bug: add lock for bodycheck

controllers/bodycheck/bodycheck.go

@@ -7,6 +7,7 @@ import (
 	"spaceofcheng/services/models/model"
 	"spaceofcheng/services/service/bodycheck"
 	"spaceofcheng/services/utils"
+	"sync"
 
 	"github.com/astaxie/beego"
 )
@@ -15,6 +16,8 @@ import (
 // 临时的解决方案是放到全局单例对象中
 var qrCodes map[string]string
 
+var mtx *sync.Mutex
+
 // BodyCheckController 商品
 type BodyCheckController struct {
 	serv *bodycheck.BodyCheckServ
@@ -67,8 +70,15 @@ func (c *BodyCheckController) GetCheckByUser() {
 
 // PostCheckResult 测量结果返回
 func (c *BodyCheckController) PostCheckResult() {
+	// 防止并发
+	mtx.Lock()
+
 	r := c.Ctx.Request
-	defer r.Body.Close()
+	defer func() {
+		r.Body.Close()
+		mtx.Unlock()
+	}()
+
 	con, _ := ioutil.ReadAll(r.Body) //获取post的数据
 
 	var formVal map[string]interface{}
@@ -98,4 +108,5 @@ func (c *BodyCheckController) PostCheckResult() {
 
 func init() {
 	qrCodes = make(map[string]string)
+	mtx = new(sync.Mutex)
 }