在命令行中没有问题:
Darians-MacBook-Pro:gdriveweb darianhickman $ go build helloworld / hello.go
Darians-MacBook-Pro:gdriveweb darianhickman $
locahost错误:8080 /
无法构建Go应用程序。
(执行命令:/ Users / darianhickman / go_appengine / goroot / bin / go-app-builder -app_base /Users/darianhickman/gowork/src/bitbucket.org/darian_hickman/gdriveweb/helloworld -arch 6 -dynamic -goroot / Users / darianhickman / go_appengine / goroot -nobuild_files ^^ $ -unsafe -gopath / Users / darianhickman / gowork -binary_name _go_app -extra_imports appengine_internal / init -work_dir / var / folders / fk / wknp5jzn53gbgbml0yn695_m0000gn / T / tmpsHFP6tappengine-go-bin - gcflags -I,/ Users / darianhickman / go_appengine / goroot / pkg / darwin_amd64_appengine -ldflags -L,/ Users / darianhickman / go_appengine / goroot / pkg / darwin_amd64_appengine hello.go) /Users/darianhickman/gowork/src/golang.org/x/net/context/ctxhttp/ctxhttp.go:35:req.Cancel undefined(type * http.Request没有字段或方法取消)
2016/05/24 19:39:17 go-app-builder:构建时间:6×6g(总共469ms),0×6l(总共0) 2016/05/24 19:39:17 go-app-builder:运行失败6g:退出状态1
当我研究错误时
* http.Request没有字段或方法取消
它导致了一些关于更新到> Go1.5的不适用的帖子。
来源:
package hello
import (
"encoding/json"
"fmt"
"golang.org/x/net/context"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
"google.golang.org/api/drive/v3"
_ "google.golang.org/appengine/urlfetch"
"io/ioutil"
"log"
"net/http"
"net/url"
"os"
"os/user"
"path/filepath"
)
const (
assetfolder = "0B-zdryEj60U_MXVkajFweXBQWHM"
)
var (
dir *drive.FileList
)
func init() {
http.HandleFunc("/", handler)
ctx := context.Background()
b, err := ioutil.ReadFile("client_secret.json")
if err != nil {
log.Fatalf("Unable to read client secret file: %v", err)
}
// If modifying these scopes, delete your previously saved credentials
// at ~/.credentials/drive-go-quickstart.json
config, err := google.ConfigFromJSON(b, drive.DriveMetadataReadonlyScope)
if err != nil {
log.Fatalf("Unable to parse client secret file to config: %v", err)
}
client := getClient(ctx, config)
srv, err := drive.New(client)
if err != nil {
log.Fatalf("Unable to retrieve drive Client %v", err)
}
dir, err = srv.Files.List().PageSize(10).
Fields("nextPageToken, files(id, name)").Do()
if err != nil {
log.Fatalf("Unable to retrieve files.", err)
}
}
func handler(w http.ResponseWriter, r *http.Request) {
//fmt.Fprint(w, r.RequestURI)
fmt.Fprint(w, "Files:")
if len(dir.Files) > 0 {
for _, i := range dir.Files {
fmt.Fprint(w, "%s (%s)\n", i.Name, i.Id)
}
} else {
fmt.Fprint(w, "No files found.")
}
}
// getClient uses a Context and Config to retrieve a Token
// then generate a Client. It returns the generated Client.
func getClient(ctx context.Context, config *oauth2.Config) *http.Client {
cacheFile, err := tokenCacheFile()
if err != nil {
log.Fatalf("Unable to get path to cached credential file. %v", err)
}
tok, err := tokenFromFile(cacheFile)
if err != nil {
tok = getTokenFromWeb(config)
saveToken(cacheFile, tok)
}
return config.Client(ctx, tok)
}
// getTokenFromWeb uses Config to request a Token.
// It returns the retrieved Token.
func getTokenFromWeb(config *oauth2.Config) *oauth2.Token {
authURL := config.AuthCodeURL("state-token", oauth2.AccessTypeOffline)
fmt.Printf("Go to the following link in your browser then type the "+
"authorization code: \n%v\n", authURL)
var code string
if _, err := fmt.Scan(&code); err != nil {
log.Fatalf("Unable to read authorization code %v", err)
}
tok, err := config.Exchange(oauth2.NoContext, code)
if err != nil {
log.Fatalf("Unable to retrieve token from web %v", err)
}
return tok
}
// tokenCacheFile generates credential file path/filename.
// It returns the generated credential path/filename.
func tokenCacheFile() (string, error) {
usr, err := user.Current()
if err != nil {
return "", err
}
tokenCacheDir := filepath.Join(usr.HomeDir, ".credentials")
os.MkdirAll(tokenCacheDir, 0700)
return filepath.Join(tokenCacheDir,
url.QueryEscape("drive-go-quickstart.json")), err
}
// tokenFromFile retrieves a Token from a given file path.
// It returns the retrieved Token and any read error encountered.
func tokenFromFile(file string) (*oauth2.Token, error) {
f, err := os.Open(file)
if err != nil {
return nil, err
}
t := &oauth2.Token{}
err = json.NewDecoder(f).Decode(t)
defer f.Close()
return t, err
}
// saveToken uses a file path to create a file and store the
// token in it.
func saveToken(file string, token *oauth2.Token) {
fmt.Printf("Saving credential file to: %s\n", file)
f, err := os.Create(file)
if err != nil {
log.Fatalf("Unable to cache oauth token: %v", err)
}
defer f.Close()
json.NewEncoder(f).Encode(token)
}
func main() {
ctx := context.Background()
b, err := ioutil.ReadFile("client_secret.json")
if err != nil {
log.Fatalf("Unable to read client secret file: %v", err)
}
// If modifying these scopes, delete your previously saved credentials
// at ~/.credentials/drive-go-quickstart.json
config, err := google.ConfigFromJSON(b, drive.DriveMetadataReadonlyScope)
if err != nil {
log.Fatalf("Unable to parse client secret file to config: %v", err)
}
client := getClient(ctx, config)
srv, err := drive.New(client)
if err != nil {
log.Fatalf("Unable to retrieve drive Client %v", err)
}
r, err := srv.Files.List().PageSize(10).
Fields("nextPageToken, files(id, name)").Do()
if err != nil {
log.Fatalf("Unable to retrieve files.", err)
}
fmt.Println("Files:")
if len(r.Files) > 0 {
for _, i := range r.Files {
fmt.Printf("%s (%s)\n", i.Name, i.Id)
}
} else {
fmt.Print("No files found.")
}
}
答案 0 :(得分:0)
我通过重新下载并重新安装Go App Engine SDK来解决这个问题。我最好的猜测为什么这样做是因为旧版本的go以某种方式被包含在内。