StreamReader在Writeline函数上显示内容，但如果在变量中使用它，则返回空

发布于 2025-01-23 08:03:04 字数 667 浏览 2 评论 0原文

有人可以帮我解决这个问题吗？当我在Writeline上使用阅读器时，它会完美地写入消息，但是当我尝试保存作为变量时，它会返回一个空字符串。我这样做是因为之后我想将log保存在文件上。

using (var stream = ex.Response.GetResponseStream())
                using (var reader = new StreamReader(stream, Encoding.UTF8))
                {
                    stream.Seek(0, SeekOrigin.Begin);
                    Console.WriteLine("Username: " + usernames[i]);
                    Console.WriteLine(reader.ReadToEnd());
                    content = reader.ReadToEnd().ToString();
                    Console.WriteLine(content);
                    Console.WriteLine("URL: https://api.bitbucket.org/2.0/users/" + usernames[i] + "\n");

原文

Can somebody help me solving this? When I use the reader on WriteLine it writes the message perfectly, but when I try to save as a variable too, it return an empty string. I'm doing this because I want to save the log on a file afterwards.

using (var stream = ex.Response.GetResponseStream())
                using (var reader = new StreamReader(stream, Encoding.UTF8))
                {
                    stream.Seek(0, SeekOrigin.Begin);
                    Console.WriteLine("Username: " + usernames[i]);
                    Console.WriteLine(reader.ReadToEnd());
                    content = reader.ReadToEnd().ToString();
                    Console.WriteLine(content);
                    Console.WriteLine("URL: https://api.bitbucket.org/2.0/users/" + usernames[i] + "\n");

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冰火雁神 2025-01-30 08:03:04

读者向一个方向读取：向前。如果您想两次读取相同的值，则必须备份并再次阅读。

修改您的代码如下：

using (var stream = ex.Response.GetResponseStream())
using (var reader = new StreamReader(stream, Encoding.UTF8))
{
    stream.Seek(0, SeekOrigin.Begin);
    Console.WriteLine("Username: " + usernames[i]);
    Console.WriteLine(reader.ReadToEnd());

    stream.Seek(0, SeekOrigin.Begin);
    content = reader.ReadToEnd().ToString();
    Console.WriteLine(content);
    Console.WriteLine("URL: https://api.bitbucket.org/2.0/users/" + usernames[i] + "\n");

A reader reads in one direction: forward. If you want to read the same value twice, you have to back up and read it again.

Modify your code as follows:

using (var stream = ex.Response.GetResponseStream())
using (var reader = new StreamReader(stream, Encoding.UTF8))
{
    stream.Seek(0, SeekOrigin.Begin);
    Console.WriteLine("Username: " + usernames[i]);
    Console.WriteLine(reader.ReadToEnd());

    stream.Seek(0, SeekOrigin.Begin);
    content = reader.ReadToEnd().ToString();
    Console.WriteLine(content);
    Console.WriteLine("URL: https://api.bitbucket.org/2.0/users/" + usernames[i] + "\n");

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