将本地图片保存在BLOB字段中

1--实体类用Object接收

2.

@Controller
@RequestMapping(value = "/dev.do", produces = "application/json;charset=UTF-8")
public class DevController {
	
	
	@Value("${photoPath}")
	private String photoPath;
	
	@Autowired
	private HhDriverTableService hhDriverTableService;
	
	
	@Autowired
	private HhBmdService hhBMDService;
	/*
	 * 闸机认证
	 */
	@RequestMapping(params = "zjrz")
	@ResponseBody
	public String zjrz(HttpServletRequest request) throws JSONException {
		JSONObject result = new JSONObject();
		try {
			//接收参数
			String sfzmhm = request.getParameter("id");
//			sfzmhm = "632124199304091711";
			String photo = request.getParameter("ph");
			//将base64的photo转成图片保存在photoPath路径下
			//先判断photoPath这个文件夹是否存在
			File file = new File(photoPath);
			if (!file.exists() && !file.isDirectory()) {
				file.mkdir();
			}
			String name = UUID.randomUUID().toString();
			photoPath= photoPath +name + ".jpg";
			ImageBase64.generateImage(photo, photoPath);
			//根据传过来的sfzmhm和当前日期去查询
			List<HhDriverTable> driverTableList = hhDriverTableService.query(sfzmhm);
			if(driverTableList.size()>0) {
				HhDriverTable driverTable = driverTableList.get(0);
				//更新门禁照片和testno
				byte[] buffer = null;
		            File file2 = new File(photoPath);
		            FileInputStream fis = new FileInputStream(file);
		            ByteArrayOutputStream bos = new ByteArrayOutputStream();
		            byte[] b = new byte[1024];
		            int n;
		            while ((n = fis.read(b)) != -1){
		                bos.write(b, 0, n);
		            }
		            fis.close();
		            bos.close();
		            buffer = bos.toByteArray();
		            driverTable.setMjphoto(buffer);
		            hhDriverTableService.update(driverTable);
				result.put("code", "1");
				result.put("msg", "考生报到成功!");
			}else{
				List<HhBmd> bmdList = hhBMDService.findBySfzmhm(sfzmhm);
				if (bmdList.size()!=0) {//说明根据身份证号码找到了
					result.put("code", "1");
					result.put("msg", "认证成功!");
				}else{
					result.put("code", "0");
					result.put("msg", "认证失败");
				}
			}
		} catch (Exception e) {
			result.put("code", "0");
			result.put("msg", "认证失败!服务异常");
			e.printStackTrace();
		}
   		return result.toString();
	}
}

mapper:

  <update id="update" parameterType="com.hld.common.entity.HhDriverTable">
		update driver_table 
		<trim prefix="set" suffixOverrides=",">
         <if test="mjphoto != null and mjphoto != ''">
             mjphoto=#{mjphoto},
         </if>
             testno= 'A' ||to_char(systimestamp,'yymmddhh24missff4')
         </trim>
		 where lsh=#{lsh}
	</update>