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January 12, 2018 18:58
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合并Http请求的Go实现雏形
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package main | |
import ( | |
"net/http" | |
"log" | |
"io/ioutil" | |
"encoding/json" | |
"bytes" | |
"strings" | |
) | |
type Request struct { | |
Url string `json:"url"` | |
Method string `json:"method"` | |
Header map[string]string `json:"header"` | |
Body string `json:"body"` | |
} | |
type Response struct { | |
Url string `json:"url"` | |
Method string `json:"method"` | |
Header map[string]string `json:"header"` | |
Body string `json:"body"` | |
Request Request `json:"request"` | |
Status int `json:"status"` | |
StatusText string `json:"statusText"` | |
} | |
func JSONParse(request interface{}, body []byte) error { | |
return json.Unmarshal(body, &request) | |
} | |
type Mapper map[string]*Response | |
func main() { | |
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { | |
body, err := ioutil.ReadAll(r.Body) | |
if err != nil { | |
w.Write([]byte(err.Error())) | |
return | |
} | |
seriesRequest := make([]Request, 0) | |
concurrentRequest := *new(map[string]*Request) | |
if err := JSONParse(&seriesRequest, body); err != nil { | |
err := JSONParse(&concurrentRequest, body) | |
if err != nil { | |
w.Write([]byte(err.Error())) | |
return | |
} | |
client := &http.Client{ | |
} | |
var result = Mapper{} | |
count := 0 | |
ch := make(chan bool, 5) | |
for k, q := range concurrentRequest { | |
result[k] = nil | |
go func(k string, q *Request) { | |
req, err := http.NewRequest(q.Method, q.Url, bytes.NewReader([]byte(q.Body))) | |
if err != nil { | |
result[k] = nil | |
count++ | |
return | |
} | |
result[k] = &Response{ | |
Url: q.Url, | |
Method: q.Method, | |
Request: *q, | |
Header: map[string]string{}, | |
} | |
result[k].Request.Header = map[string]string{} | |
result[k].Request.Body = string(body) | |
// customer header | |
for k, v := range q.Header { | |
req.Header.Add(k, v) | |
} | |
res, err := client.Do(req) | |
result[k].Status = res.StatusCode | |
result[k].StatusText = res.Status | |
if err != nil { | |
result[k] = nil | |
count++ | |
return | |
} | |
// get request head | |
for key, values := range req.Header { | |
result[k].Request.Header[key] = strings.Join(values, ";") | |
} | |
// set response head | |
for key, values := range res.Header { | |
result[k].Header[key] = strings.Join(values, ";") | |
} | |
body, err := ioutil.ReadAll(res.Body) | |
if err != nil { | |
result[k] = nil | |
count++ | |
return | |
} | |
result[k].Body = string(body) | |
count++ | |
if count == len(concurrentRequest) { | |
close(ch) | |
} | |
}(k, q) | |
} | |
for range ch { | |
} | |
b, err := json.Marshal(result) | |
if err != nil { | |
w.Write([]byte(err.Error())) | |
return | |
} | |
w.Write(b) | |
} else { | |
client := &http.Client{ | |
} | |
result := make([]*Response, len(seriesRequest)) | |
for i, q := range seriesRequest { | |
req, err := http.NewRequest(q.Method, q.Url, bytes.NewReader([]byte(q.Body))) | |
result[i] = &Response{ | |
Url: q.Url, | |
Method: q.Method, | |
Request: q, | |
Header: map[string]string{}, | |
} | |
result[i].Request.Body = string(body) | |
if err != nil { | |
result[i] = nil | |
continue | |
} | |
for k, v := range q.Header { | |
req.Header.Add(k, v) | |
} | |
res, err := client.Do(req) | |
if err != nil { | |
result[i] = nil | |
continue | |
} | |
result[i].Status = res.StatusCode | |
result[i].StatusText = res.Status | |
// get request head | |
for key, values := range req.Header { | |
result[i].Request.Header[key] = strings.Join(values, ";") | |
} | |
for key, values := range res.Header { | |
result[i].Header[key] = strings.Join(values, ";") | |
} | |
body, err := ioutil.ReadAll(res.Body) | |
if err != nil { | |
result[i] = nil | |
return | |
} | |
result[i].Body = string(body) | |
} | |
b, err := json.Marshal(result) | |
if err != nil { | |
w.Write([]byte(err.Error())) | |
return | |
} | |
w.Write(b) | |
} | |
}) | |
log.Fatal(http.ListenAndServe(":8086", nil)) | |
} |
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