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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2020/11/13 06:22:39 UTC

[GitHub] [servicecomb-java-chassis] VTracyHuang opened a new issue #2055: 不能这么写吗？ 里面没有model,还是报错Caused by: org.apache.servicecomb.foundation.common.exceptions.ServiceCombException: [simple type, class java.util.function.Supplier] is interface. Must be a concrete type.

VTracyHuang opened a new issue #2055:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2055


       @ApiOperation(value = "下载导入模板")
       @GetMapping("/action/exportTempalte")
       public ResponseEntity<String> exportExcelTempalte(HttpServletResponse response){
           try{
               //Resource目录中的文件
               String filePath = "/excels/讲师新增模板.xlsx";
               ClassPathResource classPathResource = new ClassPathResource(filePath);
               Workbook workbook= WorkbookFactory.create(classPathResource.getInputStream());
               ExcelUtil.downLoadExcel("讲师新增模板.xlsx", response, workbook);
           }catch (Exception e){
               e.printStackTrace();
               logger.error("文件下载失败,msg{}",e.getMessage());
           }
           return ResponseEntity.ok("success");
       }


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[GitHub] [servicecomb-java-chassis] VTracyHuang closed issue #2055: 不能这么写吗？ 里面没有model,还是报错Caused by: org.apache.servicecomb.foundation.common.exceptions.ServiceCombException: [simple type, class java.util.function.Supplier] is interface. Must be a concrete type.

Posted by GitBox <gi...@apache.org>.
VTracyHuang closed issue #2055:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2055


   


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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2055: 不能这么写吗？ 里面没有model,还是报错Caused by: org.apache.servicecomb.foundation.common.exceptions.ServiceCombException: [simple type, class java.util.function.Supplier] is interface. Must be a concrete type.

Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2055:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2055#issuecomment-726550195


   不可以的。 参考[开发指南](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/interface-constraints/)的说明， HttpServlepResponse 不能作为请求参数。 
   
   [上传下载文件参考](https://docs.servicecomb.io/java-chassis/zh_CN/general-development/upload-download/)
   [spring mvc 和 servicecomb 的差异](https://docs.servicecomb.io/java-chassis/zh_CN/build-provider/springmvc/)
   


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