diff --git a/src/views/ebiz/poster/PosterPreview.vue b/src/views/ebiz/poster/PosterPreview.vue
index b290a500e..4b2176c21 100644
--- a/src/views/ebiz/poster/PosterPreview.vue
+++ b/src/views/ebiz/poster/PosterPreview.vue
@@ -157,7 +157,7 @@ export default {
             window.localStorage.removeItem('className')
             this.$toast.clear()
             if (res.result == 0) {
-              this.imgUrl = config.imgDomain + `/returnImageStream?a=b.jpg&imgPath=${res.content.path}`
+              this.imgUrl = config.imgDomain + `/returnImageStream?a=`+Math.random()*100+`.jpg&imgPath=${res.content.path}`
               this.imgPath = res.content.path
               this.isShow = true
               console.log('created生成图片url');