函数体外的非声明语句

Question

我用 Go 为 API 写了一些关于“Go Web 开发 Cookbook.pdf”的代码。我运行代码时遇到错误。我用 slice 声明了一个 strick 和 initial 并且在 slice 中我制作了两个 slice 项目但是我在执行此操作时它显示“函数体之外的非声明语句”我在互联网上搜索了解决方案。这是我的代码：

package main
import
(
    "fmt"
    "encoding/json"
    "log"
    "net/http"
    "github.com/gorilla/mux"
)
const
(
    CONN_HOST = "localhost"
    CONN_PORT = "8080"
)
type Route struct
{
    Name string
    Method string
    Pattern string
    HandlerFunc http.HandlerFunc
}
type Routes [] Route
var routes = Routes
{
    Route
    {
        "getEmployees",
        "GET",
        "/employees",
        getEmployees,
    },
    Route
    {
        "getEmployee",
        "GET",
        "/employee/{id}",
        getEmployee,
    },
}

type Employee struct
{
    Id string `json:"id"`
    FirstName string `json:"firstName"`
    LastName string `json:"lastName"`
}
type Employees []Employee
var employees []Employee
func init() {
    employees = employees {
        Employee{Id: "1", FirstName: "Foo", LastName: "Bar"},
        Employee{Id: "2", FirstName: "Baz", LastName: "Qux"},
    }
}

func getEmployees(w http.ResponseWriter, r *http.Request) {
    json.NewEncoder(w).Encode(employees)
}

func getEmployee(w http.ResponseWriter, r *http.Request) {
    vars := mux.Vars(r)
    id := vars["id"]
    for _, employee := range employees {
        if employee.Id == id {
            if err := json.NewEncoder(w).Encode(employee); err != nil {
                log.Print("error getting requested employee :: ", err)
            }
        }
    }
}
func AddRoutes(router *mux.Router) *mux.Router {
    for _, route := range routes {
        router.
        Methods(route.Method).
        Path(route.Pattern).
        Name(route.Name).
        Handler(route.HandlerFunc)
    }
    return router
}
func main() {
    muxRouter := mux.NewRouter().StrictSlash(true)
    router := AddRoutes(muxRouter)
    err := http.ListenAndServe(CONN_HOST+":"+CONN_PORT, router)
    if err != nil {
        log.Fatal("error starting http server :: ", err)
        return
    }
}

“var routes = Routes”行表示错误。

Answer 1

你的代码格式有问题，在Go你需要保持花括号的约定，你不能把它放在另一行，你需要这样做:

var routes = Routes{
    Route{
        "getEmployees",
        "GET",
        "/employees",
        getEmployees,
    },
    Route{
        "getEmployee",
        "GET",
        "/employee/{id}",
        getEmployee,
    },
}

函数体外的非声明语句

non-declaration statement outside function body

struct

go

slice