HttpClient用HttpPost传输中文字符串乱码

public static String getHttpRequestString(String url,String body) throws IOException {
        HttpClient client = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);

        StringEntity stringEntity = new StringEntity(body);
        httpPost.setEntity(stringEntity);
        httpPost.setHeader("Content-Type", "application/json; charset=UTF-8");

        HttpResponse response = client.execute(httpPost);
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));
        String line;
        StringBuffer jsonString = new StringBuffer();
        while((line = bufferedReader.readLine()) != null) {
            jsonString.append(line);
        }
        return jsonString.toString();
    }

这是最初的代码，如果传输的body有中文汉字的话，如果对方设置的格式是UTF-8，那么他接收到的字符是乱码，

stringEntity.setContentEncoding("UTF-8");

加上这样一句代码，设置下格式就好了。