我有一个类将请求发送到 web 服务
public class JSONParser {
CookieStore store = new BasicCookieStore();
static InputStream is = null;
static JSONObject jObj = null;
static String json = "";
private static final DefaultHttpClient httpClient = new DefaultHttpClient() ;
public static DefaultHttpClient getInstance() { return httpClient; }
public JSONObject getJSONFromUrl(String url, List<NameValuePair> params) {
// Making HTTP request
try {
CookieStore cookieStore = new BasicCookieStore();
// Create local HTTP context
HttpContext localContext = new BasicHttpContext();
// Bind custom cookie store to the local context
localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);
DefaultHttpClient httpClient = JSONParser.getInstance();
List<Cookie> cookies = httpClient.getCookieStore().getCookies();
httpClient.getParams().setParameter(CoreProtocolPNames.USER_AGENT, "Android-AEApp,ID=2435743");
httpClient.getParams().setParameter(ClientPNames.COOKIE_POLICY, CookiePolicy.RFC_2109);
HttpPost httpPost = new HttpPost(url);
httpPost.setEntity(new UrlEncodedFormEntity(params));
httpPost.setHeader("User-Agent","Android-AEApp,ID=2435743");
cookies = httpClient.getCookieStore().getCookies();
httpPost.setHeader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
httpPost.setHeader("Cookie", "PHPSESSID=lc89a2uu0rj6t2p219gc2cq4i2; path=/");
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
cookies = httpClient.getCookieStore().getCookies();
if (cookies.isEmpty()) {
for (Cookie a : cookies)
cookieStore.addCookie(a);
} else {
for (Cookie a : cookies) {
cookieStore.addCookie(a);
System.out.println("- " + a.getValue().toString());
}
}
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
我第一次通过
发送 cookiehttpPost.setHeader("Cookie", "PHPSESSID=lc89a2uu0rj6t2p219gc2cq4i2; path=/");
然后我为新请求获取 cookie。当我尝试更新它们时,它会使用旧的。如果我的 cookie 被服务器更改了,我该如何更新它们?
最佳答案
问题解决了。我将 Singleton 用于我的 Cookie 的 ArrayList。它看起来像这样:
public class CookieStorage {
private ArrayList<Object> arrayList;
private static CookieStorage instance;
private CookieStorage(){
arrayList = new ArrayList<Object>();
}
public static CookieStorage getInstance(){
if (instance == null){
instance = new CookieStorage();
}
return instance;
}
public ArrayList<Object> getArrayList() {
return arrayList;
}
@Override
public String toString()
{
return getArrayList().toString();
}
}
这就是我在 RestClient 类中使用它的方式:
if (CookieStorage.getInstance().getArrayList().isEmpty())
CookieStorage.getInstance().getArrayList().add("PHPSESSID=lc89a2uu0rj6t2p219gc2cq4i2");
RestClient.this.AddHeader("Cookie", CookieStorage.getInstance().getArrayList().get(0).toString());
请求执行后:
httpResponse = client.execute(request);
if (httpResponse.getLastHeader("Set-Cookie")!=null)
{
CookieStorage.getInstance().getArrayList().remove(0);
CookieStorage.getInstance().getArrayList().add(httpResponse.getLastHeader("Set-Cookie").getValue());
}
关于android - 使用 httpPost 和 httpclient 保存 cookie,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/11955722/