style: 错误信息英文返回-lib包

lib/services/services.go

@@ -138,20 +138,14 @@ func ExtGetUriPageLimitString(r *http.Request) string {
 }
 
 func IsJsonContentType(r *http.Request) bool {
-	if strings.Contains(r.Header.Get("Content-Type"), "application/json") {
-		return true
-	}
-	return false
+	hType := r.Header.Get("Content-Type")
+	return strings.Contains(hType, "application/json")
 }
 
 func IsValidOAuthUri(r *http.Request) bool {
 	vars := mux.Vars(r)
 	apiVer := vars["apiVersion"] // 获取Uri
-	if apiVer != "v1" {
-		return false
-	}
-
-	return true
+	return apiVer == "v1"
 }
 
 func IsVallidContentType(r *http.Request, checkFlag bool) bool {
@@ -386,7 +380,7 @@ func CheckCommonValidRequest(w http.ResponseWriter, r *http.Request) (string, er
 	// error processing ...
 	// 401-1 response
 	token, ret = oauth.IsCarriedToken(r)
-	if ret == false {
+	if !ret {
 		log.Error("accessToken is not carried")
 		ResponseUnauthorized401AccessTokenNotCarried(w)
 		return token, err