golang利用http模块构建redis读写查api

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。

先搞下golang的redis模块

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

简单说下golang操作redis的例子

//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

wKioL1Mrmi3Qj3nVAAHGNMEWAPA108.jpg

客户端的测试

wKiom1MrmkSg8_TGAATqDvHKzoA311.jpg

//xiaorui.cc
package main
import(
    "fmt"
    "net/http"
    "io/ioutil"
    "log"
    "time"
    "redis"
)
//xiaorui.cc
const AddForm = `
<html><body>
<form method="POST" action="/add">
Name: <input type="text" name="name">
Age: <input type="text" name="age">
<input type="submit" value="Add">
</form>
</body></html>
`
const setform = `
<html><body>
<form method="POST" action="/set">
key: <input type="text" name="key">
value: <input type="text" name="value">
<input type="submit" value="set">
</form>
</body></html>
`
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())
}







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