如何使用java登录此站点？

我试图使用HttpClient登录此站点：

经过一整天的尝试，我就是无法获得登录页面。这是我的代码：

public class SimpleClient {
    static String code = "";
    static String captchaUrl= "https://passport.wiitrans.cn/code";

    public static void logIn() throws IOException {
        CloseableHttpClient httpclient = HttpClients.createDefault();
//        HttpGet httpGet = new HttpGet("https://passport.wiitrans.cn/");
        List<NameValuePair> formparams = new ArrayList<NameValuePair>();
        formparams.add(new BasicNameValuePair("account", xxxxx));
        formparams.add(new BasicNameValuePair("password", xxxxx));
        formparams.add(new BasicNameValuePair("code", code));
        formparams.add(new BasicNameValuePair("autologin", "1"));
        UrlEncodedFormEntity entity1 = new UrlEncodedFormEntity(formparams, "UTF-8");
        HttpPost httppost = new HttpPost("https://passport.wiitrans.cn/");
        httppost.setEntity(entity1);
        HttpResponse response = httpclient.execute(httppost);
        String set_cookie = response.getFirstHeader("Set-Cookie").getValue();
        System.out.println(set_cookie.substring(0, set_cookie.indexOf(";")));
        System.out.println("+++++++++++++++++++++++++++++++++++++++++++++=");
        System.out.println("+++++++++++++++++++++++++++++++++++++++++++++=");
        System.out.println("+++++++++++++++++++++++++++++++++++++++++++++=");

        HttpGet httpget = new HttpGet("https://translator.wiitrans.cn/");
        httpget.setHeader("Cookie", set_cookie);
        HttpResponse response2 = httpclient.execute(httpget);
        HttpEntity entity2 = response2.getEntity();
        BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(entity2.getContent()));
        String line = "";
        while((line = bufferedReader.readLine()) != null){
            System.out.println(line);
        }
    }
    public static void main(String[] args){
        code = Captcha.getCaptcha(captchaUrl);
        try {
            logIn();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

公共类SimpleClient{
静态字符串代码=”；
静态字符串captchaUrl=”https://passport.wiitrans.cn/code";
public static void logIn（）引发IOException{
CloseableHttpClient httpclient=HttpClients.createDefault（）；
//HttpGet HttpGet=新的HttpGet（“https://passport.wiitrans.cn/");
List formparams=new ArrayList（）；
formparams.add（新的BasicNameValuePair（“账户”，xxxxx））；
formparams.add（新的BasicNameValuePair（“密码”，xxxxx））；
formparams.add（新的BasicNameValuePair（“代码”，代码））；
formparams.add（新的BasicNameValuePair（“自动登录”，“1”））；
UrlEncodedFormEntity entity1=新的UrlEncodedFormEntity（formparams，“UTF-8”）；
HttpPost HttpPost=新的HttpPost（“https://passport.wiitrans.cn/");
httppost.setEntity（entity1）；
HttpResponse response=httpclient.execute（httppost）；
字符串set_cookie=response.getFirstHeader（“set cookie”）.getValue（）；
System.out.println（set_cookie.substring（0，set_cookie.indexOf（“；”））；
System.out.println（“++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++=”；
System.out.println（“++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++=”；
System.out.println（“++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++=”；
HttpGet HttpGet=新的HttpGet（“https://translator.wiitrans.cn/");
setHeader（“Cookie”，set_Cookie）；
HttpResponse response2=httpclient.execute（httpget）；
HttpEntity entity2=response2.getEntity（）；
BufferedReader BufferedReader=new BufferedReader（new InputStreamReader（entity2.getContent（））；
字符串行=”；
而（（line=bufferedReader.readLine（））！=null）{
系统输出打印项次（行）；
}
}
公共静态void main（字符串[]args）{
代码=验证码。获取验证码（captchaUrl）；
试一试{
登录（）；
}捕获（IOE异常）{
e、 printStackTrace（）；
}
}
}

---

验证码是手动下载和输入的，有人能帮我解决这个问题吗？

您如何知道要在登录请求中发送的验证码？编辑：验证码是手动下载和输入的。登录url是

https://passport.wiitrans.cn/Login/login

。您应该在表单数据中发送

帐户

、

密码

（加密）、

代码

和

自动登录

code

是图像中显示的验证码。不知道如何从验证码图像获取登录代码