【发布时间】:2011-03-03 14:53:27
【问题描述】:
好的,我有一个 android 应用程序,其中包含一个表单、两个 EditText、一个微调器和一个登录按钮。用户从微调器中选择服务,输入他们的用户名和密码,然后单击登录。数据通过 POST 发送,返回一个响应,处理它,启动一个新的 WebView,加载从响应生成的 html 字符串,我有用户选择的任何服务的主页。
这一切都很好。现在,当用户单击链接时,无法找到登录信息,页面要求用户再次登录。我的登录会话被丢弃在某个地方,我不确定如何将信息从控制我的应用程序主要部分的类传递给刚刚启动 webview 活动的类。
表单登录按钮的 onClick 处理程序:
private class FormOnClickListener implements View.OnClickListener {
public void onClick(View v) {
String actionURL, user, pwd, user_field, pwd_field;
actionURL = "thePageURL";
user_field = "username"; //this changes based on selections in a spinner
pwd_field = "password"; //this changes based on selections in a spinner
user = "theUserLogin";
pwd = "theUserPassword";
List<NameValuePair> myList = new ArrayList<NameValuePair>();
myList.add(new BasicNameValuePair(user_field, user));
myList.add(new BasicNameValuePair(pwd_field, pwd));
HttpParams params = new BasicHttpParams();
DefaultHttpClient client = new DefaultHttpClient(params);
HttpPost post = new HttpPost(actionURL);
HttpResponse response = null;
BasicResponseHandler myHandler = new BasicResponseHandler();
String endResult = null;
try { post.setEntity(new UrlEncodedFormEntity(myList)); }
catch (UnsupportedEncodingException e) { e.printStackTrace(); }
try { response = client.execute(post); }
catch (ClientProtocolException e) { e.printStackTrace(); }
catch (IOException e) { e.printStackTrace(); }
try { endResult = myHandler.handleResponse(response); }
catch (HttpResponseException e) { e.printStackTrace(); }
catch (IOException e) { e.printStackTrace(); }
List<Cookie> cookies = client.getCookieStore().getCookies();
if (!cookies.isEmpty()) {
for (int i = 0; i < cookies.size(); i++) {
cookie = cookies.get(i);
}
}
Intent myWebViewIntent = new Intent(MsidePortal.this, MyWebView.class);
myWebViewIntent.putExtra("htmlString", endResult);
myWebViewIntent.putExtra("actionURL", actionURL);
startActivity(myWebViewIntent);
}
}
这里是处理响应显示的 WebView 类:
public class MyWebView extends android.app.Activity {
private class MyWebViewClient extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
view.loadUrl(url);
return true;
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.web);
MyWebViewClient myClient = new MyWebViewClient();
WebView webview = (WebView)findViewById(R.id.mainwebview);
webview.getSettings().setBuiltInZoomControls(true);
webview.getSettings().setJavaScriptEnabled(true);
webview.setWebViewClient(myClient);
Bundle extras = getIntent().getExtras();
if(extras != null)
{
// Get endResult
String htmlString = extras.getString("htmlString");
String actionURL = extras.getString("actionURL");
Cookie sessionCookie = MsidePortal.cookie;
CookieSyncManager.createInstance(this);
CookieManager cookieManager = CookieManager.getInstance();
if (sessionCookie != null) {
cookieManager.removeSessionCookie();
String cookieString = sessionCookie.getName()
+ "=" + sessionCookie.getValue()
+ "; domain=" + sessionCookie.getDomain();
cookieManager.setCookie(actionURL, cookieString);
CookieSyncManager.getInstance().sync();
}
webview.loadDataWithBaseURL(actionURL, htmlString, "text/html", "utf-8", actionURL);}
}
}
}
我在实施该 cookie 解决方案方面取得了不同程度的成功。它似乎适用于我登录的一项服务,我知道将 cookie 保留在服务器上(旧的、过时的,但它可以工作,他们不想更改它。)我现在尝试的服务要求用户保留cookie 在他们的本地机器上,并且它不适用于此设置。
有什么建议吗?
【问题讨论】:
标签: android session cookies login webview