8

我编写了一个小程序来分析来自 StackExchange API 的个人资料数据，但该 api 将无法解析/无法读取的数据返回给我。

收到的数据：（使用c#自行下载）

\u001f�\b\0\0\0\0\0\u0004\0mRMo�0\f�/:�d$�c˱�'�^{/\u0006��\u0018G�>\I�� \u0015...... \u0018tk��\u0014�M]r�dLG�v0~Fj=����1\u00031I�>kTRA\"(/+.����;Nl\u0018�?h�\u0014��P藄 �X�aL��w���#�3\u0002��+�\u007f����\u0010����\u000f�p]��v\u007f����\t�����\ nf��״\u0018\u0014eƺ�_��1x#j^-�c� AX\t���\u001aT��@qj\u001aU7������\u0014\"\a^\b� #\u001e��QG��%�y�\t�ח������q00K\av\u0011{ظ���\u0005\"\u001d+|\u007f����'�\u0016~� �8\u007f�\u0001-h�]O\u007fV�o\u007f\u0001~Y\u0003��\u0002\0\0

想要的数据：（从我的浏览器复制粘贴）

{"items":[{"badge_counts",{"bronze":987,"silver":654,"gold":321},"account_id":123456789,"is_employee":false,"last_modified_date":1250612752," last_access_date":1250540770,"age":0,"reputation_change_year":987,"reputation_change_quarter":654,"reputation_change_month":321,"reputation_change_week":98,"reputation_change_day":76,"reputation":9876,"creation_date" :1109670518,"user_type":"registered","user_id":123456789,"accept_rate":0,"location":"Australia","website_url":" http://example.org ","link":" http://example.org/username ","profile_image":" http://example.org/username/icon.png ","display_name":"username"}],"has_more":false,"quota_max":300,"quota_remaining":300}

我写了这个（扩展）方法来从互联网上下载一个字符串：

public static string DownloadString(this string link)
{
    WebClient wc = null;
    string s = null;
    try
    {
        wc = new WebClient();
        wc.Encoding = Encoding.UTF8;
        s = wc.DownloadString(link);
        return s;
    }
    catch (Exception)
    {
        throw;
    }
    finally
    {
        if (wc != null)
        {
            wc.Dispose();
        }
    }
    return null;
}

然后我在互联网上搜索并找到了一种下载字符串的方法，使用了其他一些策略：

public string DownloadString2(string link)
{
    WebClient client = new WebClient();
    client.Encoding = Encoding.UTF8;
    Stream data = client.OpenRead(link);
    StreamReader reader = new StreamReader(data);
    string s = reader.ReadToEnd();
    data.Close();
    reader.Close();
    return s;
}

但是这两种方法都返回相同的（未读/不可解析的）数据。

如何从 API 获取可读数据？有什么遗漏吗？

4

2 回答 2

10

在我看来，输出被压缩了。您可以使用GZipStreamwhich can be foundSystem.IO.Compression来解压缩字节。

public static string DownloadString(this string link)
{
    WebClient wc = null;
    try
    {
        wc = new WebClient();
        wc.Encoding = Encoding.UTF8;
        byte[] b = wc.DownloadData(link);

        MemoryStream output = new MemoryStream();
        using (GZipStream g = new GZipStream(new MemoryStream(b), CompressionMode.Decompress))
        {
            g.CopyTo(output);
        }

        return Encoding.UTF8.GetString(output.ToArray());
    }
    catch
    {

    }
    finally
    {
        if (wc != null)
        {
            wc.Dispose();
        }
    }
    return null;
}
于 2015-12-22T14:34:33.880 回答
1

如您所见-您使用的编码错误-

在此处输入图像描述

于 2015-12-22T15:32:33.683 回答