HTTP Error 414. The request URL is too long解决方法

原因：

出现这个错误的原因是你的url的长度太长了

对于http协议本身，url是没有长度限制的，但是对于浏览器和web服务器来说，鉴于性能等方面的考虑，对url进行了限制

解决方法：

注意：send1方法不能解决这个问题，send2才可以解决，send1加在这里是为了对比效果

	public static String send1(String msgUrl) throws IOException {

		// String temp = new String(sb.toString().getBytes("GBK"),"UTF-8");
		System.out.println("msgUrl:" + msgUrl);
		log.info("msgUrl:" + msgUrl);
		URL url = new URL(msgUrl);

		// 打开url连接
		HttpURLConnection connection = (HttpURLConnection) url.openConnection();

		// 设置url请求方式 ‘get’ 或者 ‘post’
		connection.setRequestMethod("POST");
		connection.setConnectTimeout(10000);

		// 发送
		InputStream is = url.openStream();

		// 转换返回值
		String returnStr = SenderUtils.convertStreamToString(is);

		// 返回结果为‘0，20140009090990,1，提交成功’ 发送成功 具体见说明文档
		log.info(returnStr);
		// 返回发送结果
		return returnStr;
	}

	public static String send2(String url, String param) throws Exception {

		URL localURL = new URL(url);
		URLConnection connection = localURL.openConnection();
		HttpURLConnection httpURLConnection = (HttpURLConnection) connection;

		httpURLConnection.setDoOutput(true);
		httpURLConnection.setRequestMethod("POST");
		httpURLConnection.setRequestProperty("Accept-Charset", "utf-8");
		httpURLConnection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
		httpURLConnection.setRequestProperty("Content-Length", String.valueOf(param.length()));
		httpURLConnection.setConnectTimeout(10000);

		OutputStream outputStream = null;
		OutputStreamWriter outputStreamWriter = null;
		InputStream inputStream = null;
		InputStreamReader inputStreamReader = null;
		BufferedReader reader = null;
		String resultBuffer = "";

		try {
			outputStream = httpURLConnection.getOutputStream();
			outputStreamWriter = new OutputStreamWriter(outputStream);

			outputStreamWriter.write(param.toString());
			outputStreamWriter.flush();

			if (httpURLConnection.getResponseCode() >= 300) {
				throw new Exception(
						"HTTP Request is not success, Response code is " + httpURLConnection.getResponseCode());
			}

			inputStream = httpURLConnection.getInputStream();
			resultBuffer = convertStreamToString(inputStream);
			System.out.println(resultBuffer);

		} catch (Exception e) {
			e.printStackTrace();
			log.error("SenderUtils.send message exception:" + e.getMessage());
		} finally {

			if (outputStreamWriter != null) {
				outputStreamWriter.close();
			}

			if (outputStream != null) {
				outputStream.close();
			}

			if (reader != null) {
				reader.close();
			}

			if (inputStreamReader != null) {
				inputStreamReader.close();
			}

			if (inputStream != null) {
				inputStream.close();
			}

		}

		return resultBuffer;
	}

	public static String convertStreamToString(InputStream is) {
		StringBuilder sb1 = new StringBuilder();
		byte[] bytes = new byte[4096];
		int size = 0;

		try {
			while ((size = is.read(bytes)) > 0) {
				String str = new String(bytes, 0, size, "UTF-8");
				sb1.append(str);
			}
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			try {
				is.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return sb1.toString();
	}