u6784\u4f53\u4ee5\u53ca\u65b9\u6cd5\uff1a<\/p>\n
\/\/PubSubConn\u7ed3\u6784\u4f53<\/span>\r\ntype PubSubConn struct<\/span> {<\/span>\r\n    Conn    Conn\r\n}\r\n\r\n\/\/\u4f7f\u7528redis\u94fe\u63a5\u521d\u59cb\u5316\u4e00\u4e2apubsub\u94fe\u63a5<\/span>\r\npsc := redis.PubSubConn{Conn:redis.conn}\r\n\r\n\/\/pubsub\u94fe\u63a5\u7684\u76f8\u5173\u65b9\u6cd5<\/span>\r\n\/\/\u5173\u95edpubsub\u94fe\u63a5<\/span>\r\nfunc (c PubSubConn) Close() error\r\n\/\/\u6279\u91cf\u8ba2\u9605(\u6309\u6a21\u5f0f\u8ba2\u9605)<\/span>\r\nfunc (c PubSubConn) PSubscribe(channel ...interface{}) error\r\n\r\n\/\/\u53d6\u6d88\u8ba2\u9605<\/span>\r\nfunc (c PubSubConn) PUnsubscribe(channel ...interface{}) error\r\n\r\n\/\/ Receive\u8fd4\u56de\u6d88\u8d39\u7684\u4fe1\u606f\u4f5c\u4e3aSubscription, Message, Pong or error.\u8fd4\u56de\u503c\u5efa\u8bae\u76f4\u63a5\u5728switch\u4e2d\u4f7f\u7528<\/span>\r\nfunc (c PubSubConn) Receive() interface{}\r\ntype Subscription struct {\r\n    Kind    string<\/span>  \/\/\u8ba2\u9605,\u53d6\u6d88\u8ba2\u9605<\/span>\r\n    Channel string<\/span>  \/\/\u88ab\u6539\u53d8\u7684channel<\/span>\r\n    \/\/\u8ba2\u9605\u7684\u94fe\u63a5\u6570\u91cf<\/span>\r\n    Count   int<\/span>\r\n}\r\ntype Message struct {\r\n    \/\/ \u521d\u59cb\u7684channel<\/span>\r\n    Channel string<\/span>\r\n    \/\/ \u5339\u914d\u7684\u6a21\u5f0f<\/span>\r\n    Pattern string<\/span>\r\n    \/\/ channel\u7684\u6d88\u606f\u4f53<\/span>\r\n    Data []byte\r\n}\r\ntype\r\n\r\n\r\n\r\n\/\/\u8ba2\u9605\u548c\u53d6\u6d88\u8ba2\u9605<\/span>\r\nfunc (c PubSubConn) Subscribe(channel ...interface{}) error\r\nfunc (c PubSubConn) Unsubscribe(channel ...interface{}) error\r\n\r\n\r\n<\/code><\/pre>\n
\u6d4b\u8bd5\u793a\u4f8b\uff1a<\/p>\n
\r\npackage main\r\n\r\nimport (\r\n    \"context\"<\/span>\r\n    \"fmt\"<\/span>\r\n    \"time\"<\/span>\r\n\r\n    \"github.com\/gomodule\/redigo\/redis\"<\/span>\r\n)\r\n\r\n\/\/<\/span>\r\nfunc listenPubSubChannels(ctx context.Context, redisServerAddr string,\r\n    onStart func() error,\r\n    onMessage func(channel string, data []byte) error,\r\n    channels ...string) error {\r\n\r\n    \/\/\u4e00\u5206\u949f\u7684\u5fc3\u8df3\u68c0\u6d4b<\/span>\r\n    const<\/span> healthCheckPeriod = time.Minute\r\n\r\n    \/\/\u6784\u5efa\u4e00\u4e2aredis\u94fe\u63a5<\/span>\r\n    c, err := redis.Dial(\"tcp\"<\/span>, redisServerAddr,\r\n        redis.DialReadTimeout(healthCheckPeriod+10<\/span>*time.Second),\r\n        redis.DialWriteTimeout(10<\/span>*time.Second))\r\n    if<\/span> err != nil<\/span> {\r\n        return<\/span> err\r\n    }\r\n    defer c.Close()\r\n\r\n    \/\/\u6784\u5efa\u4e00\u4e2apubsub\u94fe\u63a5<\/span>\r\n    psc := redis.PubSubConn{Conn: c}\r\n\r\n    \/\/\u8ba2\u9605channels<\/span>\r\n    if<\/span> err := psc.Subscribe(redis.Args{}.AddFlat(channels)...); err != nil<\/span> {\r\n        return<\/span> err\r\n    }\r\n    \/\/\u6784\u9020chan\u6765\u68c0\u6d4b\u901a\u77e5\u72b6\u6001<\/span>\r\n    done := make(chan error, 1<\/span>)\r\n\r\n    \/\/\u542f\u52a8\u4e00\u4e2agoroutine\u6765\u63a5\u53d7\u6765\u81easerver\u7aef\u7684\u901a\u77e5<\/span>\r\n    go func() {\r\n        for<\/span> {\r\n            \/\/\u4f7f\u7528interface{}.(type) \u6765\u83b7\u53d6\u5bf9\u5e94\u7684\u7c7b\u578b\uff0c\u5e76\u501f\u52a9switch\u548ccase\u8fdb\u884cinterface{}\u7684\u7c7b\u578b\u5224\u65ad<\/span>\r\n            switch<\/span> n := psc.Receive().(type) {\r\n            case<\/span> error:\r\n                done <- n\r\n                return<\/span>\r\n            case<\/span> redis.Message:\r\n                if<\/span> err := onMessage(n.Channel, n.Data); err != nil<\/span> {\r\n                    done <- err\r\n                    return<\/span>\r\n                }\r\n            case<\/span> redis.Subscription:\r\n                switch<\/span> n.Count {\r\n                case<\/span> len(channels):\r\n                    \/\/ Notify application when all channels are subscribed.