修复手写信息采集表时间筛选功能

src/views/company/handwriteCollection/index.vue

@@ -166,7 +166,7 @@ export default {
         params.startDate = this.dateRange[0];
         params.endDate = this.dateRange[1];
       }
-      listCollection(this.queryParams).then(response => {
+      listCollection(params).then(response => {
         this.collectionList = response.rows;
         this.total = response.total;
         this.loading = false;
@@ -261,13 +261,21 @@ export default {
     },
     // 导出手写信息采集表
     handleExport() {
+      // 构建查询参数
       const params = { ...this.queryParams };
       if (this.dateRange && this.dateRange.length === 2) {
         params.startDate = this.dateRange[0];
         params.endDate = this.dateRange[1];
       }
+      // 删除分页参数
       delete params.pageNum;
       delete params.pageSize;
+      // 删除空值参数（可选，保留日期参数）
+      Object.keys(params).forEach(key => {
+        if (params[key] === null || params[key] === undefined || params[key] === '') {
+          delete params[key];
+        }
+      });
 
       this.$confirm('是否确认导出当前查询条件下的所有数据？', '导出确认', {
         confirmButtonText: '确定',