public static List<SelectorConditionDTO> buildDefaultSelectorConditionDTO(final String contextPath) {
        SelectorConditionDTO selectorConditionDTO = new SelectorConditionDTO();
        selectorConditionDTO.setParamType(ParamTypeEnum.URI.getName());
        selectorConditionDTO.setParamName("/");
        selectorConditionDTO.setOperator(OperatorEnum.STARTS_WITH.getAlias());
        selectorConditionDTO.setParamValue(contextPath + Constants.PATH_SEPARATOR);
        return Collections.singletonList(selectorConditionDTO);
    }
build default selector condition list.

@param contextPath context path
@return list
shenyu-admin/src/main/java/org/apache/shenyu/admin/utils/SelectorUtil.java