springboot + mybatis 完成图片上传并保存到数据库

添加依赖

<dependency>
    <groupId>commons-fileupload</groupId>
    <artifactId>commons-fileupload</artifactId>
    <version>1.3</version>
</dependency>

@PostMapping("/uploadImage")
@ResponseBody
public String uploadImage(RepairOrderImage repairOrderImage){
    try {
        log.info("【repairOrderImage】" + repairOrderImage);
 
        InputStream inputStream = repairOrderImage.getImage().getInputStream();
        byte [] imageByte  = new byte[(int) repairOrderImage.getImage().getSize()];
        inputStream.read(imageByte);
 
        RepairOrderBlobs repairOrderBlobs = new RepairOrderBlobs();
        repairOrderBlobs.setFaultDes("测试");
 
        repairOrderBlobs.setImage(imageByte);
 
        repairOrderBlobsMapper.insert(repairOrderBlobs);
    }catch (Exception e){
        e.printStackTrace();
    }
    return ResultMessage.successJsonData();
}
@ResponseBody
@GetMapping("/getImage")
public void getImage(Long orderId,HttpServletResponse response){
    try {
        RepairOrderBlobs repairOrderBlobs = repairOrderBlobsMapper.getRecord(orderId);
 
        byte[] image = repairOrderBlobs.getImage();
 
        response.setContentType("image/jpeg");
        response.setCharacterEncoding("UTF-8");
        OutputStream outputSream = response.getOutputStream();
        InputStream in = new ByteArrayInputStream(image);
        int len = 0;
        byte[] buf = new byte[1024];
        while ((len = in.read(buf, 0, 1024)) != -1) {
            outputSream.write(buf, 0, len);
        }
 
        outputSream.close();
    }catch (Exception e){
        e.printStackTrace();
    }
 
}