fastjson string[]转 json字符串

  @RequestMapping(value = "/friendlink_list/province_list", produces = {"application/json;charset=UTF-8"}, method = RequestMethod.GET)

    @ResponseBody

    public String province_list(HttpServletRequest request, HttpServletResponse response) throws IOException {

        FriendLinkService fls = new FriendLinkService();

       String[] plist = fls.getPlist();

        String pl = JSONObject.toJSONString(plist);

        return pl;

    }