为什么我会抛出异常，当我运行的Response.Redirect（）？ [英] Why do I get a thrown exception when I run Response.Redirect()?

问题描述

我学习ASP.NET，并期待在查询字符串。

I am learning ASP.NET and was looking at QueryStrings.

一个我一直在寻找的例子挂钩一个按钮到一个重定向的呼叫：

One of the examples I was looking at hooks a button up to a redirect call:

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        try
        {
            //throws ThreadAbortException: "Thread was being aborted"
            Response.Redirect("Form2.aspx");
        }
        catch (Exception Ex)
        {
            System.Diagnostics.Debug.WriteLine(Ex.Message);
        }
    }

为什么它抛出一个ThreadAbortException在这里？这是否正常？我应该做些什么呢？例外的是通常不是一件好事，所以，当我看到这我感到震惊。

Why does it throw a ThreadAbortException here? Is that normal? Should I do something about this? Exceptions are generally not a good thing, so I was alarmed when I saw this.

推荐答案

这是设计使然。这知识库文章所描述的行为（也为 Request.End（）和的Server.Transfer（）方法）。

This is by design. This KB article describes the behavior (also for the Request.End() and Server.Transfer() methods).

有关的Response.Redirect（）存在过载：

Response.Redirect(String url, bool endResponse)

如果您通过 endResponse = FALSE ，然后在不引发异常（但运行时将继续处理当前请求）。

If you pass endResponse=false, then the exception is not thrown (but the runtime will continue processing the current request).

如果 endResponse = TRUE （或者，如果你使用过载而没有在布尔参数），则抛出异常，并且当前请求将立即被终止。

If endResponse=true (or if you use the overload without the bool argument), the exception is thrown and the current request will immediately be terminated.

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