fix:优化模版下载

project-order/src/main/java/com/dituhui/pea/order/controller/FileController.java

@@ -12,6 +12,9 @@ import com.dituhui.pea.order.service.impl.OrderCreateServiceImpl;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 import com.alibaba.excel.EasyExcel;
@@ -112,20 +115,25 @@ public class FileController {
      * @param response
      */
     @GetMapping(value = "/file/downOrder")
-    public void downOrderTemplate(HttpServletResponse response) {
+    public ResponseEntity<byte[]> downOrderTemplate() {
         try {
-            ArrayList arrayList = new ArrayList<OrderInfoExcelDTO>();
-            response.setContentType("application/vnd.ms-excel");
-            response.setCharacterEncoding("utf-8");
+            ArrayList<OrderInfoExcelDTO> arrayList = new ArrayList<>();
+            // 假设您有方法获取需要导出的数据，然后添加到 arrayList 中
+
+            HttpHeaders headers = new HttpHeaders();
             String fileName = URLEncoder.encode("ORDER-" + new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()), "UTF-8").replaceAll("\\+", "%20");
-            response.setHeader("Content-disposition", "attachment;filename*=utf-8''" + fileName + ".xlsx");
-            EasyExcel.write(response.getOutputStream(), OrderInfoExcelDTO.class)
+            headers.setContentDispositionFormData("attachment", fileName + ".xlsx");
+            headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
+
+            ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+            EasyExcel.write(outputStream, OrderInfoExcelDTO.class)
                     .registerWriteHandler(ExcelUtil.getDefaultWriteHandler())
-                    //注入原生 或 自定义转换器
                     .registerConverter(new DateStringConverter())
                     .registerConverter(new BigDecimalStringConverter())
                     .sheet("工单列表").doWrite(arrayList);
 
+            byte[] excelBytes = outputStream.toByteArray();
+            return new ResponseEntity<>(excelBytes, headers, HttpStatus.OK);
         } catch (IOException e) {
             throw new BusinessException("订单列表模版下载异常：" + e.getMessage());
         }