HttpURLConnection 连接网络出现 EOFException

五柳--先生 2014-12-01 02:58:45

HttpURLConnection 连接网络时候出现 EOFException这个异常，看完之后没有一个比较好的有效的解决办法

	public String getRequestResult(String requestUrl,

			Map<String, String> parameter) throws TimeoutException,

			IOException, EOFException {



		String json = "";

		if (parameter != null && !parameter.isEmpty()) {

			for (Map.Entry<String, String> entry : parameter.entrySet()) {

				// 获取对应value

				json = entry.getValue();

			}

		}



		// try{

		LogUtil.d("requestUrl = " + requestUrl);

		parameter.clear();

		parameter.put("json", json);

		json.replace(" ", "");

		// Post请求的url，与get不同的是不需要带参数

		URL postUrl = new URL(requestUrl);

		// 打开连接

		HttpURLConnection mHttpURLConn = (HttpURLConnection) postUrl

				.openConnection();

		// 设置是否向connection输出，因为这个是post请求，参数要放在http正文内，因此需要设为true

		mHttpURLConn.setDoOutput(true);

		// Read from the connection. Default is true.

		mHttpURLConn.setDoInput(true);

		mHttpURLConn.setRequestMethod("POST");

		mHttpURLConn.setRequestProperty("Accept-Encoding", "");

		// Post 请求不能使用缓存

		mHttpURLConn.setUseCaches(false);

		mHttpURLConn.setInstanceFollowRedirects(true);

		mHttpURLConn.setConnectTimeout(connectTimeout);

		mHttpURLConn.setReadTimeout(readTimeout);

		// 配置本次连接的Content-type，配置为application/x-www-form-urlencoded的

		// 意思是正文是urlencoded编码过的form参数，下面我们可以看到我们对正文内容使用URLEncoder.encode进行编码

		mHttpURLConn.setRequestProperty("Content-Type",

				"application/x-www-form-urlencoded");

		mHttpURLConn.setRequestProperty("Connection", "keep-alive");

		if (Build.VERSION.SDK != null && Build.VERSION.SDK_INT > 13) {

			mHttpURLConn.setRequestProperty("Connection", "close");

		}

		// 连接，从postUrl.openConnection()至此的配置必须要在connect之前完成，

		// 要注意的是connection.getOutputStream会隐含的进行connect。

		mHttpURLConn.connect();

		DataOutputStream out = new DataOutputStream(

				mHttpURLConn.getOutputStream());

		String content = "json=" + URLEncoder.encode(json, "UTF-8");

		// DataOutputStream.writeBytes将字符串中的16位的unicode字符以8位的字符形式写到流里面

		out.writeBytes(content);

		out.flush();

		out.close();

		System.setProperty("http.keepAlive", "false");

		LogUtil.e(

				"",

				"mHttpURLConn.getResponseCode() = "

						+ mHttpURLConn.getResponseCode());



		if (mHttpURLConn.getResponseCode() == HttpURLConnection.HTTP_OK) {

			InputStream is = mHttpURLConn.getInputStream();

			BufferedReader in = new BufferedReader(new InputStreamReader(is));

			StringBuffer buffer = new StringBuffer();

			String line = "";

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

				buffer.append(line);

			}

			in.close();

			is.close();

			mHttpURLConn.disconnect();

			if (buffer.toString().length() == 0) {

				return null;

			}

			LogUtil.d("request return  = " + buffer.toString());

			return buffer.toString();

		}



		return null;

	}