转发和sendRedirect之间的区别 [英] Difference between forward and sendRedirect

问题描述

我在网络上的一个采访问题中遇到了这两个声明:

I have come across these two statements on an interview question on the web:

 1.forward causes object stored in request as attributes to be lost;
 2.sendRedirect causes object stored in request as attributes to be lost;

我现在确信第一条语句是错误的，因为使用请求肯定是正向传递值的工作方式，但是我对sendRedirect感到困惑，从这个意义上说这是正确的吗?专家可以帮忙吗?谢谢.

I am now confident that the first statement is wrong since using request is definitely how forward works to pass values, but I am confused about the sendRedirect one, is it correct in this sense? Could experts help? Thanks.

推荐答案

与forward发生在服务器端不同，sendRedirect导致浏览器向重定向位置发起新请求，这意味着第二条语句是真的.

Unlike forward which happens on the server-side, sendRedirect causes the browser to initiate a new request to the redirect location, which means the second statement is true.

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