将javax.servlet.http.HttpServletRequest转换成org.asynchttpclient.Request

可以使用下面的代码将javax.servlet.http.HttpServletRequest对象转换为org.asynchttpclient.Request对象：

import org.asynchttpclient.Request;
import org.asynchttpclient.RequestBuilder;
import javax.servlet.http.HttpServletRequest;

public class RequestConverter {
    public static Request convert(HttpServletRequest servletRequest) {
        String url = servletRequest.getRequestURL().toString();
        RequestBuilder requestBuilder = new RequestBuilder()
                .setUrl(url)
                .setMethod(servletRequest.getMethod());

        // 将HttpServletRequest中的Header添加到AsyncHttpClient的Request中
        servletRequest.getHeaderNames().asIterator()
                .forEachRemaining(headerName -> {
                    String headerValue = servletRequest.getHeader(headerName);
                    requestBuilder.addHeader(headerName, headerValue);
                });

        // 将HttpServletRequest的Body添加到AsyncHttpClient的Request中
        String body = servletRequest.getReader().lines().collect(Collectors.joining(System.lineSeparator()));
        requestBuilder.setBody(body);

        return requestBuilder.build();
    }
}

这段代码会将HttpServletRequest对象的URL、方法、Header和Body都复制到AsyncHttpClient的Request对象中。