从Google Image获取结果时，在GetResponseStream（）中出现问题 [英] Issue in GetResponseStream() when getting results from Google Image

问题描述

以下是我的代码。我正在尝试从谷歌获取我给定关键词的图像结果。

在

responseStream.Length附近获得一个问题'responseStream.Length'扔了一个类型'System.NotSupportedException'的异常

responseStream.Position as 'responseStream.Position'引发类型'System.NotSupportedException'的异常

Below is my code. I'm trying to get image results from google for my given key words.
Getting an issue near
responseStream.Length as 'responseStream.Length' threw an exception of type 'System.NotSupportedException'
responseStream.Position as 'responseStream.Position' threw an exception of type 'System.NotSupportedException'

string requestUri = string.Format("http://images.google.com/images?q={0}&ndsp={1}&start={2}&filter={3}&safe={4}",query, RESULTS_PER_QUERY.ToString(),(startPosition + i).ToString(), (filterSimilarResults) ? "1" : "0", safeSearchStr);

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(requestUri);
                string resultPage = string.Empty;
                using (HttpWebResponse httpWebResponse = (HttpWebResponse)request.GetResponse())
                {
                    using (Stream responseStream = httpWebResponse.GetResponseStream())
                    {
                        using (StreamReader reader = new StreamReader(responseStream))
                        {
                            resultPage = reader.ReadToEnd();
                        }
                    }
                }

推荐答案

我认为你是指一些旧资源来获取图像使用谷歌图片搜索，谷歌搜索参数不断变化。我用以下参数进行了简单测试，并且能够接收页面内容。

I think you are referring some old resource for fetching images using google image search, time to time google search parameters are changing. I have done below simple test with minimum parameters and able to receive page content.

string url = string.Format("https://www.google.com/search?site=imghp&tbm=isch&q={0}", "codeproject");
HttpWebRequest request =
(HttpWebRequest)WebRequest.Create(url);
string resultPage = string.Empty;
using (HttpWebResponse httpWebResponse =
            (HttpWebResponse)request.GetResponse())
{
    using (Stream responseStream =
                httpWebResponse.GetResponseStream())
    {
        using (StreamReader reader =
                    new StreamReader(responseStream))
        {
            resultPage = reader.ReadToEnd();
        }
    }
} 

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