code: public void populate(Object target, Map properties) throws BeanMappingException {
          BeanMappingParam param = new BeanMappingParam();
          param.setSrcRef(properties);
          param.setTargetRef(target);
          param.setConfig(this.populateConfig);
          param.setProcesses(BeanMappingEnvironment.getBeanMapVps());
          // 执行mapping处理
          BeanMappingExecutor.execute(param);
      }
docs: 将map的属性映射到bean对象
  
  @param target
  @param properties
  @throws BeanMappingException