JAVA爬虫-中文转UNICODE和URL转码

    private Document searchkeyword(String searchkeyword, String host){
        String apiUrl = "http://xxxxxxx?name=%s&key=%s&page=1";
        Document document = null;
        try{
            String unicode = encoding(searchkeyword);
            String name = URLEncoder.encode(searchkeyword, "UTF-8");
            String url = String.format(apiUrl, name, unicode);
            // 将 转换为 %25 事先转换 这样请求的时候 URL不会再decode
            String newUrl = StringUtils.replace(url, "\", "%25");
            document = jsoupConnectGet(host, newUrl, null);
        }catch (Throwable t){
            log.error("searchkeyword()失败-->>", t);
        }
        return document;
    }


    public static String encoding(String str) {
        if(StringUtils.isBlank(str)){
            return "";
        }
        char[] utfBytes = str.toCharArray();
        String unicodeBytes = "";
        for (int i = 0; i < utfBytes.length; i++) {
            String hexB = Integer.toHexString(utfBytes[i]);
            if (hexB.length() <= 2) {
                hexB = "00" + hexB;
            }
            unicodeBytes = unicodeBytes + "\u" + hexB;
        }
        return unicodeBytes;
    }