code: public <T> Converter<T> getConverter(Type type, boolean isCustomFirst) {
  		Converter<T> converter = null;
  		if (isCustomFirst) {
  			converter = this.getCustomConverter(type);
  			if (null == converter) {
  				converter = this.getDefaultConverter(type);
  			}
  		} else {
  			converter = this.getDefaultConverter(type);
  			if (null == converter) {
  				converter = this.getCustomConverter(type);
  			}
  		}
  		return converter;
  	}
docs: 获得转换器<br>
  
  @param <T> 转换的目标类型
  
  @param type 类型
  @param isCustomFirst 是否自定义转换器优先
  @return 转换器