调整笔记导出预览功能

src/views/user/Mynotes.vue

@@ -138,13 +138,13 @@
                     </div>
                 </div>
                 <div class="export-dialog-right">
-                    <p>累计导出{{datalist.length}}条</p>
+                    <p>累计导出{{exportPreData.length}}条</p>
                     <p style="margin-top:10px">导出时间：{{formatDate(new Date())}}</p>
                 </div>
 
             </div>
             <div class="export-dialog-body">
-                <div class="Export-info" style="" v-for="(item,idx) in datalist" :key="idx">
+                <div class="Export-info" style="" v-for="(item,idx) in exportPreData" :key="idx">
                 <div class="all-title">
                     <h3> {{item.courseName}}</h3>
                     <div v-if="item.playTime != ''"><img src="../../../public/images/coteplay.png" alt="">{{item.playTime}}</div>
@@ -227,6 +227,7 @@ export default {
            startTime:'',
            endTime:'',
            datalist:[ ],
+           exportPreData:[ ],
            thu:true,
            couresna:[],
            courseName:'',
@@ -251,9 +252,32 @@ export default {
   methods: {
     exportCommand(e) {
         this.exportType = e;
-        this.dialogVisible = true;
+        this.dialogVisible = false;
+        let data = {
+            orderType:this.orderType,
+            orderField:this.orderField,
+            courseId:this.courseId,
+            type:this.num,
+            startTime:this.startTime,
+            endTime:this.endTime,
+        }
+        // 获取导出文件前的预览数据
+        apiNote.exportExcelPre(data).then(res=>{
+          if(res.status != 200){return;}
+          if(res.result.data.length == 0){
+            this.$message.warning('未查询到满足条件的数据')
+            return;
+          }
+          this.exportPreData = res.result.data;
+          if(res.result.isImage && e == 2){
+            this.$message.warning('当前筛选条件下含图片类内容，无法导出Excel！')
+            return;
+          }
+          this.dialogVisible = true;
+        })
     },
     exportStart(){
+
         let ids = this.datalist.map(item=>{
             if(item.contentType !=3) {
               return item.id;
@@ -262,7 +286,12 @@ export default {
         let data = {
             name:this.userData.name,
             sign:this.userData.sign,
-            ids:ids,
+            orderType:this.orderType,
+            orderField:this.orderField,
+            courseId:this.courseId,
+            type:this.num,
+            startTime:this.startTime,
+            endTime:this.endTime,
             author:this.userData.avatar,//this.userInfo.avatar,
         }
         if(this.exportType == '1') {
@@ -274,7 +303,7 @@ export default {
                     let blob = new Blob([res],{type: 'application/vnd.ms-pdf;charset=UTF-8'}); // 设置文件类型
                     link.style.display = "none";
                     link.href = URL.createObjectURL(blob); // 创建URL
-                    link.setAttribute("download", "我的笔记.xls");
+                    link.setAttribute("download", "我的笔记.pdf");
                     document.body.appendChild(link);
                     link.click();
                     document.body.removeChild(link);
@@ -283,7 +312,16 @@ export default {
 
             })
         } else {
-            apiNote.exportExcel(ids).then(res=>{
+            let data = {
+                orderType:this.orderType,
+                orderField:this.orderField,
+                courseId:this.courseId,
+                type:this.num,
+                startTime:this.startTime,
+                endTime:this.endTime,
+            }
+            // apiNote.exportExcel(ids).then(res=>{
+              apiNote.exportExcel(data).then(res=>{
                 if(res.status) {
                     this.$message.error('导出失败');
                 } else {