java – HttpClient身份验证,保持登录状态

所以我的目标是使用httpclient登录论坛,然后在该论坛上发布回复帖子.我登录很好,但是当我在帖子上发帖时它说我没有登录.有什么想法吗？我已经尝试使用cookie构建httpClient,但是在我登录后我查看了它们并且没有任何内容.所以我尝试使用相同的httpclient进行两次调用,但仍然无法正常工作.

String username,password,threadNum,bumpMessage,bumpTimer;
HttpClient http;

    public void login() throws ClientProtocolException,IOException,NoSuchAlgorithmException
    {

        this.http = HttpClients.createDefault();



        HttpPost httppost = new HttpPost("http://www.sythe.org/login.php?do=login");


        // Request parameters and other properties.
        List<NameValuePair> params = new ArrayList<NameValuePair>(2);
        params.add(new BasicNameValuePair("do","login"));
        params.add(new BasicNameValuePair("url",""));
        params.add(new BasicNameValuePair("vb_login_md5password",this.password));
        params.add(new BasicNameValuePair("vb_login_md5password_utf",this.password));
        params.add(new BasicNameValuePair("s",""));
        params.add(new BasicNameValuePair("vb_login_username",this.username));
        params.add(new BasicNameValuePair("vb_login_password",""));



        httppost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));

        //Execute and get the response.
        HttpResponse response = http.execute(httppost);



        HttpEntity entity = response.getEntity();

    }

    public void bump() throws ClientProtocolException,IOException
    {

        HttpPost httppost = new HttpPost("http://www.sythe.org/newreply.php?do=postreply&t=" + this.threadNum);

        // Request parameters and other properties.
        List<NameValuePair> params = new ArrayList<NameValuePair>(2);
        params.add(new BasicNameValuePair("title",""));
        params.add(new BasicNameValuePair("message",this.bumpMessage));
        params.add(new BasicNameValuePair("wysiwyg","0"));
        params.add(new BasicNameValuePair("iconid","0"));
        params.add(new BasicNameValuePair("s",""));
        params.add(new BasicNameValuePair("posthash",""));
        params.add(new BasicNameValuePair("poststarttime",""));
        params.add(new BasicNameValuePair("loggedinuser",""));
        params.add(new BasicNameValuePair("multiquoteempty",""));
        params.add(new BasicNameValuePair("sbutton","Submit Reply"));
        params.add(new BasicNameValuePair("signature","1"));
        params.add(new BasicNameValuePair("parseurl","1"));
        params.add(new BasicNameValuePair("emailupdate","9999"));



        httppost.setEntity(new UrlEncodedFormEntity(params,"UTF-8"));

        //Execute and get the response.
        HttpResponse response = this.http.execute(httppost);

        HttpEntity entity = response.getEntity();

        PrintWriter writer = new PrintWriter("filename.html","UTF-8");

        if (entity != null) {
            InputStream instream = entity.getContent();
            String line;
            BufferedReader br = null;

            try {
                br = new BufferedReader(new InputStreamReader(instream));
                while ((line = br.readLine()) != null) {
                    writer.println(line);
                }
            } finally {
                instream.close();
            }
        }
        writer.close();
    }
}

编辑：我在python中工作了！

jar = cookielib.FileCookieJar("cookies")
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(jar))
opener.addheaders = [('User-agent','Mozilla/5.0')]

def login():
    logindata = urllib.urlencode({'do' : 'login','url':'','vb_login_md5password' : password,'vb_login_md5password_utf' : password,'s' : '','vb_login_username': username,'vb_login_password': '' })

    response = opener.open("http://www.sythe.org/login.php?do=login",logindata)



def bumpThread():

    if(username == "Not set" or password == "Not set"):
        print "Please setup password!"
        return

    if(threadNum == 0 or message == "Not set" or bumpTime == 0):
        print threadNum
        print message
        print "Please setup thread!"
        return

    logindata = urllib.urlencode({'title' : 'The Thread','message' : message,'wysiwyg' : '0','iconid' : '0','do' : 'postreply','t' : threadNum,'p' : '','posthash' : '','poststarttime' : '','loggedinuser' : '','multiquoteempty' : '','sbutton' : 'Submit Reply','signature' : '1','parseurl' : '1','emailupdate' : '9999' })

    thread = opener.open("http://www.sythe.org/newreply.php?do=postreply&t=" + str(threadNum),logindata)

//////// 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();
}