android中的GET和POST请求如何添加HttpCookies？

Question

我正在使用 HttpCookies 来维护服务器上的在线会话。登录时，通过 POST 请求，我使用以下代码获取 cookie。

HttpPost  httpPost = new HttpPost(url);
CookieStore store =  ((DefaultHttpClient)client).getCookieStore();
        if(params != null)
            httpPost.setEntity(new UrlEncodedFormEntity(params));
        httpResponse = httpClient.execute(httpPost);

        cookies= httpClient.getCookieStore().getCookies();

        if(cookies.isEmpty())
        {
            Log.d("Cookies", "None!");
        }
        else
        {
            for (Cookie c : cookies) {
                Log.d("Cookies","Name ["+c.getName()+"] - Val ["+c.getValue()+"] - Domain ["+c.getDomain()+"] - Path ["+c.getPath()+"]");
                store.addCookie(c);
            }
        }

但问题是，我无法在下一个GET请求中附加cookies，以维持会话。我尝试了以下代码，但它不起作用。

HttpContext ctx = new BasicHttpContext();
store.addCookie(singleCookie);
ctx.setAttribute(ClientContext.COOKIE_STORE, store);
Log.d("Servicehandler", singleCookie.getValue());
HttpGet request = new HttpGet();
request.setURI(new URI(url));
HttpResponse r_response = client.execute(request, ctx);

Answer 1

一种方法，尽管这里的 cookie 是手动保存的（我不建议这样做）。

AbstractHttpClient client = new DefaultHttpClient();
        //setup url
        Uri.Builder uriBuilder = Uri.parse(mRestUrl).buildUpon();
        Uri uri = uriBuilder.build();
        // request is either HttpPost or HttpGet
        request.setURI(new URI(uri.toString()));

        // Here we add cookies to cookie store of a client 
        //(cookies saved manually)
        CookieStore cookieStore = client.getCookieStore();
        for (Cookie cookie : cookieList) {
            cookieStore.addCookie(cookie);
        }

        HttpResponse response = client.execute(request);
        //in case you want to save cookies manually
        cookieList = client.getCookieStore().getCookies();
        //response
        HttpEntity responseEntity = response.getEntity();

Answer 2

我会建议您使用 HttpUrlConnection class。是Google.

推荐的

HTTP cookie 是使用 HTTP headers 发送的。只需将 cookie 本身作为值提供给 "Cookie" header。就这样。发送带有请求的 cookie 只是向其添加一个新的 HTTP header:

URL url = new URL("http://www.alabala.com");
URLConnection connection = url.openConnection();
// set the cookie
connection.setRequestProperty("Cookie", "my-cookie-value");   
...
conn.getOutputStream();

Answer 3

在Apache的HttpClient中，是这样写的：

HttpMethod method = new GetMethod();
//method.getParams().setCookiePolicy(CookiePolicy.RFC_2109);
method.getParams().setCookiePolicy(CookiePolicy.IGNORE_COOKIES);
method.setRequestHeader("Cookie", "special-cookie=value");

如果您正在使用 HttpUrlConnection，也许您需要尝试：

conn.setRequestProperty("Cookie", "jsessionid=xxxxx;param1=a"); 
conn.connect();

Answer 4

好吧，我自己想出了答案。互联网上发布了不同的解决方案，但其中 none 提到的很清楚，因为我对后端开发一无所知。

在以下代码段中，假设您在上次响应中检索到一个 cookie（类似于 "w8rhn29wr208n4rc2mr29cmn2rn2m12"，一些随机值）。现在如果你想把它附加到下一个请求，你必须在请求中将它添加为 HEADER。 URL 请求中的 headers 的格式为 "some_key=some_value"。 "some_key" 实际上是在服务器端编程中定义的。对于同一请求中的多个 cookie，您必须在同一请求中附加多个 headers。

其余过程正常，关于附加 url、执行它并获得响应。

String url= "www.test.in/test_cookie_link";
HttpGet request = new HttpGet();
//cookie_received_in_last_response = w8rhn29wr208n4rc2mr29cmn2rn2m12
//add the cookie as header to the GET request
request.addHeader("cookie","my_key=" + cookie_received_in_last_response);
//attach the url to GET request
request.setURI(new URI(url));
//execute the request
HttpResponse r_response = client.execute(request);

android中的GET和POST请求如何添加HttpCookies？

How to add HttpCookies to GET and POST requests in android?

android

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