Android GZIP请求XML
我有我想要转换的代码,以便以GZIP格式从服务器获取xml。我不确定我将如何发送我的请求,以查看编码是否被接受,以及什么不被接受。下面是一些代码:Android GZIP请求XML,android,gzip,Android,Gzip,我有我想要转换的代码,以便以GZIP格式从服务器获取xml。我不确定我将如何发送我的请求,以查看编码是否被接受,以及什么不被接受。下面是一些代码: public void parse(String locCode, int isMetric, String langId) throws IOException, ParserConfigurationException, SAXException { //set member variables this.locCode
public void parse(String locCode, int isMetric, String langId) throws IOException, ParserConfigurationException, SAXException {
//set member variables
this.locCode = locCode;
this.isMetric = isMetric;
this.langId = langId;
wdm.metric = isMetric;
try {
mCounter++;
//create input stream from url
InputStream is = getInputStream(this.locCode, this.isMetric, this.langId);
InputSource inputSource = new InputSource(is);
inputSource.setEncoding(ENCODING_TYPE);
//create sax parser and xml reader
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
mCounter = 0;
//pass in instance of FeedParser
xr.setContentHandler(new WeatherFeedParser());
xr.parse(inputSource);
is.close();
} catch (SocketException e){
if (mCounter < 3){
parse(locCode, isMetric, langId);
}
else e.printStackTrace();
} catch (UnknownHostException e){
if (mCounter < 3){
parse(locCode, isMetric, langId);
}
else e.printStackTrace();
}
}
private static final InputStream getInputStream(String locCode, int isMetric, String langId) throws IOException {
//build url
String addr = FEED_URL + LOCATION + cleanupInput(locCode) + "&" + METRIC + isMetric + "&" + LANG_ID + langId;
URL url = new URL(addr);
//create connection
mCon = url.openConnection();
mCon.setConnectTimeout((int)ACCUWX.Time._15_SECONDS);
mCon.setReadTimeout((int)ACCUWX.Time._15_SECONDS);
mCon.connect();
return mCon.getInputStream();
}
第二个代码清单将替换第一个清单中的
getInputStream()
方法的大部分内容。使用gzip解压缩实体查看第二个代码示例的替代实现。
HttpUriRequest request = new HttpGet(url);
request.addHeader("Accept-Encoding", "gzip");
// ...
httpClient.execute(request);
Check response for content encoding:
InputStream instream = response.getEntity().getContent();
Header contentEncoding = response.getFirstHeader("Content-Encoding");
if (contentEncoding != null && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
instream = new GZIPInputStream(instream);
}