前沿:

        这两天试着用golang做一些高性能的api,不想把压力到聚合在平台的接口上。平台因为要做很多耗时间的操作,uwsgi下会出现少许错误,找了一圈不知道如何解决该问题。 暂时先绕道而行,先拿简单的接口来做测试,慢慢的把复杂的操作也迁移到golang上。

          话说以前高性能的接口,我用的最多的方案还是nginx lua的组合,超强,大家可以看看我以前写的nginx lua的文章,各方面没得说。只是这段时间正在看golang 的,就试着用golang实现redis的api,先来个简单的试试手。


里面引用的是golang自带的http模块,redis是自己down的。

golang redis的配置方法:

cd $GOPATH/src
git clone git://github.com/alphazero/Go-Redis.git redis
cd redis
go install


先简单说下,golang对于redis的操作方法:

//xiaorui.cc
package main
import (
    "os";
    "bufio";
    "log";
    "fmt";
    "redis";
)
/*
    hello world, redis style.
*/
func main () {
    // create the client.  Here we are using a synchronous client.
    // Using the default ConnectionSpec, we are specifying the client to connect
    // to db 13 (e.g. SELECT 13), and a password of go-redis (e.g. AUTH go-redis)
    spec := redis.DefaultSpec().Db(13).Password("go-redis");
    client, e := redis.NewSynchClientWithSpec (spec);
    if e != nil { log.Println ("failed to create the client", e); return }
    key := "examples/hello/user.name";
    value, e := client.Get(key);
    if e!= nil { log.Println ("error on Get", e); return }
    if value == nil {
        fmt.Printf("\nHello, don't believe we've met before!\nYour name? ");
        reader:= bufio.NewReader(os.Stdin);
        user, _ := reader.ReadString(byte('\n'));
        if len(user) > 1 {
            user = user[0:len(user)-1];
            value = []byte(user);
            client.Set(key, value);
        } else {
            fmt.Printf ("vafanculo!\n");
            return;
        }
    }
    fmt.Printf ("Hey, ciao %s!\n", fmt.Sprintf("%s", value));
}


我写的实例,大家看懂了后,完全可以做更多的扩展。


其实golang自带的http很有mvc的感觉,三者做了一些分离,很像python里面的web.py tornado。。。


测试结果:

服务端的启动

使用golang的http模块构建redis读写查api_第1张图片

客户端的测试

使用golang的http模块构建redis读写查api_第2张图片


原文:http://rfyiamcool.blog.51cto.com/1030776/1380754


//xiaorui.cc
package main
import(
    "fmt"
    "net/http"
    "io/ioutil"
    "log"
    "time"
    "redis"
)
//xiaorui.cc
const AddForm = `

Name: Age:
` const setform = `
key: value:
` func Handler( w http.ResponseWriter,r *http.Request ){ path := r.URL.Path[1:] if path == "favicon.ico" { http.NotFound(w, r) return } if path == ""{ path = "index.html" } contents,err:= ioutil.ReadFile( path ) if err !=nil{ fmt.Fprintf( w,"404" ) return } fmt.Fprintf( w,"%s\n",contents ) } func Add( w http.ResponseWriter,r *http.Request ){ name := r.FormValue("name") age := r.FormValue("age") if name == "" || age == "" { fmt.Fprint(w, AddForm) return } fmt.Fprintf(w, "Save : Your name is %s , You age is %s",name,age) } func redisset( w http.ResponseWriter,r *http.Request ){ key := r.FormValue("key") value := r.FormValue("value") if key == "" || value == "" { fmt.Fprint(w, setform) return } spec := redis.DefaultSpec().Db(0).Password(""); client, e := redis.NewSynchClientWithSpec (spec); if e != nil { log.Println ("服务器连接有异常", e); return } inva := []byte(value) client.Set(key, inva); fmt.Fprintf(w, "哥们,你输入的key %s 和value %s 已经插入到redis里面了",key,key) } func redisget( w http.ResponseWriter,r *http.Request ){ key := r.FormValue("key") if key == "" { fmt.Fprint(w, setform) return } spec := redis.DefaultSpec().Db(0).Password(""); client, e := redis.NewSynchClientWithSpec (spec); if e != nil { log.Println ("服务器连接有异常", e); return } value, e := client.Get(key); fmt.Fprintf(w, "哥们,你要查询的key %s 和value %s ",key,value) } func valueget(w http.ResponseWriter, r *http.Request) { params := r.URL.Query() user := params.Get("user") fmt.Fprintf(w, "you are get user %s", user) } func main(){ http.HandleFunc( "/",Handler) http.HandleFunc( "/add",Add) http.HandleFunc( "/redisset",redisset) http.HandleFunc( "/redisget",redisget) http.HandleFunc( "/valueget",valueget) s := &http.Server{ Addr: ":80", ReadTimeout: 30 * time.Second, WriteTimeout: 30 * time.Second, MaxHeaderBytes: 1 << 20, } log.Fatal(s.ListenAndServe()) }


对于go的基础教程,我也写过其他的文章,大家可以参考下。


关于Golang语言的web编程的实例及常见问题

http://rfyiamcool.blog.51cto.com/1030776/1285325


关于Go语言在服务端做Restful接口和socket通信

http://rfyiamcool.blog.51cto.com/1030776/1286372