feat(frontend):数据集添加bug修复

frontend/src/views/dataset/add/AddExcel.vue

@@ -185,7 +185,8 @@ export default {
           dataSourceId: null,
           type: 'excel',
           mode: parseInt(this.mode),
-          info: '{"data":"' + this.path + '"}'
+          // info: '{"data":"' + this.path + '"}',
+          info: JSON.stringify({ data: this.path })
         }
       } else {
         table = {
@@ -195,7 +196,8 @@ export default {
           dataSourceId: null,
           type: 'excel',
           mode: parseInt(this.mode),
-          info: '{"data":"' + this.path + '"}',
+          // info: '{"data":"' + this.path + '"}',
+          info: JSON.stringify({ data: this.path }),
           editType: this.param.editType ? this.param.editType : 0
         }
       }

frontend/src/views/dataset/add/AddSQL.vue

@@ -219,7 +219,8 @@ export default {
       post('/dataset/table/sqlPreview', {
         dataSourceId: this.dataSource,
         type: 'sql',
-        info: '{"sql":"' + this.sql + '"}'
+        // info: '{"sql":"' + this.sql + '"}',
+        info: JSON.stringify({ sql: this.sql })
       }).then(response => {
         this.fields = response.data.fields
         this.data = response.data.data