request如何获取body的json数据

import com.alibaba.dubbo.common.utils.IOUtils;
BufferedReader reader = new BufferedReader(new InputStreamReader(request.getInputStream()));
String body = IOUtils.read(reader);
  System.out.println(body);

public JsonResult getDatalist(@RequestBody String reqJson) {
....
}

 /**
 *第一种
 */
    @PostMapping(value= "/addOrgposNoparametercheck",produces="application/json;charset=UTF-8")
    public int addOrgposNoparametercheck(@RequestBody SysOrgpos sysOrgpos)  {
        return sysOrgposService.addOrgposNoparametercheck(sysOrgpos);
    }
    
    /**
 *第二种
 */
    @RequestMapping(path = "/addOrgposNoparametercheck", method = RequestMethod.POST, produces ="application/json;charset=UTF-8" )
    public int addOrgposNoparametercheck(@RequestBody SysOrgpos sysOrgpos)  {
        return sysOrgposService.addOrgposNoparametercheck(sysOrgpos);
    }

    @Override
    public int addOrgposNoparametercheck(SysOrgpos sysOrgpos) {
        return sysOrgposMapper.addOrgpos(sysOrgpos);
    }

<insert id="addOrgpos" parameterType="com.pojo.systemmanager.SysOrgpos">
      insert into "sys_orgpos" ("id", "org_id","org_latitude", "org_longitude", "sortcode","updatetime", "isdel")
    values (#{id,jdbcType=VARCHAR}, #{org_id,jdbcType=VARCHAR}, #{org_latitude,jdbcType=VARCHAR},#{org_longitude,jdbcType=VARCHAR},
    #{sortcode,jdbcType=VARCHAR}, #{updatetime,jdbcType=VARCHAR},#{isdel,jdbcType=VARCHAR})
  </insert>

    @ApiOperation(value = "添加矿井地理信息,进行参数校验",notes="添加矿井地理信息,进行参数校验", produces = "application/json")
    @PostMapping(value= "/addOrgpos",produces="application/json;charset=UTF-8")
    public int addOrgpos(@RequestBody String sysOrgpos)  {
        return sysOrgposService.addOrgpos(sysOrgpos);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public int addOrgpos(String sysOrgpos) {
        JSONObject json = JSON.parseObject(sysOrgpos);
        String org_id = (String) json.get("org_id");
        String org_latitude = (String) json.get("org_latitude");
        String org_longitude = (String) json.get("org_longitude");
        String sortcode = (String) json.get("sortcode");
        SysOrgpos sysOrgpos1 = new SysOrgpos
                (id,org_id,org_latitude,org_longitude,sortcode,FormatDateUtil.dataFormat(new Date()),"0");
        int count = sysOrgposMapper.addOrgpos(sysOrgpos1);
        return count;
    }