这里贴你的代码块
```			$.ajax({
				url: '${ctx}/batchcollectiontemplatecontroller/BatchCollectionTemplateController/downloadTemplate?templateName=协办人员基本信息采集模板',
				type: 'get',
				beforeSend: function(xhr) {
					xhr.responseType = "arraybuffer";
				},
				success : function(result, state, xhr){
					const saveResult = xhr.getResponseHeader('saveresult');
					const fileName = xhr.getResponseHeader('Content-Disposition').split(';')[1].split('=')[1].replace(/\"/g, '');
					if (window.navigator && window.navigator.msSaveOrOpenBlob) {
						window.navigator.msSaveOrOpenBlob(xhr.response, fileName);
					}else {//支持a标签download的浏览器
							//通过创建a标签实现
							let link = document.createElement("a");
							//文件名
							link.download = decodeURI(fileName);
							link.style.display = "none"
							let blob = new Blob([result], {type: "application/octet-stream"});
							link.href = URL.createObjectURL(blob);
							document.body.appendChild(link);
							link.click();//执行下载
							URL.revokeObjectURL(link.href);//释放url
							document.body.removeChild(link);//释放标签
						}
					}
				})

                response.setContentType("application/octet-stream");
                // 可以暴露给浏览器获取的的响应头属性
                response.setHeader("Access-Control-Expose-Headers", "Content-Disposition");
                response.setHeader("Content-Disposition", "attachment;filename=" + fileName + ".xlsx");
                response.setHeader("saveresult", "false");

### 实际结果、报错信息、截图

1. 

### 环境版本：

- JDK版本：1.8
- 浏览器版本：Chrome Edge
- 平台版本：JeeSite 4.0.6