Android OutputStreamWriter's flush method throws IOException
<span style="white-space: pre;"> Android开发弱网络客户端的时候,需要给服务器发送HTTP POST请求,首先进行设置</span>
<span style="white-space: pre;"> </span>URL url = new URL(urlString); connection = (HttpURLConnection) url.openConnection(); connection.setConnectTimeout(Constants.CONNECTION_TIMEOUT); connection.setReadTimeout(Constants.IO_TIMEOUT); connection.setDoOutput(true); connection.setRequestMethod("POST"); connection.setUseCaches(false); connection.setRequestProperty("Content-Type", <span style="white-space: pre;"> </span>"application/json:charset=utf-8"); connection.setDoInput(true); connection.setDoOutput(true);
<span> connection.connect();</span>
<span style="white-space: pre;"><span style="white-space: pre;"> </span>osw = new OutputStreamWriter(connection.getOutputStream());</span>
<span style="white-space:pre"> BufferedReader reader = new BufferedReader( <span style="white-space:pre"> </span>new InputStreamReader(conn.getInputStream())); </span><span style="white-space:pre"> </span>//本语句是造成IOException的原因 (1)
然后写入数据
String requestContent = "[" + "{\"ipaddress\":\"" + localIp + "\"," + "\"nettype\":\"" + (netType) + "\"," + "\"envtype\":\"" + envType + "\"}" + "]"; osw.write(requestContent); osw.flush(); osw.close();报了IOException的错误,此时HTTP的写内容还没完毕,就在代码(1)处开了一个BufferReader,所以造成了IOException。
还有其它人遇到同样的问题,但是原因不一样,请参考
http://stackoverflow.com/questions/4736042/outputstreamwriters-flush-method-throws-ioexception-when-trying-to-write-chines
郑重声明:本站内容如果来自互联网及其他传播媒体,其版权均属原媒体及文章作者所有。转载目的在于传递更多信息及用于网络分享,并不代表本站赞同其观点和对其真实性负责,也不构成任何其他建议。