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);    }

以上摘自：http://chaico.iteye.com/blog/1954128

以下来自http://www.itnose.net/news/128/6262455

接收HTTPPost中的JSON:

     
      import com.google.gson.Gson;
     

public AttendanceInfo getAttendanceInfoFromBbchat(){		 // 读取请求内容		ToftContext context = ToftContext.getToftContext();		try {			InputStream in = context.getRequest().getInputStream();		    BufferedReader br = new BufferedReader(new InputStreamReader(in));		    StringBuffer stringBuffer = new StringBuffer();			String str = "";			while ((str = br.readLine()) != null) {				stringBuffer.append(str);			}			String info = stringBuffer.toString();			if(StringUtils.isNotBlank(info)){				Gson gson = new Gson();				AttendanceInfo attendanceInfo = gson.fromJson(info, AttendanceInfo.class);				if(StringUtils.isNotBlank(attendanceInfo.getToken())){					context.getRequest().setAttribute("token", attendanceInfo.getToken());				}				return attendanceInfo;			}		}catch (Exception e) {			// TODO: handle exception			log.error("bbchat 解析邦邦社区考勤json参数出现异常");			e.printStackTrace();		}		return null;	}

HTTPPost发送JSON：

public static String pushAttendanceInfo(){		String url = "http://ibb.anbanggroup.com:8080/push/push";		HttpClient httpClient = new HttpClient();		// 设置连接超时时间(单位毫秒)		httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(60*1000);		// 设置读取超时时间(单位毫秒)		httpClient.getHttpConnectionManager().getParams().setSoTimeout(60*1000);		PostMethod method = new PostMethod(url);		String info = null;		try {			String aaa = "{\"token\": \"ee32da94162d4b688af2b0241db4600a\",\"touser\":\"AB044979\""+			     ",\"msgtype\":\"text\",\"msg\":{\"content\": \"Hello\"},\"start\":\"\",\"end\":\"2015-05-30 00:00:00\"}";			RequestEntity entity = new StringRequestEntity(aaa, "application/json", "UTF-8");			method.setRequestEntity(entity);			httpClient.executeMethod(method);			int code = method.getStatusCode();			if (code == HttpStatus.SC_OK) {				BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));				StringBuffer stringBuffer = new StringBuffer();				String str = "";				while ((str = reader.readLine()) != null) {					stringBuffer.append(str);				}				info = stringBuffer.toString();				log.info("bbchat 返回报文："+info);			}else{				log.error("bbchat 接口返回失败  httpStatusCode="+code);			}		} catch (Exception ex) {			ToftLogger.error("内部接口报文发送异常:" + ex.getMessage());			ex.printStackTrace();		} finally {			if (method != null) {				method.releaseConnection();			}		}		return info;	}

HTTPPost发送参数： 

/**	 * 考勤推送接口登陆	 * @return	 */	public static String loginAttendancePush(){		String url = "http://ibb.anbanggroup.com:8080/authenticate/ablogin";		HttpClient httpClient = new HttpClient();		// 设置连接超时时间(单位毫秒)		httpClient.getHttpConnectionManager().getParams().setConnectionTimeout(60*1000);		// 设置读取超时时间(单位毫秒)		httpClient.getHttpConnectionManager().getParams().setSoTimeout(60*1000);		PostMethod method = new PostMethod(url);		String info = null;		try {			method.setParameter("username", "27607");			method.setParameter("password", "cd55abee1c0ef6d4525a223faf00c96a193576f58ceb39b9");			httpClient.executeMethod(method);			int code = method.getStatusCode();			if (code == HttpStatus.SC_OK) {				BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream()));				StringBuffer stringBuffer = new StringBuffer();				String str = "";				while ((str = reader.readLine()) != null) {					stringBuffer.append(str);				}				info = stringBuffer.toString();				log.info("bbchat 返回报文："+info);			}else{				log.error("bbchat 接口返回失败  httpStatusCode="+code);			}		} catch (Exception ex) {			ToftLogger.error("内部接口报文发送异常:" + ex.getMessage());			ex.printStackTrace();		} finally {			if (method != null) {				method.releaseConnection();			}		}		return info;	}