HttpClient4.2.1使用问题

恋小云 2017-11-17 10:33:28

我是新手，客户端发送post请求到服务端，结果返回null，各位大神们帮忙看看客户端发送请求的代码有问题吗.?

public static OnlineServerResult onlineCompare(String name, String cardno, Integer businessTypes, 

			String picNameR, String picNameT, OnlineServerConfig onlineServerConfig) 

					throws IOException {

		lock.writeLock().lock();

		String transactionID = getTransactionId(onlineServerConfig.getSourceCode());

		lock.writeLock().unlock();

		Logger logger = Logger.getLogger("comparelog");

		logger.info("本次请求流水号transactionID:" + transactionID);

		JsonObject reqParam = new JsonObject();

		reqParam.addProperty("busiCode", onlineServerConfig.getBusiCode());

		reqParam.addProperty("sourceCode", onlineServerConfig.getSourceCode());

		reqParam.addProperty("targetCode", onlineServerConfig.getTargetCode());

		reqParam.addProperty("version", onlineServerConfig.getVersion());

		reqParam.addProperty("transactionID", transactionID);



		JsonObject reqInfo = new JsonObject();

		reqInfo.addProperty("userName", onlineServerConfig.getUserName());

		reqInfo.addProperty("password", onlineServerConfig.getPassword());

		reqInfo.addProperty("billId", "");

		reqInfo.addProperty("custName", name);

		reqInfo.addProperty("custCertNo", cardno);

		reqInfo.addProperty("busiType", "1");

		String reqInfoStr = null;

		try {

			RealNameMsDesPlus ms = new RealNameMsDesPlus();

			reqInfoStr = ms.encrypt(reqInfo.toString());

		} catch (Exception e) {

			logger.error("请求json参数加密失败", e);

			e.printStackTrace();

			return null;

		}

		logger.info("reqInfo:" + reqInfo);

		reqParam.addProperty("reqInfo", reqInfoStr);



		JsonObject images = new JsonObject();

		images.addProperty("picNameR", picNameR);

		images.addProperty("picNameT", picNameT);

		reqParam.add("images", images);

		//json参数

		JsonObject param = new JsonObject();

		param.add("reqParam", reqParam);

		

		logger.info("向在线公司发送请求参数:" + param);

		String result = HttpUtil.doPost(onlineServerConfig.getUrl(), param.toString(),"application/json", "utf-8");

		logger.info("在线公司响应json：" + result);

		return new Gson().fromJson(result, OnlineServerResult.class);

	}

HttpUtil.java

public static String doPost(String url, String jsonData, String contentType,  String charset) 

    		throws IOException {

    	HttpClient httpClient = getHttpClient();

    	HttpPost httpPost = new HttpPost(url);

    	//body参数

		StringEntity s = new StringEntity(jsonData);

		s.setContentEncoding(charset);

		if (contentType != null && !"".equals(contentType)) {

			s.setContentType(contentType);//发送数据需要设置contentType

		}

		HttpResponse response = httpClient.execute(httpPost);

		HttpEntity entity = response.getEntity();

		String result = EntityUtils.toString(entity, charset);

		httpPost.releaseConnection();

		return result;

    }