h5-2019/controllers/base.go

package controllers

import (
	"h5-2019/utils"
	"reflect"

	"github.com/astaxie/beego"

	"net/http"
)

//Message api统一的返回消息格式
type Message struct {
	Code    int         `json:"code"`
	Message interface{} `json:"message"`
}

//BaseController 基础controller
type BaseController struct {
	beego.Controller
}

const (
	SESSION_USER = "h5.user"
	PAGENUM      = 10
	LISTPAGENUM  = 20
)

// BaseControllerInterface 项目约定的 Controller 须满足的接口
type BaseControllerInterface interface {
	Constructor()
}

//Prepare 继承beego的
func (c *BaseController) Prepare() {
	// 微信初始化
	utils.WechatInit()

	// 路由对应的实际 Controller 初始化
	c.initController()
}

// ResponseJson 自定义的JSON返回
func (c *BaseController) ResponseJson(msg interface{}, code ...int) {
	status := http.StatusOK
	if len(code) > 0 {
		status = code[0]
	}

	if reflect.ValueOf(msg).Type().String() == "*errors.errorString" {
		err := msg.(error)
		c.Data["json"] = Message{status, err.Error()}
	} else {
		c.Data["json"] = Message{status, msg}
	}

	c.ServeJSON()
	c.StopRun()
}

// initAppController 执行当前路由请求对应的 Controller 初始化
func (c *BaseController) initController() {
	if ctrl, ok := c.AppController.(BaseControllerInterface); ok {
		ctrl.Constructor()
	}
}

func (c *BaseController) WechatAppID() {
	c.ResponseJson(map[string]interface{}{
		"appid": beego.AppConfig.String("wechat::appid"),
	})
}