HttpConnection通信

/**
	 * 以URL方式发送数据
	 * 
	 * @param urlStr
	 *            发送地址
	 * @param contentStr
	 *            发送内容
	 * @param charset
	 *            发送字符集
	 * @param sResult
	 *            返回数据Buffer
	 * @return boolean 发送是否成功
	 */
	public boolean sendStrOfPost(String urlStr, String contentStr, String charset, StringBuffer sResult) {
		boolean bResult = false;
		String charsetName = charset;
		URL url = null;
		HttpURLConnection httpConnection = null;
		InputStream httpIS = null;
		java.io.BufferedReader http_reader = null;
		try {
			url = new URL(urlStr);
			httpConnection = (HttpURLConnection) url.openConnection();

			// 设置连接主机超时(单位:毫秒)
			httpConnection.setConnectTimeout(Util.getInstance().getIntFromProperties("c1.timeout.httpconn"));
			// 设置从主机读取数据超时(单位:毫秒)
			httpConnection.setReadTimeout(Util.getInstance().getIntFromProperties("c1.timeout.httpread"));

			httpConnection.setRequestMethod("POST"); // POST方式提交数据
			httpConnection.setDoOutput(true);
			httpConnection.setRequestProperty("Content-Length", String.valueOf(contentStr.getBytes().length));
			PrintWriter out = null;
			out = new PrintWriter(new OutputStreamWriter(httpConnection.getOutputStream(), charsetName));// 此处改动
			// 发送请求
			out.print(contentStr);
			out.flush();
			out.close();
			int responseCode = httpConnection.getResponseCode();
			if (responseCode == HttpURLConnection.HTTP_OK) {
				// 发送正常
				bResult = true;

				// 读取数据
				httpIS = httpConnection.getInputStream();
				http_reader = new java.io.BufferedReader(new java.io.InputStreamReader(httpIS, charsetName));
				String line = null;
				while ((line = http_reader.readLine()) != null) {
					if (sResult.length() > 0) {
						sResult.append("\n");
					}
					sResult.append(line);
				}
				logger.info("[URL][response][success]" + sResult);
			} else {
				logger.info("[URL][response][failure][code : " + responseCode + " ]");
			}
		} catch (IOException e) {
			logger.error("[HttpUtil]sendStrOfPost error", e);
		}
		finally {
			try {
				if (http_reader != null)
					http_reader.close();
				if (httpIS != null)
					httpIS.close();
				if (httpConnection != null)
					httpConnection.disconnect();
			} catch (IOException e) {
				logger.error("[HttpUtil]finally error", e);
			}
		}

		return bResult;
	}