上传限制完善

src/views/contentManagement/banner/index.vue

@@ -164,7 +164,7 @@
           <el-upload
             class="avatar-uploader"
             action="#"
-
+            accept=".png,.jpg,.jpeg,.PNG,.JPG,.JPEG"
             :http-request="handleUpload"
             :show-file-list="false"
             :on-success="handleAvatarSuccess"
@@ -331,6 +331,18 @@ export default {
     },
     beforeAvatarUpload(file) {
       // this.file = file
+      // 判断文件是否为图片类型
+      const isJPG = file.type === 'image/jpeg' || file.type === 'image/png'
+      const isLt2M = file.size / 1024 / 1024 < 2
+      if (!isJPG) {
+        this.$message.error('只能上传图片格式的文件!')
+        return false
+      }
+      if (!isLt2M) {
+        this.$message.error('上传图片大小不能超过 2MB!')
+        return false
+      }
+      this.file = file
     },
 
     step(index) {

src/views/contentManagement/centralCase/info/index.vue

@@ -72,6 +72,7 @@
                 ]"
               >
                 <el-upload
+                  accept=".png,.jpg,.jpeg,.PNG,.JPG,.JPEG"
                   class="avatar-uploader"
                   action="#"
                   :http-request="handleUpload"

src/views/contentManagement/competitionSupport/index.vue

@@ -165,6 +165,7 @@
           <el-col :span="12">
             <el-form-item label="封面:" prop="contestPicture">
               <el-upload
+                accept=".png,.jpg,.jpeg,.PNG,.JPG,.JPEG"
                 class="avatar-uploader"
                 action="#"
                 :http-request="handleUpload"

src/views/contentManagement/developmentCourse/index.vue

@@ -189,6 +189,7 @@
         </el-form-item>
         <el-form-item label="图片:" prop="url">
           <el-upload
+            accept=".png,.jpg,.jpeg,.PNG,.JPG,.JPEG"
             :show-file-list="false"
             list-type="picture-card"
             action="#"

src/views/contentManagement/newsInformation/info/index.vue

@@ -89,6 +89,7 @@
             <el-col :span="8">
               <el-form-item label="封面:">
                 <el-upload
+                  accept=".png,.jpg,.jpeg,.PNG,.JPG,.JPEG"
                   :disabled="secondFromDisabled"
                   class="avatar-uploader"
                   action="#"

src/views/courseInformation/lecturerManagement/index.vue

@@ -162,6 +162,7 @@
             v-model="form.avatarId"
             class="avatar-uploader"
             action="#"
+            accept=".png,.jpg,.jpeg,.PNG,.JPG,.JPEG"
             :show-file-list="false"
             :file-list="photoList"
             :on-change="changePhotoFile"