图片上传--IllegalStateException File has been moved

图片上传–IllegalStateException File has been moved - cannot be read again解决

功能描述：

1，上传图片保存至数据库
2，将该图片按scale=125/width > 125/height ? 125/height : 125/width的比例缩小，存此小图到数据库。

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出错描述详情

IllegalStateException File has been moved - cannot be read again

1.获得request 中的图片

MultipartFile imgFile= ((DefaultMultipartHttpServletRequest)request).getFile("imgFile"）

2.保存大图

file = new File(firstDir,fileName);imgFile.transferTo(file); 

3.从imgFile中获得bufferedImage以便缩放处理

InputStream is = imgFile.getInputStream();  //此语句抛出异常BufferedImage bi=ImageIO.read(is);

将上述步骤按照先处理保存小图，后保存大图，则无异常抛出。即顺序为1,3,2