我的HttpClient,HttpPost或HttpGet方法只运行一次。我可以第一次成功登录响应中的get html,但是当我尝试第二次登录时,html是空白的,我甚至没有得到回复。怎么了?
public void parseDoc() {
new Thread(new Runnable() {
@Override
public void run() {
sting.loadData("<p></p>", "text/html", null);
HttpParams params = new BasicHttpParams();
HttpClientParams.setRedirecting(params, true);
httpclient = new DefaultHttpClient();
httppost = new HttpPost(
"https://secure.groupfusion.net/processlogin.php");
String HTML = "";
try {
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
3);
nameValuePairs
.add(new BasicNameValuePair(
"referral_page",
"/modules/gradebook/ui/gradebook.phtml?type=student_view&jli=t&jli=t&jli=t&jli=t&jli=t&jli=t&printable=FALSE&portrait_or_landscape=portrait"));
nameValuePairs.add(new BasicNameValuePair("currDomain",
"beardenhs.knoxschools.org"));
nameValuePairs
.add(new BasicNameValuePair("username", user));
nameValuePairs
.add(new BasicNameValuePair("password", pass));
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpclient.execute(httppost);
HTML = EntityUtils.toString(response.getEntity());
Document doc = Jsoup.parse(HTML);
Element link = doc.select("a").first();
linkHref = link.attr("href");
HttpGet request = new HttpGet();
try {
request.setURI(new URI(linkHref));
} catch (URISyntaxException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
response = httpclient.execute(request);
InputStream in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(
new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
str.append(line);
}
in.close();
HTML = str.toString();
doc = Jsoup.parse(HTML);
Elements divs = doc.getElementsByTag("tbody");
for (Element d : divs) {
if (i == 2) {
finishGrades();
f++;
break;
}
i++;
ggg = d.html();
}
} catch (ClientProtocolException e) {
} catch (IOException e) {
}
}
}).start();
}
答案 0 :(得分:2)
您是否有任何理由不关闭或释放http连接?我问,因为我倾向于关闭/释放我的连接。当我正在尝试长轮询服务器时。这是android编程的工作方式吗?
android是单线程还是多线程架构?当有两个线程试图打开连接时会发生什么?第一个线程是否会阻塞第二个线程,尤其是当第一个线程拒绝放弃连接时?
如果您在每个请求的预期结束时关闭或释放连接会怎样?
登录/退出时意味着什么。注销会释放/关闭连接吗?您是否专门注销以便服务器关闭连接或连接是否仍然存在?