java - HttpClient 不保持登录状态

Question

使用 HttpClient 登录后，我正在尝试浏览网站。

我首先定义一个 HttpClient 的实例和一个 cookie 存储：

public HttpClient httpclient = new DefaultHttpClient();
public CookieStore cookieStore = new BasicCookieStore();
public HttpContext localContext = new BasicHttpContext();
localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);

在一个（android）BackgroundTask 中，我成功登录了该网站。

HttpPost httppost = new HttpPost("http://www.deeproute.com/deeproute/default.asp");
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("cookieexists","false"));
nameValuePairs.add(new BasicNameValuePair("name", mUser));
nameValuePairs.add(new BasicNameValuePair("password", mPassword));
nameValuePairs.add(new BasicNameValuePair("subbera", "Login"));

httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
res = httpclient.execute(httppost, localContext);

在此之后，在另一个 BackgroundTask 中，我尝试连接到同一网站上的不同页面：

HttpGet rosterGet = new HttpGet("http://deeproute.com/deeproute/?sel=rosterlook&myleagueno=6&myteamno=12");
res = httpclient.execute(rosterGet, localContext);

但是，当我连接到此页面时，我不再登录。我看了看，成功登录后 cookie 仍然存在，所以我不知所措。

编辑：为了记录，这个网站在普通浏览器上完全正常运行。

编辑 2：响应 Aaron 在下面的回答，cookie 似乎正在保存，因为如果在第一个请求之后，我会这样做：

List<Cookie> cookies = cookieStore.getCookies();
    int cookieSize = cookies.size();

    for (int i = 0; i < cookieSize; i++) {
        Log.v(TAG, "Cookie " + i + "name: "
                                + cookies.get(i).getName());
        Log.v(TAG, "Cookie " + i + "value: "
                                + cookies.get(i).getValue());
    }

我取回了四个 cookie，其中一个存储了我的用户名。如果我在第二个请求后做同样的事情，我实际上会得到 6 个 cookie，因为显然它给了我一个新的会话 ID。这似乎是问题的根源，但我不知道如何解决它。

在第一个请求之后，这是我的会话 ID cookie：

name: ASPSESSIONIDSCSCSBCS
value: GBAJALJBOGKBFLAELPNKEDOE

在第二个请求之后，我有两个会话 ID cookie：

name: ASPSESSIONIDSCSCSBCS
value: GBAJALJBOGKBFLAELPNKEDOE

name: ASPSESSIONIDSCSCSBCS
value: MBAJALJBDBOKPEHNCDDFOCBC

score 0 · Accepted Answer

我遇到了同样的问题。我实现了 cookie，但它仍然没有保持登录状态。我终于让它工作了，所以我发布了这段代码，希望能帮助其他人解决同样的问题。

以下是 Apache 关于如何登录和检索所有 cookie 的示例：https ://hc.apache.org/httpcomponents-client-ga/httpclient/examples/org/apache/http/examples/client/ClientFormLogin.java

您还可以在此处查看有关“HTTP 状态管理”的 Apache HttpClient 文档：https ://hc.apache.org/httpcomponents-client-ga/tutorial/html/statemgmt.html

这是我的登录功能的实现方式：

使用设置代理CredentialsProvider
使用设置cookieBasicCookieStore
使用构建自定义 HttpClientCloseableHttpClient
设置POST 请求：目标、主机、参数、路径
执行POST 请求/login.html以登录。
执行 GET 请求以/user查看我们是否正确登录

打印响应的状态码

//////// SETUP
//Setup Proxy (If needed)
    CredentialsProvider credsProvider = new BasicCredentialsProvider();
    credsProvider.setCredentials(
            new AuthScope("proxy.mycompany", 8080),
            new UsernamePasswordCredentials("my_username", "my_password"));
//Setup Cookies
    BasicCookieStore cookieStore = new BasicCookieStore();

//Build HttpClient
    CloseableHttpClient httpclient = HttpClients.custom()
            .setDefaultCredentialsProvider(credsProvider)
            .setDefaultCookieStore(cookieStore)
            .build();
    HttpHost target = new HttpHost("www.mycompany.com", 80, "http");
    HttpHost proxy = new HttpHost("proxy.mycompany", 8080);
    RequestConfig config = RequestConfig.custom()
            .setProxy(proxy)
            .build();
try {
//////// LOGIN REQUEST, POST TO /login.html
//Start POST Request
    HttpPost httppost = new HttpPost('/login.html');
//Add parameters to POST Request
    List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();   
    nameValuePairs.add(new BasicNameValuePair('username','my_username'));  
    nameValuePairs.add(new BasicNameValuePair('password','my_password'));
    httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
//Set Config for POST Request
    httppost.setConfig(config);
//Execute POST Request
    httpresponse = httpclient.execute(target, httppost);
//Print Response Code
    try {
       System.out.println("Status Code: "+httpresponse.getStatusLine().getStatusCode());
    } finally {
//Close HTTP Reponse (must be in a 'finally' block)
        httpresponse.close();
    }

//////// CHECK LOGIN STATUS, GET TO /user
//Start GET Request
    HttpGet httpget = new HttpGet('/user');
//Set Config for GET Request
    httpget.setConfig(config);
//Execute GET Request
    httpresponse = httpclient.execute(target, httpget);
//Print Response Code
    try {
       System.out.println("Status Code: "+httpresponse.getStatusLine().getStatusCode());
    } finally {
//Close HTTP Reponse (must be in a 'finally' block)
        httpresponse.close();
    }
} finally {
    httpclient.close();
}

score -1 · Accepted Answer

看起来不像您从初始请求中保存的 cookie，因此下一个请求中没有任何内容可以告诉您已登录的站点。您需要一个 cookie 容器。去谷歌上查询。

java - HttpClient 不保持登录状态

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