文件下載 iE 不支持201狀態

      使用springmvc創建下載文件時發現只有IE不能成功下載

      

/**
     * 獲取中圖片以下載使用 260*260
     * 
     * @return
     * @throws IOException
     */
    @RequestMapping("/download")
    public ResponseEntity<byte[]> download(Long id, HttpServletRequest request) throws Exception {
    	Order order = orderService.find(id);
    	String code = order.getOrderDimensional().getTwoDimensionalCode();
    	try {

    		
    		ByteArrayOutputStream out = new ByteArrayOutputStream();
            MatrixToImageWriter.buildToOutputStream(code, 260, 260, out);
            ByteArrayInputStream input = new ByteArrayInputStream(out.toByteArray());
            Font font = new Font("微軟雅黑", Font.BOLD, 20);
            out = new ByteArrayOutputStream();
            //260*260 圖片允許最多數字字符串：21 font 20px
            int x = 0;
    		if (code.length() <= 21 && code.length() >= 0) {
    			x = (21 - code.length()) / 2 * 12;
    		}
    		orderDimensionalService.addCodeView(input, out, code, 20, x, 260, font, 100);
            
            HttpHeaders headers = new HttpHeaders();
            String fileName=new String("訂單二維碼.png".getBytes("UTF-8"),"iso-8859-1");//爲了解決中文名稱亂碼問題  
            headers.setContentDispositionFormData("attachment", fileName);
            headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
            byte[] bytes = out.toByteArray();
            
            input.close();
            out.close();
            
            return new ResponseEntity<byte[]>(bytes,
                    headers, HttpStatus.CREATED);
		} catch (Exception e) {
			e.printStackTrace();
		}
    	return null;
    }

原因是IE對狀態碼：201不支持，可以修改爲200.

 

    在Java代碼中表現爲 HttpStatus.CREATED 修改爲 HttpStatus.OK