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lists.stream().collect(collectingAndThen(toCollection(() -> new TreeSet<>(Comparator.comparing(o -> Rmap.getStr(o,"orderId")))),
                ArrayList::new));

public static Map asMap(Object... objects) {
        Map m = new HashMap(16);
        for (int i = 0; i < objects.length; i += 2) {
            if (i + 1 < objects.length) {
                m.put(objects[i], objects[i + 1]);
            } else {
                m.put(objects[i], null);
            }
        }
        return m;
    }

/**
     * 把 sourceList 的一些属性合并到 targetList 中
     * 基于 testFunction 的条件,合入逻辑实现为 biConsumer
     * @param targetList
     * @param sourceList
     * @param testFunction
     * @param biConsumer
     * @param <T>
     * @param <S>
     */
    public static <T, S> void merge(List<T> targetList, List<S> sourceList,
                                    BiFunction<? super T, ? super S,Boolean> testFunction,
                                    BiConsumer<? super T, ? super S> biConsumer) {
        targetList.forEach((t)->{
            Optional<S> optional = sourceList.stream().filter(s -> testFunction.apply(t,s)).findFirst();
            if (optional.isPresent()) {
                biConsumer.accept(t,optional.get());
            }
        });
    }

 /**
     * get 请求拼接参数
     * @param params
     * @return
     */
    public static String paramsConvertUrl(Map<String, Object> params) {
        StringBuilder urlParams = new StringBuilder("?");
        for (Map.Entry<String, Object> entry : params.entrySet()) {
            urlParams.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
        }
        String urlParamsStr = urlParams.toString();
        return urlParamsStr.substring(0, urlParamsStr.length()-1);
    }