Cookie ApIJava示例代码

以下是一个Java示例代码，演示如何使用Cookie API设置和获取Cookie值：

// 导入必要的类
import java.net.HttpURLConnection;
import java.net.URL;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.List;
import java.util.Map;
import java.util.Iterator;

public class CookieExample {
    public static void main(String[] args) throws IOException {
        // 创建URL对象
        URL url = new URL("http://www.example.com");

        // 打开连接
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();

        // 设置Cookie值
        String cookieVal = "your_cookie_value";
        connection.setRequestProperty("Cookie", cookieVal);

        // 发送请求
        connection.connect();

        // 获取响应头中的Cookie值
        Map<String, List<String>> headerFields = connection.getHeaderFields();
        List<String> cookiesHeader = headerFields.get("Set-Cookie");
        if (cookiesHeader != null) {
            for (String cookie : cookiesHeader) {
                // 处理每个Cookie值
                System.out.println(cookie);
            }
        }

        // 关闭连接
        connection.disconnect();
    }
}