java url 转码 java url编码转中文

java中对url地址中的中文进行编码

// URL中汉字编码
    private String urlEncodeChinese(String url) {
        try {
            Matcher matcher = Pattern.compile("[\\u4e00-\\u9fa5]").matcher(url);
            String tmp = "";
            while (matcher.find()) {
                tmp = matcher.group();
                url = url.replaceAll(tmp, URLEncoder.encode(tmp, "UTF-8"));
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return url.replace(" ", "%20");
    }