Google Web Service 客户端程序

徐祐奭 (Wooseok Seo)

3.67/5 (12投票s)

2002年4月28日

159979

892

一个非常简单的使用 Google 网站服务的客户端程序

Sample Image

这是一个非常简单的客户端程序，它使用了Google的网络服务。您可以从Google下载SDK。

示例代码如下所示。

private void buttonSearch_Click(object sender, System.EventArgs e)
{
    // before search

    //

    labelSearchText.Text = "Searching...";
    labelSearchText.Update();


    // create Google Search object

    //

    GoogleSearchService s = new GoogleSearchService();
    GoogleSearchResult r;


    // call search function

    //

    r = s.doGoogleSearch(
        "",  ; You license key!
        textSearch.Text, 
        0, 
        10, 
        false, "", false, "", "", "");


    // create HTML document to show result

    //

    string strFile = "result.html";
    StreamWriter sw = File.CreateText(strFile);


    // Header inforamtion

    //

    sw.WriteLine("<HTML><HEAD></HEAD><BODY>");


    // Category 

    //

    foreach(DirectoryCategory dc in r.directoryCategories)
    {
        sw.Write("<b>Category</b> : ");
        sw.WriteLine(dc.fullViewableName);
        sw.WriteLine("<br><br><br>");
    }


    // iterate items

    //

    foreach(ResultElement re in r.resultElements)
    {
        // Title

        //

        string strTitle = "<a href=\"" + re.URL + "\">" + 
                          re.title + "</a><br>";
        sw.WriteLine(strTitle);
        
        // snippet

        //

        string strSnippet = re.snippet +"<br>";
        sw.WriteLine(strSnippet);

        // link and cache size

        //

        string strLink = "<a href=\"" + re.URL + "\">" + re.URL + "</a> - " 
                         + re.cachedSize + "<br><br>";
        sw.WriteLine(strLink);

        // 2 line

        //

        sw.WriteLine("<br><br>");
    }


    // file close

    //

    sw.Close();

    
    // result inforamtion

    //

    labelSearchText.Text = textSearch.Text + " 's web search";

    int estResults = r.estimatedTotalResultsCount;
    double ldTime = r.searchTime;
    labelSearchResult.Text = "Total " + Convert.ToString(estResults) + "  " + 
                    "1 - 10 seach result  Total time:" + 
                                         Convert.ToString(ldTime);


    // browsing!

    //

    object obj = null;
    DirectoryInfo di = new DirectoryInfo(Environment.CurrentDirectory);
    string strFilePath = di.FullName + "\\" + strFile;
    WebBrowser.Navigate(strFilePath, ref obj, ref obj, ref obj, ref obj);
}


// Google API homepage
//
private void linkLabel1_LinkClicked(object sender, 
                      System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
{
    object obj = null;

    WebBrowser.Navigate("http://www.google.com/apis/", ref obj, ref obj, 

                        ref obj, ref obj);
}