Java中的SPOJ登录

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

import java.util.ArrayList;
import java.util.List;

public class SPOJLogin {
    public static void main(String[] args) {
        String username = "your_username";
        String password = "your_password";

        HttpClient httpClient = HttpClientBuilder.create().build();
        HttpPost httpPost = new HttpPost("https://www.spoj.com/login");

        // 构建登录请求参数
        List<NameValuePair> params = new ArrayList<>();
        params.add(new BasicNameValuePair("login_user", username));
        params.add(new BasicNameValuePair("password", password));

        try {
            httpPost.setEntity(new UrlEncodedFormEntity(params));

            // 发送登录请求
            HttpResponse response = httpClient.execute(httpPost);
            HttpEntity entity = response.getEntity();

            // 解析登录响应
            String responseBody = EntityUtils.toString(entity);
            // 处理登录结果
            if (responseBody.contains("Login successful")) {
                System.out.println("登录成功！");
                // 其他处理逻辑...
            } else {
                System.out.println("登录失败！");
                // 其他处理逻辑...
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}