超链接或如何在java servlet中创建url。

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

public class MyServlet extends HttpServlet {
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // 获取当前请求的URL和URI
        StringBuffer url = request.getRequestURL();
        String uri = request.getRequestURI();

        // 创建URL
        String newUrl = url.toString() + "?param1=value1&param2=value2";

        // 对URL进行编码
        String encodedUrl = response.encodeURL(newUrl);

        // 输出URL
        response.getWriter().println("URL: " + url);
        response.getWriter().println("URI: " + uri);
        response.getWriter().println("Encoded URL: " + encodedUrl);
    }
}