HTTP请求中文等出现乱码解决方案

/**
     *
     * @Description: http://xxx/m/studyguidenotesbackup/bookContent.json?token=xxx&bookContent=xxx&bookContentID=xxx
     * @param userToken
     * @param sermonId
     * @param sermonContent
     * @return
     * @author: J
     * @date: 2015-9-19
     * @version: TODO
     */
    public static SermonNoteBackupResultVO uploadSermonToBackendServer(String userToken, String sermonId, String sermonContent) {
        String uploadSermonToBackendServerURLPath = ConstantUtil.DOMAIN + "/m/studyguidenotesbackup/bookContent.json";
        HttpPost postUploadSermonBackup = new HttpPost();
        HttpClient clientUploadSermonBackup = new DefaultHttpClient();
        BufferedReader reader = null;
        List<NameValuePair> params = new ArrayList<NameValuePair>();
        SermonNoteBackupResultVO sermonNoteBackupResultVO = null;

        try {
            postUploadSermonBackup.setURI(new URI(uploadSermonToBackendServerURLPath));
            params.add(new BasicNameValuePair("token", userToken));
            params.add(new BasicNameValuePair("bookContent", sermonContent));
            params.add(new BasicNameValuePair("bookContentID", sermonId));

            postUploadSermonBackup.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
            postUploadSermonBackup.setHeader("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
            HttpResponse response = clientUploadSermonBackup.execute(postUploadSermonBackup);

            reader = new BufferedReader(new InputStreamReader(response
                    .getEntity().getContent()));

            StringBuffer strBuffer = new StringBuffer("");
            String line = null;
            while ((line = reader.readLine()) != null) {
                strBuffer.append(line);
            }

            sermonNoteBackupResultVO = GsonParse.getObjResult(strBuffer.toString(), SermonNoteBackupResultVO.class);
        }catch (Exception e) {
            e.printStackTrace();
        }finally {
            if (reader != null) {
                try {
                    reader.close();
                    reader = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        return sermonNoteBackupResultVO;
    }

以上代码是我修改过的代码，不会出现乱码了，下面和大家分享下解决这个问题的心得体会。

问题描述：因为项目初期一直是支持英文的，所以这块也没考虑过中文或者其他国家的文字会出现乱码的情况，不巧遇到一个越南客户，越南文出现了乱码。

排查问题，客户端和服务器端都已经设置了UTF-8的编码模式，但是服务器端收到的Android端的备份文件还是乱码，但是IOS端确是正常的，有点迷茫之下开始查找解决方案。

Android和ios同时打印Http请求的头部，发现问题所在：

Andorid  :  content-type:application/x-www-form-urlencoded;
IOS  :  content-type:application/x-www-form-urlencoded; charset=utf-8;

OK.找到问题解决之即可。

在Android客户端Post请求的时候加上：postUploadSermonBackup.setHeader("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");