1 package main
 2 import (
 3     "net/http"
 4     "time"
 5     "math/rand"
 6     "io/ioutil"
 7     "net/url"
 8     "strings"
 9     "fmt"
10 )
11 func randString() string {
12     var s []byte
13     for l:= rand.Uint32()%10+1; l>0 ;l-- {
14         s = append(s,uint8(rand.Uint32()%26+‘a‘));
15     }
16     //println("rand",string(s))
17     return string(s)
18 }
19 var ch chan int
20 func post(id int) {
21     println("run post",id)
22     username := randString()
23     password := randString()
24     resp,_ := http.PostForm("http://127.0.0.1:8080/login",url.Values{"username" : {username}, "password" : {password}})
25     println("login    username:",username,"password:",password)
26     if resp == nil {
27         println("login fail")
28         return
29     }
30     println(resp.StatusCode)
31     resp.Body.Close();
32     post1(username)
33 }
34 func post1(s string) {
35     //ch<-1
36     for true{
37         time.Sleep(time.Second * 10)
38         resp,_ := http.PostForm("http://127.0.0.1:8080/check",url.Values{"username" : {s}})
39         if resp == nil {
40             println("post1 no response")
41             return
42         }
43         defer resp.Body.Close();
44         println("check online :",s)
45     }
46 }
47 func DoRequest() {
48     for i:=0; i< 100; i++ {
49         transport := http.Transport{
50             DisableKeepAlives : true,
51         }
52         client := &http.Client{
53             Transport : &transport,
54         }
55     
56         username := randString()
57         password := randString()
58         req, err := http.NewRequest("POST", "http://127.0.0.1:8080/login", 
59         strings.NewReader(url.Values{"username" : {username}, "password" : {password}}.Encode()))
60         if err != nil {
61             println("error:",err.Error())
62         }
63     
64         req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
65         req.Header.Set("Cookie", "name=anny")
66         req.Header.Set("username",username)
67         req.Header.Set("password",password)
68         println("login    username:",username,"password:",password)
69         resp, err := client.Do(req)
70         if err != nil {
71             println("error:",err.Error())
72         }
73         if resp == nil {
74             println("login no response")
75             return
76         }
77         defer resp.Body.Close()
78     
79         body, err := ioutil.ReadAll(resp.Body)
80         if err != nil {
81             println("error:",err.Error())
82         }
83     
84         fmt.Println(string(body))
85         go post1(username)
86     }
87 }
88 func main()  {
89     //ch=make(chan int,100000)
90     for i:=0 ;i<10;i++ {
91          go DoRequest()
92     }
93     for true {
94     //    if len(ch) > 10000 {
95     //        println(len(ch))
96     //    }
97     }
98 }