public static String requestByPost(String urlpath,String requestData) throws IOException{
// HTTP connection reuse which was buggy pre-froyo
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.FROYO) {
URL url = new URL(urlpath);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setConnectTimeout(TIMEOUT);
conn.setReadTimeout(TIMEOUT);
conn.setRequestMethod("POST");
conn.setDoOutput(true);
//需要设置 gzip的请求头 才可以获取Content-Encoding响应码
conn.setRequestProperty("Accept-Encoding", "gzip, deflate");
conn.connect();
String urlEncodedRequestStr = URLEncoder.encode(requestData,"utf-8");
String requestStr = "jsonStr="+urlEncodedRequestStr;
conn.getOutputStream().write(requestStr.getBytes("utf-8"));
conn.getOutputStream().flush();
conn.getOutputStream().close();
// //获取所有响应头字段
// Map< String,List< String>> map = conn.getHeaderFields();
// //遍历所有的响应头字段
// if(null!=map){
// for (String key : map.keySet()){
// System.out.println(key + "--->" + map.get(key));
// }
// }
String content_encode = conn.getContentEncoding();
System.out.println("content_encode:"+content_encode);
// int responseCode = conn.getResponseCode();
// System.out.println("responseCode:"+responseCode);
// if(responseCode != 200){
// String message = conn.getResponseMessage();
// throw new IOException("ResponseCode:"+responseCode+",Message:"+message);
// }//如果是gzip的压缩流 进行解压缩处理
if(null!=content_encode&&!"".equals(content_encode)&&content_encode.equals("gzip")){
GZIPInputStream in = new GZIPInputStream(conn.getInputStream());
if(in == null){
return "";
}
ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
int len ;
byte [] buffer = new byte[1024];
while((len=in.read(buffer))!= -1){
arrayOutputStream.write(buffer, 0, len);
}
in.close();
arrayOutputStream.close();
conn.disconnect();
str = new String(arrayOutputStream.toByteArray(),"utf-8");
//正常流处理
}else{
InputStream in = conn.getInputStream();
if(in == null){
return "";
}
ByteArrayOutputStream arrayOutputStream = new ByteArrayOutputStream();
int len ;
byte [] buffer = new byte[1024];
while((len=in.read(buffer))!= -1){
arrayOutputStream.write(buffer, 0, len);
}
in.close();
arrayOutputStream.close();
conn.disconnect();
str = new String(arrayOutputStream.toByteArray(),"utf-8");
}
return str;
}添加的注释是项目中实际遇到的问题，记下来小小总结下！
