测试

private void parse_str(String str, Map<String, String> sets) {
        if (str == null || str.length() < 1) {
            return;
        }
        String[] ps = str.split("&");
        for (int i = 0; i < ps.length; i++) {
            String[] items = ps[i].split("=");
            if (items.length == 2) {
                sets.put(items[0], items[1]);
            }
            else if (items.length == 1) {
                sets.put(items[0], "");
            }
        }
    }