Golang连接数据库失败问题求助

Golang连接数据库失败问题求助 我正在开发一个CRUD API，当我使用 go run main.go 运行应用程序时，遇到了这个错误。

[ORM]2020/02/18 21:25:50 register db Ping `default`, dial tcp: lookup dbHost: no such host
must have one register DataBase alias named `default`
exit status 2

以下是我的代码。我有一个模型文件夹，其中包含这些文件 models/db.go 和 models/users.go。

package models

import (
	"github.com/astaxie/beego/orm"
	_ "github.com/lib/pq" //PostgreSQL Driver
)

var ormObject orm.Ormer

// ConnectToDb - 初始化ORM并连接到PostgreSQL数据库
func ConnectToDb() {
	orm.RegisterDriver("postgres", orm.DRPostgres)
	orm.RegisterDataBase("default", "postgres", "user=postges password=postgres dbname=elixirapi_dev host=dbHost sslmode=disable")
	orm.RegisterModel(new(Users))
	ormObject = orm.NewOrm()
}

// GetOrmObject - 获取ORM对象的函数，我们可以用它来查询数据库
func GetOrmObject() orm.Ormer {
	return ormObject
}

users.go

package models

// Users - 用户表模型
type Users struct {
	UserId   int    `json:"user_id" orm:"auto"`
	Email    string `json:"email" orm:"size(128)"`
	Password string `json:"password" orm:"size(64)"`
	UserName string `json:"user_name" orm:"size(32)"`
}

main.go

package main

import (
	"net/http"

	"./models"
	"github.com/astaxie/beego/orm"
	"github.com/gin-gonic/gin"
)

var ORM orm.Ormer

func init() {
	models.ConnectToDb()
	ORM = models.GetOrmObject()
}

func main() {
	// 创建一个带有默认中间件的gin路由器：
	// logger和recovery（无崩溃）中间件
	router := gin.Default()

	router.POST("/createUser", createUser)
	router.GET("/readUsers", readUsers)
	router.PUT("/updateUser", updateUser)
	router.DELETE("/deleteUser", deleteUser)

	// 默认情况下，它在 :8080 上提供服务，除非
	// 定义了PORT环境变量。
	router.Run(":3000")
	// router.Run(":3000") 用于硬编码端口
}

func createUser(c *gin.Context) {
	var newUser models.Users
	c.BindJSON(&newUser)
	_, err := ORM.Insert(&newUser)
	if err == nil {
		c.JSON(http.StatusOK, gin.H{
			"status":    http.StatusOK,
			"email":     newUser.Email,
			"user_name": newUser.UserName,
			"user_id":   newUser.UserId})
	} else {
		c.JSON(http.StatusInternalServerError,
			gin.H{"status": http.StatusInternalServerError, "error": "创建用户失败"})
	}
}

func readUsers(c *gin.Context) {
	var user []models.Users
	_, err := ORM.QueryTable("users").All(&user)
	if err == nil {
		c.JSON(http.StatusOK, gin.H{"status": http.StatusOK, "users": &user})
	} else {
		c.JSON(http.StatusInternalServerError,
			gin.H{"status": http.StatusInternalServerError, "error": "读取用户失败"})
	}
}

func updateUser(c *gin.Context) {
	var updateUser models.Users
	c.BindJSON(&updateUser)
	_, err := ORM.QueryTable("users").Filter("email", updateUser.Email).Update(
		orm.Params{"user_name": updateUser.UserName,
			"password": updateUser.Password})
	if err == nil {
		c.JSON(http.StatusOK, gin.H{"status": http.StatusOK})
	} else {
		c.JSON(http.StatusInternalServerError,
			gin.H{"status": http.StatusInternalServerError, "error": "更新用户失败"})
	}
}

func deleteUser(c *gin.Context) {
	var delUser models.Users
	c.BindJSON(&delUser)
	_, err := ORM.QueryTable("users").Filter("email", delUser.Email).Delete()
	if err == nil {
		c.JSON(http.StatusOK, gin.H{"status": http.StatusOK})
	} else {
		c.JSON(http.StatusInternalServerError,
			gin.H{"status": http.StatusInternalServerError, "error": "删除用户失败"})
	}
}

有人能帮我解决这个问题吗？