<\/span>\r\n                    if<\/span> err := onStart(); err != nil<\/span> {\r\n                        done <- err\r\n                        return<\/span>\r\n                    }\r\n                case<\/span> 0<\/span>:\r\n                    \/\/ Return from the goroutine when all channels are unsubscribed.<\/span>\r\n                    done <- nil<\/span>\r\n                    return<\/span>\r\n                }\r\n            }\r\n        }\r\n    }()\r\n\r\n    ticker := time.NewTicker(healthCheckPeriod)\r\n    defer ticker.Stop()\r\nloop:\r\n    for<\/span> err == nil<\/span> {\r\n        select {\r\n        case<\/span> <-ticker.C:\r\n            \/\/ Send ping to test health of connection and server. If<\/span>\r\n            \/\/ corresponding pong is not received, then receive on the<\/span>\r\n            \/\/ connection will timeout and the receive goroutine will exit.<\/span>\r\n            if<\/span> err = psc.Ping(\"\"<\/span>); err != nil<\/span> {\r\n                break<\/span> loop\r\n            }\r\n        case<\/span> <-ctx.Done():\r\n            break<\/span> loop\r\n        case<\/span> err := <-done:\r\n            \/\/ Return error from the receive goroutine.<\/span>\r\n            return<\/span> err\r\n        }\r\n    }\r\n\r\n    \/\/ Signal the receiving goroutine to exit by unsubscribing from all channels.<\/span>\r\n    psc.Unsubscribe()\r\n\r\n    \/\/ Wait for goroutine to complete.<\/span>\r\n    return<\/span> <-done\r\n}\r\n\r\nfunc publish(redisServerAddr string) {\r\n    c, err := redis.Dial(\"tcp\"<\/span>,redisServerAddr)\r\n    if<\/span> err != nil<\/span> {\r\n        fmt.Println(err)\r\n        return<\/span>\r\n    }\r\n    defer c.Close()\r\n\r\n    c.Do(\"PUBLISH\"<\/span>, \"c1\"<\/span>, \"hello\"<\/span>)\r\n}\r\n\r\n\/\/ This example shows how receive pubsub notifications with cancelation and<\/span>\r\n\/\/ health checks.<\/span>\r\nfunc main() {\r\n    redisServerAddr := \"localhost:32771\"<\/span>\r\n\r\n    ctx, cancel := context.WithCancel(context.Background())\r\n\r\n    \/\/ctx\u548cstart callback\u5f88\u597d\u7684\u89e3\u51b3\u4e86\u4e22\u5931\u7684\u6d88\u606f\u7684\u586b\u5145(\u4f7f\u7528goroutine\u6765\u5360\u4f4fmessage\u7c7b\u578b\u7684\u6d88\u606f)<\/span>\r\n    listenErr := listenPubSubChannels(ctx,\r\n        redisServerAddr,\r\n        func() error {\r\n            \/\/ The start callback is a good place to backfill missed<\/span>\r\n            \/\/ notifications. For the purpose of this example, a goroutine is<\/span>\r\n            \/\/ started to send notifications.<\/span>\r\n            go publish(redisServerAddr)\r\n            return<\/span> nil<\/span>\r\n        },\r\n        func(channel string, message []byte) error {\r\n            fmt.Printf(\"channel: %s, message: %s\\n\"<\/span>, channel, message)\r\n\r\n            \/\/ For the purpose of this example, cancel the listener's context<\/span>\r\n            \/\/ after receiving last message sent by publish().<\/span>\r\n            if<\/span> string(message) == \"goodbye\"<\/span> {\r\n                cancel()\r\n            }\r\n            return<\/span> nil<\/span>\r\n        },\r\n        \"ansible-key\"<\/span>)\r\n\r\n    if<\/span> listenErr != nil<\/span> {\r\n        fmt.Println(listenErr)\r\n        return<\/span>\r\n    }\r\n\r\n}<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
\u539f\u5e16\u5730\u5740 \u76f8\u5173\u6a21\u5757\u4ee5\u53ca\u5b89\u88c5\u65b9\u5f0f redi<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[122],"class_list":["post-3166","post","type-post","status-publish","format-standard","hentry","tag-06-godocker"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/3166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=3166"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/3166\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=3166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=3166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=3166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}