用httpPost对JSON发送和接收的例子

HTTPPost发送JSON：


private static final String APPLICATION_JSON = "application/json";


    


    private static final String CONTENT_TYPE_TEXT_JSON = "text/json";




public static void httpPostWithJSON(String url, String json) throws Exception {


        // 将JSON进行UTF-8编码,以便传输中文


        String encoderJson = URLEncoder.encode(json, HTTP.UTF_8);


        


        DefaultHttpClient httpClient = new DefaultHttpClient();


        HttpPost httpPost = new HttpPost(url);


        httpPost.addHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON);


        


        StringEntity se = new StringEntity(encoderJson);


        se.setContentType(CONTENT_TYPE_TEXT_JSON);


        se.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE, APPLICATION_JSON));


        httpPost.setEntity(se);


        httpClient.execute(httpPost);


    }

接收HTTPPost中的JSON:


public static String receivePost(HttpServletRequest request) throws IOException, UnsupportedEncodingException {


        


        // 读取请求内容


        BufferedReader br = new BufferedReader(new InputStreamReader(request.getInputStream()));


        String line = null;


        StringBuilder sb = new StringBuilder();


        while((line = br.readLine())!=null){


            sb.append(line);


        }




        // 将资料解码


        String reqBody = sb.toString();


        return URLDecoder.decode(reqBody, HTTP.UTF_8);


    }