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9
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1 package main
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2
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3 import (
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4 "fmt"
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5 "io/ioutil"
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6 "net/http"
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7 )
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8
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9 func main() {
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10 ch := make( chan string )
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11 var urls []string
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12 urls = append( urls, "http://yahoo.com" )
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13 urls = append( urls, "http://yahoo.co.jp" )
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14
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15 for _, url := range urls {
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16 go fetch( url, ch )
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17 }
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18 for range urls {
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19 fmt.Println( <-ch )
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20 }
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21 }
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22
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23 func fetch( url string, ch chan <- string ) {
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24 resp, err := http.Get( url )
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25 if err != nil {
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26 ch <- fmt.Sprint( err )
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27 return
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28 }
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29 b, err := ioutil.ReadAll( resp.Body )
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30 resp.Body.Close()
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31 if err != nil {
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32 ch <- fmt.Sprint( err )
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33 return
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34 }
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35 ch <- fmt.Sprintf( "%s", b )
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36 }
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37
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